Questions Asked on
April 5, 2010

  1. Chemisty

    Using the equation Zeff = Z - S and assuming that core electrons contribute 1.00 and valence electrons contribute 0.00 to the screening constant, S, calculate Zeff for the 2p electrons in F^- and Na^+ Repeat this calculation using Slater's rules to

    asked by Jerica
  2. Chemistry (Aqueous Solutions)

    This one stumped me alot... Aqueous solutions of a compound did not form precipitates with Cl-, Br-, I-, SO4 2-, CO3 2-, PO4 3-, OH-, or S 2-. This highly water-soluble compound produced the foul-smelling gas H2S when the solution was acidified. This

    asked by Macey
  3. AP Chemistry

    (a) When 300.0 milliliters of a solution of 0.200 molar AgNO3 is mixed with 100.0 milliliters of a 0.0500 molar CaCl2 solution, what is the concentration of silver ion after the reaction has gone to completion? (b)Write the net cell reaction for a cell

    asked by Jessica
  4. College Chemistry (Hard)

    The easiest fusion reaction to initiate is 1-1H + 1-1H------> 4-2He + 1-0 n The 1-1 indicates a small one above the other on the left side of the symbol of the element.So for 1-0n is a one above a zero on the left side of n (neutron). The number on the top

    asked by Jim
  5. Chemistry

    In a reaction chamber, 3.0mol of aluminum is mixed with 5.3mol Cl2 and reacts. The reaction is described by the following balanced chemical equation. 2Al + 3Cl2 ==> 2AlCl3 a)Identify the limiting reagent for the reaction. b)Calculate the number of moles or

    asked by Jack
  6. Chemistry

    Methanol (CH3OH) is used in the production of many chemicals. methanol is made by reacting carbon monoxide and hydrogen at high temperature and pressure. CO(g) + 2H2(g) ==> CH3OH(g) a) How many moles of each reactant are needed to produce 3.60 x 10^2 g

    asked by Kim
  7. Chemistry

    Lithium nitride reacts with water to form ammonia and aqueous lithium hydroxide. Li3N(s) + 3H2O(l) ==> NH3(g) + 3LiOH(aq) a)What mass of water is needed to react with 32.9g Li3N? b)When the above reaction takes place, how many molecules of NH3 are

    asked by Kim
  8. physics

    A 82 kg adult sits at one end of a 8.6 m long board. His 23 kg child sits on the other end. Where should the pivot be placed so that the board is balanced, ignoring the board's mass? Find the pivot point if the board is uniform and has a mass of 15 kg.

    asked by Anonymous
  9. Chemistry (empirical formula)

    what is the empirical formula of a compound that is 62.0% C, 10.4% H, and 27.5% O by mass?

    asked by Macey
  10. Chemistry

    Suppose that a PES experiment is performed in which mercury vapor is irradiated with ultraviolet light of wavelength 58.4 nm. Energy of a photon of this light is 21.2 eV. Write an equation that shows the process corresponding to the first ionization energy

    asked by Jerica
  11. Chem

    A 2.00L flask is filled with propane gas(C3H8)at 1.00atm and 15C. What is the mass of propane in the flask?

    asked by Britt
  12. Physics

    A baseball catcher puts on an exhibition by catching a 0.150 kg ball dropped from a helicopter at a height of 100 meters above the catcher. If the catcher "gives" with the ball for a distance of 0.750 meters while catching it, what average force is exerted

    asked by Omari
  13. writing

    I have to write an eight-sentence paragraph that fully develops this topic. A high school diploma is important to my future...... (i know it's not that great of a topic but i have no options) but i keep going in circles and i can't get my ideas together .I

    asked by me
  14. Projectile Motion Problem

    A projectile is shot straight up from the earth's surface at a speed of 1.20×10^4 km/h. How high does it go?

    asked by Mike
  15. Physics Find mass and radius of planet.

    While visiting Planet Physics, you toss a rock straight up at 15 m/s and catch it 2.4 s later. While you visit the surface, your cruise ship orbits at an altitude equal to the planet's radius every 240 min. What is the mass of Planet Physics? What is the

    asked by Mike
  16. physics

    0.11 mol of argon gas is admitted to an evacuated 50cm^3 container at 10 degree C. The gas then undergoes an isothermal expansion to a volume of 200cm^3. What is the final pressure of the gas?

    asked by paro
  17. Chemistry

    If delta G for the dissociation of Borax at 30 degrees C (higher than room temperature) is positive, why does it dissolve at room temperature?

    asked by Jane
  18. physics

    Many cultures around the world still use a simple weapon called a blowgun, a tube with a dart that fits tightly inside. A sharp breath into the end of the tube launches the dart. When exhaling forcefully, a healthy person can supply air at a gauge pressure

    asked by paro
  19. Chemistry

    How many milliliters of 0.0050 N KOH are required to neutralize 19 mL of 0.0050 N H2SO4? How many milliliters of 0.0050 N KOH are required to neutralize 19 mL of 0.0050 N HCl?

    asked by Anonymous
  20. arithmetic

    2.75+.003+.158=

    asked by jaylynn
  21. Chemistry

    5F2(g) + 2NH3(g) ==> N2F4(g) + 6HF(g) a)If you have 66.6 g NH3, how many grams of F2 are required for complete reaction? b)How many grams of NH3 are required to produce 4.65g HF? c)How many grams of N2F4 can be produced from 225g F2?

    asked by Danny
  22. Chemistry

    what do limiting reagents have to do with... 5F2(g) + 2NH3(g) ==> N2F4(g) + 6HF(g) a)If you have 66.6 g NH3, how many grams of F2 are required for complete reaction? b)How many grams of NH3 are required to produce 4.65g HF? c)How many grams of N2F4 can be

    asked by Keith
  23. Chemistry

    Consider the following reaction: PbCl2 + 2 NaOH -> Pb(OH)2 + 2 NaCl What would be the major species observed floating in solution after one mole of PbCl2 and 2 moles of NaOH are mixed in aqueous solution? 1. Na+ ions, Cl− ions and H+ ions 2. Pb2+ ions,

    asked by Cher
  24. chemistry

    When the iron (II) ammonium sulfate was mixed with the [Fe2+(CN-)6]4- ion, the precipitate was initially white but turned blue upon exposure to air. What happened to the iron (II) ion when the precipitate turned blue?

    asked by Anonymous
  25. biology

    What environmental conditions would favor sexual reproduction? What environmental conditions would favor asexual reproduction? Organism - sexual reproduction - gonads asexual reproduction - honeybees - Is pillbugs an asexually organism or is a sexually

    asked by Rachel
  26. Chemistry

    The Cu2+ ion can be separated from Ag+, Ca2+, and K+ in aqueous solution by 1. precipitation of Cu2+ as Cu(OH)2(s) with 6 M NaOH(aq). 2. precipitation of Ag+, Ca2+, and K+ as the carbonates. 3. None of these procedures will separate Cu2+ from the other

    asked by Christina
  27. English

    Identify the type of conjunction in the following sentence. We'll be able to eat when Grandma arrives. A)conjunctive adverb B)coordinating conjunction C)correlative conjunction D)subordinating conjunction

    asked by nick
  28. English

    The mom left the room with a modicum of respect after her baby began ____. a) sleeping b) screaming c) talked d) singing B???

    asked by Keen
  29. computer c++

    write a program that produce a bar chart showing the population growth of Prairieville, a small town in the Midwest, at 20 year intervals during the past 100 years. the program should read in the population figures (rounded to the nearest 1000 people) for

    asked by mike
  30. Chemistry

    Ammonia is formed by reacting nitrogen and hydrogen gases. How many liters of ammonia gas is formed from 13.7 L of hydrogen gas at 93C and pressure of 40 kPa?

    asked by dale
  31. Chemistry

    The reaction of flourine with ammonia produces dinitrogen tetrafluoride and hydrogen fluoride. 5F2(g) + 2NH3(g) ==> N2F4(g) + 6HF(g) a)If you have 66.6 g NH3, how many grams of F2 are required for complete reaction? b)How many grams of NH3 are required to

    asked by Keith
  32. Chem B

    The air in a dry, sealed 2L soda bottle has a pressure of 0.998 atm at sea level at a temperature of 34C. what will be it's pressure, if it is brought to higher altitude where the temperature is only 23C?

    asked by Courtney
  33. Physics

    A 115kg astronaut throws an 18kg tool kit at 4.6m/s away from a spacecraft in deep space. Show that the astronaut will recoil at a speed of 0.72m/s

    asked by sherri
  34. Chemistry

    A 0.490 M solution of an unknown monoprotic weak acid, HA, is 2.80% ionized. What is the value of Ka for HA?

    asked by Jenny
  35. physics

    somewhere between earth and the moon gravity from these two bodies on a space pod would cancel. Is this location nearer to earth or the moon?

    asked by elisia
  36. Physics

    The center of a 1.10km diameter spherical pocket of oil is 1.10km beneath the Earth's surface. Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a uniform Earth? Assume the density of oil is . Express

    asked by Adam
  37. English

    Identify the word in bold type. None of those bagels look fresh. A)demonstrative pronoun B)indefinite pronoun C)interrogative pronoun D)relative pronoun E)not a pronoun (B)

    asked by george
  38. Chemistry

    I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. A 2.00L flask is filled with propane gas(C3H8)at 1.00atm and 15C. What

    asked by Help please
  39. Biology Research Paper

    Is this the correct way to cite a source using parenthetical documentation in my research paper? Coal is a solid fossil fuel formed over millions of years by decay of land vegetation. When layers are compacted and heated over time, deposits turn into coal.

    asked by mysterychicken
  40. Chemistry

    Determine the density of chlorine gas at 22C and 1.00 atm pressure.

    asked by Anonymous
  41. physics

    A light string has its ends tied to two walls separated by a distance equal to five-eighths the length of the string. A 53 kg mass is suspended from the center of the string, applying a tension in the string. What is the tension in the two strings of

    asked by pop
  42. Chemistry

    NaHCO3 + HCl = NaCl + H2O + CO2 The HCl in the reaction is 2 molar what i need it to figure out how much CO2 if produced when 10g of each substance is mixed. And the limmiting reagent and any information that can be produced around the ammount of CO2

    asked by Souza
  43. Chemistry

    According to the kinetic-molecular theory, gases are highly compressible because the particles of they consist: a. lose energy when they collide with each other b. are very apart from each other c. experience a strong force of attraction d. experience a

    asked by Ana
  44. business math

    If Naomi decides that she will invest $3,000 per year in a 6% annuity for the first ten years, $6,000 for the next ten years, and $9,000 for the next ten years, how much will she accumulate? Treat each ten year period as a separate annuity. After ten years

    asked by Heather
  45. Math

    Probability: There are 10 yellow cards, 6 green, 9 orange, and 5 red cards in a stack of cards turned face down. Once a card is drawn, it is not replaced. What is the probability that you will select 2 yellow cards?

    asked by Joe
  46. For <b>marie flore joseph</b>

    Please do not add your new question as a response to somebody else's post. click on "Post a New Question" above to post your problem. Here is your question : Math - marie flore joseph, Monday, April 5, 2010 at 10:37pm the difference of the squares of two

    asked by Reiny
  47. Chemistry

    Calculate and compare the mass of the reactants with the mass of the products for each equation. a)2KClO3 (s) ==> 2KCl(s) + 3O2 (g) b)4NH3(g) + 6NO(g) ==> 5N2(g) + 6H2O(g) c)4K(s) + O2(g) ==> 2K2O(s) Show that each balanced equation obeys the law of

    asked by Ralph
  48. physics

    What is the magnitude of the gravitational field at the surface of a neutron star whose mass is 1.60 times the mass of the Sun and whose radius is 10.5 km?

    asked by mary
  49. English

    True or False? An adverb is a word used to modify a verb. Ture???

    asked by Keen
  50. physics

    A light string has its ends tied to two walls separated by a distance equal to five-eighths the length of the string. A 53 kg mass is suspended from the center of the string, applying a tension in the string. What is the tension in the two strings of

    asked by pop
  51. Physics

    While visiting Planet Physics, you toss a rock straight up at 15 and catch it 2.4 later. While you visit the surface, your cruise ship orbits at an altitude equal to the planet's radius every 240 min . What is the mass of Planet Physics? Express your

    asked by Adam
  52. English

    True or False? An appositive is a noun that is placed after another noun in order to tell more about it and it's usually set off with commas.

    asked by Keen
  53. Physics

    Four 9.0kg- spheres are located at the corners of a square of side 0.60m . Calculate the magnitude of the gravitational force exerted on one sphere which is in left and down corner of the square by the other three. Express your answer using two significant

    asked by Michael
  54. Chemistry

    I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. Determine the density of chlorine gas at 22C and 1.00 atm pressure.

    asked by Help please
  55. Sports and Society in Ancient Greece and Rome

    OK. I am trying to work on a project and I need help with one or two things. 1. I have come up with an idea, but can't seem to get it to fit in the fields of sports or society in the ancient world. I wanted to do a web page on Actaeon and Artemis, but I

    asked by Elisabeth
  56. 12th grade

    can you please help me to do my math homework on geometry 7.5

    asked by lachauncia
  57. physics

    Objects with masses of 190 kg and a 490 kg are separated by 0.380 m. (a) Find the net gravitational force exerted by these objects on a 57.0 kg object placed midway between them. N (b) At what position (other than infinitely remote ones) can the 57.0 kg

    asked by Kelsey
  58. chem101

    50.0ml of 0.10M HCL{aq} was added to 40.0ml of 0.10M NaOH{aq} and the mixture was stirred,then tested with a pH meter.What reading should be obtained for pH at 25.0degrees celcias?

    asked by justin
  59. Chemistry

    Heating an ore of antimony (Sb2S3) in the presence of iron gives the element antimony and iron(II) sulfide. Sb2S3(s) + 3Fe(s) ==> 2Sb(s) + 3FeS(s) When 15.0g Sb2S3 reacts with an excess of Fe, 9.84g Sb is produced. What is the percent yield of this

    asked by Ken
  60. English

    She is spending money like she have plenty. a) Change the words "like" to "as if" and "have" to "has". b) The word "is" should be "are". c) The word "have" should be "has". d) There are no errors in theis sentence. A???

    asked by Keen
  61. e

    A walk would invigorate you after a tiring day, especially if you are ____. a) hungry b) smelly c) injured d) tired D????

    asked by Keen
  62. chem

    a sample of gas is compressed from 3.25 l to 1.20 l at constant temperature. if the pressure of this gas in the 3.25 l volume is 100.00 kpa, what will the pressure be at 1.20 l ?

    asked by hasan
  63. statistics

    a study found that the means waiting time to see a physican at an outpatient clinic was 40 minutes with a standard deviation of 28 minutes. use excel to find each probability. a. what is the probability of more than an hours wait? B. less than 20 minutes?

    asked by tina
  64. physics

    No glass is perfectly transparent. Mainly because of reflections, about 94% of light passes through an average sheet of clear windowpane. The 6% loss is not noticed through a single sheet, but through several sheets it is apparent. How much light is

    asked by Jorge
  65. algebra

    ln(3x-4)-Ln(x+1)=Ln(2)

    asked by Irma
  66. Chemistry (check formula please)

    how much energy (in kJ) is required to change the temp of 1.00 kg of Fe from 25.0 degrees celsius to 1515 degrees celsius? the specific heat capacity of iron is 0.449 J/g*K. this is the answer i got. q=(.449)(1.00)(1490)= 669.01 kJ

    asked by Danielle
  67. math

    A rocket is fired straight up from the ground with an initial velocity of 800 feet per second. (a) How long does it take the rocket to reach 3200 feet? (b) When will the rocket hit the ground?

    asked by emfn
  68. computer science

    in one the chapter 3 programming challenges you were asked to write a program that converts a celsius temperature to fahrenheit. Modify that program so it uses a loop to display a table of celsius from 0 to 20 and their Fahrenheit equivalents.

    asked by jay
  69. biology

    What happen if ECB became resistant to Bt?

    asked by 2brite
  70. Chemistry

    which of the following substances (with specific heat provided) would show the greatest temperature change upon absorbing 100.0 J of heat?

    asked by Bryson
  71. Chemistry: Acid Base Equilbria

    Citric acid (pKa1 = 3.13, pKa2 = 4.76, pKa3 = 6.40) is found in citrus fruit. Calculate the approximate pH of lemon juice, which is about 5% citric acid by mass. Can someone set this one up for me?

    asked by Jeena
  72. math

    Following are three sets of letters. Draw one letter from Set 1 and place it in Set 2. Then draw one letter from Set 2 and place it in Set 3. Finally, draw a letter from Set 3. What is the probability that the last letter drawn is a B? B C B B B B Set 1

    asked by Tasha
  73. computer science

    write a program that asks the user to enter today's sales rounded to the nearest $100 for each of three stores. the program should then display a bar graph comparing each store's sales. create each bar in the graph by displaying a row of astericks. each

    asked by mike
  74. physical science

    A butterfly at eye level is 18 cm in front of an plane mirror. You are behind the butterfly, 45 cm from the mirror. What is the distance between your eye and the image of the butterfly in the mirror?

    asked by Candy
  75. math

    Following are three sets of letters. Draw one letter from Set 1 and place it in Set 2. Then draw one letter from Set 2 and place it in Set 3. Finally, draw a letter from Set 3. What is the probability that the last letter drawn is a B? B C B B B B Set 1

    asked by Tasha
  76. English

    True or False Depending on the type of sentence, it will always end with a period, question mark or exclamation mark.

    asked by Keen
  77. chem lab (webwork)

    Which of the following is NOT true of colligative properties? Colligative properties are... A. dependent on the mass of solute present. B. independent of the chemical identity of the solute. C. responsible for lowering the vapor pressure of a solution

    asked by UCI studebt
  78. Calculus

    Find the scalar and vector projections of b onto a. a = 2i - j + 6k, b = j + (1/2)k compab = projab =

    asked by Mike
  79. statistics

    In an election for student council president at Russell Sage College, 80 students were polled and asken for whome the planned to vote. the following results of the poll were Allison 22, Emily 18, Kimberly 20 Johanna 14, Other 6. If one student from Russell

    asked by Krystle
  80. English

    Identify the word in bold type. THIS is the dog I was telling you about. A)demonstrative pronoun B)indefinite pronoun C)interrogative pronoun D)relative pronoun E)not a pronoun

    asked by nick
  81. English

    Identify the word in bold type. Do you know someone who can fix a lamp? A)demonstrative pronoun B)indefinite pronoun C)interrogative pronoun D)relative pronoun E)not a pronoun

    asked by george
  82. computer science

    write a program that asks the user to enter today's sales rounded to the nearest $100 for each of three stores. the program should then display a bar graph comparing each store's sales. create each bar in the graph by displaying a row of astericks. each

    asked by marcus
  83. chemistry(check my work)

    The initial pressure for the compounds involved in the reaction displayed were determined to be P(SO2(g)) = 0.5932 atm, P(O2(g)) = 0.4886 atm, P(SO3(g)) = 0.09287 atm. Calculate the value of the equilibrium constant (Kp) at 1000 K if the equilibrium

    asked by bme1
  84. physics

    A butterfly at eye level is 18 cm in front of an plane mirror. You are behind the butterfly, 45 cm from the mirror. What is the distance between your eye and the image of the butterfly in the mirror?

    asked by Susan
  85. stats

    7. Calculate b0 and b1 and make an equation of regression line for the set of data given in Table 3 Table 3 x y 1 12 2 15 3 16 5 18 6 21 8 23 A=3.135451505 B= 14.76588629 R^2=.8651908126 R=.9301563377

    asked by Statistics, PLease HELp!!!
  86. geometry

    a snow globe has a diameter of 6 inches.find its exact volume.then approximate its volume using 3.14 for [pi]

    asked by Anonymous
  87. chemistry

    How many moles of water are produced from the combustion of 3.5 mol of hydrogen and 5.2 mol of oxygen?

    asked by Sam
  88. chemistry

    How many moles of water are produced from the combustion of 3.5 mol of hydrogen and 5.2 mol of oxygen?

    asked by Sam
  89. business math

    After looking at the results of her calculations, Naomi has decided to aim for $500,000 savings by the time she retires. She expects to have a starting salary after college of $25,000 to $35,000 and she has taken into account all of the living expenses

    asked by Heather
  90. English

    Select the correct pronoun: "Go find ___ and say what you have to say." A)him B)he

    asked by nick
  91. physics

    Three charges of 5 x 10^(-6) C are placed on the vertices of an equilateral triangle of 10cm. Calculate force on each charge.

    asked by Edwin
  92. Chemistry

    Could you please tell me how to work out the net balanced equation of 'aqueous solutions of sodium sulfate and barium nitrate when they are mixed?' *Do we just ignore sulfate and nitrate???????

    asked by Alloush
  93. Chemistry

    H2O(l) = H2O(g) deltaHvap = + 40.7kJ shows the change in enthalpy when 1mol of liquid water vaporizes into water vapor. This is called the molar heat of vaporization. Given this information which is the proper value for the molar heat of condensation?

    asked by Tori
  94. English

    According to the authorities; only 35% of criminals go to jail. a) Use a period after "authorities" (authorities. Only) b) Use a comma after "authorities" (authorities, only) c) Use a colon after "authorities" (authorities: only) d) There are no errors in

    asked by Keen
  95. Chemistry

    Why do we have these two equations: ΔH° = ΣD (bond broken) – ΣD (bond formed) and ΔH = Σ ΔHf products - Σ ΔHf reactant I don't understand when we use which one and why? Please help. Thanks.

    asked by Tom
  96. business math

    #3 of case study: If Naomi invests in a stock portfolio, her returns for 10 or more years will average 10%-12%. Naomi realizes that the stock market has higher returns because it is a more risky investment than a savings account or a CD. She wants her

    asked by Heather
  97. English

    They left the oven on; consequently, the roast was burnt beyond recognition. A)conjunctive adverb B)coordinating conjunction C)correlative conjunction D)subordinating conjunction

    asked by george
  98. World History

    how would you compare the nature of the postwar world envisioned by the Allies in World Wars I and II?

    asked by Mia
  99. microeconomics

    The short-run cost curve for each firm's long run equilibrium output is C=y^2-20y+400. Calculate the short-run average and marginal cost curves. At what output level does short-run average cost reach a minimum? I already know the MC and the SRA is TC/Q. I

    asked by Jill
  100. social studies

    WHAT WAS FRANKLIN D. ROOSEVELT'S COURT PACKING SCHEME? WHAT IMPACT DID IT HAVE ON HIS PRESIDENCY AND WHY DID HE DO IT. PLEASE DISCUSS

    asked by Dellaine
  101. English

    "We give this award to Dexter, without whom we never would have found Mike's shoes." demonstrates correct use of whom. A)true B)false i put true

    asked by george
  102. Calculus

    Find the scalar and vector projections of b onto a. a = b = < 6, 0> compab projab

    asked by Mike
  103. chemistry

    the concentration of aluminium sulfate in an aqueous solution at certain temperature is 2.7x10^-8 mol/l a) calculate Ksp for this salt at this temperature should i assume it is in a saturated solution and just use the given concentration?

    asked by fe
  104. Chemistry

    I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. Determine the pressure inside a televison picture tube with a volume of

    asked by Help please
  105. math

    the scale of two similar quadrilaterals is 1:2. The perimeter of the smaller quadrilateral is 80 centimeters. What is the perimeter of the larger quadrilateral?

    asked by Anonymous
  106. physics

    A 20kg mass moving at a speed of 3m/s is stopped by a constant force of 15N. Show that the stopping time required is 4s.

    asked by sherri
  107. chemistry(check my explanation)

    sorry to repost this question but i'm confused on this part The solubility of borax is directly proportional to temperature. Therefore, the sign of H is A. negative B. positive C. unknown with the given information like you said earlier, borax dissolves

    asked by eng
  108. English

    True or False? A sentence that has an original statement with quotation marks may also have a comma.

    asked by Keen
  109. Physics

    Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun but a much smaller diameter. If you weigh 665N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun

    asked by Mike
  110. business math

    If Naomi invests in a stock portfolio, her returns for 10 or more years will average 10%-12%. Naomi realizes that the stock market has higher returns because it is a more risky investment than a savings account or a CD. She wants her calculations to be

    asked by Heather
  111. college

    To what extent does the War on Terrorism represent a break with previous United States foreign and defense policy?

    asked by Kayson
  112. English

    Which of the following is a proper noun? a) newspaper b) Conchita Alonso c) River d) skyscraper I think the answer is B. Am I correct?

    asked by Keen
  113. English

    True of False? A regular verb is a word that expresses an action; an irregular verb is a non-action word. False???

    asked by Keen
  114. English

    Identify the word in bold type. None of those bagels look fresh. A)demonstrative pronoun B)indefinite pronoun C)interrogative pronoun D)relative pronoun E)not a pronoun

    asked by nick
  115. 2nd grade

    i am a number between 20 and 30, when you put me into 6 equal groups, there is an even number in each group and 1 is left over, what number am I.

    asked by Janae
  116. English

    Identify the word in bold type. This is the dog I was telling you about. A)demonstrative pronoun B)indefinite pronoun C)interrogative pronoun D)relative pronoun E)not a pronoun

    asked by nick
  117. Geometry

    I have a project due this week and I have to make a board game, so I need 15 questions about right triangles. I already have about 7, so is there a website with some examples? This is 10th grade geometry.

    asked by Jenny
  118. English

    True or False? Adverbs often answer the questions: where, when how, how often. True???

    asked by Keen
  119. social sciences

    what is the importance of social capital in achieving sustainable economic development in Caribbean economies.

    asked by dinish
  120. Technology

    24. Explain the differences between the four major types of bridges. Include as part of your answer which bridge structure is the stronger. A bridge is a constructed structure vital for transportation. There are two types of bridges: fixed and movable. A

    asked by y912f
  121. social studies

    EXAMINE AND ANALYYZE THE GENERAL SHORT-TERM IMPACT OF THE NEW DEAL. FINALLY WHAT DO YOU BELIEVE TO HAVE BEEN THE GREASTEST IMPACT OF THE NEW DEAL AND IT'S LEGACY.

    asked by Dellaine
  122. business math

    If I decide to invest in certificates of deposit at 6% interest, how much will i need to deposit annually to accumulate a million dollars?

    asked by Heather
  123. business math

    If Naomi invests in a stock portfolio, her returns for 10 or more years will average 10%-12%. Naomi realizes that the stock market has higher returns because it is a more risky investment than a savings account or a CD. She wants her calculations to be

    asked by Heather
  124. business math

    After looking at the results of her calculations, Naomi has decided to aim for $500,000 savings by the time she retires. She expects to have a starting salary after college of $25,000 to $35,000 and she has taken into account all of the living expenses

    asked by Heather
  125. math

    A weight attached to a spring is pulled down 4 inches below the equilibrium position. Assuming that the frequency of the system is 8/pi cycles per second, determine a trigonometric model that gives the position of the weight at time t seconds.

    asked by ali
  126. algebra

    a given graph pases through points (18,25) and (19,100) a) compute delta x b) assume graph is linear and find slope c) assume its exponential and find growth factor

    asked by cc
  127. math b

    i want to know if this is correct expand the following without using FOIL (4m^2-3)^2 (4m^2)^2-2(4m^2)(3)+3^2 16m^4-8m^2(3)+9 16m^4-24m^2+9

    asked by Annaiiz
  128. business

    Today, many organizations and managers face new challenges every day. One critical aspect of the challenges that managers lack is within the planning stage. You have been asked by your manager to conduct a preliminary search of recommending the two most

    asked by Anonymous
  129. chemistry

    how much CO2 can be produced if 100 g glucose is allowed to react with 100 g O2? which is the limiting reactant, oxygen pr glucose?

    asked by rachel
  130. accounting

    I am attempting to study for an exam for tomorrow and cannot figure out the equity method entries up to 2006 for this problem, can someone please help! Parent Corporation owns 80% of Subsidiary Corporation’s outstanding common stock that was

    asked by Bob
  131. Biology---Urgent!

    s this the correct way to cite a source using parenthetical documentation in my research paper? After millions of years the deposits end up in rock and sediment where oil is trapped in small places. Natural gas is a gaseous fossil fuel that is versatile

    asked by mysterychicken
  132. geometry

    If a kicker is 45 yards from a goal post, which is 10 feet tall, and he kicks the ball with an initial velocity of 75 feet per second, and an angle of 50 degrees above the horizontal, does the ball clear the goal?

    asked by John
  133. english

    literary and non-literary prose.. i have to write a passage citing examples of the above on a source of my choice... so what do they mean.. or how should i go about it...

    asked by pat
  134. algebra

    The perimiter of a rectangle is 150 inches. The length exceeds the width by 29 inches. Find the length and width.

    asked by Anonymous
  135. Mathematicas

    The 6 fourth-grade classes at Marathon Elementary School are having a kick-ball tournament. Each class must play each other one in the tournament. How many kick-ball games must be scheduled?

    asked by Mina
  136. English

    True or False There could be a noun, a verb and an adjective in one sentence.

    asked by Keen
  137. Math

    Mary brought home 1/2 dozen eggs. He accidently dropped the carton on the flor and 1/3 of the eggs broke. How many eggs does she have left? Ms. Sue I still don't understand your answer, please. Thank you

    asked by Rene
  138. Chemistry

    which of the following substances (with specific heat provided) would show the greatest temperature change upon absorbing 100.0 J of heat?

    asked by Bryson
  139. English

    What did the emperor ask Ma Lian to paint? 1. The emperor asked Ma Liang to paint a gold tree and a boat. 2. The emperor asked him to paint a gold tree and a boat. 3. He asked Ma Liang to paint a gold tree and a boat. 4. He asked him to paint a gold tree

    asked by rfvv
  140. Calc

    The Public Health Service monitors the spread of an epidemic of a particularly long lasting strain of the flu in a city of 500,000 people using the logistic function. at the biginning of the first week of monitoring (time zero), 200 cases had been

    asked by Brendan
  141. English

    How did Ma Liang make a gentle wind? 1. By painting a few lines. 2. By painting a few lines, he made a gentle wind. 3. He made a few lines and a gentle wind began to blow. 4. He made a few lines, so he could make a gentle wind. (Are the answers all

    asked by rfvv
  142. English

    After the play ____, several critics made scathing comments about it. a) succeeded b) opened c) closed d) bombed D???

    asked by Keen
  143. English

    The ____ was a conflagration, causing several buildings great damage. a) flood b) snow c) fire d) smoke C???

    asked by Keen
  144. Chemistry

    Naming compounds SF(sub)2 would if be just sulfur fluoride same goes with SF (sub)6 Sulfur Fluoride?

    asked by Anonymous
  145. basic math

    how do you find the first and third quartiles of a set of numbers

    asked by lindaprice
  146. spanish

    the question ask what classes you have how do you answer that in spanish? (i have math english and science)

    asked by Michelle
  147. Astronomy

    Hi, I asked about converting light minutes to light years and was told just do it normally like minutes to years So i have 7 light minutes... 7 mins x (1 hr/60 mins) x (1 day/12 hr) x (1yr/365days) like that?

    asked by Anonymous
  148. Caculus

    Find the angle between the vectors. (Round your answer to the nearest degree.) a = ‹-4, 3› b = ‹√7, 3›

    asked by Mike
  149. Math

    The area of a rectangle is 420 sq. meters. The width is 1 meter longer than half the length, find the dimensions of the court. Not sure how to do this, although I know the answer.

    asked by Randy
  150. Chemistry

    Write a balanced equation: Aluminum reacts with aqueous hydrochloric acid to form hydrogen gas and aqueous aluminum chloride. I think: Al+HCl(aq)-->H(g)AlCl(aq) But I don't really know if I am doing it right or not

    asked by Lou
  151. Math

    2 teams played each other recently. Team 1 scored N points, while team 2 scored M. 1

    asked by CT
  152. s.s

    why american did not have health care

    asked by keisha
  153. geometry

    If a circle has a diameter of 2 3/8 inches, then what is the length of the radius?

    asked by Emily
  154. english

    what is a 6 letter adverb for not proudly that starts with h and ends with ly and the 3erd letter is m

    asked by Joy Garner
  155. chemistry

    What is the equilibrium concentration of ammonium ion in a 0.77 M solution of ammonia (NH3, Kb = 1.8 ´ 10–5) at 25oC?

    asked by Anonymous
  156. Math

    500$ is invested at 8.5% compounded annually. Find how long it will take until the fund grows to $800 The function g(x)= 23(1-.06)^x gives the Celsius temperature in x minutes after a large quantity of ice has been added to a bowl of water. When will the

    asked by kaylarae
  157. Business Math

    If i wanted to accumulate a million dollars by investing money every year into a savings account at 3% for 30 years until retirement how much do i need to deposit each year?

    asked by Heather
  158. Read

    For the sentence " Everyone was excited about the new business venture." Would the word project or the word movement fit best instead of the word venture?

    asked by ******
  159. Chemistry

    Thank you very much. I needed help with one more. A bomb calorimeter evolves 4.66 kJ of heat. If the heat capacity of the calorimeter is 1.38 kJ/Celsius, what is the temp change of the calorimeter? I thought it may be 4.66/1.38= 3.38?

    asked by Danielle
  160. algebra

    an investor has increased my budget by $22,250. The investor does not need to be repaid but rather he becomes part owner of my business. Will the investor contribute enough money to meet the cost of rent and utilities? I must support my answer and write an

    asked by renee
  161. chem

    Carbon monooxide CO is product of incomplete combustion of fuel. Find the volume that 42g of CO gas occupies at STP.

    asked by Bobby
  162. 8th grade

    How do i find the surface area of a rectangular prism?

    asked by Anonymous
  163. college algebra

    3^x-2=11

    asked by irma
  164. Chemistry

    I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. The air in a dry, sealed 2L soda bottle has a pressure of 0.998 atm at

    asked by Help please
  165. Chemistry

    I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. Ammonia is formed by reacting nitrogen and hydrogen gases. How many

    asked by Help please
  166. algebra

    exponential formula (y=c(a)^x) fill in blanks x y 0 ? 5 40 9 1200 15 ?

    asked by cc
  167. algebra

    child is now 3 years old - dad opens account with $10,000 it earns 4.5% annual intrest. a) construct formula (A(t)=Ao(a)^t) b) how much money will be in account when he is 10 years old c) if dad wants account to grow to 100,000 when he is 18 then what

    asked by cc
  168. DrBob222

    I really need help on these chemistry problems. Can you please help me work them. Please?

    asked by Help please
  169. biology

    Two students conducted experiments to study the rate of photosynthesis in Lycopersicon esculentum L. Experiment 1 The students designed an apparatus that measures the rate of water absorption. Experiment 2 The students used a setup that measures oxygen

    asked by Anonymous
  170. algebra

    Not sure if I'm doing this right Ln(3x-4)-Ln(x+1)=Ln(2) My solution: Ln 3x-4/x+1 =Ln2 3x-4/x+1=2/1 2x+2=3x-4 2=x-4 6=x

    asked by Cecilia
  171. geography

    What are the various problems and difficulties that can occur with a society in the middle of the ocean, or a society under the ocean. (Ex. Waste management, or agriculture) I need about 5. Also, what is the necessary technology needed to make the

    asked by Sal
  172. science

    what will happen if you increase the surface area of a solid in a chemical reaction?

    asked by mellly
  173. General anatomy physiology

    what is a cerebral lobe not visiblein an ordinary external inspection

    asked by Maurice
  174. spanish

    what does luces mean

    asked by noor
  175. calculus

    f(x)=ln(x^4+27) find the inflection points?

    asked by NEED Help
  176. math (calculus) PLZZZ help!

    Consider the function below. (Round the answers to two decimal places. If you need to use - or , enter -INFINITY or INFINITY.) f(x) = e^x/1+e^x find the horizontal and vertical assymptotes? find the interval whr f is increasing? Find the inflection point.

    asked by Anonymous
  177. Math

    Using Cramer's rule, how do you solve? 2x-y=4 3x+y-z=10 y+z=3

    asked by Paula
  178. algebra

    6/7S - 3/4 = 4/5 - 1/7S + 1/6

    asked by zach
  179. college

    What are the three most important points you think a group of people must keep in mind when working collaboratively on a writing project? Why? Support your response with references to readings and personal experiences.

    asked by KC
  180. English

    ship is to trip as shout is to ?__________

    asked by Sky
  181. Chemistry

    In thermodynamics, the standard pressure is 100 kPa. What is this value in units of atmospheres. I got 9.86x10^-7 atm but the book said .9869 atm. who's right?

    asked by Ana
  182. 5th grade

    partial quotients to divide 9 306

    asked by juan
  183. Biology - Hormones

    Name 3 steroid hormones involved in controlling the reproductive function of both non pregnant women and men ty

    asked by jess
  184. 6th grade

    If a ladder is on a house and the top is touching the house 8 feet above the ground, the bottom is touching the ground 6 feet away from the house, if you move the ladder in 1 foot how high will the ladder be touching the house.

    asked by sim
  185. English

    True or False A helping verb is the verb that helps the main verb make its statement. True???

    asked by Keen
  186. algebra

    If LOGx (A)=0.7 and LOGx (B) =0.5 how do I solve LOGx (B/A)

    asked by Irma
  187. English

    Ture or False An adjective is a word that modifies or describes a noun or pronoun. True???

    asked by Keen
  188. English

    A moral defect in a work of art is always also an artistic defect. What does this mean? Therefore, any defects can easily give away clues. I'm confused with this quote.

    asked by Rachel
  189. Chemistry

    Are 5s and 5p considered to be degenerate orbitals? I know degenerate orbitals mean that they have the same energy but different spatial arrangement.

    asked by echem
  190. bus math 12

    Challenge Problem: Bob is closing a real estate transaction on a farm in Yocona, Mississippi, for $385,900. His mortgage holder requires a 25% down payment and he also must pay $60.00 to record the deed, $100 in attormey's fees for document preparation,

    asked by Heather
  191. business

    describes and details how globalization, outsourcing, off-shoring and offshore outsourcing has influenced/impacted contemporary culture. Discuss some historical events that may give the modern business person clues to solving the challenge of

    asked by Jeniffer
  192. Health

    Can someone provide an example of patient charges with corresponding billing charges?

    asked by Onlin Bus
  193. Math

    Use the given information to solve the triangle. If two solutions exists, find both. A=110 degrees a=125 b=100 a is greater than b so I think that there is only one triangle. I am not sure where to go from here.

    asked by Abbey
  194. math

    could you please help me find the slope of 2y = 3. is it 0?

    asked by bindiya farswani
  195. computers

    Explain what the Easter eggs in microsoft are? They are like hidden messages right? Why do they put them in there? Can they still put them in there? Why would they want to do put hidden messagesin their programs. Where can I find out more inmformation?

    asked by Lauren
  196. Technology

    25. Explain in some detail two preventive maintenance measures that are used to keep constructed structures in good working order. The goal of maintenance is to keep products in good condition and good working order. For example, clothing and dishes are

    asked by y912f
  197. math

    According to data from the U.S. Census Bureau, the population P of Cleveland, Ohio (in thousands) in year x can be approximated by the equation P = .08x^2 - 13.08x + 927 , where x = 0 corresponds to the year 1950. In what year (in the past) was the

    asked by emfn
  198. 9th grade

    is electric current shared in a series circuit?

    asked by science
  199. algebra

    a quanity increases by 6.50% every 3 months. by what percent does it increase.. one month?? one year??

    asked by cc
  200. math

    find the volume of the solid whose base is bounded by y=e^(-x), y=3cos(x), and x=0 and whose cross sections cut by planes perpendicular to the x-axis are squares the answer is 3.992 units cubed but can someone explain to me how to get this answer using

    asked by jenna
  201. health

    Help!! I am doing an assignment with 3 scenarios and I have got the first 2 but having trouble with the last. I have read through my chapter and searched webmd and other sites and still can't figure it out. Richard has noted over the past several weeks

    asked by Jane
  202. accounting

    JTD Corporation issued $800,000 of 20-year, 12% bonds on January 1, 2006, when the market rate of interest was 10%. Interest is payable annually on December 31. Use the present values tables shown via the textbook link above. a. Calculate the price of the

    asked by John
  203. 4th grade

    What is the perimeter of a dog huse in the shape of a regular pentagon if the perimeter is 35 feet,what is the length of each side of the play area?

    asked by delacia williams
  204. college algebra

    Am not sure how to plug in e^e on calculator

    asked by irma
  205. Read

    For the sentence "For this reason, the groups of small, decrepit houses were given his name", could another word for decrepit be run-down or old?

    asked by ******
  206. Chemistry

    If 27.5 mL of 5.7 multiplied by 10-2 M HNO3 is added to 20.0 mL of 2.2 multiplied by 10-2 M HNO3, what is the pH of the solution?

    asked by Jenny
  207. 3rd grade

    In analogies...What is the answer for this.ring is to sting as brick is to? what?

    asked by karen
  208. English

    Type the complete adjective or adverb phrase in this sentence. The house with the green shutters is quaint. Adjective/adverb phrase:________

    asked by nick
  209. English

    Type the complete adjective or adverb phrase in this sentence. The red coat was sent by my aunt. Adjective/adverb phrase:_________

    asked by nick
  210. math

    how do you sole (9.23/10whith a negitve power of 4 times )(7.85/10 with a negitve poer of sevin)

    asked by shawnace
  211. physics

    ottawa is about 8 hours drive from x. assume that you are moving non-stop with constant speed of 100km/h how much faster would it take for you to travel if you were moving with the speed of light

    asked by he
  212. science

    what does thought/N mean?

    asked by Marky
  213. Digestive System

    Does the bile duct release bile into the small intestine? And what does bile do?

    asked by Lena
  214. English

    I have to present a visual aid on A Streetcar Named Desire. Any ideas? Thanks!

    asked by Holly
  215. Math

    Mark hid a $10 bill inside his favorite book. He forgot the pages where he hid it. If the sum of the pages where the bill is hidden is 177, on what pages will Mark find his money?

    asked by Bianca
  216. Chemistry

    What's the highest occupied molecular orbital of I-? I'm really confused here, I thought you could only find HOMO for the first two rows of the periodic table.

    asked by echem
  217. math

    A cafe sells turkey,roast beef,ham, or cheese sandwiches;milk,water,or juice;and yogurt and fruit. how many different meals are possible for a person who wants a sandwich,drink, and dessert.

    asked by edriona
  218. Calc

    how do i solve ( 3tan²(x - 1) ) / ( tan³(x) - 3tan(x) )

    asked by lizz
  219. math

    What is 1+1?

    asked by gar
  220. math/algebra

    solve by additon method, tell whether the equation is dependent,independent, or consistent. 1. x-y=3 -6x=6y=17 2. 3/7=5/9=27 1/9 = 2/7 =7

    asked by ann
  221. Business

    How did U.S. manufacturers become vulnerable to offshore outsourcing? What are some of the operations management practices that can help bring manufacturing back to the U.S? How can a focus on quality improve manufacturing? How can lean manufacturing and

    asked by james
  222. college

    organic chemistry 121-------------how to do dimensionalysis solving..

    asked by lisa
  223. business math

    If I decide to invest in certificates of deposit at 6% interest, how much will i need to deposit annually to accumulate a million dollars?

    asked by Heather
  224. government

    What role should America�s ideals play in its national security policy? Include historical, current, and hypothetical cases in the analysis.

    asked by Kayson
  225. college

    What role should America�s ideals play in its national security policy? Include historical, current, and hypothetical cases in the analysis.

    asked by Kayson
  226. college American Government

    How should the United States prosecute its war against global terrorism over the next several years? Should the United States become more aggressive in taking preemptive action in accordance with the Bush Doctrine? Or should the United States be more

    asked by Kayson
  227. quantum mechanics

    Write the Hamiltonian operator for 2 electrons in a 1D box of length a. I know that the Hamitonian is a sum of the kinetic and potential energies. I was thinking that for 2 electrons in a 1D box it would be: -2((hbar^2)/2m_e)(d^2/dx^2)) + Coulomb

    asked by Alice
  228. corporate finance

    Another option discussed by Tom, Jessica and Nolan would be to begin a regular dividend payment to shareholders. how would you evaluate this proposal?

    asked by thomas
  229. English

    1. Ma Liang got on it. 2. Ma Liang got it on. 3. Ma Liang got on the boat. 4. Ma Liang got the boat on. (Are they all the same in meaning? Is 'got' a transitive verb or an intransitive verb?)

    asked by rfvv
  230. English

    1. The emperor could not get back to the palace. 2. The emperor could not go back to the palace. 3. The emperor could not turn back to the palace. 4. The emperor could not return to the palace. (Are they all grammatical and the same?)

    asked by rfvv
  231. English

    The case of a pronoun is determined by how it is used in a sentence. A)true B)false i think it is (b)

    asked by English 202
  232. ENGLISH

    Hello! Need someone whose mother tongue is English to explain to me what " a gentle genius" means. I am teaching English as a foreign language and this expression is one of the titles from the book. I can't find the definition online. I just came across a

    asked by refy
  233. English

    1. I am in a video media yp club. We learn about media and make videos. 2. I am in an information communication club. We learn about computer programs and make files about them. 3. I am in a Samulnori club. We learn about Samulnori and play percussion

    asked by rfvv
  234. world literature

    In book one of the Iliad what are examples that show that Achilleus is an epic hero?

    asked by chelsea
  235. English

    Type the correct pronoun in the box. Each of the students must give ___?___ presentation next Tuesday

    asked by nick
  236. calculus

    f(x)=ln(x^4+27) find the inflection points?

    asked by bella
  237. isu-math11-HELP DUE TOMM PLZ

    okay ia m working on a isu and i am trying to figure out the sin regression of points and i am getting a singular matrix error? any idea guys:? i am have been trying for the past 3 days and nothing its due tomm plz help

    asked by just wondering
  238. physics

    Marshall applies a constant force of 20N to a box and causes it to move at a constant speed of 4m/s. Show that the work he does in moving the box in 6s is 480J.

    asked by sherri
  239. health

    In terms of decsion making sequences, how would you explain and describe : A. The 25-year-old, healthy worker who sees that sam physician for minor medial needs?

    asked by vince
  240. English

    1. I am in the mountain climbing club. We learn how to climb a mountain and take exercise. 2. I am in a table tennis club. We learn how to play table tennis and play table tennis together. 3. I am in a life sports club. We learn how to live a healthy life

    asked by rfvv
  241. English

    1. I am in a samulnori club. We learn about samulnori and play percussion instruments such as drums and gongs. 2. I am in a samulnori club. We learn about samulnori and play musical instruments like drums and gongs. (Are both passages grammatical?

    asked by rfvv
  242. English

    You'll ain't going to like the food she done prepared. Which sentence is correct: a) You are not going to like the food she has prepared. b) You'll are not going to like the food she done prepared. c) You'll ain't going to like the food she has prepared.

    asked by Keen
  243. Organic chem

    Suggest a reason why the trans form of benzalacetophenone if formed in prefernce of the cis form. What does the cis form of this compound look like?

    asked by Alice
  244. English

    A moral defect in a work of art is always also an artistic defect What does this quote mean? Therefore, any defects of art can easily give away clues. I'm confused with this quote.

    asked by Rachel
  245. Mathematics

    I have a question about onto and one-to-one.? Determine(with an explanation) whether this function is one-to-one and whether it is onto. f:R-->RxR, where f(x)=(x^2, 2x+1). I honestly know this is probably very simple but I have not idea where to start. I'm

    asked by Anonymous
  246. English

    1. I learn how to play drums. 2. I learn how to play the drums. 3. I learn how to play the drum. 4. I learn how to play the gong. 5. I learn how to play the piano. (Which one is correct? I think #5 is definitely right. Right?)

    asked by rfvv
  247. Math

    Find the areaof the triangle having the indicated sides and angle. B = 72 degrees 30' a = 105 c = 64

    asked by Abbey
  248. Biology

    What are some treat ments for Miller Syndrome? If you found a website that would be great. I already know of NINDS and FACES websites. thanks:)

    asked by Rebekah
  249. Calc II

    What is the volume of the solid inside the cylinder x^2 + y^2=4 below the plane y=z, and above the xy-plane ?

    asked by Moaid
  250. 7th grade English

    what is a 7 letter adverb for pleasantly that starts with A and ends with LY

    asked by Cody Garner
  251. math

    A group of 9 workers make up a business team. One of the 9 is the manager, another member is the engineer. The remaining 7 are analysts. If the entire team is standing in line at the cafeteria on lunch, and the manager is standing 1st in line, and the

    asked by John
  252. college algebra

    Solve: 2^x-3= 32^x+1

    asked by irma
  253. Bus math case study 12.1

    Shantel and Kwamie are planning to buy their first home. Although they are excited about the prospect of being homeowners, they are also a little frightened. A mortgage paymetn for the next 30 years sounds like a huge commitment. They visited a few new

    asked by Heather
  254. chemistry

    What is the equilibrium concentration of ammonium ion in a 0.77 M solution of ammonia (NH3, Kb = 1.8 ´ 10–5) at 25oC?

    asked by Anonymous
  255. science

    the cause of acidosis . the symptoms of acidosis and alkalosis

    asked by tiffany
  256. philosophy

    I need an explanation for "A moral defect in a work of art is always also an artistic defect" and do you agree with that?IF yes or no,please illustrate why..!!

    asked by Fayrouz
  257. Math 132

    There are 7 girls and 6 boys in a class. Suppose five children are randomly chosen to decorate the game room. Given that at least one boy is chosen, what is the probability that exactly two boys are chosen?

    asked by Jess
  258. English

    Type the correct personal pronoun in place of the noun or nouns in parentheses. I'm not sure it's a good idea to give the candy to (the children) ____? .

    asked by nick
  259. chemistry (please check fornula)

    Sorry about that. So would this be right? Change 1.00 kg to 1000 grams. q=(.449)(1000)(1490)= 669010?

    asked by Danielle
  260. physics

    pls what is the formula for calculating period given gravity, mass and length of the material

    asked by fe
  261. anatomy

    Regarding the development and function of breasts progesterone is involved in developement of the excertory portion of the mammary gland. true or false

    asked by jan
  262. Biology

    I know that miller syndrome is autosomal recessive so would i use a karyotype or pedegree to represent that because I have to: Include a pedegree of at least 3 generations to demonstrate the inheritance pattern. Be sure to label and explain the chart

    asked by Rebekah
  263. math

    how do you find the perimeter of a triangle like this but with an 8 on one half of the middle (cut in half) and the bottom being 5m . . . . . .......

    asked by Anonymous
  264. English

    Pronouns used as subjects or subject complements are in the nominative case A)True B)False i put false

    asked by george
  265. Chemistry B

    Determine the pressure inside a televison picture tube with a volume of 3.5L that contains 2.00 x 10-5g of nitrogen gas at 22.0C?

    asked by Christy
  266. math

    i need help with these 2 math ? 3/4-3/8 and 1/2-2/3 thank u

    asked by priscilla Perez
  267. imagine editing

    it 235 week 5 DQ1

    asked by Anonymous
  268. Nutrition

    Are vegetables comprised primarily of carbs, proteins or fat? I'm talking about the digestive system and I want to know what enzyme breaks down vegetables. Pepsin breaks down proteins which is like meat. Gastric lipase breaks down fats which is like cheese

    asked by Lena
  269. science

    the treatment being offered for the diseases

    asked by tiffany
  270. science

    the trend if any within the united states and comparison with other countries

    asked by tiffany
  271. English

    A collective noun is plural when the group acts as a unit (i.e., "The team lost their fourth game in a row."). A)true B)false i put false

    asked by george
  272. Statistics

    If two dice are rolled, what is the probability that the sum of the numbers is at least 8?

    asked by Debbie
  273. math

    Prove this identity (cos è - 1) / (cos^2 è) = sec è - sec^2 è I have a question when you simplify the secant in terms of cosine. Would you cross multiply but then again there's the subtraction sign there instead of a multiplication sign? then would you

    asked by Rachel
  274. math

    A developer plans to build houses around lake okeebele. Most of his customers want to buy about 100 feet of lakefront. How many lots can the developer build around the lake? scale 100 feet=10,000 square feet

    asked by Brian