Questions Asked on
March 13, 2010

  1. Chemistry

    A solution is prepared by mixing 0.12 L of 0.12 M sodium chloride with 0.22L of a 0.19M MgCl2 solution.What volume of a 0.22 M silver nitrate solution is required to precipitate all the Cl- ion in the solution as AgCl ?

    asked by Abril
  2. English

    Subject cannot automatically limit which of these? intended audience intended purpose whether a message is timely whether a message is topical whether a message is effective

    asked by Betty
  3. geometry

    find the lateral area and the total surface area of the right prism if the base of the prism is a right triangle whole legs meausure 5in and 12 in . and the altitude of the prism measure 8 in.

    asked by Nico
  4. Physics

    The maximum lift force on a bat is proportional to the square of its flying speed v. For the hoary bat (Lasiurus cinereus), the magnitude of the lift force is given by FL (0.020 N·s2/m2)v2 The bat can fly in a horizontal circle by "banking" its wings at

    asked by Ana
  5. Chemistry

    State whether each of the following aqueous solutions would be acidic, basic, or neutral. Include appropriate net-ionic equations to show why a given solution is acidic or basic. a) NaNO3 b)KC6H5CO2 c)50:50 mixture of C6H5CO2H+KC6H5CO2 d)(CH3NH3)Cl e)50:50

    asked by Julie
  6. Physics-11th grade

    Two students on roller skates stand face-to-face, then push each other away. One student has a mass of 94 kg, the other 65 kg. Find the ratio of the velocities just after the hands lose contact.

    asked by Luricela
  7. Physics

    Air isn't a perfect electric insulator, but it has a very high resistivity. Dry air has a resistivity of approximately 3 x 10^13 Ù x m. A capacitor has square plates 10 cm on a side separated by 1.2 mm of dry air. If the capacitor is charged to 250 V,

    asked by JOTHEY
  8. Physics

    Calculate the power output of a 1.0 g fly as it walks straight up a window pane at 2.6 cm/s. I have no idea how to figure out this answer. I've tried using P = Fv but that hasn't worked.

    asked by Robert C
  9. Chemistry

    Calculate the free energy (ΔG˚) of reaction (kJ) for the equation as written at 298 K (Dependence of temperature on enthalpy can be disregard). If the answer is negative, enter the sign and then the magnitude. Express your answer to three significant

    asked by Anonymous
  10. Physics

    A synchronous satellite, which always remains above the same point on a planet's equator, is put in orbit around Neptune so that scientists can study a surface feature. Neptune rotates once every 16.1 h. Use the data of Table 13.2 to find the altitude of

    asked by Ana
  11. English

    How do I start out writng a paragraph on a subject, Food Safety? * Subject: food safety * Occasion: aftermath of an outbreak of sickness at fast food restaurants due to tainted meat * Audience: FDA (agency that manages food safety) * Purpose: Persuade

    asked by Betty
  12. math

    in a group of 100 people, 40 own a cat, 25 own a dog and 15 own a cat and a dog. Find the probability that a person chosen at random a) owns a dog or a cat b) owns a dog or a cat, but not both c)owns a dog, given that he owns a cat d) does not own a cat,

    asked by terry
  13. physics

    A weightlifter holding a 500 kg barbell waist high carries the barbell at a constant height and a constant speed to a rack 2 m away, and places the barbell on the rack at the same height at which he was carrying it. How much work does the weightlifter do

    asked by kalisha
  14. geometry

    the base of a right prism is a rhombus whose diagonals are 6 in and 8 in. The altitude of the prism measures 10 in. Find the lateral area and the total area of the prism.

    asked by Nico
  15. Chemistry

    I am confused about where I am going wrong here... Suppose that 1.331 g of impure barium hydroxide is dissolved in enough water to produce 250. mL of solution and that 35.0 mL of this solution is titrated to the stoichiometric point with 17.6 mL of 0.0935

    asked by Val
  16. Physics

    A 64 kg bicyclist rides his 7.7 kg bicycle with a speed of 13.5 m/s. How much work must be done by the brakes to bring the bike and rider to a stop? How far does the bicycle travel if it takes 4.5 s to come to rest? What is the magnitude of the braking

    asked by Physicster
  17. college chemistry - answer check ASAP!

    The corrosion of iron can be thought of as an electrochemical cell reaction. Calculate the voltage difference between two points of corroding iron differing only in their partial pressures of oxygen: 0.20 atm of oxygen at one point and 0.0010 atm of oxygen

    asked by anne
  18. Physics

    A satellite of mass 220 kg is launched from a site on Earth's equator into an orbit at 200 km above the surface of Earth. (a) Assuming a circular orbit, what is the orbital period of this satellite? 5310 s (b) What is the satellite's speed in its orbit?

    asked by Ana
  19. english

    Hello! I had to read a novel and do a work about it I told what I read Can you above all correct me the tenses? The narrator, an old banker, was remembering how, fifteen years before he had given a party. There had been many clever men, they had talked of

    asked by MARIE
  20. Chemistry

    Design an electrochemical cell using Pb(s) and Mn(s) and their solutions to answer the following questions. I just want to see if my answers are correct. I drew the cell already. Thanks 1. Give the line notation for this electrochemical cell. Mn(s) ∣

    asked by Amanda
  21. physics

    A space station is shaped like a ring and rotates to simulate gravity. If the radius of the space station is 150 m, at what frequency must it rotate so that it simulates Earth's gravity? [Hint: The apparent weight of the astronauts must be the same as

    asked by jade
  22. statistics

    A statistics practitioner would like to estimate a population mean to within 50 units with 99% confidence given that the population standard deviation is 250. a) What sample size should be used. b) Repeat part (a) with a standard deviation of 50. c) Repeat

    asked by Tom
  23. Organic Chemistry

    Draw the structure of [Z]-2-bromo-3-isopropyl-2-heptene

    asked by Sarah Smith
  24. Physics

    Initially sliding with a speed of 2.1 m/s, a 2.1 kg block collides with a spring and compresses it 0.35 m before coming to rest. What is the force constant of the spring?

    asked by Helen Batt
  25. Statistics

    The high temperature X (in degrees Fahrenheit) on January days in Columbus, Ohio varies according to the Normal distribution with mean 21 and standard deviation 10. the value of P(X

    asked by Anonymous
  26. Chemistry

    A 60.0ml 0.513M glucose solution is mixed with 120.0ml of 2.33 M glucose solution. What is the concentration of the final solution. assume volumes are additive.

    asked by Adam
  27. Physics

    Two current carrying wires cross at right angles (like a + sign). Wire 1 has current directed horizontally to the left. Wire 2 has current directed vertically up. If the wires are not restrained, what statement best describes the motion of the wires? A)

    asked by Jane
  28. Physics

    Early one October you go to a pumpkin patch to select your Halloween pumpkin. You lift the 2.8 kg pumpkin to a height of 1.27 m, then carry it 51.4 m (on level ground) to the check-out stand. How much work do you do on the pumpkin as you carry it from the

    asked by Physics Nerd
  29. physics

    A roller coaster has a vertical loop with radius 17.9 m. With what minimum speed should the roller coaster car be moving at the top of the loop so that the passengers do not lose contact with the seats? (how do i go about in solving this)

    asked by jade
  30. Statistics

    The high temperature X (in degrees Fahrenheit) on January days in Columbus, Ohio varies according to the Normal distribution with mean 21 and standard deviation 10. the value of P(X

    asked by Anonymous
  31. Pre-calculus

    Sorry i wrote the last question wrong, it was suppose to be written as: information is given about the polynomial f(x) whose coefficients are real numbers. find the remaining zeros of f: degree 4; zeros: i, 3+i

    asked by hawra
  32. chemistry

    i read in my chem book, it says that SiH4 is molecular compound but SiO2 is covalent network, but why not SiH4 since it has Si which can form network covalent as well?

    asked by bme1
  33. value of common stock

    • Emerson Electric common stock that is selling for $80 with a par value of $5. This stock recently paid a $2.10 dividend, and the firm’s earnings per share have increased from $2.40 to $4.48 in the past 5 years. An equivalent amount of growth in the

    asked by ananoumous
  34. Intro Chemistry

    If a sample of BaSO3 is found to contain 1.73 · 1018 SO32- ions how many moles of Ba2+ ions are present? Express your answer in scientific notation. The following information is given: Molar Mass (g/mol) BaSO3 217.39 Ba2+ ion 137.33 SO32- ion 80.063

    asked by echem
  35. Chemistry

    Copper(I) Iodide is synthesised by the equation: 2CuSO4.5H2O + 2KI + 2Na2S2O3.5H2O --> 2CuI + K2SO4 + Na2SO4 + Na2S4O6 + 10H2O Would it make a difference if anhydrous CuSO4 and Na2S2O3 are used instead? Why hydrous CuSO4 and Na2S2O3 are used instead?

    asked by Alan
  36. precalc

    How do i verify: cotx = (sin2x)/(1-cos2x)

    asked by jill
  37. biology

    How does stomata's position aid both their function and the functioning of the plant?

    asked by Anonymous
  38. economics

    Suppose we establish a $10,000 fine for water pollution. Would some companies still find that polluting was economical?

    asked by olol
  39. math

    The mass m(t) remaining after t days from a 70 g sample of thorium-234 is given by the equation shown below. m(t) = 70e-0.0274t Find the half-life of thorium-234. (Round your answer to the nearest tenth.)

    asked by Anonymous
  40. Phychology of Human Sexuality

    Write a 700 to 1,050-word paper Format your paper according to APA guidelines. -The following points should be covered in your paper: -Trace the movements of the sperm and the egg from their development to fertilization. -Describe the function of each of

    asked by Lisa
  41. chem

    is 2-methyl-2-pentene capable of forming cis/trans isomers

    asked by rashid
  42. French

    I have to write the sentence "You (plural) need to make up your own mind" in french using "il faut que" and "prendre tes propres decisions." Would the result be "Il faut que vous prenniez tes propres decisions"?

    asked by Leah
  43. Chemistry

    What is the chemical equation for: CuI + NH4OH ---> ??? This equation should oxidise Cu+ to Cu2+.

    asked by Alan
  44. physics

    Gold ions (Au+) are accelerate to high speeds using electric fields. These ions are then passed through a region where uniform electric E and magnetic B fields are present. If the ions are traveling to the right, which configuration of E and B will serve

    asked by lauren
  45. Physics

    A 80.00 kg object is hanging from two ropes. One rope (F1) is pulling due West. The second rope (F2) is pulling 80.00 degrees up of East. Calculate the force in the first rope (F1) in Newtons. How would I do this?

    asked by Sarah
  46. Physics

    A 80.00 kg object is hanging from two ropes. One rope (F1) is pulling due West. The second rope (F2) is pulling 80.00 degrees up of East. Calculate the force in the first rope (F1) in Newtons. How would I do this?

    asked by Sarah
  47. penn foster

    what should you do if you find a bone or foreign matter in your food after you've already put it in you mouth?

    asked by mona
  48. math

    0.3x-0.2y=4 0.5x+0.3y=-7/17 Can anyone Please help me solve using the elimination system.....

    asked by Holly
  49. calculus

    How do you solve the initial value problem? (dy/dx)-2y+4=0, y(1)=4

    asked by Bree
  50. math

    0.05x+0.25y=11 0.15x+0.05y=12 solve using the elimination method

    asked by Kristen
  51. chemistry

    2H2 + O2 yield 2H2O , so if i switch it around, 2H2O yield 2H2 + O2. Would it change which one is breaking bond, which one is making bond. So technically is the left side always breaking bond, right side is forming bond

    asked by bme1
  52. Economics

    Pls help me to sole micro problem.Production function is Y=K^0.5L^0.5 and w=$1 (wage) and r=$2 (rent) P=$5 I need to find the long term optimum amount for K and L. Also long term optimun output and a cost function. Thank you.

    asked by Anna
  53. math

    How do you solve using the elimination method 0.3x-0.2y=4 0.5x+0.3y=-7/17

    asked by Kristen
  54. English

    Please can you check that I have put colons, semi-colons and hyphens in the right places. In 1) I need to put a colon and a semi colon in the paragraph. 1)There were a hundred and forty-two staircases at Hogwarts: wide, sweeping ones narrow, rickety ones

    asked by Therry
  55. Statistics

    Calculate the following: a) Determine the sample size necessary to estimate a population mean to within 1 with a 90% confidence given that the population standard deviation is 10. b) Suppose that the sample was calculated at 150. Estimate the population

    asked by Tom
  56. physics

    The density of nitrogen at STP is 1.25 kgm^-3. Find the r.m.s velocity of nitrogen molecule at 20 degree centigrade.

    asked by Edwin
  57. Communication Studies

    Is it ever appropriate for a man to use women's speech? Is it ever appropriate for a woman to use men's speech? Give an example.

    asked by Rachale
  58. 7th Grade Math

    Find the area of the circle described. Use pi= 22/7. Diameter= 1.4cm Please help!

    asked by Elizabeth
  59. Algebra

    F1 sin 30 + F2 sin 80 = M g F1 cos 30 - F2 cos 80 = 0 How would I solve for F1 and F2 here?

    asked by Sarah
  60. author

    • Choose two topics from the Opposing Viewpoints Resource Center that interest you and locate a set of materials from the database for each topic. If you choose school violence as one of your topics, for example, you might find a magazine article that

    asked by Anonymous
  61. Physics

    The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not depend on ... a)The radius of the circle b)The mass of the particle c) The charge of the particle d) The magnitude of the magnetic

    asked by Johnny
  62. math

    Can someone help me solve the following....using elimination methods 1) 5x+7y=43 -4x+y=25 2)9x-9y=36 7y-3x=-14

    asked by Holly
  63. math

    in 1995, the life expectancy of males was in a certain country was 70.7 years. In 2001, it was 74.3 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995.

    asked by Monti
  64. potential rational zeros

    list the potential rational zeros of the polynomial function, do not find the zeros. f(x)=x^5-5x^2+4x+3

    asked by Paris
  65. math

    0.3x-0.2y=4 0.5x+0.3y=-7/17 Can anyone Please help me solve using the elimination system..... Someone tried to explain it but I still do not get it at all

    asked by Holly
  66. Using the factor Theorem

    use the factor theorem to determine whether x-c is a factor of f(x) f(x)=x^3+8x^2-18x+20; x-10 I have a doubt in my answer, i determined that x-10 is not a factor... am i right? please verify as my exam is tomorrow night at college. thank you for your time

    asked by Rose
  67. Physical Science

    The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not depend on ... a)The radius of the circle b)The mass of the particle c)The charge of the particle d)The magnitude of the magnetic

    asked by Stephanie
  68. Math

    Can someone help me solve the following problems using the substituion method? I need to find the ordered pairs and I do not get it.... Here they are 1) 6m+n=47 m-4n=12 2) 6x+4y=-10 -7x+y=57 3) 5x+7y=43 -4x+y=25

    asked by Kristin
  69. college

    Explain why, in terms of job performance and efficiency, knowing medical billing terms is critical for working in the health care field. Respond in at least 150 words and provide specific examples.

    asked by Ali
  70. computers

    I need a part order module for parallel array named OrderNums

    asked by mary
  71. math

    solve using the elimination method 0.05x+0.25y=11 0.15x+0.05y=12

    asked by Kristen
  72. HCS 320

    paper comparing and contrasting your various organizations methodologies for disseminating health information with internal and external organizations. Identify any improvements that could be made and why.

    asked by Anonymous
  73. Statistics

    Determine the sample size necessary to estimate a population proportion to within .03 with 90% confidence assuming you have no knowledge of the approximate value of the sample proportion.

    asked by Tom
  74. Math209

    Selling shirts. If a vendor charges p dollars each forrugby shirts, then he expects to sell 2000 - 100p shirts ata tournament. a) Find a polynomial R(p) that represents the total revenuewhen the shirts are p dollars each. b) Find R(5), R(10), and R(20). c)

    asked by Joseph
  75. Physics

    A 80.00 kg object is hanging from two ropes. One rope (F1) is pulling due West. The second rope (F2) is pulling 80.00 degrees up of East. Calculate the force in the first rope (F1) in Newtons. How would I do this?

    asked by Sarah
  76. pre-calculus

    one solution of x^3-5x^2+5x-1=0 is 1. find the other two solutions.

    asked by hawra
  77. Physics

    A water pipe is made of iron with an outside diameter of 2.5 cm and inside diameter of 2.0 cm. The pipe is used to ground an electric appliance. If a current of 20 A flows from the appliance into the water pipe, what fraction of this current will flow in

    asked by Selma
  78. chemistry

    Why is HF has lower boiling point than CsI, even though HF has hydrogen bond. Does HF have higher boiling point than O2

    asked by eng
  79. Chemistry

    How should I write the balanced chemical equation to represent the oxidation of Cu+ ion by air? [Cu(NH3)3]^+1 + 2H2O + ??? --> [Cu(NH3)3(H2O)2]^+2

    asked by Alan
  80. stocks

    • Emerson Electric common stock that is selling for $80 with a par value of $5. This stock recently paid a $2.10 dividend, and the firm’s earnings per share have increased from $2.40 to $4.48 in the past 5 years. An equivalent amount of growth in the

    asked by ananoumous
  81. math

    can someone please help me with this elimination methods problem? 0.05x+0.25y=11 0.15x+0.05y=12 solve using the elimination method and give the ordered pair...

    asked by Kristin
  82. math

    1) 6m+n=47 m-4n=12 can someone help me solve using substitution method?

    asked by Kristin
  83. math

    1) x+8y=33 -x+4y=3 I need help solving this one using the elimination method!

    asked by Kristin
  84. Physics

    GSM networks use microwaves of 20 cm in wavelength. What is the energy carried by one trillion (10^12) photons of this wavelength is? I got 10^-13 J, but this is apparently wrong. Please help!

    asked by Johnny
  85. dynamics of catering

    john is a caterer who encourages his staff to make suggestion on work procedures and frequently incorporates their thoughts into his management program. what kind of management style does john exhibit?

    asked by mona
  86. Physics

    A massless spring of constant k = 88.9 N/m is fixed on the left side of a level track. A block of mass m = 0.50 kg is pressed against the spring and compresses it a distance of d. The block (initially at rest) is then released and travels toward a circular

    asked by Ana
  87. trig

    how do i find the corresponding function formula and check the symmetry algebraically

    asked by Paris
  88. math

    Can someone help me solve the following....using elimination methods 1) 5x+7y=43 -4x+y=25 2)9x-9y=36 7y-3x=-14 I think the answers are would the answer to number 1 be (-4.26,1.52)? would the answer to number 2 be (-0.5,-6.5)? Can someone please verify or

    asked by Holly
  89. Math

    Use the fact that (125)^1/3 = 5 and the tangent line approximation to estimate (123)^1/3

    asked by Chris
  90. math

    Mr. Rosart selects two students from his class to present their book reports. He places the names of each student in a box and randomly picks one at a time. The class has 14 boys and 12 girls. What is the probability that the second name Mr. Rosart picks

    asked by ana
  91. math

    How do you solve using the elimination method 0.3x-0.2y=4 0.5x+0.3y=-7/17

    asked by Kristen
  92. math

    Elimination Method....I am not understanding this method either and need some help here is what I am working on: 1) x+8y=33 -x+4y=3 2) 5x+5y=-7 7x-2y=13 3) 0.3x-0.2y=4 0.5x+0.3y=-7/17 Can someone please help me with these!

    asked by Kristin
  93. alg/geo

    m= 5/6, (8,-9) find the equation of the line having the given slope and containing the given point

    asked by vyu
  94. Chemistry

    I have some enthalpies of formation for a reactant and transition state but calculated using different computational methods. I want to find the ratio of the forward rate constants determined using both methods but I'm not really sure how. I thought I

    asked by Alice
  95. pre-calculus

    the function has a real zero in the given interval. approximate this solution correct to two decimal places: f(x)=x^4-x^3-7x^2+5x+10; (2,3)

    asked by hawra
  96. Calculus

    how do you find the limit at infinity of: lim(x->infinity) (x+2)/sqrt(64 x^2+1) Do you first change the square root on denominator to (64x^2+1)^-1/2 and then divide everything by zero. Please help me with this, I'm confused.

    asked by Sarah
  97. adult education

    What materials/resources do I need to do a training seminar on sexual harassment and unlawful discrimination in the work place? This is for an exam I am taking through Penn Foster... This is a written exam and does not have any "questions". I only need the

    asked by Suzanne
  98. algebra

    the length of a rectangle is fixed at 12 cm. What widths will make the perimeter greater than 88 cm?

    asked by Monti
  99. VBScript

    Option Explicit Dim Answer Dim aScores() Dim intNumScores ' Initialize Answer so loop will enter and execute Answer = vbOK Do While Answer = vbOK intNumScores = CInt(InputBox("How many scores will you be entering?", "Enter Number Of Scores")) ReDim

    asked by Pete
  100. algerbra

    f(X)=(x+1)2 that squared

    asked by tyler
  101. 3rd grade

    experiment on moment of force

    asked by Anonymous
  102. Spelling

    What is a 5 letter word for "To give way" with ie in the word?

    asked by Logan
  103. Physics

    To compress spring 1 by 0.23 m takes 188 J of work. Stretching spring 2 by 0.27 m requires 211 J of work. Find the force constants. K1 = K2 = I have derived the formula for k as k = W/(2x^2) but when i plug in the values the answer isn't correct.

    asked by Bobby C
  104. Chemistry

    How many kilograms of red iron oxide can be obtained from 1.00kg ferrous sulfate heptahydrate?

    asked by Tammy
  105. statistics

    A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? There is no mode. There are two modes. There are three modes.

    asked by angel
  106. Physics

    Gold ions (Au+) are accelerate to high speeds using electric fields. These ions are then passed through a region where uniform electric E and magnetic B fields are present. If the ions are traveling to the right, which configuration of E and B will serve

    asked by Sandra
  107. Math

    Forest rangers use degree measure to identify directions and locate critical spots such as fires. A forest ranger at tower A observes smoke at a bearing of 149 degrees (clockwise from the north) while another forest ranger at tower B observes the same

    asked by Gayle
  108. Communication Language Studies

    What kind of problems might occur in mixed gender interviewing situations or committee meetings?

    asked by Breanna
  109. pre-calculus

    Also with calculator, graph f(x), and determine all the possible maxima/minima coordinates to within two decimal points. f(x)=x^3+2x^2-x-2/x^2+x-6 i did this and got my answers but i doubt they are right, can anyone get the answers if you have a TI-83-84

    asked by Paris
  110. Anatomy

    what are the two hormones that can alter tubular function

    asked by Pamela Martin
  111. Social Studies

    Where could I get information on school segregation?

    asked by Shadow
  112. Chemistry

    What would be the most likely product(s) when you react CuI with NH4OH?

    asked by Alan
  113. Accounting

    Explain the components of cost-volume-profit analysis . What does each of the components mean?

    asked by Wayne
  114. Physics

    An item is shot off the ground at a force of 31N and an angle of 36 degrees. In order to find the vertical force, would I use SIN, COSINE, or TANGENT? would it go 31 * COS/SIN/TAN (36) or 36 * COS/SIN/TAN (31)??

    asked by Sarah
  115. social studies

    What are some products that Canada imports from Egypt?

    asked by shakti
  116. psychology

    Working on a paper entitled: neurological processes. Would like to have some data to help me work on it. Thank you very much.

    asked by Rose
  117. social studies

    What products does Egypt export from Canada?

    asked by shakti
  118. Research Writing

    What examples of rhetorical devices did you hear in the speech by Ronald Reagan? What type of rhetorical devices did he employ

    asked by Danielle Banks
  119. pre-calculus

    information is given about the polynomial f(x) whose coefficients are real numbers. find the real zeros of f: degree 4; zeros: i, 3+i

    asked by hawra
  120. parent

    Complete the following chart with examples of each type of sculpture. Fill in the title of the artwork, the artist, the year made, and the medium. In the last column, determine whether the work is additive, subtractive, or neither. I need an example of how

    asked by Anonymous
  121. Physics

    A 450.00 kg object is hanging from two ropes. One rope (F1) is pulling 30.00 degrees up of West. The second rope (F2) is pulling 80.00 degrees up of East. Calculate the force in the first rope (F1) in Newtons. How would I do this?

    asked by Sarah
  122. math

    -6x + 3 =-7 - 5x

    asked by keshia
  123. Please Help

    A bottle contains 0.5 quarts of grape juice. Keisha will use o.2 of the grape juice to make fruit punch. How much grape juice will keisha use for the fruit pumch? a. 0.3 b. 0.2, c 0.1 or d 0.01 I chose 0.3 but according to the teacher's edition it says the

    asked by MATH PLEASE HELP
  124. Chemistry

    Can [Cu(NH3)2]^+ and/or [Cu(NH3)3]^+ be oxidised by air to become [Cu(NH3)2]^2+ and [Cu(NH3)3]^2+ respectively?

    asked by Alan
  125. history

    nigerian national assembly and its role in decision making

    asked by belema
  126. pre-calculus

    form a polynomial f(x) with real coefficients having the given degree and zeros. degree: 4; zeros: -1, 2, and 1-2i. I got an exam tomorrow, i would appreciate any kind of help, thank you.

    asked by Hawra
  127. Chemistry

    What is the stoichiometric ratio for Cu2+ ions with cuprizone to form the copper-cuprizone complex?

    asked by Alan
  128. math

    a card is picked from a pack containing 52 cards . it is then replaced and a second card is picked. Find the probability that a)both cards are the seven of diamonds, b)the first card is a heart and the second a spade. c)one card is from a black suit and

    asked by terry
  129. math

    average of: 8; 10; 12; 14; 16

    asked by Anonymous
  130. Chemistry

    What is the stoichiometric ratio for Cu2+ ions with cuprizone to form the copper-cuprizone complex?

    asked by Alan
  131. Math

    Dalya received the proceeds from an inheritance on April 5. She wants to set aside enough on April 6 so that she will have $17,000 available on October 2 to purchase a car when the new models are introduced. If the current interest rate on 91- to 180-day

    asked by Thara!
  132. 5th grade

    is a word or phrase - "thus," "therefore" - that shows that a conclusion is up ahead

    asked by suzy
  133. Physics

    If you slam your finger in a car door how can you thank Coulomb's Law for the fact your finger wasn't chopped off?

    asked by J
  134. math

    How do I convert 7/13 to a decimal then to a percent?

    asked by Missy
  135. English

    In the princess bride, how are the characters altered to fit the parody style of the movie.

    asked by Layla
  136. Physics

    If you slam your finger in a car door how can you thank Coulomb's Law for the fact your finger wasn't chopped off?

    asked by J
  137. math

    SOLVE USING SUBSTITUTION METHOD X+2Y =1 8X +6Y + 4

    asked by HELEN
  138. accounting

    At October 31, Nathan Company made an accrued expense adjusting entry of $1,400 for salaries. Prepare the reversing entry on November 1, and indicate the balances in Salaries Payable and Salaries Expense after posting the reversing entry.

    asked by Amy
  139. Statistics

    HO: µ = 70 H1: µ > 70 ó = 20, n = 100, xbar = 80, á = .01 a) calculate the value of the test statistic b) set up the rejection region. c) determine the p-value d) interpret the results

    asked by Tom
  140. Statistics

    Draw the operating characteristic curve for n = 10, 50, and 100 for the following test: Ho: ì = 400 Hi: ì > 400 á = .05, ó = 50

    asked by Tom
  141. Business

    can you help me with this if you can In reviewing the office's profit and loss statement, the office manager notices a discrepancy between the stated revenue and cash deposits. In fact, it appears the office may have incorrectly booked $250,000 in revenue

    asked by Lori
  142. math

    what is the way to know what was Thales statement ?

    asked by hinanit
  143. psy270

    identify the following Rational and guilty I need to know what each means

    asked by trudy
  144. social studies

    Does Canada import products frrom Egypt? If so then what are they?

    asked by shakti
  145. managment ethics

    How do we solve this dilemma? Assuming capitalism is based on a mutual system of trust among consumers and producers, employers and employees, is one justified in breaking a contract even if it's in the pursuit of happiness? If we used Kant's Categorical

    asked by flowerpower
  146. Chemistry

    When diluting a weak acid and a strong acid, why is it that the pH changes more significantly in the strong acid? (consider the equilibrium occurring) With HCl

    asked by Anonymous
  147. Biology

    I was really confused by this question? Considering the energy pyramid, where does the energy go or where is it used as you go from producers to tertiary consumers?

    asked by Sam
  148. math.

    2. Factor these ---(3x^11z^5)^3 b. (3x^5)^ -3 / 2x-5(3y)^4 c.3x^5)^ -3 / 2x ^ -5(3y)^4 (same as b but - 5 is the exponent)

    asked by Alyssa Pacheco
  149. Communication Language Studies

    Most modern style manuals endorse the elimination of sexist language. Would the reduction of sexist language influence the thoughts or attitudes of individuals who comply with these standards? Why or why not?

    asked by Jessica
  150. Math Help Please

    A bottle contains 0.5 quart of grape juice. Keisha will use 0.2 of the grape juice to makie fruit punch. How much grape juice sill Keisha use for the fruit? I chose a.)0.3. My mom says it is b.) 0.2 The teacher's edition says it is c.) 0.1. Can you please

    asked by MATH PLEASE HELP
  151. finance

    growth rate of eps. what is the groth rate of an eps of 2.40 to 4.48 in the past 5 years...

    asked by ananoumous
  152. HISTORY

    WHAT ARE GOOD REULTS OF WW1?

    asked by STEPHANIE
  153. Pre Algebra

    A consultant traveled 9 hrs to a meeting. The return trip took only 8 hrs because the speed was 10 miles per hr faster. What was the consultants speed each way?

    asked by Susie
  154. history

    what is the religon for Potawatomi

    asked by Maylee
  155. math

    a student chosen at random failed a driving test.

    asked by terry
  156. Functions

    use the factor theorem to determine whether x-c is a factor of f(x)=x^3+8x^2-18x+20; x-10.

    asked by Paris
  157. topic

    do you no any thing about puhum ben its a festival in cambodia that's all I know help????

    asked by Aime
  158. math

    How do I convert 7/13 to a decimal then to a percent?

    asked by Missy