Chapter 11 Chemical Reactions Review!. 1. What are the 7 diatomic molecules? H 2, O 2, F 2, Br 2, I 2, N 2, Cl 2 What does it mean to be “diatomic”? HOFBRINCL.

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Presentation transcript:

Chapter 11 Chemical Reactions Review!

1. What are the 7 diatomic molecules? H 2, O 2, F 2, Br 2, I 2, N 2, Cl 2 What does it mean to be “diatomic”? HOFBRINCL

2. Name the type of reaction. CO 2 (g) + CH 4 (g)  C 2 H 4 O 2 (g) Synthesis!

4. Name the type of reaction. CO 2 (g)  C(s) + O 2 (g) Decomposition!

6. Write a chemical reaction, predicting the products for the decomposition of solid Calcium chloride. CaCl 2 (s)  Ca(s) + Cl 2 (g)

8. Complete and balance the following reaction and determine the state of matter of each product. CaSO 4 (aq) + KOH(aq)  CaSO 4 (aq) + 2KOH(aq)  Ca(OH) 2 + K 2 SO 4

9. What is the law of conservation of matter? Matter can neither be created nor destroyed in chemical reactions.

10. Will the mass of the following products in the beaker be more than, less than, or equal to the mass of the reactants? KBr(aq) + AgNO 3 (aq)  KNO 3 (aq) + AgBr(s) Equal!

11. Will the mass of the products in the beaker in the following reaction be more than, less than or equal to the mass of the reactants? KClO 4 (s)  KCl(s) + 2O 2 (g) Less than! (A gas is produced)

How does the law of conservation of matter relate to balancing chemical equations?

13. Balance the following equation. Ca(s) + O 2 (g)  CaO(s) 2Ca(s) + O 2 (g)  2CaO(s)

14. Complete and balance the following reaction and determine the state of matter of each product. Li 3 PO 4 (aq) + AgNO 3(aq)  Li 3 PO 4 (aq) + 3AgNO 3(aq)  Ag 3 PO 4 (s) + 3LiNO 3 (aq)

15. Complete and balance the following equation. Li(s) + H 2 O(l)  2Li(s) + 2H 2 O(l)  2LiOH(aq) + H 2 (g)

16. What type of chemical reaction was the previous reaction? Li(s) + H 2 O(l)  LiOH(aq) + H 2 (g) Single Displacement

17. Balance the following equation. C 2 H 6 (g) + O 2 (g)  CO 2 (g) + H 2 O(l) 2C 2 H 6 (g) +7 O 2 (g)  4CO 2 (g) + 6H 2 O(l)

18. What kind of reaction was the previous chemical reaction? C 2 H 6 (g) + O 2 (g)  CO 2 (g) + H 2 O(l) Combustion

19. What are the five types of chemical reactions you need to know? Single Displacement Double Displacement Combustion Decomposition Synthesis

20. What type of reaction is the reaction below? Zn(NO 3 ) 2 (aq) + Mg(s)  Mg(NO 3 ) 2 (aq) + Zn(s) Single Displacement

21. Will the following reaction proceed under normal conditions? How do you know? NaCl(aq) + Br 2 (g)  ??? No  Bromine is not higher than chlorine on the activity series

22. Complete and balance the following reaction, and determine the state of matter of each product. NH 4 Cl(aq) + Zn(OH) 2 (s)  2NH 4 Cl(aq) + Zn(OH) 2 (s)  ZnCl 2 (aq) + 2NH 4 OH (aq)

23. What type of reaction is the one shown below? Pb(NO 3 ) 2 (aq) + K 2 S(aq)  PbS(s) + 2KNO 3 (aq) Double Displacement

24. Predict the products of the following reaction (Fe has a 2+ charge): Fe(s) + CuSO 4 (aq)  ??? Fe(s) + CuSO 4 (aq)  FeSO 4 (aq) + Cu(s)

25. Predict the products of the following reaction: (Make sure the equation is balanced) Ca(OH) 2 (aq) + H 2 CO 3 (aq)  ??? Ca(OH) 2 (aq) + H 2 CO 3 (aq)  CaCO 3 (s) + 2H 2 O(l)

26. Write a correctly balanced equation for the following reaction: Aluminum carbonate reacting with Calcium chloride Al 2 (CO 3 ) 3 + 3CaCl 2  3CaCO 3 + 2AlCl 3

27. Write a correctly balanced equation for the following reaction: Chlorine gas reacting with nickel (II) iodide Cl 2 + NiI 2  NiCl 2 + I 2

28. Write a correctly balanced equation for the following reaction The decomposition of Aluminum oxide 2Al 2 O 3  4Al + 3O 2

29. Write a correctly balanced equation for the following reaction. Adding solid potassium to Zinc (II) carbonate. 2K + ZnCO 3  K 2 CO 3 + Zn

30. Write a correctly balanced equation for the following reaction. Octane (C 8 H 18 ) reacting with oxygen gas. 2C 8 H O 2  16CO H 2 O

31. Complete and balance the following reaction, and determine the state of matter of each product. SrI 2 (aq) + Pb(NO 3 ) 2 (aq)  SrI 2 (aq) + Pb(NO 3 ) 2 (aq)  Sr(NO 3 ) 2 (aq) + PbI 2 (s)