1. 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 1)What coefficients are needed to balance the equations? 2)What type of reaction are they (decomp, synth., combustion, S.R., D.R., or neutralization)? 3)Would these reactions occur? 4)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: Fe 2 O 3 H 2 Zn +2 Na 2 OCO 3 -2 H 2 Cr 2 O 7 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 Will It Happen Oxidation Numbers Redox Reactions Balancing Chemical Reactions Reaction Types Note Type Questions 100 200 300 400 500 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. Back The Answer is an activity series

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

8. Will It Happen - 300 Will the following reaction occur? Zn + CuSO 4  Back The Answer is yes because Zn is higher than Cu

9. Random Points 200 points

10. Will It Happen - 400 Will the following reaction occur? AgNO 3 + (NH 4 ) 2 SO 4  Back The Answer is no Because product would be Ag 2 SO 4 (aq) and NH 4 NO 3 (aq)

11. Will It Happen - 500 Will the following reaction occur? Na 2 CO 3 + BaCl 2  Back The Answer is yes because BaCO 3 would be a solid.

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: AlNO 3 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. Back The Answer is a reduction – oxidation reaction or a redox reaction.

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. Back The Answer is reduction.

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

22. Daily Double

23. Redox Reactions – 400 2Br -1 + H 2 O 2 + 2H 3 O + --> Br 2 + 4H 2 O What element was reduced? What element was oxidized? What is the Reducing Agent? What is the Oxidizing Agent? Back Oxygen Bromine Br -1 H 2 O 2 (peroxide) -1 +1-1+1-20+1 -2

24. Redox Reactions – 500 What is the reducing agent in the following reaction? HNO 3 + HBr  NO + Br 2 + H 2 O Back The Answer is HBr +1+5-2 +1-1+2-2 0 +1-2

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

26. Balancing Chemical Reactions - 200 Balance the following equation: ___ CaCO 3 (s)  ___ CaO(s) + ___ CO 2 (g) Back The Answer is 1,1,1

27. Random Points 500 points

28. Balancing Chemical Reactions - 300 Balance the following equation: __ CaH 2 + __ H 2 O  __ Ca(OH) 2 + __ H 2 Back The Answer is 1,2,1,2

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

30. Balancing Chemical Reactions - 500 Balance the following equation: __ C 6 H 14 + __ O 2  __ CO 2 + __ H 2 O Back The Answer is 2, 19, 12, 14

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

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

33. Random Points 100 points

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

35. Daily Double

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

37. Reaction Types - 500 H 2 SO 4 + 2 NaOH  Na 2 SO 4 + 2 H 2 O Which reaction type best describes the reaction above? Back The Answer is neutralization.

38. Random Points 400 points

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

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

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

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

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

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 C 4 H 10 + 13 O 2  8 CO 2 + 10 H 2 O combustion