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Bell Work

Bell Work. Write down these equations, then answer the following: __BiCl 5 + __Zn  __ZnCl 2 + __Bi and __Mg(NO 3 ) 2 + __Na 2 SO 4  __NaNO 3 + __MgSO 4 What coefficients are needed to balance the equations?

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Bell Work

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  1. Bell Work Write down these equations, then answer the following: __BiCl5 + __Zn  __ZnCl2 + __Bi and __Mg(NO3)2 + __Na2SO4  __NaNO3 + __MgSO4 • What coefficients are needed to balance the equations? • What type of reaction are they (decomp, synth., combustion, S.R., D.R., or neutralization)? • Would these reactions occur? • Assign oxidation numbers to each compound/element and determine if it is a redox reaction. If so, what was reduced, what was oxidized, what was the reducing agent and what was the oxidizing agent?

  2. Questions?

  3. Reality Check • Determine the Oxidation number for each atom in the following: Fe2O3 H2 Zn+2 Na2O CO3-2 H2Cr2O7 • Prove that the following is a redox reaction by determining the oxidation numbers of each atom. Then identify the reducing agent and oxidizing agent. Cu + 2Ag+ Cu+2 + 2Ag

  4. Choose Your Category Final Question

  5. Random Points 400 points

  6. Will It Happen - 100 This can be used to determine if a single replacement reaction can occur. The Answer is an activity series Back

  7. Will It Happen - 200 • Will the following reaction occur? AlO + Fe The Answer is no because Fe is lower than Al Back

  8. Will It Happen - 300 • Will the following reaction occur? Zn + CuSO4 The Answer is yes because Zn is higher than Cu Back

  9. Random Points 200 points

  10. Will It Happen - 400 • Will the following reaction occur? AgNO3 + (NH4)2SO4  Back The Answer is no Because product would be Ag2SO4 (aq) and NH4NO3 (aq)

  11. Will It Happen - 500 Will the following reaction occur? • Na2CO3 + BaCl2 The Answer is yes because BaCO3 would be a solid. Back

  12. Oxidation Numbers - 100 • The oxidation number of a monatomic ion is equal to _____________________ The Answer is the charge of the ion. Back

  13. Oxidation Numbers - 200 • What is the oxidation number of Cu. The Answer is 0. Back

  14. Random Points 200 points

  15. Oxidation Numbers - 300 • The most electronegative element on the periodic table has an oxidation number of ______________ when in a compound. The Answer is -1. Back

  16. Oxidation Numbers - 400 • Assign oxidation numbers to all the atoms in the following: • HOCl The Answer is +1/-2/+1. Back

  17. Oxidation Numbers - 500 • Assign oxidation numbers to all the atoms in the following: • AlNO3 The Answer is +3/+3/-2. Back

  18. Redox Reactions – 100 • Any chemical change in which one species loses electrons and another species gains electrons is known as this. The Answer is a reduction – oxidation reaction or a redox reaction. Back

  19. Random Points 300 points

  20. Redox Reactions– 200 • This is defined as a chemical change in which electrons are gained, either by the removal of oxygen, the addition of hydrogen, or the addition of electrons. The Answer is reduction. Back

  21. Redox Reactions – 300 • What element was reduced in the following reaction? • 2 HCl + Mg  MgCl2 + H2 The Answer is H (it went from a +1 to a 0). Back

  22. Daily Double

  23. Redox Reactions – 400 (peroxide) -1 +1-1 +1-2 0 +1 -2 • 2Br -1 + H2O2 + 2H3O+ --> Br2 + 4H2O • What element was reduced? • What element was oxidized? • What is the Reducing Agent? • What is the Oxidizing Agent? Oxygen Bromine Br -1 H2O2 Back

  24. Redox Reactions – 500 What is the reducing agent in the following reaction? HNO3 + HBr  NO + Br2 + H2O +1+5-2 +1-1 +2-2 0 +1-2 The Answer is HBr Back

  25. Balancing Chemical Reactions - 100 • These are the only thing that can be used to balance chemical equations. The Answer is coefficients Back

  26. Balancing Chemical Reactions - 200 • Balance the following equation: ___ CaCO3(s)  ___ CaO(s) + ___ CO2(g) The Answer is 1,1,1 Back

  27. Random Points 500 points

  28. Balancing Chemical Reactions - 300 • Balance the following equation: __ CaH2 + __ H2O  __ Ca(OH)2 + __ H2 The Answer is 1,2,1,2 Back

  29. Balancing Chemical Reactions - 400 AlCl3(aq) + Ba(OH)2(aq) --> Al(OH)3(s) + BaCl2(aq) When this equation is correctly balanced, the coefficient of the AlCl3 will be — The Answer is 2 Back

  30. Balancing Chemical Reactions - 500 • Balance the following equation: __ C6H14 + __ O2 __ CO2 + __ H2O The Answer is 2, 19, 12, 14 Back

  31. Reaction Types - 100 • This type of reaction involves a hydrocarbon and oxygen making water and carbon dioxide. The Answer is combustion Back

  32. Reaction Types - 200 • Which reaction type best describes the reaction above? The Answer is single replacement. Back

  33. Random Points 100 points

  34. Reaction Types - 300 2 Fe + 3 Cl2 2 FeCl3 • Which reaction type best describes the reaction above? The Answer is synthesis. Back

  35. Daily Double

  36. Reaction Types - 400 • This type of reaction is shown in the following graphic: The Answer is decomposition Back

  37. Reaction Types - 500 H2SO4 + 2 NaOH  Na2SO4 + 2 H2O • Which reaction type best describes the reaction above? The Answer is neutralization. Back

  38. Random Points 400 points

  39. Note Type Questions - 100 • This type of reaction involves a hydrocarbon and oxygen making water and carbon dioxide. The Answer is combustion Back

  40. Note Type Questions - 200 • If an atom is reduced in a redox reaction, what must happen to another atom in the system? The Answer is it must be oxidized. Back

  41. Note Type Questions - 300 • Chemical equations must be balanced to satisfy ___________________________ (multiple words). The Answer is the law of conservation of mass Back

  42. Note Type Questions - 400 • An element in the activity series can replace any element The Answer is below it on the list. Back

  43. Note Type Questions - 500 • An insoluble solid produced by a chemical reaction in solution is called The Answer is a precipitate. Back

  44. The Final Question • The final question has to deal with: • Balancing Chemical Reactions and Classifying Reactions from words Make your wager

  45. Balance the following equation and classify the type of reaction. • Tetracarbon decahydride and oxygen react together to make carbon dioxide and water.

  46. The Answer • 2 C4H10 + 13 O2  8 CO2 + 10 H2O • combustion

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