1. chem

    The experiment described in the procedure was performed using a sample of Calcium with HCl(aq). The lab conditions were 25.00°C, and 747.0 torr barometric pressure. 112.7 mg of Calcium (MM: 40.08 g/mol) was reacted with 25.00 mL of 1.25M HCl(aq). 71.560g

    asked by Anonymous on November 18, 2013
  2. Math for Steve

    1. Write the ratio in the simplest form. 45 : 15 a. 9 : 3 b. 3 : 1 c. 1 : 3 d. 4 : 1 4. Jake sold 39 tickets to the school fair, and Jeanne sold 12 tickets. What is the ratio, in simplest form, of the number of tickets Jeanne sold to the number of tickets

    asked by Jman on October 30, 2012
  3. English

    Posted by John on Wednesday, July 2, 2008 at 4:36pm. 9. Four Seasons in One Day? READ AND LEARN Tony : Hello, may I speak to Mr. Smith? Miss Ford : Who's calling, please? Tony : This is Tony. I'm Mr. Smith's son. Miss Ford : Oh, hello. Hold on a second.

    asked by John on July 2, 2008
  4. Chem.

    Nitrogen oxide (NO) has been found to be a key component in the many biological processes. It also can react with oxygen to give the brown gas NO2. When one mole of NO reacts with oxygen, 57.0 kJ of heat is evolved. a) Write the thermochemical equation for

    asked by Christopher on January 29, 2007
  5. Chemistry

    Use the following information to identify element A and come pound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it has been filled with nitrogen gas at a pressure of 790. torr and a

    asked by Julia on March 29, 2007
  6. chemistry

    consider the following changes at constant temperature & pressure H2O(s) --yields-- H20(l); Delta H1 H2O(l) --yields-- H2O(g); Delta H2 H2O(g) --yields-- H2O(s); Delta H3 Using Hess's law, the sum of the deltas is a. equal to 0 b. sometimes greater than

    asked by marcus on November 14, 2012
  7. Math-Algebra

    Bracy would like to form a right triangle our of her wooden sticks. She cut the first stick of the length 6 inches and the second stick of the length 4 inches. What should be the length of the third stick to make sure she will be able to form a right

    asked by McKenna Louise on October 22, 2013
  8. Psycholofgy

    Help is needed! Please help! Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other people are nearby, to the strongest form _______, which involves changing one's behavior because you

    asked by Princess on December 12, 2011
  9. Psychology

    Help is needed! Please help! I said the answer is C Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other people are nearby, to the strongest form _______, which involves changing

    asked by Princess on December 12, 2011
  10. Psycholofgy

    Help is needed! Please help! Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other people are nearby, to the strongest form _______, which involves changing one's behavior because you

    asked by Princess on December 12, 2011
  11. Algebra

    a. Suppose that a market research company finds that at a price of p = $31, they would sell x = 74 boxes of product each month. If they lower the price to p = $25, then more people would purchase the product, and they can expect to sell x = 80 boxes in a

    asked by Anonymous on April 29, 2010
  12. chemistry

    Thermite mixtures are used for certain types of weldings and the thermite reaction is highly exothermic. Given delta H= -852 KJ/mol, 1 mole of granular Fe2O3 and 2 moles of granular aluminum are mixed at room temperature and the reaction is initiated. the

    asked by sharmaine on July 27, 2013
  13. chemistry

    Thermite mixtures are used for certain types of weldings and the thermite reaction is highly exothermic. Given delta H= -852 KJ/mol, 1 mole of granular Fe2O3 and 2 moles of granular aluminum are mixed at room temperature and the reaction is initiated. the

    asked by sharmaine on July 27, 2013
  14. Psycholofgy (Please Help)

    Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other people are nearby, to the strongest form _______, which involves changing one's behavior because you are forced to. I choose C a.

    asked by Princess on December 12, 2011
  15. Math-check my work please??

    Write an equation, in point-slope form, for the line that is perpendicular to y – 10 = 3/2 (x – 4) and that passes through the point (4, 2). My Answer: Formula for point-slope form; y – y = m(x – x) Insert y and x value; y – 2 = m(x – 4) If the

    asked by Scarlet (Scar for short) on March 21, 2016
  16. chemistry

    How does an ionic bond form between zinc and oxygen? Zn has two electrons in its outside shell and wants to lose those two. Oxygen has six electrons in its outside shell and wants eight; therefore, oxygen takes the two electrons form Zn making the Zn with

    asked by carter on November 20, 2006
  17. Chemistry

    Hi! I am having some trouble with this question, can you please help me? Which of the following describe chemical properties? Check all that apply. - Iodine (a purple solid) becomes a purple gas. - Titanium is less dense that iron . - Water freezes at 0'C

    asked by Kris on September 10, 2015
  18. Chemistry

    I have two questions: 1. Which group in the periodic table reacts with H2 to form compounds with the general formula MH2? A. Group 1A B. Group 2A C. Group 3A D. Group 4A E. Group 5A 2.Which reacts with F2 to form compounds with the general formula MF2? A.

    asked by Londy on April 20, 2007
  19. 12th grade English

    Can you check my essay, it is not done, but I want to see if I'm on the right track? My essay is on Hamlet and the thesis statement: "Domino effect of death" Hamlet: A Chain Reaction of Death In Hamlet, death is seen throughout the play, and is one of the

    asked by Shane on December 26, 2009
  20. Biochem

    You wish to measure the ∆G°' for the hydrolysis of ATP: ATP --->ADP + Pi But the equilibrium for the hydrolysis lies so far toward products that analysis of the ATP concentration at equilibrium is neither practical or accurate. However, you have the

    asked by Manny on September 14, 2009
  21. social studies

    how was the reaction to the wave of immigrants coming to America in the 2000s similar to the reaction to immigration in the 1920s? A)Immigrants were welcomed for their labor and contributions to tax revenues and the economy. B)There was pressure on

    asked by Sue the lawyers daughter on May 22, 2018
  22. music

    what is the definition for bimary form in music???????????????????????????? If you truly mean bimary, here are the results I got when I searched in Google:

    asked by Kelly on September 24, 2006
  23. Jefferson

    Nitric acid and zinc react to form zinc nitrate, ammonium nitrate, and water. 4Zn(s) + 10HNO3(aq)→ 4Zn(NO3)2(aq) + NH4NO3(aq) + 3H2O(l) A. How many atoms of zinc react with 1.49g HNO3? B. Calculate the number of grams of zinc that must react with an

    asked by Gloria on January 7, 2013
  24. chemistry

    Nitric acid and zinc react to form zinc nitrate, ammonium nitrate, and water. 4Zn(s) + 10HNO3(aq) → 4Zn(NO3)2(aq) + NH4NO3(aq) + 3H2O(l) A. How many atoms of zinc react with 1.49g HNO3? B. Calculate the number of grams of zinc that must react with an

    asked by Anonymous on January 7, 2013
  25. Steve Math

    1. Write the ratio in the simplest form. 45 : 15 a. 9 : 3 b. 3 : 1 c. 1 : 3 d. 4 : 1 4. Jake sold 39 tickets to the school fair, and Jeanne sold 12 tickets. What is the ratio, in simplest form, of the number of tickets Jeanne sold to the number of tickets

    asked by Jman on October 30, 2012
  26. English Writing

    i have an assignment that i have to email back my friend on identifying minerals. the trouble is how do i write this assignment in "EMAIL FORM" could you helped me please very please...i already finished my assignment now i just have to turn the write up

    asked by needhelp on April 25, 2011
  27. Psycholofgy

    Please help me! I have been on this one question for some hours now and still don't if this is the correct answer. I choose A Social influence ranges in intensity from the gentlest form _______, which involves changing one's behavior just because other

    asked by Princess on December 12, 2011
  28. Chemistry

    3) The following set of data was obtained by the method of initial rates for the reaction: 2 HgCl2(aq) + C2O42-(aq) 􀀏 2 Cl-(aq) + 2 CO2(g) + Hg2Cl2(s) What is the rate law for the reaction? [HgCl2], M [C2O42-], M Rate, M/s 0.10 0.10 1.3 × 10-7 0.10

    asked by Olivia on October 27, 2010
  29. Chemistry

    Ammonium ion (NH4^+) reacts with nitrite ion (NO2^-) to yield nitrogen gas and liquid water. The following initial rates of reaction have been measured for the given reactant concentrations. Expt. # [NH4^+] [NO2^-] Initial rate (M/hr) 1 0.010 0.020 0.020 2

    asked by Anonymous on February 6, 2013
  30. Science.

    Frost wedging is a form of weathering caused by water seeping into the cracks of rocks. This type of weathering is common in regions that have very cold winters. How does frost wedging take place? A) This is a physical weathering process — when water

    asked by AyItsYoAnimeGurl on December 14, 2018
  31. algebra

    I need help understanding how to do these problems. Thanks! 1) Find the value(s) that would be left out of the range of f. If there is more than one value separate them by commas. Leave fractional answers in fraction form. If there are no values left out

    asked by alyssa on May 3, 2011
  32. algebra please help!

    I need help understanding how to do these problems. Thanks! 1) Find the value(s) that would be left out of the range of f. If there is more than one value separate them by commas. Leave fractional answers in fraction form. If there are no values left out

    asked by randy on May 3, 2011
  33. chemistry

    Create balanced equation, given the two compounds in aqueous solution may react with one another. State whether or not a chemical reaction occurs. Make sure to include the state of each reactant and product. If a precipitation reaction occurs, provide the

    asked by Aaron on February 20, 2017
  34. chemistry

    For the gaseous equilibrium represented below, it is observed that greater amounts of PCl3 and Cl2 are produced as the temperature is increased. PCl5 (g) PCl3 (g) + Cl2 (g) a) what is the sign of delta S for the reaction? Provide a legitimate rationale for

    asked by alex on March 28, 2012
  35. Math

    Can someone please make up data and show me how these questions are done? In the original problem, the data includes; the base fare price, price by mile and price by minutes. a)Use the data shown above and express in words the amount the cab company

    asked by Sage on December 14, 2015
  36. geology (very urgent)

    i have an assignment that i have to email back my friend on identifying minerals. simple enough the trouble is how do i write this assignment in "EMAIL FORM" could you helped me please very please...i already finished my assignment now i just have to turn

    asked by needhelp on April 25, 2011
  37. geology (VERY X3 URGENT)

    i have an assignment that i have to email back my friend on identifying minerals. simple enough the trouble is how do i write this assignment in "EMAIL FORM" could you helped me please very please...i already finished my assignment now i just have to turn

    asked by needhelp on April 25, 2011
  38. Science

    Why are salts, such as sodium chloride made of elements found on opposite ends of the periodic table? a. elements on the far left tend to form positive ions while those on the right tend to form negative ions. b. elements on opposite ends of the periodic

    asked by Anonymous on May 29, 2007
  39. Chemistry

    For the chemical reaction, sodium hydroxide + copper (II) chloride = "robin's egg blue" precipitate, do the following: write the balanced molecular, balanced total ionic, and balanced net ionic equations; determine the Limiting Reactant (LR) for each

    asked by Anonymous on November 1, 2015
  40. Corrected Temperature Problem

    Q: The activation energy of a certain reaction is 32.9 kJ/mol At 25 degrees C the rate constant is 0.0160 units s-1 units. At what temperature in degrees Celsius would this reaction go twice as fast? My work: ln(0.0160/0.032) = (32,900/8.314)(1/T2 -

    asked by Amy on February 2, 2013
  41. physics

    4. A mover wants to push a box down a hall. The mover applies an ‘action’ force on the box (the push). According to Newton’s 3rd law, there is a ‘reaction’ force applied in the opposite direction. The larger the action force applied by the mover,

    asked by XOXOX on October 24, 2015
  42. More Chemistry (yeah im bad at math...)

    In the Reaction CO+2H²-->CH³OH, 1.27 g of CH³OH are made in the lab. The Percent yield of this reaction is___. Would the answer be 42? Pick a number, any number. You need to know how much CO OR H2 you started with. As it stands, the answer is

    asked by Briana on January 18, 2007
  43. Spanish-Please check

    I have some questions about using ser or estar 1.If I am from a place I would use soy and if I am in a place I would use estoy like Yo soy or Yo estoy?? 2.If I'm saying you are sick, I would use estás-form of estar? 3.¿Dónde están ellos? Correct?

    asked by Mary Beth on December 11, 2011
  44. Chemistry- urgent!

    When a solution of sodium oxalate (Na2C2O4) is added to a solution of lanthanum (III) chloride, lanthanum oxalate (molar mass 541.86 g/mol) The balanced net ionic equation for the reaction is: 3C2O4^2- (aq) + 2La^3+ (aq) --> La2(C2O4)3 (s) Thirty ml of

    asked by Gabby on December 15, 2011
  45. Chemistry

    A butyl rubber bag of total volume 3.0 m3 is used as a biogas digester. Each day it is fed an input of 0.20 m3 of slurry, of which 4.0 kg is volatile solids, and a corresponding volume of digested slurry is removed. (This input corresponds roughly to the

    asked by Avneel on March 26, 2019
  46. Math-Involing i's

    1)What is the product of 5+ Radical (-36) and 1-Radical (-49) expressed in simplest a+bi Form? 2) Express Radical (-27) + i^22 + 3-Radical (-25) +5 Radical (-3) in simplest a+bi form.

    asked by Joey on December 11, 2008
  47. chem 100

    Super confusing question im not sure how to approach a. Determine the concentration of lead ion in solution (the molar solubility) if PbI2(s) is in equilibrium with water. Ksp = 9.8*10-9 b. From part a, it should be clear that if Pb2+(aq) and I-(aq) are

    asked by Mall on May 21, 2015
  48. Math

    Is there a formula to calculate the dimensions of the arcs on a flat piece of paper needed to form a parabolic dish? Say I was making a parabolic dish out of cardboard segments, would there be a way to calculate the size of the segments needed to form a

    asked by Anonymous on March 2, 2019
  49. Business/Finance

    Your credit card: a) Is a form of demand deposit b) Is a form of time deposit c) Is an asset d) Has all the functions of money So from my understanding, credit cards are not an asset, since they do not store value, can't be sold or given away. Hence they

    asked by Nikki on March 31, 2013
  50. chemistry

    The synthesis of urea by Frederich Wöhler in 1825 began the decline of the idea that "organic" chemicals could only be made by living organisms as part of their biological processes. AgOCN(aq) + NH4Cl(aq) → AgCl(s) + NH2CONH2(aq) If you perform this

    asked by Anonymous on October 16, 2011
  51. Science 4

    How long does it take an M-type star to form, compared to the time for a solar-type to form? A.Half as long B.About the same time C.Twice as long D.20 times as long E.200 times as long c

    asked by Liz on November 2, 2006
  52. biology

    Which of the following is not true about water molecules? a. Water molecules are polar b. Water molecules form hydrogen bonds c. Water molecules form ionic bonds *** d. Water is an effective solvent

    asked by Anonymous on August 6, 2018
  53. Physics

    Engineering 100 Homework Problem #1 Below is a diagram of a beam supported on the left end by a pin connection, and toward the right side by a simple fulcrum. A force F is applied to the far right end of the beam as shown. The uniform beam has mass, m,

    asked by Jamie on September 27, 2011
  54. Chemistry (equlibrium direction) urgent

    Consider the endothermic reaction 2 NO(g) N2(g) + O2(g) -If I decrease the volume of the vessel and increasing the total pressure in the vessel, what direction will the equilibrium will shift? (left/right) (I know that decreasing the volume would shift to

    asked by Ray on December 4, 2016
  55. Math

    1.Write the equation 5x+y-2=0 in normal form. 5x+y-2=0 5x+y=2 (add two to both sides) Standard form (Ax+By=C)---> 5x+y=2 Y-intercept (when x equals 0) 5x+y-2=0 5x+y=2 5(0) +y=2 y=2 X-intercept (when y equals 0) 5x+y-2=0 5x+y=2 5x+0=2 x=2/5 Slope intercept

    asked by Jon on April 25, 2009
  56. french (Checking answers)

    I'm not sure if I'm correct but I tried answering, THANKS Ms.Sue for helping. What is the correct form of lequel to replace the follow noun: le balcon - Lesquels - Lequel

    asked by Mya on March 9, 2015
  57. chemistry

    one reaction was between the aluminum and the leftover hydrochloric acid the products are aluminum chloride and hydrogen gas. the other reaction was the aluminum and the copper(II)chloride.. this produced aluminum chloride and copper metal. what was the

    asked by dianne on October 10, 2011
  58. History

    Which accurately describes a similarity between medieval Japanese culture and medieval European culture? japan and Europe used a form of representative democracy during the middle ages Japanese samurai and European knight shared similar codes of ethical

    asked by malia on October 19, 2017
  59. Please check answers)

    Perform the indicated operations and simplify the result. Leave your answer in factored form. 1) x/16 - 1/x all over 1 + 4/x A) x+4/16 B) x-4/16 C) 16/x+4 D) 16/x-4 E) -16/x+4 I chose answer C. I saw this as x^2-16/ x+4. Multiply the following using the

    asked by Hannah on September 9, 2010
  60. Chemistry

    A balloon filled with 1.35 atm of dimethyl ether gas and 5.25 atm of oxygen gas at 27 °C has an initial volume 2.00L They react according to the following reaction: C2H6O (g) + 3 O2 (g) -> 2 CO2 (g) + 3 H2O (g) The system is allowed to back cool down to

    asked by T on February 19, 2015
  61. Chemistry

    Show the mechanism that illustrates the following reaction. 1-methyl-1-methanol-cyclopentane + acid -> 1-methyl-cyclohexene So, there is an elimination reaction, *AND* the carbon ring grows from a five carbon ring to a six carbon ring. (I hope my IUPAC

    asked by chemstudent on June 6, 2008
  62. algbra 1b

    can someone tell me if i have the answer correct a. Suppose a market research company finds that at a price of p = $40, they would sell x = 27 tiles each month. If they lower the price to p = $15, then more people would purchase the tile, and they can

    asked by nell on May 12, 2012
  63. CHEMISTRY (HELP)

    Which of the following is true about the reaction between sodium bromide and silver sulfate? 1. No reaction 2. Total ionic equation is identical to the net ionic equation 3. Sodium ions and sulfate ions are present in the toal ionic equation but not in the

    asked by Gina on May 11, 2011
  64. Chemistry

    Which of the following is true about the reaction between sodium bromide and silver sulfate? 1. No reaction 2. Total ionic equation is identical to the net ionic equation 3. Sodium ions and sulfate ions are present in the toal ionic equation but not in the

    asked by Gina on May 11, 2011
  65. Chemistry

    Can anyone help I have to write an equation a structural formula for a reaction between the following, having some trouble working it out. Hopefully you can understand the way I have put it. CH2=CH-CH-OH there is a CH3 with single bond under CH next to OH

    asked by Annie on February 27, 2007
  66. organic chemistry

    in gas chromatography, why do E1 and E2 give different peaks (areas) though it's the same compound?? dehydration of a secondary alcohol proceeds readily with the presence of strong acid and proceeds with E1 mechanisms. Removing product from chemical system

    asked by Yoo on January 24, 2011
  67. chemistry

    1. Ceramic material made by the sol-gel process involve the reaction of a. water and acids. b. ethanol and water. c. water and metal oxides. d. acids and metal alkoxides. e. water and metal alkoxides. my ans. c 2. The step in the sol-gel process that forms

    asked by 657 on December 2, 2012
  68. chem help!

    A reaction has an equilibrium constant very much less than 1. Will the reaction proceed spontaneously? A. Yes, because products are favored and deltaG° < 0. B. Yes, because reactants are favored and deltaG° > 0. C. No, because reactants are favored and

    asked by jameson on September 9, 2016
  69. chemistry

    A reaction has an equilibrium constant very much less than 1. Will the reaction proceed spontaneously? A. Yes, because products are favored and deltaG° < 0. B. Yes, because reactants are favored and deltaG° > 0. C. No, because reactants are favored and

    asked by jessie on August 22, 2016
  70. Chemistry URGENT

    Could someone let me know if I have balanced these equations correctly. balanced equation of the reaction of iron and oxygen to produce iron(ii)oxide. 2Fe + O2 = 2FeO Also if the balanced equation of the reaction of iron and oxygen to produce

    asked by linda on March 27, 2014
  71. Fluid Mechanics

    Water enters a turbo-machine at a velocity 12 ft/s. The flow occurs in the horizontal plane. The inside diameters of the inlet and exit pipes are 1 ft and 2 ft, and the gage pressures at the inlet and exit are 10 psi and 5 psi, respectively. The machine is

    asked by Bob on June 11, 2012
  72. Chemistry

    I just wanted to be sure if my answers make any sense. Thank you; For the reaction of ammonia: N2(g) + 3H2(g) --> 2NH3(g) suppose equilibrium has been established. Explain how and why the position of equilibrium will shift in response to the following

    asked by Robert on July 2, 2012
  73. Chemistry - Correction

    I just wanted to be sure if my answers make any sense. Thank you; For the reaction of ammonia: N2(g) + 3H2(g) --> 2NH3(g) suppose equilibrium has been established. Explain how and why the position of equilibrium will shift in response to the following

    asked by Robert on July 3, 2012
  74. Chemistry

    ASpirin, c9h8o4, is prepared by reating salicylic acid, c7h6o3, with acetic anhydride, c4h6o3, in the reaction. c7h6o3 + c4h6o3---> c9h8o4 + c2h4o2 A student is told to prepare 45.0 g of aspirin. she is also told to use a 55.0 % excess of acetic anhydride

    asked by Komal on September 22, 2008
  75. Chemistry

    Methanol, CH3OH, is produced on an industrial scale from carbon monoxide and hydrogen. At the temperatures used, gaseous methanol is formed according to the following thermochemical equation: CO(g)+ 2H2(g) CH3OH(g) £H = -90Kj 1. State Le Chateliers

    asked by Adam on March 2, 2007
  76. Science Sorry I just need help one more time!

    Ok I am doing a project in science on radiation. I have to make a brochure. I need help answering these questions about radiation. Or some good sites would be nice too. I looked on google but they didn't really help. Thank you! Where does radiation come

    asked by Amy on January 15, 2009
  77. chemistry

    if you have one mole of CH3CH3(g) + 2 moles of Cl2 (g) and form one mole of C2H4Cl2 (l) + 2 moles of HCl (g) assuming a 90% yield calculate the amount of each reactant needed to form 1.5 kg of product I started the problem following the rules from the

    asked by noell on August 30, 2010
  78. Chemis

    Steve, in an attempt to impress his girlfriend, plops 18.2 grams of sodium metal into 500 mL of concentrated phosphoric acid (density = 1.88 g/cm3) in a beaker. The reactants were both initially at 25 oC. The reaction gently produced bubbles of hydrogen

    asked by Veronica on December 9, 2012
  79. chemistry

    Steve, in an attempt to impress his girlfriend, plops 18.2 grams of sodium metal into 500 mL of concentrated phosphoric acid (density = 1.88 g/cm3) in a beaker. The reactants were both initially at 25 oC. The reaction gently produced bubbles of hydrogen

    asked by Veronica on December 9, 2012
  80. Chemistry

    Yesterday we combined Hydrochloric Acid HCl with Sodium Hydroxide NaOH in a violent reaction that resulted in water H2O and common table salt NaCl. How many grams of hydrochloric acid should we use so we have exactly enough to react with 40g of sodium

    asked by Sally on June 19, 2014
  81. physics

    A certain truck can slow at a maximum rate of 4.6 m/s2 in an emergency. When traveling in this truck at a constant speed of 19 m/s the driver spots a large hole in the road 48.2 m in from of his position. The truck continues moving forward at a constant

    asked by lanaaaaaa on September 22, 2013
  82. chemistry

    THE QUESTION ASKS TO CALCULATE THE AMOUNT (IN GRAMS) OF CARBON DIOXIDE FROM THE AMOUNT OF SODIUM BICARBONATE THAT YOU USED IN THE REACTION Run 1. The reaction of citric acid and sodium bicarbonate is written as H3C6H5O7(aq) + 3 NaHCO3(aq) → Na3C6H5O7(aq)

    asked by JENNIFER on February 28, 2017
  83. AP Chem (Thanks!)

    Hey guys! Stuck on some! My maybe answers are written next to the problem (1 problem-5 parts). Thanks for any help: 1. Lead (II) chromate, PbCrO4, is a slightly soluble salt. Write a net ionic equation for the dissolution of solid PbCrO4 in water. My

    asked by Allie on October 22, 2015
  84. Chemistry

    The rate law for the reaction NO + O3 > NO2 is rate= k[NO][O3]. What will the effect on the reaction rate if the partial pressure of NO is doubled? What will the effect if the partial pressure of O2 is tripled? Just for clarification: NO will be doubled

    asked by Liane on August 6, 2015
  85. Science

    The rate law for the reaction NO + O2 > NO2 is R=k[NO][O2]. what will be the effect on the reaction rate if the partial pressure of NO is doubled? What will the effect be if the partial pressure of O2 is tripled? My answer: More NO2 would be produced if NO

    asked by Anonymous on July 9, 2015
  86. math, correction

    Add or subtract as indicated. Express your result in simplest form. (5)/(4cd) Plus (11)/(4cd) My answer: (4)/(cd) --------------------------------------- Add or subtract as indicated. Express your result in simplest form. (x^2)/(x-3) Subtracted by

    asked by jas20 on March 2, 2007
  87. chemistry

    Calculation of )Hf0 for Mg2+(aq.) 1. Assume the heat capacity of the final solution is 3.92 J K-1 g-1. Using the mass of the HCl solution, calculate qcontents from equation (4.6). Calculate qsystem from equation (4.5). 2. Calculate the moles of Mg2+

    asked by Narash on March 25, 2011
  88. Math

    1.) Write the standard form equation for the following Ellipse. Use the information given below. Foci: (0,0) and (4,0) 2.) Write the standard form equation for the following Hyperbola. Use the information below. Vertices (-2,1) and (2,1) Foci: (-3,1) and

    asked by Lucy on May 13, 2015
  89. Physics, van de graff generators...

    When a small metal ball with a charge is placed in an electrical field supplie dby a van de graff generator, it experiences a force from the generator, and thus it applies a reaction force. But does the ball also apply a force met with a reaction force of

    asked by TJ on June 22, 2006
  90. chem

    Ammonium carbonate (solid) decomposes when heated to produce three gaseous products - ammonia, water, and carbon dioxide. 1. Write the balanced equation for the reaction. 2. Suppose that ammonium carbonate is heated to 500 K in a sealed vessel. At

    asked by jake on May 13, 2010
  91. college chem

    Ammonium carbonate (solid) decomposes when heated to produce three gaseous products - ammonia, water, and carbon dioxide. 1. Write the balanced equation for the reaction. 2. Suppose that ammonium carbonate is heated to 500 K in a sealed vessel. At

    asked by jake on May 18, 2010
  92. English

    What makes a verb irregular? does not form it's past and present by adding -ed or -d to the past participle does not form it's past and past participle by adding -ed or -d to the present*** does not act as a verb in context functions as a verb but appears

    asked by Jordan on May 4, 2016
  93. Biology A

    A lab technician runs the results of a simple PCR reaction through a gel electrophoresis to test a sample of imported hamburger meat for the presence of a DNA sequence that is known to be found in kangaroos and not in cows. What exactly will he be looking

    asked by Brittiany on July 27, 2018
  94. Chemistry

    What is the full net ionic equation for each reaction? do they form a precipitate or have a color change? CuSO4+AgNO3 CuSO4+BaCl2 CuSO4+Cu(NO3)2 CuSO4+Pb(NO3)2 CuSO4+KI CuSO4+Na2S2O3 AgNO3+BaCl2 AgNO3+Cu(NO3)2 AgNO3+Pb(NO3)2 AgNO3+KI AgNO3+Na2S2O3

    asked by Joe on May 27, 2008
  95. Chemistry

    What is the full net ionic equation for each reaction? do they form a precipitate or have a color change? CuSO4+AgNO3 CuSO4+BaCl2 CuSO4+Cu(NO3)2 CuSO4+Pb(NO3)2 CuSO4+KI CuSO4+Na2S2O3 AgNO3+BaCl2 AgNO3+Cu(NO3)2 AgNO3+Pb(NO3)2 AgNO3+KI AgNO3+Na2S2O3

    asked by Joe on May 27, 2008
  96. Calculus

    Write the polar equation in rectangular form. r = 12 sin theta Write the rectangular equation (x + 7)^2 + y^2 = 49 in polar form

    asked by batmo on September 17, 2012
  97. vectors in three space

    a) Describe the form of the coordinates of all points that are equidistant from the x- and y-axes. b) Describe the form of the coordinated of ll points that are equidistant from the x-, y- and z-axes.

    asked by Shaila on August 9, 2010
  98. Chemistry (2 questions)

    1. What kinds of bonds will most likely form from groups 1,2,3,6,7, and 8 on the periodic table? 2. What kinds of bonds will most likely form from group 4 on the periodic table?

    asked by Angie on March 22, 2013
  99. Chemistry

    HCl(aq) +NaOH(aq) ---> NaCl +H2O In a coffee cup calorimeter 50 ml of 2.00M HCl was combined with 50ml of 2.05M NaOH. a) What is the enthalpy change for the reaction? b) What is the molar enthalpy for the reaction? Given: Change in T= 14 degrees celsius

    asked by Kuu on October 8, 2013
  100. chemistry

    During the combustion of 5.00g of octane C8H18, 239.5 kcal is released. Write a balanced equation for the combustion reaction. Are reactants or products favored? What is the sign of change of heat for this reaction? how much energy is released by the

    asked by jennifer on June 7, 2015