1. Chem 1

    Use oxidation states to identify the element that is being oxidized in the following redox reaction: Cu(s)+2 H 2 S O 4 (aq) → CuS O 4 (aq)+S O 2 (g)+2 H 2 O(l)
  2. chemistry

    Balance equation and type of reaction thx! 1. Al(HSO3)3 + O2 ---> 2. Ag + Cu(NO3)2 ---> 3. N2O4 --->
  3. College Chemistry Really Need Help

    THE EQUILIBRIUM CONSTANT FOR A REACTION IS 2.48 AT 25 DEGREES CELSIUS. WHAT IS THE VALUE OF ΔG°(KJ)AT THIS TEMPERATURE? (R=8.314 J/K mol)
  4. physics

    Write down the unit in which reaction rate is measured in this observation? Equation is Zn(s)+I~ZnI
  5. Body Systems/Terminology

    The most serious type of allergic reaction is A. atrial fibrilation B. psoriasis C. anaphylaxis D. lupus
  6. science

    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)?
  7. 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.
  8. chemistry

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

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

    How many liters of Co2(g) can be produced in the reaction of 5.24 L and 2.65 L O2 (g) if all these gases are measure at the temperature and pressure?
  11. chemistry

    write a balanced chemical reaction representing the combustion of hexane? C6H14
  12. COLLEGE CHEMISTRY

    THE EQUILIBRIUM CONSTANT FOR A REACTION IS 2.48 AT 25 DEGREES CELSIUS. WHAT IS THE VALUE OF ΔG°(KJ)AT THIS TEMPERATURE? (R=8.314 J/K mol)
  13. chemistry

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

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

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

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

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

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

    What would be happening in this reaction? 2Ag^+(aq) + CO3^2-(aq) + HNO3 (aq) -----> 2AgNO3(s) + H20(l) + CO2(aq)
  20. CHEMISTRYYY

    What mass of PCl3 forms in the reaction of 70.6 g P4 with 268 g Cl2 ? P4 + 6Cl2 → 4PCl3
  21. Science

    Given the following balanced equation, determine the rate of reaction with respect to [O2]. 2 SO2(g) + O2(g) → 2 SO3(g)
  22. chemistry

    identify the type of reaction that occurs between potassium carbonate and nitric acid
  23. Chemistry

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

    Predict the products of the chemical reaction aluminum + iron(III) oxide
  25. chemistry

    Write a balanced chemical equation for the overall cell reaction represented as: a) Ag(s)|Ag^+(aq)||Sn^4+(aq), Sn^2+(aq)|Pt(s) b) Al(s)|Al^3+(aq)||Cu^2+(aq)|Cu(s) c) Pt(s)|Fe^2+(aq), Fe^3+(aq)||MnO4^-(aq),Mn^2+(aq)|Pt(s)
  26. 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
  27. Chemistry

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

    What role does a catalyst play in a chemical reaction in terms of rate and yield
  29. Chemistry

    Is "a color of solution becoming less intense due to dilution" maybe evidence of chemical reaction or not?
  30. Chemistry

    If the initial concentration of is 0.250 , and the reaction mixture initially contains no products, what are the concentrations of and after 80 ?
  31. org. chem

    what would the oxidation product 1. 2-methylpentnal 2. 3-pentanone My answers: 1. 2-methylpentanoic acid 2. no further reaction I just want to be sure I'm doing this right. Thanks.
  32. chemistry

    Write a balanced chemical equation for the overall cell reaction represented as: a) Ag(s)|Ag^+(aq)||Sn^4+(aq), Sn^2+(aq)|Pt(s) b) Al(s)|Al^3+(aq)||Cu^2+(aq)|Cu(s) c) Pt(s)|Fe^2+(aq), Fe^3+(aq)||MnO4^-(aq),Mn^2+(aq)|Pt(s)
  33. 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?
  34. Chemistry

    P4 + 5O2 P4O10 , 1.5 moles of product were made in 30 seconds. What is the rate of reaction?
  35. Chemistry

    I need to understand, which has more effect in inducing the reaction of silver salts. Intensity or wavelength?
  36. chemistry

    If you submerge a silver teaspoon in copper sulfate solution, what reaction would you expect and why?
  37. chemistry

    write a balanced equation for the reaction between sulfuric acid and calcium metal
  38. chemistry

    how do i write this reaction in cell notation I2(s) + 2MnO4-(aq) + 4H+(aq) → 2IO3-(aq) + 2Mn2+(aq) + 2H2O(l)
  39. science

    Calculate the energy released when 1 gram of uranium undergoes fission reaction
  40. Chemistry

    For the following battery: Cd(s) | CdCl2(aq) || Cl–(aq) | Cl2(l) | C(s) Write the reduction half reaction for the C(s) electrode.
  41. Theology 9 - HELP!!!!!!!!!!!

    What does Bethany Hamilton's reaction reveal about her strength of character? (Soul Surfer)
  42. Science

    Why do all salts crystals have a distinctive cubic shape? And what happens to these atoms during this chemical reaction?
  43. chm

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

    How many grams of calcium carbonate are consumed per 500 g of sulfur (IV) oxide? in what reaction?
  45. chem

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

    Calculate ΔGo (in J) for 2 moles of electron(s) in each half-reaction and a standard potential of 0.44 V
  47. physics

    using newtons third law explain what is meant by action and reaction pairs of forcess
  48. Chemistry

    The value of H° for the reaction below is -482 kJ. Calculate the heat (kJ) released to the surroundings when 12.0 g of CO (g) reacts completely.
  49. Chemistry

    Write a balanced chemical equation for single eisplacement reaction. Al+H2SO4
  50. chemistry

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

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

    What is the theoretical justifaction for the order of reaction rates of a cycloalkane, cycloalkene, and benzene?
  53. Chemistry

    The equilibrium constant for the following reaction is 7.2 x 10-10. What is the [H+] in a solution 1.0 M of this acid? HCN + H2O --> H3O+ + CN-
  54. 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!!!!
  55. 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?
  56. chemistry

    Discuss the spontaneity of an electrochemical reaction in terms of its standard emf (E¨¬cell)
  57. Physical Science

    why does the maximum initial reaction rate cannot be reached at low substrate concentrations.
  58. Chemistry

    For the following reaction, identify the substance being oxidized and reduced CH4 + 2 O2 = CO2 + 2 H2O
  59. 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!
  60. Chemistry

    What is the reducing agent in the following reaction? 2NA + 2H2O 2NaOH + H2 A.Na B.H2O C.NaOH D.H2 I think it is B...?
  61. Chemistry

    in the reaction: Cl2 + 2HBr ----> 2HCl + Br2 identify the reduced specie
  62. chemistry

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

    The most serious type of allergic reaction? a.atrial fibrillation b.psoriasis c.anaphylaxis d.lupus
  64. chemistry

    Fe(S)+ 2 HCl(ag) --> FeCL2(ag)+ H2(g What mass of H2 (g) is produced from the reaction of 5.2 Fe(s) with excess hydrochloric acid?
  65. 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
  66. chemistry

    identify the type of reaction:- FeSO4 + heat ----------> Fe2O3 + SO2 + SO3
  67. chemistry

    Describe three ways you might be able to speed the reaction of CH4+Cl2 -> CH2Cl2+HCl
  68. communication

    What would be the reaction of a reader if the topic sentence in an essay did not coincide with the supporting points
  69. Chemistry

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

    What is Delta H rxn for the following chemical reaction? H2O(l) + CCl4(l)-> COCl2(g) + 2HCl(g)
  71. Biology

    How can you explain that Biurets reaction with amino acids as compared to other protein substances?
  72. Chemistry

    Separate this redox reaction into its component half-reactions. O2 + 2Mg----> 2MgO
  73. Chem

    if 15 g of nitrogen reacts with 15 g of hydrogen, 10.5 g of ammonia is produced. what is the percent yeild of this reaction?
  74. Chemistry

    Write a balanced equation and indicate the reaction ratio for the neutralisation of Na2CO3by HCl.
  75. chemistry

    Separate this redox reaction into its component half-reactions. O2 + 2Zn -->2ZnO
  76. chem

    The value of ΔH° for the reaction below is -1107 kJ: 2Ba (s) + O2 (g) → 2BaO (s) How many kJ of heat are released when 5.75 g of BaO (s) is produced?
  77. Chemistry

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

    Balance the reaction using half reactions under BASIC conditions: Al + CrO4^-2 ---> Al(OH)3 + Cr(OH)3 I'm not sure how to do this question.
  79. chemistry

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

    The most serious type of allergic reaction is A. atrial fibrillation. C. anaphylaxis. B. psoriasis. D. lupus. I think it is (c)
  81. 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.
  82. chemistry

    Calculate the mass of water produced from the reaction of 24.0 g of H2 and 160.0 g of O2. What is the limiting reagent?
  83. science

    What actually happens if we mix the chloroform with hexane? what is the exact reaction between them & is the resulting product ia stable?
  84. chemistry

    Write the reaction equation for calcium carbide producing ethanoic acid
  85. SCIENCE

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

    What is the net ionic equation for the reaction Copper (II) chloride and sodium hydroxide?
  87. Chemistry

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

    Write a net equation for the reaction between aqueous solutions of HBr and NH3.
  89. chemistry

    Write a net equation for the reaction between aqueous solutions of NaHSO4 and NaCN.
  90. chemistry

    Write a net equation for the reaction between aqueous solutions of NaC2H3O2 and H3PO4.
  91. chemistry

    what is the balanced equation for the reaction that takes place between bromine and sodium iodide
  92. chemistry

    Write a net equation for the reaction between aqueous solutions of HClO4 and NaH2PO4.
  93. chemistry

    why is polystyrene cup use rather than a glass beaker to conduct exothermic or endothermic reaction?
  94. chemistry

    Write a net equation for the reaction between aqueous solutions of Na2HPO4 and H2CO3.
  95. PRACTICAL CHEMISTRY

    REDOX balancing reaction Cr2O7 + NO-2 Cr3+ + NO3 (acid medium)
  96. 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)
  97. Chem

    Given: Al3+(aq) + 3e–  Al(s); E° = –1.66 V Cl2(g) + 2e–  2Cl–(aq); E° = 1.36 V What is ∆G° for the following cell reaction? 2AlCl3(aq)  2Al(s) + 3Cl2(g)
  98. chemistry

    Complete and balance this reaction: sulfuric acid reacts with barium chloride
  99. Organic Chemistry

    Some 2-methyl-2-butene may be produced in the reaction as a by-product. Give a mechanism for its production.
  100. Chemistry

    A chemist requires 0.780 mol Na2CO3 for a reaction. How many grams does this correspond to?