1. Chemistry

    Balance the following redox reaction in basic solution. H2(g)+Fe3+(aq) ---> H2O(l)+Fe2+(aq)
  2. Chemistry

    What is the net ionic equation, including phases, for the reaction of AgNO3(aq) with K2SO3(aq)
  3. Chemistry

    write the reaction equation for the formation of CN2H2 (s) from the elements in their standard state.
  4. chemistry

    Predict the products of the chemical reaction aluminum + iron(III) oxide
  5. College Chemistry

    The eqm. Constant for a reaction is 2.48 at 25°C. what is the value of ΔG° (kJ) at this temperature? (R=8.314 J/k mol)
  6. Chemistry

    Suppose that 30 mL of 0.5 M CsOH and 55 mL of 0.1 M NaHS are mixed. What is the K for the dominant equilibrium in terms of Ka's, Kb's, Kw etc.? Ka of HS- 1/Ka of HS- Kb of OH- 1/Kb of OH- Kb of S-2 1/Kb of S-2 Kw 1/Kw There is no reaction.
  7. chemistry

    should magnesium metal be stored on the same shelf as copper chloride (redox reaction)
  8. chemistry

    how many molecules of Xef6 are formed from 12.9L at 298K and 2.6atm according to the following reaction. assume excess is Xe
  9. Chemistry

    Find delta G knot for the following reaction: 2Ch3OH(l) + 3O2(g) --> 2CO2(g) + 4H2O(g)
  10. chemistry

    What are the the missing reactants for the double-displacement reaction that produces PF5 and AsCl3 ?
  11. Chemistry

    Calculate ΔHºrxn for the reaction 3 O2(g) ==> 2 O3(g) This is the information I am given: 2H2S(g) + SO2g) ==> 3S(s) + 2H2O(l)
  12. Chemistry

    Calculate ΔGo (in J) for 2 moles of electron(s) in each half-reaction and a standard potential of 0.57 V.
  13. Science

    Why is the formation of iron hydroxide, Fe(OH)2, from Fe2+ and OH- not considered an oxidation-reduction reaction?
  14. Chemistry

    Calculate Keq for 2 moles of electron(s) in each half-reaction and a standard potential of 0.55 V.
  15. chemistry

    Suggest a type of reaction and the conditions required to breakdown polyamides into their monomers.
  16. chemistry

    How do i find the change in the moles gas for a reaction? example MgCO3 = MgO +CO2
  17. College Chemistry

    The eqm. Constant for a reaction is 2.48 at 25°C. what is the value of ΔG° (kJ) at this temperature? (R=8.314 J/k mol)
  18. chemistry

    Write a balanced equation for the reaction between perchloric acid and lithium carbonate.
  19. Chemistry

    need help balancing the following. redox reaction in acidic solution. Clo3-+Cl->>Cl2+ClO2
  20. kassie

    What is the major product of the reaction between methanol and (2R,3S)-2-bromo-3-methylpentane at room temperature?
  21. Chemistry

    total ionic equation for the reaction between hydrochloric acid and potassium hydroxide?KI(aq)A. K+ + I- B. K2+ + I2- C. K+(aq) + I-(aq) D. K2+(aq) + I2-(aq)
  22. Chemistry

    Write the equilibrium constant expression for the reaction: 2NO +2H2 =N2+2H2O Kc=?
  23. apchemistry

    thank you for your help before---also, what can i react with BaO to get some noticable consequence---how can i show that what MgO was involved in the reaction?
  24. College Chemistry

    The eqm. Constant for a reaction is 2.48 at 25°C. what is the value of ΔG° (kJ) at this temperature? (R=8.314 J/k mol)
  25. chem-carbs

    D-ribose is treated with a mild oxidizing agent. What is the product of this reaction?
  26. chemistry

    Raising the temperature of a reacting system increases the rate of the reaction, but does NOT increase the:
  27. reactions

    if you have 66.6g NH3 how many grams of F2 are required for a complete reaction? PLEASE SHOW ALL WORK AND/OR STEPS!!!!
  28. Chemistry

    The reaction rate triples when the temperature increases from 15 to 35 degree C. What is the activation energy?
  29. Chemistry

    The following reaction has a Delta G value of 42.6 kJ/mol at 25oC: HB(aq) +H2O(l) --> H3O+(aq) +B-(aq) Calculate Ka for the acid HB.
  30. chemistry

    __NH3(g) + __ O2(g) → __ N2(g) + __ H2O(g) When the reaction above is completely balanced, the coefficient for NH3 will be (a) 2. (b) 3. (c) 4. (d) 6.
  31. chemistry

    The reaction SO2 + 1/2O2 -->SO3 has kp equal to 6.55 at 627C. what is the value of kc at this temperature? how do you set this up?
  32. science

    which of the following does not affect reaction rate balancin, temperature surface area or concentration?
  33. Chemistry

    Write a balanced chemical equation for single eisplacement reaction. Al+H2SO4
  34. Chemistry please help!

    Calculate (triangle)H for the following gas-phase reaction: 2 H-C (3dashes) C-H + 5 O=O --> 4 O=C=O = 2 H-O-H -Using bond energies
  35. chemistry

    At 25C, Kc= 3.7x10^9 for the reaction CO(g) + Cl2(g) equilibrium with COCl2(g) Calculate the Kp at this temperature.
  36. help!

    2cr(s) + SnCL4(aq) --> can this reaction occur if so write the balanced equation if it doesnt explain why
  37. Chemistry

    The combustion of 1 mole of CO according to the reaction CO(g) + ½O2(g) → CO2(g) + 67.6 kcal gives off how much heat?
  38. Chemistry

    Write an equation for the reaction that takes place when LiOH is added to water.
  39. science

    how to make and balance steps of reaction oF hno3 and cu by partial equation method
  40. Chemistry

    At what temperature will the rate constant for the reaction have the value 6.5×10−3 M/s? (Assume k = 5.4 * 10^-4 M/s-1 at 599K and k = 2.8 * 10^-2 M/s at 683K .)
  41. chemistry

    Balance the following redox reaction by inserting the appropriate coefficients. H^+ +CrO4^2- +NO 2^- =Cr^3+ +H2O+NO3^-
  42. Analytical chemistry

    What is the reaction & calculation when KIO3 mixed with KI, HCl by titration with Na2S2O3?
  43. Chemistry

    How do I balance this chemical reaction? __K + __CaBr2 → __KBr + __Ca
  44. chem

    Explain clearly why changes in base concentration do not affect the observed reaction rate of an E1 elimination.
  45. chemistry

    how many grams of Zn metal would you use to prepare 6.8g of zinc chloride according the reaction: Zn(s)+2HCl(aq)-> ZnCl2(aq)+H2(g)
  46. 7th grade chemistry

    how is potassium sulfate prepared?explain with chemical reaction.
  47. chemistry

    how many grams of Zn metal would you use to prepare 6.8g of zinc chloride according the reaction: Zn(s)+2HCl(aq)-> ZnCl2(aq)+H2(g)
  48. chemistry

    Write a net equation for the reaction between aqueous solutions of Na2HPO4 and H2CO3.
  49. Chemistry help please!

    In the reaction: n2(g) + 3H2(g) -> 2NH3(g), nitrogen is A. electrolyzed B. synthesized C. oxidized D. reduced e. None of these
  50. chemistry

    what type of reaction occurs Fe3O4 + 4H2 → 3Fe + 4H2O
  51. chemistry

    For the reaction 2Na(s) + Cl(g) ¨2NaCl(s), how many grams of NaCl could be produced from 103.0 g of Na and 13.0 L of Cl (at STP)?
  52. chemistry

    When hydrochloric acid is mixed with magnesium and a flame is put in the tube what causes a reaction?

    How does temperature change during a chemical reaction. (Note: it has to be a Endothermic and exothermic reactions) Thanks
  54. Chemistry

    describe an experimental design that you might use to determine the effect of temperature on reaction rate.
  55. Chemistry

    What is the overall order of reaction for the elementary system A+2B=products? a)0 b)1 c)2 d)3 e)5 Can somebody explain this question to me. I don't get it.
  56. physics

    using newtons third law explain what is meant by action and reaction pairs of forcess
  57. Chemistry--help me, please

    how would you separate Fe3+ from Ba2+ in a mixture? Please explain and give an equation for reaction.
  58. chemistry

    Can thermodynamic quantity, delta G, be used to predict the speed of a reaction in a living organism? Why and why not?
  59. Chemistry

    Enter the Net Ionic Equation including phases, for the reaction of AgNO3 and Ba(OH)2.
  60. chemistry

    net ionic equation for reaction between copper carbonate and the hydroiodic acid
  61. Chemistry

    For a given reaction, the rate constant doubles when the temperature is increased from 27 o C to 49 o C. What is the activation energy?
  62. Chemistry

    what is the concentration of I- before the reaction when 35 ml of 0.23M KI is mixed with 15 ml of 0.15M Fe3+ 2I- + 2Fe3+ --> 2Fe2+ + I2
  63. Chemistry

    Complete and balance this equation for a combination reaction. Be + O2 ==> Would it be Be + O2 ==> BeO2 ? or... 2Be + O2 ==> 2BeO ? Why??
  64. Chemistry

    What is the equilibrium constant for the reaction: HCOOH(aq)+ OH (aq) <--> HCOO(aq)+ H2O(l) Ka= 1.7 * 10^-4 Kb for the conjugate base= 4.9 * 10^-11 Thank you!
  65. chemistry

    Suggest a type of reaction and the conditions required to breakdown polyamides into their monomers.
  66. Chemistry

    given: 25.9 kJ + 1/2 H2 + 1/2 I2 => HI how much energy is needed for the reaction of 4.57x10^24 molecules of iodine, I2, with excess hydrogen, H2?
  67. CHEM

    4.69 of S is reaction with oxygen calculate the volume of SO2 in mL formed at 33 degrees C and 1.14 atm
  68. Chemistry

    Calculate the standard potential, E^o, for this reaction from its equilibrium constant at 298K. X(s)+Y^2+(aq)= X^2+(aq)+Y(s) K=8.68E6 E^o=??V
  69. chemistry

    Where can I find the reaction that produces ethyl formate, which is Methanol and Methanoic acid?
  70. Chemistry

    Calculate the value (calories) for the heat of solution. Mass of NaOH: 2.03 g ΔT for reaction A : 8 °C
  71. chemisty

    what type of reaction occurs when potassium metal reacts with fluorine gas?
  72. science

    Calculate the energy released when 1 gram of uranium undergoes fission reaction
  73. organic chem

    i. imgur. com/J6VpPrc. png what is the mechanism (electron pushing) of this reaction?
  74. chemistry

    What is the balanced chemical equation for the reaction used to calculate of delta Hdagrees f of CaCO3(s)?
  75. Chemistry

    Which element is oxidized in this reaction? Fe2O3+ 3CO-(arrow)2Fe+3CO2
  76. chm

    What is the theoretical yield of iron if we begin the reaction with 10.5g of AL (assume an excess of Fe2)3)
  77. Chemistry

    What type of reaction occurs between zinc and Acetic acid? I think it is double replacement but I am not sure. Thank for the help :)
  78. Chemistry

    How do i balance the oxidation-recution reaction Al(s)+MnO4(aq)-->MnO2(s)+Al(OH)4(aq) if it is in a basic solution?
  79. Chemistry

    What are transferred in an oxidation-reduction reaction? atoms*** electrons ions protons
  80. Chemistry

    how much energy is released during the reaction of 2.5l diboron hexahydride with 5.65l chlorine gas?
  81. Chemistry

    Equation: Fe+CuCl2>FeCl2+Cu We put two iron nails into the copper chloride solution:1. mass of empty dry beaker:103.64 2. mass of two iron nails, before reaction:1.20 3. mass of two iron nails after reaction: 1.01 4. mass of beaker and copper
  82. Chemsitry

    Hello. I'm not n=sure about these answers so i was wondering if someone could check them out? 27, A: Which is a stronger acid - sulfuric or carbonic acid? (Answer: Sulfuric acid.) 27, B: Imagine you have two glasses. One contains a solution of carbonic
  83. College Chemistry

    1) The concentration of the aluminum ion in a test solution is 0.10M. Using the Ksp for aluminum hydroxide (3. x 10^-34), calculate the concentration of hydroxide needed to precipitate aluminum hydroxide. From the concentration of the hydroxide, calculate
  84. Biology

    Cellular Respiration and Photosynthesis co-exist as paired metabolic processes. Photosynthesis uses light energy to convert carbon dioxide into glucose, a simple sugar, in two steps, the light dependent and light independent reactions. Oxygen is produced
  85. Chemistry

    I need to write a balanced equation for this problem and am having difficulty doing so. The question is this: use the mole ratio of CuO produced per mole of malachite to write a balanced equation for the malachite decomposition reaction. Assume that CO2 is
  86. chemistry

    A 0.500 L solution of 7.50 M hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. Calcium chloride – a chemical used to control highway dust, strengthen concrete mixes, and add flavor to foods – is produced by the reaction. 2
  87. Chemistry

    Magnesia (MgO(s)) is used for fire brick, crucibles and furnace linings because of its high melting point. It is produced by decomposing magnesite (MgCO3(s)) into at around 1200oC Write a balanced equation for the magensite decomposition being sure to
  88. managerial economicsQ3

    Suppose the inverse market demand equation is P = 80 ¡V 4(QA+QB), where QA is the output of firm A and QB is the output of firm B, and both firms have a constant marginal cost of $4 (fixed costs are zero). (a)Write down the profit equations for firms A
  89. chemistry/check please

    1) Oxygen and boron are in the same period . When they form a compound----- is written first.Phosphorus and arsenic are the same group. When they form a compound------is written first. A) oxygen/phosphorus B)oxygen/arsenic C)boron/phosphorus
  90. Chemistry

    Fill in the Blanks When atoms share electrons to gain the_____ configuration of a noble gas, the bonds formed are______. Atoms lose and gain electrons to form electron configurations like a noble gas (octet in the outer shell). Atoms share electrons to
  91. Chemistry

    4. Use the information above to write net ionic equations for the two reactions that you have observed. 5. For each reaction, write the two half-reactions that make it up and calculate the overall reaction potential by adding the two half-reactions. Each
  92. calculus totally confused

    find a first degree polynomial function p(1) whose value and slope agree with the value and slope of f at x=c. i think you use taylor series for this f(x)=4/sqrt(x), c=1 i'm totally confused on how to do it. i know you find the derivative but how do i get
  93. Psychology

    In her lecture concerning scientific method, Dr. Smith insisted that each of the steps must be used in order to arrive at a scientific finding. She included directions to __________ in her list of necessary components. (Points: 5) form a question and
  94. Chemistry

    C. Consider the reaction 2C3H6 + 9O2 6CO2 + 6H2O. If the rate at which C3H6 is reacting is 0.40 mol liter−1s−1, then the rate at which 1. O2 is reacting is 1.6 mol liter−1s−1 2. CO2 is being formed is 0.40 mol liter−1s−1
  95. math

    1. Gina wants to begin by figuring out how long the corn bed will be. She knows that in her previous two gardens, she was able to plant 2 rows in a 5 foot long space and 5 rows in an 11 foot long space. Find a linear equation for the length of the bed (y)
  96. Chemistry

    1. The standard heat of formation of glucose and lactic acid are -1274.45 and -694.04 kJ/mole, respectively. The molar heat capacity of the two compounds are 218.86 and 127.6 J/(mol)K a.) What is the total heat of reaction at 25 degree Celsius for the
  97. chemistry

    i already posted this question, but im still confused on it. Dinitrogentetraoxide partially decomposes according to the following equilibrium: N2O4 (g) -> 2NO2 (g) <- A 1.00-L flask is charged with 0.400 mol of N2O4. At equilibrium at 373 K, 0.0055
  98. math 4

    at the 6th grade school dance, there are 132 boys, 89 girls, and 14 adults. A. write a ratio of number of boys to girls. b. write the same ration using another form (A:B vs A to B) c. write the ratio of number of boys to number of adults. d. write the same
  99. Chemistry

    1. Molarity is to moles of solute over liters of solution as molality is to A. molar concentration over molal concentration. B. moles of solute over kilograms of solvent. C. molal concentration over molar concentration. D. moles of solute over moles of
  100. math(check answers)

    please check my math ANSWERS 1.which pair of ratio form a proportion? choose all that apply. A. 1/6, 4/20 B. 7/9, 28/36(I PICK THIS) C. 14/18, 21/27 D. 30/80, 8/18 2.which pair of ratios does not form a proportion? A. 3/5, 24/40 B. 30/10, 15/3(I PICK THIS)