1. Chemistry

    Calculate G° for each reaction using G°f values. MnO2(s) + 2 CO(g) Mn(s) + 2 CO2(g)
  2. CHEM

    Calculate G° for each reaction using G°f values. MnO2(s) + 2 CO(g) Mn(s) + 2 CO2(g)
  3. Science

    In the reaction X+Y (R) Z, Z is the A)Substrate B)Product C)Enzyme D)Carbon Molecule
  4. science

    In the reaction X+Y (R) Z, Z is the A)Substrate B)Product C)Enzyme D)Carbon Molecule
  5. Science

    In the reaction X+Y (R) Z, Z is the A)Substrate B)Product C)Enzyme D)Carbon Molecule
  6. chemastrey

    of exhow many grams of no2 can be produced by the reaction of excess o2 with 19.8 of no
  7. chemistry

    what is a double replacement precipitation reaction and limiting reactants
  8. chemistery

    what is the chemical reaction for the equilibrium that the haber process manipulates
  9. Physics

    What is the energy released in the fusion reaction: 2H+2H--> 4He + Q? How do I calculate this?
  10. chemistry

    write the equation for the reaction of mixing 4 ml of 3 M (ho)2so2 with 7 ml of 0.2 M naclo4
  11. Chemistry

    Write the equation for the reaction of mixing 2 ml of 3 M (HO)2SO2 with 9 ml of 0.2 M NaClO4
  12. Chemistry

    Write the equation for the reaction of mixing 2 ml of 3 M (HO)2SO2 with 9 ml of 0.2 M NaClO4
  13. chemistry

    what amount of ethanol is needed for combustion reaction for a 20 oz bottle?
  14. science

    What do scientists mean when they say that action equals reaction?
  15. chemistry

    who was the first scientist to identify a nuclear bombardment reaction?
  16. HINDS CC

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

    calculate the enthalpy change for the reaction n2h4(l) + 02(g) --> n2(g) + 2h20(l)
  18. Chemistry

    2C10H22 + 31O2 = 20Co2 + 22H2O What kind of reaction is this?
  19. chemistry

    Write the expression for Kc and Kp for the reaction PH3BCl3(s) <==> PH3(g) + BCl3(g)
  20. chemistry

    what mass of H2(g) is produced from the reaction of 5.2g Fe(s) with excess hydrochloric acid?
  21. Chemistry

    How do I identify the reducing agent in a reaction of magnesium with oxygen?
  22. chemistry

    When the following reaction is at equilibrium, which of these relationships is always true? 2 O3(g) 3 O2(g) A. [O3]2 = [O2]3 B. Kc[O2]2 = [O3]3 C. [O3] = [O2] D. Kc[O3]2 = [O2]3 E. Kc[O2]3 = [O3]2
  23. Chem

    Is this reaction endothermic or exothermic? Ca(C2H3O2)2(s) = Ca2+(aq) + 2C2H3O2-(aq)
  24. Chemistry

    what type of reaction is AgF + CaCl2 --> AgCL + CaF2 ?
  25. chemistry

    is putting gas in a vehicle a physical or chemical reaction
  26. Chemistry

    N2 + 3H2 --> 2NH3 how many grams of ammonia is produced in the reaction?
  27. chemistry

    How many grams of dichloromethane result from reaction of 1.60 of methane if the yield is 48.8 ?
  28. chemistry

    When 24.2 kg of Fe2O3 react with 14.5 kg of CO and 5.4 kg of Fe are recovered, what is the percent yield for the reaction?
  29. Chemistry

    Need type of reaction and balance of (NH4)2S+CuSO4=
  30. analytical chemistry

    chemical equilibria involved in precipitation reaction
  31. Chemistry

    Calculate Kp at 298K for the reaction SO2 + NO2--->SO3 + NO
  32. Chemistry

    How can you determine the oxidizing agent in a reaction of iron with chlorine?
  33. Chemistry

    Determine the enthalpy of the following reaction. 2M(s) + 3Cl2(g) ---> 2MCl3(s)
  34. Chemistry

    Calculate delta G of a reaction with equilibrium constant, K= 9.5 x 10^5 at 25 degrees C
  35. chemistry

    write a balanced equation for the chain reaction AL2O3
  36. chem 2

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

    what is the chemical reaction of camphor and coca cola drink
  38. Chemistry

    For the reaction Zn(OH)2(s)+4CN-(aq)->Zn(CN)4 2-(aq)+2OH-(aq) find [CN-] when 8.5 g of Zn(OH)2 are dissolved in 1.00 L of solution.
  39. bio

    How is the oxygen production in 30 seconds related to the rate of the reaction?
  40. bio

    How is the oxygen production in 30 seconds related to the rate of the reaction?
  41. Chemistry

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

    Classify reaction as addition, displacement, or decomposition: Al(s)+NaOH(aq)=Al(OH)3(s)+Na+(aq)
  43. science

    explain the Eutectic and Eutectoid reaction in cast irons
  44. Chemistry

    In the. Reaction (Na2co3+CaCl2-->2NaCl+caco3) The precipitate is :
  45. CHEMISTRY

    WHICH IS LIMITING REAGENT IN FOLLOEING REACTION 3Mg +N2 =Mg3N2
  46. Science

    how is energy produced during a nuclear fusion reaction?
  47. chemistry

    C+HNO3=H2CO3+H2O+NO2 which type of reaction is it.
  48. biology

    does dark reaction helps in transmittance and conservation of energy
  49. chemistry

    ferus amonium sulphate reaction with sulphuric acid
  50. Science

    What Type of Simple Chemical Reaction Occurs in Fireworks?
  51. O-Chem

    What stereoisomers would be created by the reaction of (Z)- stilbene with bromine?
  52. Chemistry

    How many atoms of iron will be produced from the reaction of 50 g of hematite and 25 g of carbon?
  53. PLEASE CHEM

    balance the redox reaction NO2^- + Ag^+ = NO3^- + Ag
  54. chemistry

    For the reaction: 2SO2(g) + O2(g) = 2SO3(g) conducted at 25°C and 1 atm. Calculate H°, S°, G°
  55. chemistry

    What is the equation that represents the reaction of esterification of crystal violet? Thanks
  56. Science

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

    which of the following undergoes change during a chemical reaction
  58. science

    the spectator ions of all substance that are soluble of the reaction
  59. Chemistry

    Which of the following shows the correct dissolution reaction for BaCl2?
  60. chemistry

    1. In the reaction 2Ca(s) + O2(g) → 2CaO(s), which species is oxidized?
  61. Chemistry

    how can magnesium chloride be lost in a reaction and how can we ensure that it is pure?
  62. Chemistry

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

    what mass of excess reactant remians when the reaction is completed?
  64. General chemistry i

    Is this a redox reaction? 4Cr+3O2 -> 2Cr2O3
  65. Chemistry

    what type of reaction occurs in Al+SnCl4 ? and what is the balanced equation
  66. science

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

    How do i figure out if 2NO2 -> N2O4 is a redox reaction
  68. chem

    what mass of Cl2 is produced from the reaction of 665 g of Hal
  69. Science

    What happens to energy and matter during a chemical reaction?
  70. Chemistry

    Using benzene as an example to illustrate substitution reaction
  71. Chemistry

    How much heat is produced by the complete reaction of 5.29 kg of nitromethane?
  72. chemistry

    How to solve CoCl2+HO2- ------> Co(OH)3+ Cl- by half reaction method
  73. science

    Write an equation to show reaction of pop with water
  74. science

    Torque due to action-reaction force is zero?
  75. chemistry

    When are more products of a reaction available initially than at equilibrium? A. K = 0 B. Q < K C. Q = K D. Q > K
  76. science

    When are more products of a reaction available initially than at equilibrium? A. K = 0 B. Q < K C. Q = K D. Q > K
  77. ap chemistry

    When are more products of a reaction available initially than at equilibrium? A. K = 0 B. Q < K C. Q = K D. Q > K
  78. Chemistry

    When are more products of a reaction available initially than at equilibrium? A. K = 0 B. Q < K C. Q = K D. Q > K
  79. chemistry

    complete the equation for the reaction of the soap with magnesium chloride
  80. Chemistry

    When We Balance Equations In Chemical Reaction,we Are Obeying The Law Of
  81. History

    What was king george's reaction to the boston tea party?
  82. Chemistry

    Writing balanced chemical reaction of K2CO3 (s) and HCl (aq) ???
  83. science

    writing balanced chemical reaction of K2CO3 (s) with HCl (aq)??
  84. Chemistry

    Calculate the amount of H2 produced from the reaction of 4.25 grams Zn and 25 ml of 3.0 M HCL.
  85. Chemistry

    Calculate the amount of H2 produced from the reaction of 4.25 grams Zn and 25 ml of 3.0 M HCL.
  86. chemistry

    How to prove that sodium hydroxide is a base with the help of an equation for the reaction
  87. Chemistry

    Does LiAlH4 perform any kind of a reaction with a triple bond?
  88. Chemistry

    What kind of reaction is it when you put a potato in hydrogen peroxide?
  89. science

    Classify the reaction between zinc and acetic acid.
  90. Science

    Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic?
  91. Chemistry help pls

    DEFINE REDOX REACTION WIT EXANPLE
  92. Chemistry

    C3H8 +________O2 ---------3CO+4H2O . Which is the balance the reaction A. 1 B. 7 C. 5 D.3
  93. Chemistry

    One of the concerns about the use of Freons is that they will migrate to the upper atmosphere, where chlorine atoms can be generated by the following reaction: CCl2F2 --> CF2Cl + Cl Chlorine atoms can act as a catalyst for the destruction of ozone. The Activation energy for...
  94. chemistry

    A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The initial volume was 3.00 and the initial pressure of chlorine was 1.75 . The piston was pushed down to change the volume to 1.00 . Calculate the final pressure of the gas if the ...
  95. Science - Please Look!

    The senses are used to make which of the following? inferences predictions evaluations ((**observations**)) You walk into the kitchen and see a broken egg on the floor. Which of the following is an inference you can make based on this observation? ((**The egg rolled off the ...
  96. AP chem

    A 0.345g sample of anhydrous BeC2O4, which contains an inert impurity, was dissolved in a sufficient water to produce 100ml of solution. A 20.0ml portion of the solution was titrated w/ KMnO4(aq). The balanced equation for the reaction that occurred is as follows: 16H^+(aq) + ...
  97. Chemistry

    At elevated temperatures, SbCl5 gas decomposes into SbCl3 gas and Cl2 gas as shown by the following equation: SbCl5(g)<=> SbCl3(g) + Cl2(g) 1. What is the concentration in moles per liter of SbCl5 in the container before any decomposition occurs? 2. What is the pressure ...
  98. Chemistry

    1. In an equilibrium, A + B ---> C + D; "A" & "B" are mixed in a vessel at temperature "T". The initial concentration of "A" was twice the initial concentration of "B", & after the equilibrium has reached, concentration of "C" was twice the equilibrium concentration of "B...
  99. PHYSICS- SCIENCE

    1. It is believed that in the Archeaneon (2.5-4 billion years ago) the sun’s radiative output was 30% less than it is today. (i) What would the temperature of the sun have been at that time? (ii) At what wavelength would the peak emission from the sun have been? (iii) ...
  100. CHEMISTRY> HELP QUICK! pls

    Use the following thermodynamic data at 298 K to determine the equilibrium constant at this temperature for the reaction of iron in steam to form hydrogen and iron(III) oxide. 2Fe(s) + 3H2O(g) 3H2(g) + Fe2O3(s) Substance Fe(s) H2O(g) H2(g) Fe2O3(s) ÄH°f (kJ/mol) 0 -242 -0 -...
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