1. chemistry

    is the fizz from soda pop a chemical reaction?

    asked by Lucas Hockenbury on August 27, 2009
  2. Chemistry

    OH- + C6H5CH2COOH H2O + C6H5CH2COO- What is the K for the reaction above in terms of Ka's, Kb's, Kw etc.?

    asked by Megan on October 4, 2010
  3. apchem

    can someone explain the synthesis reaction from ethane to acetylene?

    asked by anon on May 22, 2011
  4. Science

    How are these related? reractant, product, and chemical reaction

    asked by Bryce on September 5, 2011
  5. Chemistry

    What is the equation for the reaction between stearic acid and ammonia?

    asked by Anonymous on January 22, 2016
  6. chemistry

    What does it mean when the sulfuric acid is written ABOVE the arrow in a reaction?

    asked by chrissy on September 1, 2009
  7. Chemistry

    What compounds can be formed by the reaction of K2SO4 and BaCI2?

    asked by Lea on February 27, 2012
  8. Chem

    What is the enthalpy for the following reaction? C2H4+H2O--->C2H5OH

    asked by Kay on November 4, 2010
  9. Chem

    What is the oxidation half-reaction for Mg(s)+ZnCL2(aq)>MgCL2(aq)+Zn(s)?

    asked by Whitney on February 27, 2014
  10. CHEM

    At 1100 K, Kp = 0.25 for the following reaction. 2 SO2(g) + O2(g) 2 SO3(g) What is the value of K at this temperature?

    asked by Anderson on January 8, 2012
  11. science

    2Zn+O2=2ZnO. What type of chemical reaction is it

    asked by Himanshu on August 13, 2017
  12. Science PLEASE HELP ASAP

    Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic?

    asked by Rodeo~Babe on April 5, 2018
  13. Environmental science 11th

    Describe how energy is produced in a nuclear reaction.

    asked by Anonymous on February 4, 2013
  14. GSGS

    what is a limiting reagent of the reaction CuSO4 and Pb(NO3)2

    asked by GSGS on July 9, 2012
  15. chem 2

    calculate kc for reaction I2 (g)+Cl2 (g)⇌2ICl(g )Kp=81.9 (at 298 K)

    asked by tiffany on October 6, 2013
  16. Chemistry

    What is the rate law of the reaction 2NO2 gives N2O4?

    asked by Sam on February 16, 2011
  17. CHEM

    At 1100 K, Kp = 0.25 for the following reaction. 2 SO2(g) + O2(g) 2 SO3(g) What is the value of K at this temperature?

    asked by Anderson on January 8, 2012
  18. chemistry

    why might you not observe a reaction even though an activity series indicates it should occur?

    asked by mel <3 on February 27, 2011
  19. Chemistry

    which sign of chemical reaction is not detectable by sight?

    asked by shay on October 3, 2012
  20. Chemistry

    In which condition(s) can I get this reaction: Fe + H2SO4 = Fe2(SO4)3 + H2

    asked by Keal on April 28, 2015
  21. Science

    How do I write the correct dissolution reaction for BaCl2

    asked by Morgan on September 16, 2015
  22. Chemistry

    Which of the following shows the correct dissolution reaction for BaCl2?

    asked by Morgan on September 16, 2015
  23. Chemistry

    how do you write the reduction half-reaction of ions?

    asked by Abree on April 16, 2008
  24. Organic Chemistry

    The reaction of (Z)-butenedioic acid with 1,3-cyclopentadiene gives only one product. Why?

    asked by Blair on February 20, 2009
  25. chemistry

    who was the first scientist to identify a nuclear bombardment reaction?

    asked by melissa on February 8, 2012
  26. Chemistry

    What is the Net Ionic Reaction for NaOH(aq) + H2SO4(aq)-->

    asked by Erick on May 8, 2012
  27. chemistry

    If you have 64.3 g NH3, how many grams of F2 are required for complete reaction?

    asked by zdood on February 15, 2011
  28. physics

    reaction of lead nitrate with sodium iodide

    asked by teele on June 15, 2012
  29. Chemistry

    Explain why a catalyst speeds up a chemical reaction.

    asked by Tais on August 1, 2015
  30. Science

    What is the combustion reaction for Isopropyl Alcohol (C3H8O)?

    asked by Michelle on May 31, 2010
  31. Chemistry help pls

    DEFINE REDOX REACTION WIT EXANPLE

    asked by PEREKUN KING HEZEKIAH IYANU on January 15, 2018
  32. physics

    Complete the following nuclear reaction: ^16,v8 O + ^4, v2 He → ________ + ^19, v10 Ne 1p 1n 2H 3H

    asked by Anonymous on March 17, 2014
  33. chemistry

    What is the net ionic equation for the reaction of H2SO3 with Ba(OH)2?

    asked by khin on March 22, 2010
  34. science

    Classify the reaction between zinc and acetic acid.

    asked by Person on December 2, 2017
  35. Chemistry

    I really need help with this; it'll be the last chemistry question I ask: 44. Identify the type of reaction. a. AB ---> A+B b. AB + C--> AC + B c. AB + CD --> AD + CB Thanks -MC

    asked by mysterychicken on November 3, 2010
  36. Chemistry

    What are the major organic products of this reaction: CH3CH2CH2COCH2CH3

    asked by Bobby on March 21, 2010
  37. Chemistry

    A certain first-order reaction has a rate constant of 2.60×10−2 s-1 at 18 C. What is the value of k at 55 C if Ea = 90.0 kj/mol?

    asked by gary on February 6, 2012
  38. Chemistry

    Is this reaction exothermic or endothermic? Fe(NO3)3+ NaSCN

    asked by Elisa on December 11, 2012
  39. science

    the spectator ions of all substance that are soluble of the reaction

    asked by kholofelo on September 2, 2015
  40. Science Question Help!!

    Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic. Can someone help me with this please!!

    asked by that emo girl! on March 15, 2018
  41. Chemistry

    What is the reaction between methanol and ethanoic acid when heated?

    asked by Everine on January 28, 2014
  42. Chemistry

    Write a balanced equation for each reaction Al + Cl2 -->

    asked by Zackary on March 17, 2010
  43. Science

    Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic?

    asked by Pier on February 10, 2018
  44. biology

    what is the major source of energy for cellular reaction?

    asked by abdias on February 1, 2009
  45. Chemistry

    How many grams of Ni(OH)2 are produced from the reaction of 30.0 mL of 1.75 M NaOH solution?

    asked by Lynn on May 24, 2010
  46. science

    how the particals behave in the reaction between iron and suiphur

    asked by GG on October 13, 2009
  47. science

    what is the difference between a chemical reaction and physical separation.

    asked by nina on February 8, 2009
  48. chemistry

    How much heat (in kilocalories) is released when 7.87g of Al is used in the reaction?

    asked by dakota on March 9, 2015
  49. Chemistry

    Provide the products for this reaction: CH3O- +CH3SH -> ????

    asked by Anon. on September 22, 2013
  50. Chemistry (reactions)

    Ch3Ch2Ch2MgBr + H2O = I just need to complete the reaction not balance it.

    asked by dan on April 6, 2008
  51. Chem

    Bronsted reaction HCO3-+HF acid?+base?

    asked by Sharon on February 21, 2014
  52. Chemistry

    Calculate the enthalpy change at 300kalven for the reaction?

    asked by Charan on January 17, 2012
  53. Chemistry

    A+2B--->2C Kc=2.27 2c--->D Kc=0.144 Calculate the equilibrium constant for the reaction D--->A+2B

    asked by Meredith on February 21, 2014
  54. Chem

    Is this half-reaction H2(g) + 2 OH-(aq) ===> 2 H2O(l) = 2 e reduction or oxidation?

    asked by Ginger on March 29, 2008
  55. PLEASE CHEM

    balance the redox reaction NO2^- + Ag^+ = NO3^- + Ag

    asked by LOLA on February 14, 2015
  56. Science

    The half-reaction of 3 Pb + 2 NO3 + 8 H-->3 Pb2+ + 2 NO + 4H2O

    asked by Noluvuyo habasisa on March 14, 2011
  57. chemistry

    What is the net ionic equation for the reaction of AgNO3 with Ba(OH)2?

    asked by Brandon on October 18, 2010
  58. Chemistry

    What is the minimum amount of 5.9M M H 2 SO 4 necessary to produce 26.7g of H 2 (g) according to the following reaction? 2Al(s)+3H 2 SO 4 (aq)¨Al 2 (SO 4 ) 3 (aq)+3H 2 (g)

    asked by Anonymous on August 5, 2013
  59. Chemistry

    What is an example of an everyday endothermic reaction in which bonds are broken?

    asked by Anonymous on October 13, 2018
  60. Social Studies

    Describe the Stamp Act and the colonists’ reaction to it.

    asked by Jadah on September 14, 2018
  61. organic chemistry

    how do you increase the yield of triphenylmethanol in a grignard reaction?

    asked by Rachel on March 8, 2010
  62. Science

    Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic?

    asked by Zack on March 13, 2015
  63. chemistry

    write the reaction for the dehydration of CuSO4 . XH20?

    asked by Alisha on June 14, 2010
  64. chemistry

    What are the products of a reaction between NaCl, HNO3, and AgNO3?

    asked by Neil on March 13, 2011
  65. chem

    evaluate E^0 for the half reaction: CO2 (g) + 2H + 2e^- HCOOH ( Aq)

    asked by katya on November 16, 2008
  66. Chemistry

    Hess'slaw can be applied to calculate the reaction is?

    asked by Shyam on July 17, 2018
  67. college chemistry

    How many grams of Mg(OH)2 can be prepared from the reaction of 20.0g of Mg3N2 with 10.0g of H2O?

    asked by Cami on December 6, 2010
  68. Chem.

    What is the overall stoichiometry for the reaction between iodide and peroxydisulfate ions?

    asked by Kay. on February 13, 2014
  69. 1st grade

    please help me with easy comments about sulpur and iron reaction

    asked by gina on November 12, 2008
  70. Chemistry

    explain why glucose 1,6 bisphosphate would not be able to go through the aldolase reaction.

    asked by Max on October 20, 2013
  71. science

    what is the difference between a physical change and a chemical reaction

    asked by hi on March 10, 2011
  72. Chemistry

    Calculate delta g and Kp for the following equilibrium reaction. Keep getting 7.2E-81 and the answer is 4.5E-81 Why?

    asked by C on April 14, 2015
  73. Physical science

    Explain why an endothermic reaction might cause a drop in temperature.

    asked by Emily on March 22, 2017
  74. chemistry 30

    Calculate the enthalpy of reaction for the combustion of ethene.

    asked by . on March 9, 2015
  75. HINDS CC

    HOW MANY GRAMS OF N2O ARE FORMED IF 0.46 OF NH4NO3 IS USED IN THE REACTION

    asked by kINA on February 9, 2012
  76. Science

    how is energy produced during a nuclear fusion reaction?

    asked by Suzy on June 1, 2014
  77. Huck fin

    If you have read Huckleberry Finn before, what was your initial reaction to it?

    asked by Jordan on January 20, 2012
  78. organic chemistry

    how do you increase the yield of triphenylmethanol in a grignard reaction?

    asked by Rachel on March 8, 2010
  79. chem

    Why do we have to remove air bubbles in a chemical reaction?

    asked by sue on October 27, 2009
  80. chemistry DR BOB

    A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu2+ salt and the other half-cell with a Cd bar in the same volume of a 1.00 M Cd2+ salt. Report your answers to the correct number of significant figures. a)Find E degree cell, delta G degree ,

    asked by Patrick on November 28, 2015
  81. Chemistry 12

    15. The concentration of hydroxide ions in a solution of nitric acid 0.2 M is: a. 2 x 10-14 M b. 5 x 10-14 M c. 5 x 10-7 M d. 2 x 10-1 M 16. Aqueous solutions of strong acids and strong bases: a. are good electricity conductors b. make litmus paper become

    asked by Need Help on December 3, 2012
  82. Spanish

    Can someone check my answers to this? I'm really confused on these practice problems. Thanks! Directions: Using informal, formal, plural and nosotros commands (use Dop's/Iop's if needed) to correctly answer the questions. The names in parathenisis are what

    asked by Sophia on January 31, 2015
  83. Chemistry Dr Bob

    A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu2+ salt and the other half-cell with a Cd bar in the same volume of a 1.00 M Cd2+ salt. Report your answers to the correct number of significant figures. a)Find E degree cell, delta G degree ,

    asked by Patrick on November 29, 2015
  84. Chemistry Dr BOB

    A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu2+ salt and the other half-cell with a Cd bar in the same volume of a 1.00 M Cd2+ salt. Report your answers to the correct number of significant figures. a)Find E degree cell, delta G degree ,

    asked by Patrick on November 29, 2015
  85. algebra

    ------Suppose someone opens the valve on a large water tank so that water drains out. Choose a starting volume of water in the tank (from 100 to 500 gallons), and choose how much water drains out each day (from 2 to 5 gallons). Write the equation that

    asked by Olive on October 6, 2013
  86. Algebra

    Need help with two questions. I've been stuck on them for a while now. 1) Find a general form of an equation of the line through the point A that satisfies the given condition. A(−2, 5) slope 3/4 2)Find a general form of an equation of the line through

    asked by Jim on February 25, 2013
  87. Chemistry

    Hi! So, I thought I was very comfortable with distinguishing among Arrhenius, Bronsted-Lowry, and Lewis acids and bases. But then, I answered this question wrong and am looking for help because I'm not sure if my "second choice" answer is correct. The

    asked by JL on April 24, 2010
  88. Chemistry

    42. Tell the function of the moderator and control rods in a nuclear reactor. I found this answer on google..is it correct? The function of the moderator is to slow down the neutrons produced by fission to greatly increase the probably that they will go on

    asked by mysterychicken on October 30, 2010
  89. Algebra 1

    1) Find the possible values of a, if the distance between the points is 5, and the coordinates are (1, 1) and (4, a). I don't know how to solve this one. 2) in a right triangle the length of the hypotenuse is 14 and the length b of one of the legs is 8.

    asked by Eri on May 31, 2013
  90. Chemistry

    Which of the following reactions is exothermic? 1. Na(s) --> Na(g) 2. Na(g) --> Na+ + e- 3. Cl2(g) --> 2Cl(g) 4. Cl(g) + e- --> Cl-1 My guess is 4, but I'm not sure Here is what you do. For 1, do we think it will take energy to change Na as a solid to Na

    asked by Fiona on April 30, 2007
  91. chemistry

    Hydrogen gas can produced by the reaction between metallic aluminum and aqueous hydrochloric acid 2Al+6HCl----2AlCl3+3H2 Hydrogen gas produced by this reaction is typically collected via water displacement, during which time the hydrogen gas becomes

    asked by shadow on November 19, 2013
  92. Chemistry

    A 100 L reaction container is charged with 0.724 mol of NOBr, which decomposes at a certain temperature** (say between 100 and 150 oC) according to the following reaction: NOBr(g) ↔ NO(g) + 0.5Br2(g) At equilibrium the bromine concentration is 1.82x10-3

    asked by Anonymous on February 20, 2013
  93. chemistry - Dr.Bob222 please help

    Hi Everyone, Anyone want to try giving these a shot? The right electrode in a cell is a piece of copper immersed in a 1.00 L solution of 0.0701 F copper sulfate. The left electrode is a galvanized nail (i.e., an iron nail that is completely coated with a

    asked by ajones51 on November 7, 2006
  94. Chemistry

    1. Which of the following is one way to prevent the corrosion of iron? A. Paint exposed iron parts with protective paint. B. Protect the iron from polluted air. C. Add carbon to the iron. D. Let the iron develop a natural coat of carbonate. 2. The source

    asked by StarBuddy on October 3, 2013
  95. Physics

    Physics question on identify the reaction? I am having trouble with the question a, b, and c in this physics problem: One or more external forces are exerted on each object enclosed in a dashed box shown in the figure below. Identify the reaction to each

    asked by Lin on February 27, 2011
  96. Chemstry

    I just copied this because i have a couple more questions on this part.... Sulfuric acid/ Lead Battery: -the electrodes for the battery are composed of Pb(s), PbO2, and/or PbSO4. What are the half reaction occuring at each electrode? include electrolysis

    asked by Sara on April 28, 2008
  97. Math

    Find the product 8 1/3 x 3/5 in simplest form Find the product 5 1/2 x 3 1/3 in simplest form Use distributive property to find the product 4 2/5 x 10

    asked by Heather on January 28, 2015
  98. chemistry

    Hey...how r u guys..thanks for helping me on my previous questions...can u help me solve two questions and check one? Thanks, all the questions are related to the info given: In some industrial processes, sodium chromate is added to water coolants. When

    asked by David on June 18, 2006
  99. English

    1. My hobby is internet games and paper folding. 2. My hobbies are internet games and paper folding. ----------- Which one is grammatical? 3. My hobby is exchanging text messages on Kakao Talk on my smart phone. 4. My hobby is talking with my friends on

    asked by rfvv on March 23, 2016
  100. Spanish

    This is my assignment: Imagine you are babysitting your little brother. Write a total of 5 Spanish sentences using tú commands telling your little brother what to do. Write 3 sentences using regular verbs. Write 2 sentences using irregular verbs. You can

    asked by Jessie on May 16, 2014