1. Science

    from the top of a tower t ball is thrown vertically upward when the ball reaches distance h below t it's speed was double if what it was at height h above t show that greatest height attained by it above t is 5/2h

    asked by Sukhwinder on July 6, 2018
  2. chemistry

    400 cm3 of 0.5mol/dm3 hydrochloric acid was reacted with 5g of magnesium oxide. Calculate the mass of reacted oxide? Show the steps and thq..

    asked by vigor on February 17, 2011
  3. MATH 7th GRADE

    Vicki measured the length of 8 leaves. The lengths were 10 cm, 12 cm, 15 cm, 15 cm, 19 cm, 11 cm, 18 cm, and 15 cm. What is the interquartile range of Vicki's data? answer choices are: a. 1 b. 3 c. 5 d. 6 I chose 5 and it says that 6 is the correct answer.

    asked by MATH HELP PLEASE on May 8, 2011
  4. MATH 6th

    1. Is there a website that can show me how to divide decimals by10-1000? 2. Divide decimals by whole numbers? 3. Patterns with tenths, hundredths and thousandths? PLEASE HELPL ME - THANK YOU IN ADVANCE. JUST SOME SAMLES OF ALL THE ABOVE

    asked by xavier on April 26, 2012
  5. College Algebra

    A rectangular parcel of land is 20 ft longer than it is wide. Each diagonal between opposite corners is 100 ft. What are the dimensions of the parcel? This is an Example in the book but it does not clarify in the text book, Can anybody please show me how

    asked by Lydia on July 13, 2015
  6. 5th grade math

    ted wrote a three-digit number. He divided it by 14, added 12, and multiplited by 20. His final anser was 600. what number did ted write? Plese show me how t get the answer. thanks.

    asked by Julie on December 14, 2010
  7. Precalculus

    * I know how to graph this but I don't know how to punch the equation in correctly. I am not sure about the window either.. How can I type this equation in the graphing calculator? y=pi(25-x)^2 • 2x Note, the 2x is NOT multiplied by 2.. Show how I can

    asked by Anonymous on May 29, 2014
  8. chemistry

    Okay let me write it this way. I mixed 30 mL of 0.1 M Acetic Acid and 15 mL of 0.1 M Sodium Hydroxide and measured the pH. Then I added 5 mL of 0.1 M NaOH to this buffer and measured the pH. It's asking me: Show the calculations for the pH of the buffer

    asked by fenerbahce on July 14, 2012
  9. ELA

    What is the function of a preposition in a sentence? 1)to relate a noun or pronoun to another word. 2)to express action 3)to show the subject of the sentence is active with the main verb. 4)to tell more about the subject. I think #1 Thank you.

    asked by Jamie M on March 8, 2018
  10. Chemistry-Conversions

    Can you please show me how to set up these conversions (how to do each of these conversions) Question- The pressure of gas is measured ay 550 mm Hg. Calculate the pressure in: a. Torr b. lb/in2 c. atm d. in Hg Can someone other than DrBOB answer this

    asked by KL on May 3, 2012
  11. Chemistry

    Show how you would calculate the % yield of hydrogen if 40.0 grams of magnesium react with an excess of nitric acid producing 1.70 grams of hydrogen gas. Mg + 2 HNO3 ---> Mg(NO3)2 + H2

    asked by Elizabeth on March 30, 2016
  12. physics As

    How do you calculate the braking distance? driver reaction time=0.6s initial speed of car=30ms-1 speed*2= distance*4 Please show all the steps and the equations you used in words

    asked by jan on November 23, 2017
  13. mathematics need help

    If the ratio of roots of x² + bx + c = 0 is equal to ratio of roots of x² + qx + r = 0, then 1. r²c = qb² 2. br² = qc² 3. b²r = cq² 4. rc² =bq² plz show step

    asked by weyeremi on April 4, 2017
  14. physics

    A particle starts frm a point with a velocity of 6m/s and moves with an acceleration of (-2m/secondsquare). Show that after 6 seconds the particle will beat the starting point ? Plz explain....

    asked by Maihul on July 5, 2012
  15. Chemistry

    What symbol is used to show the standard reduction potential of an oxidation reaction in a half cell? The sub means what follows is a subscript So the 0 is a superscript and the sub is its subscript E^0 sub cell*** E^0 sub red E^0 sub oxid All of the above

    asked by Kristin on June 1, 2016
  16. trigonomentry out of ideal help ah!crying

    compute.. Cos(1degree)+cos(3degree)+cos(5degree)+...+Cos(179degree) plz show working even an hint can,t help me.Have been do maths alday my brain is fried..Ah thanks

    asked by david on April 1, 2016
  17. math

    The tax on an item is $60. Given a tax rate of 8.5%, which of the following is the price of the item, to the nearest dollar, before taxes? a. $408 b. $510 c. $650 d. $706 I think D but not for sure. Can u show me how u set this problem up?

    asked by AMGCSTRNBSN on April 1, 2016
  18. Maths

    An 24hour digital clock is gaining three minutes every hour .If you set it to the correct time at 6 p.m.on Saturday,when will it show the correct time again? Answer must be in full form

    asked by Yonwaba on February 21, 2019
  19. English - ms. sue

    ms. sue i also have to answer one question from story that be the story move from describing two similar friends to ones whose views become much different. it say what writer do to intensify contrast b/w the 2 to show that now each of us b by herself. I

    asked by Mohammad on December 17, 2012
  20. Chemistry 11th Grade

    Nitrogen form five compound with oxygen in which 1.0 g of nitrogen combines with 0.572,1.14,1.73,2.28 and 2.85g of oxygen respectively .show dis figure agree with law of multiple proportion.

    asked by Sachin on June 20, 2017
  21. Physics

    Jada throws a rock horizontally from a bridge 32 m above the water, which hits the water approximately 25 m from a point immediantly below the bridge. Show that Jade's tossing speed was about 10 m/s.

    asked by Anonymous on September 25, 2012
  22. statistics

    Determine the probability that a sample of 49 boxes will have a mean weight below 365grams. past records show that the population mean is 368 grams and the population standard deviation is 7. the probability will be between

    asked by wanda on November 30, 2011
  23. MsSue- re

    im sorry my post appeared twice it didn't show my question when i looked then when i posted it again it was there. Im sorry my computer is a bit slow. thankyou for your help now you have explained the question ive got an idea what i need to do. Thankyou

    asked by Kerrie on March 17, 2009
  24. Math

    I do not understand this at all. Can someone please show all the steps sp I am able to comprehend: Four points are on a line segemnts, as shown. If AB:BC=1:2 and BC:CD=8:5, then AB:BD equals what? Assume CD = 1 Then, BC = 8.5. and AB == 10.2. Therefore,

    asked by Gina on December 3, 2006
  25. Finance

    How do you determine the value of a 1,000 bond with a 7 percent coupon rate maturing in 20 tears for an investor whose required rate of return is 8 percent? Please show formula and result

    asked by Angel on October 30, 2008
  26. physics

    Is it impossible to lose all of the kinetic energy in a collision? Or, does a ball which bounces several times before eventually coming to rest show how kinetic energy can completely disappear?

    asked by Student on November 13, 2009
  27. Physics

    An object with a weight of 150 N hangs from the ceiling as shown in the figure. 1) Find the tension in each string. q1 = 60 degree and q2 = 45 degree Please show it step by step along with the equation to use

    asked by Anonymous on October 3, 2016
  28. Pre-Cal

    given the function y=2sin3x-1, identify the following below. also show its graph for the primary cycle. (identifying parts of a trig. equation) asymptotes= k= c= axis= primary cycle= period=

    asked by Kim on March 6, 2012
  29. Mathematics

    A piece of string can be cut into equal lengths of 20cm, 24cm or 30cm long. find the length of the shortest piece of string for which this is possible. PLEASE SHOW WORKING

    asked by Ashley on September 30, 2009
  30. Keyboarding and Word Processing

    The _________ enables you to see the hard returns on your screen. Choices are: STATUS BAR, SCROLL BAR, SHOW/HIDE BUTTON, or PRINT PREVIEW BUTTON.

    asked by Deanna on May 5, 2010
  31. English

    Which of these is a good guideline to follow when designing a presentation slide show? Use dark backgrounds Avoid large type Avoid fancy fonts Use only one slide

    asked by TK on August 22, 2018
  32. Math help please

    Show that one and only one out of n,n+4,n+8,n+12,n+16 is divisible by 5,where n is any positive integer. A two digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 or by multiplying the differences of the digits

    asked by Abhishek kumar sahi on August 4, 2011
  33. math

    You want to make a graph to show how you spend your time each day. What would be the best graph for this data? A. Circle graph B. Line graph C. Histogram D. Stem_and leaf plot Is the answer A? Thank you

    asked by Anonymous on March 19, 2015
  34. Geography

    17. Why have the people of West Africa started to work at the local level to help their economies? a. They have learned that their governments alone can do little to improve economic conditions b. Foreign countries have stopped all economic aid to West

    asked by y912f on March 19, 2010
  35. SS

    "Immaigrants who arrive in American cites are poor and frightened. they are helped to find jobs and housing. These newcomers should show their gratitude at voting time" Who most likely would have said this? A-political Boss--- B-Factory owner C-labor union

    asked by someone on April 6, 2017
  36. psychology

    As it turns out, children whose mothers took diethylstilbestrol during pregnancy A show serious mental deficts by age five B have higher infertility rates when grown C are more likely to develop lung cancer late in life D are more likely to engaged in

    asked by tzeni on January 7, 2009
  37. Social studies

    “Immigrants who arrive in American cities are poor and frightened. They are helped to find jobs and housing. These newcomers should show their gratitude at voting time.” Who most likely would have said this? Political boss Factory owner Labor union

    asked by Social studies on February 15, 2017
  38. English

    In Catch-22, The Great Loyalty Oath Crusade is one example of The need to show true patriotism in war. The importance of being able to trust companions. The ability of spies to remain hidden despite careful efforts to unmask them. The desire of officers to

    asked by Anonymous on November 16, 2011
  39. chemistry

    The reaction between sodium hydroxide and hydrobromic acid is represented in the equation below: OH- + H+ -> H2O A 62.5 mL sample of 1.86 M NaOH at 22.5 deg Celsius was mixed with 62.5 mL sample of 1.86 M of HBr at 22.5 deg Celsius in a coffee cup

    asked by lola on November 2, 2014
  40. chemistry 116

    A 36.0 g piece of copper at 130.0 C is placed in 50.0 g of water at 20.0 C. What is the temperature (in C) of the water once the system reaches equilibrium? The molar heat capacity of copper is 24.5 J/(mol·K). The specific heat capacity of water is 4.18

    asked by danny on January 27, 2015
  41. Phsyicsssss helppp

    A 9.5-kg watermelon and a 7.2-kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. (a) Find the accelerations of the pumpkin and the watermelon. Specify magnitude and

    asked by Anonymous on February 12, 2012
  42. physic

    a golf ball of mass 0.045 kg is moving in the +x direction with a speed of 9.0 m/s, and a baseball of mass 0.145 kg is moving in the -y direction with a speed of 7.0 m/s. What are the magnitude and direction if the total momentum of the system consisting

    asked by jaymark on September 23, 2012
  43. physics 2 **

    A blacksmith drops a 0.60 kg iron horseshoe into a bucket containing 25 kg of water. (a) If the initial temperature of the horseshoe is 600°C, and the initial temperature of the water is 40°C, what is the equilibrium temperature of the system? Assume no

    asked by kelsey on December 4, 2008
  44. Boolean expression Help asap PLEASE

    A control system is needed to alert an attendant for the following situation. Which of the following is the Boolean equation expressing the electronics you would need? Either the tank is filled and the pump is on, or the tank is empty. (Use A = tank

    asked by Adam on June 19, 2013
  45. physics

    three charges are fixed to an x, y coordinate system. a charge of +18 µC is on the y axis at y= +3.0 degree m. a charge of -12 µC is at the origin. last, a charge of +45 µC is on the x axis at x= +3.0 m. determine the magnitude and direction of the net

    asked by lara on April 27, 2010
  46. PHYSICSSS please helppp ASAP

    A 9.5-kg watermelon and a 7.2-kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. (a) Find the accelerations of the pumpkin and the watermelon. Specify magnitude and

    asked by Anonymous on February 12, 2012
  47. Sociology (Topic;education)

    hi.. am dnt a topic in sociology and the topic is Education.I find this topic quite complicated and difficult, there are so many types of system of education.. what is the Compensatory education,,can 1 also have some examples of this types of education so

    asked by Taskeen on April 17, 2010
  48. Chemistry

    A calorimetric determination of specific heat and enthalpy of solution was performed. How would each of the following procedural changes affect (higher than the correct value, lower than the correct value, or no change) the value of the specific heat of

    asked by Amy on October 15, 2012
  49. Math

    There are 50 small balls in a tub. Some balls are white and some are orange. Without being able to see into the tub, each student in a class of 25 is allowed to pick a ball out of the tub at random. The color of the ball is recorded and the ball is put

    asked by Miles on April 14, 2017
  50. Chemistry

    which solution has the highest boiling point? a. 1 mole of NaNO3 in 500 g of water b. 1mole of NaNO3 in 1000g of water c. 1mole of NaNo3 in 750g of water d. 1mole of NaNo3 in 250 g of water The boiling point of water is elevated by about 0.5 degree for a 1

    asked by Kat on March 26, 2007
  51. Physics

    Two masses are held while suspended on a frictionless pulley.Their masses are 0.250 kg and 0.200 kg. a. Compute for the acceleration of the masses once they are released? b.Find the tension on the string m1 accelerates upward and m2 downward Let a be the

    asked by fluffy on September 10, 2006
  52. Writing Sentences and paragraphs

    Paragraph 1 Background You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must

    asked by Sassy on February 16, 2010
  53. physics

    a submarine fitted with a SONAR system operates at a frequency 50kHz. An enwmy submarine is now moving towards it with a speed of 450km/hr. Find the frequency of the sound received back at the SONAR from the enemy submarine. Velocity of sound in water is

    asked by please Help urgently on May 25, 2016
  54. Chemistry

    for the reaction 4NH3(g) + 5O2(g) 4NO(g) + 6H2O(g) if H = -950kJmol-1, does that mean it's an exothermic reaction? Ooops pressed Post too quickly. Yes it is exothermic. Delta H is negative so heat is lost from the system. If delta H is positive a reaction

    asked by Fiona on April 30, 2007
  55. physics

    A block of mass 2 kg is connected to a freely hanging block of mass 4 kg by a light and inextensible string which passes over pulley at the edge of a table. The 2 kg mass is on the surface of the table assumed to be smooth. Calculate the acceleration of

    asked by Samuel on January 12, 2013
  56. Business management class

    5. The trend toward two-family income has led to A. policies allowing only one family member to work for a company. B. flexible work schedules, pregnancy benefits, and elder-care programs. C. businesses paying lower wages and hiring fewer workers. D. fewer

    asked by April on January 30, 2012
  57. Alegebra

    The mortgage department of the company is selling two model homes that are located on the same block. The square footage, as well as the type of model, determines the cost of these homes. e) The second home has 200 square feet more than the square footage

    asked by Darla on June 26, 2010
  58. science

    The orbital radii of four planets in our solar system are shown in the following table. Orbital Radii Planet Orbital Radii (AU) W 5.2 X 0.72 Y 1.0 Z 19.1 Which planet is likely to experience the highest temperature? W X Y Z I think it is B.x but I am not

    asked by george on May 10, 2018
  59. Physics

    An 87-kg box is attached to a spring with a force constant of 82 N/m. The spring is compressed 11 cm and the system is released. (a)What is the speed of the box when the spring is stretched by 7.0 cm? (b)What is the maximum speed if the box?

    asked by Amy on April 16, 2013
  60. chemistry

    The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the reaction mixture with no change in volume, what will be the new equilibrium concentration of N2O4?      N2O4(g) 2 NO2(g)

    asked by Audrey on November 15, 2010
  61. Chem 2

    The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the reaction mixture with no change in volume, what will be the new equilibrium concentration of N2O4? N2O4(g) 2 NO2(g)

    asked by Beth on March 5, 2012
  62. Aviation Security

    Question 1 of 20 Why is microwave holographic imaging not being used as a security measure in U.S. airports? A. The cost is prohibitive. B. It violates the Fourth Amendment rights of passengers. C. It issues too many false alarms. D. Each passenger must

    asked by KC on July 24, 2016
  63. Chemistry

    Problem Description: You are a workstudy for the chemistry department. Your supervisor has just asked you to prepare 500mL of 3M HCl for tomorrow's undergraduate experiment. In the stockroom explorer, you will find a cabinet called "Stock Solutions". Open

    asked by Urgent! on September 1, 2019
  64. Intermediate Accounting

    The 10% bonds payable of Klein Company had a net carrying amount of $570,000 on December 31, 2006. The bonds, which had a face value of $600,000, were issued at a discount to yield 12%. The amortization of the bond discount was recorded under the

    asked by Jeniffer on February 11, 2010
  65. Chemistry

    25.0 mL of 0.100 M acetic acid (Ka= 1.8 x 10^-5) is titrated with 0.100 M NaOH. Calculate the pH after the addtion of 27.00 mL of 0.100M NaOH. my work CH3COOH + H2O H3O^+ + CH3COO^- 25mL x 0.100 mmol/ml = 2.5mmol CH3COOH 27mL x 0.100 mmol/ml = 2.7mmol NaOH

    asked by Anonymous on June 30, 2010
  66. chemistry

    I cannot figure out how to work this stoichiometry problem with the given equation: Mg+2HCl-->MgCl2+H2 What volume of hydrogen is produced from the reaction of 50.0g of Mg and the equivalent of 75g of HCl What do you not understand about it? It is a

    asked by Carter on February 5, 2007
  67. math

    What are the divisibility short cuts that help you out? Odd numbers can only be divided evenly by another odd number. Even numbers can be evenly divided by either odd or even numbers. 2---Numbers that end in 0, 2, 4, 6, or 8 are evenly divisible by 2.

    asked by chris on December 19, 2006
  68. Social studies

    Here is the question: place the events in order from 1 to 5 : The Normans invade England. ; Germanic tribes settle in the east of Britain. ; England develops a standardized system of coinage. ; Anglo-Saxon kingdoms form. ; England develops a strong

    asked by Gacha Lover on November 16, 2018
  69. Algebra

    My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match

    asked by Chioma on December 8, 2016
  70. algebra

    My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match

    asked by Linda on November 1, 2011
  71. Physics

    Three objects with masses m1 = 7.4 kg, m2 = 11 kg, and m3 = 18 kg, respectively, are attached by strings over frictionless pulleys (M1 hangs off the left side of the table and M3 hangs off the right side of the table with M2 between them on the table). The

    asked by Dug on October 22, 2012
  72. Physics

    Two point charges, +Q and -Q of mass m, are placed on the ends of a massless rod of length L, which is fixed to a table by a pin through its center. If the apparatus is then subjected to a uniform electric field E parallel to the table and perpendicular to

    asked by Taylor on February 28, 2012
  73. physics

    A 16lb block rests on a horizontal frictionless surface. A cord attached to the block, running horizontally, passes over a pulley whose diameter is 6in, to a hanging block weighing 16lb. The system is released from rest, and the blocks are observed to move

    asked by I Don't Know on April 29, 2015
  74. Juvenile Justice

    I need help trying to do a portfolio the assignment is: develope a comprehesive portfolio of information about your group (my selected group is gangs) in the juvenile justice system. These are the things that I have to cover: profile and risk factors,

    asked by Kenneth on August 9, 2008
  75. physics

    A tallest vocano in the Solar System is the 24 km tall Martian volcano, Olympus Mons. Assume an astronaut drops a ball off the rim of the crater and that the free fall acceleration remains constant throughout the ball's 24 km fall at a value of 3.7m/s^2.

    asked by Anonymous on September 15, 2007
  76. Physics

    Two point charges, +Q and -Q of mass m, are placed on the ends of a massless rod of length L, which is fixed to a table by a pin through its center. If the apparatus is then subjected to a uniform electric field E parallel to the table and perpendicular to

    asked by Taylor on February 28, 2012
  77. Written Communication

    Discuss how you would approach creating a negative message for a superior (such as a manager at work or an instructor) versus creating a message for a colleague, subordinate, or fellow student. Answers from previous postings:

    asked by Mimi on June 27, 2007
  78. WorldHistory

    How was the structure of the Church like that of the feudal system? Feudalism is based on three things: fief, fealty, and faith. Translation: land, loyalty, religion. So basically the Church was a very important part of feudal society because it owned tons

    asked by _ on May 3, 2013
  79. physics

    The Figure shows two blocks, block 1 and block 2, held in equilibrium by a massless, unstretchable string. The mass of block 1 is 14.2 kg, the mass of block 2 is 6.2 kg, and the angle theta is 26o The system begins to slip if any additional mass is added

    asked by anonymus on September 10, 2018
  80. physics

    Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string, as shown in Figure P5.64. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is µk = 0.25.

    asked by megan on March 3, 2011
  81. physics

    is2A wedge of mass M fitted with a spring of stiftness k is kept on a smoth hrizontal surface. A rod of mass m is kept on the wedge as shown in the figure. System is in equilibrium. Assuming that all the surfaces are smooth, the potential energy stored in

    asked by anil jha on December 15, 2012
  82. AED

    I need help: consider that educational goals and standards reflect the goals and standards of the society in which schools exist. Then provide examples of the similiar as well as the differing roles that home,society, and school play in today's educational

    asked by dawn on October 8, 2008
  83. physics

    A 1.16 kg block and a 2.32 kg block are initially at rest on a frictionless, horizontal surface, with a compressed spring of negligible mass between them. When the blocks are released, they move off in opposite directions. If the final velocity of the 1.16

    asked by koko on October 17, 2012
  84. chemistry

    A student designs an ammeter (a device that measures electrical current) that is based on the electrolysis of water into hydrogen and oxygen gases. When electrical current of unknown magnitude is run through the device for 1.00 min , 15.4 mL of

    asked by EBB on April 27, 2016
  85. World History

    These documents(Declartion of the rights of man and the citizen, English bill of rights, Marna carta , declaration of independence) established a system in which: a.The power of a leader came straight from God b. The individual was more important than the

    asked by Boberto on February 27, 2016
  86. physics

    A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper at 84°C. The other sample has a mass of 58 g and is originally at a

    asked by Annette on April 29, 2013
  87. Physics

    A 0.490-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 25.0N/m . The block rests on a frictionless surface. A 6.00×10−2-kg wad of putty is thrown horizontally at the block, hitting it with a

    asked by Lhaedy on October 25, 2013
  88. biology

    If you inject carbon nanotubes into the body, can we produce antibodies against it? some ideas: - my answer is yes and no... the carbon nanotubes are too large for the t-cell to destroy it; therefore, they won't have an affect. -plus our whole body is made

    asked by david on March 3, 2011
  89. Cost of Accounting

    1-How does an actual system differ from a normal costing systems? What advantages does a normal costing systems offer? 2-Why is it necessary for a company to specify a relevant range of activity when making assumptions about cost behavior? 3- Why is it

    asked by Josephine on September 25, 2009
  90. math

    Jay rides his 2.0-kg skateboard. He is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. The board now goes forward at 13 m/s. A. Determine Jay’s mass. B. Determine the change in the internal energy

    asked by Maddie on February 1, 2019
  91. Chemistry(Please help)

    For the reaction, 2 SO2(g) + O2(g) == 2 SO3(g), at 450.0 K (Kelvin) the equilibrium constant, Kc, has a value of 4.62. A system was charged to give these initial concentrations, (SO3) = 0.254 M and (O2) = 0.00855 M, and (SO2) = 0.500 M. In which direction

    asked by Hannah on March 14, 2012
  92. U.S. GOVERNMENT

    1)Independents are people who have strong party affiliation. A) True B) False 2)About 75% of those eligible to vote did so in the 2000 presidential election. A) True B) False 3)If we are indeed a democracy, a government by the people for the people, then

    asked by Booker Perry on June 26, 2012
  93. Java Programming

    Hi! ____ 6. Which of the following shows a valid header for a method that accepts any number of double values and returns an array of double values? (1 point) a) public static double... convert(double... d) b) public static double... convert(double[] d) c)

    asked by Da Fash on November 22, 2017
  94. microbes and society

    Which of the following is the correct sequence of steps in the scientific method? Answers: a. observation - prediction - hypothesis - observation - hypothesis b. hypothesis - observation - prediction - hypothesis - observation c. observation - hypothesis -

    asked by Amber on February 2, 2017
  95. Physics

    In a rectangular coordinate system, a positive point charge 5.0 nC is placed at the point x=0, y=2.0 cm, and a negative point charge -5.0 nC is placed at x=0, y=-2.0 cm. Both charges have masses 4.0x10^-3 g. Point P is at x=3.0 cm, y=2.0 cm. The electric

    asked by Lyndsay on March 5, 2017
  96. chemistry

    In a group 1 analysis, a student adds hydrochloric acid to the unknown solution to make [Cl-] = 0.15 M. Some PbCl2 precipitates. Calculate the concentration of Pb2+ remaining in solutions.

    asked by fatima on November 22, 2014
  97. Chemistry

    Calculate the volume of 1.78M sulfuric acid that would be needed to neutralize 62.4 mL of a 2.09 M aqueous ammonia solution. The equation for the reaction is H2SO4(aq) + 2 NH3(aq) ---> 2 NH4(aq)+ SO4 ^-2 (aq)

    asked by Brea on April 16, 2012
  98. chemistry

    If 1030 g of a potassium citrate is dissolved in 2320 g of water solvent, calculate the freezing temperature (if below 0 oC, include the sign) of the solution. Consider if the solute is an electrolyte. Kf (oC/m) 1.858

    asked by SuSu on February 2, 2010
  99. chemistry

    What mass of chromium could be deposited by electrolysis of an aqueous solution of Cr2(SO4)3 for 180.0 minutes using a constant current of 10.0 amperes? (One faraday = 96,500 coulombs.)

    asked by ill matic on June 11, 2010
  100. Science

    Which of the following is not an example of a soft-path solution? a) Community-operated ditches b) Micro-sprinkler systems c) New cross-country pipelines d) Protecting a pond’s ecosystem I believe that the answer is...a

    asked by Tammy on October 14, 2012

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