Name: ________________________________________#: ____ Class: ____ Date: ___________________
Exam #6 Review – Chemical Reactions
Balancing Equations, Identifying Types of Reactions, Word Equations, and Predicting Products
Balance the following equations and determine the type of reaction.
1.
LiClO3 →
LiCl +
2.
Na +
3.
H2SO4 +
NaNO2 →
4.
C3H20 +
O2 →
5.
Fe +
O2 →
H2O →
O2
_____________________
Na2O
_____________________
HNO2 +
CO2 +
Fe2O3 +
Na2SO4
H2O
H2
_____________________
_____________________
_____________________
Word Equations
Write out and BALANCE the following word equations. Don’t forget the descriptions – s, l, g, or aq!
6. Chlorine gas reacts with sodium metal to produce aqueous sodium chloride.
7. Solid aluminum hydroxide and aqueous sodium nitrate reacts to form aqueous aluminum nitrate and
aqueous sodium hydroxide.
8. Iron metal and aqueous copper II sulfate reacts to produce aqueous iron II sulfate and copper metal.
Answer the following questions:
9. What is a catalyst?
10. Why can’t subscripts be changed in chemical formulas?
11. What law determines that chemical equations must be balanced? What does this law say?
12. What is a precipitate?
13. What is a reactant? What is a product?
14. What is malleable? What is ductile?
Single Replacement Reactions
Determine if the reaction occurs (use Activity Series). If the reaction doesn’t occur, write NO RXN. If the
reaction does occur, predict products.
15. Iron + lead II nitrate →
(Fe = +3)
16. Zinc + silver nitrate →
(Zn = +2)
17. Copper + aluminum sulfate →
(Cu = +1)
18. Iron + copper II sulfate →
(Fe = +3)
19. Copper + iron II sulfate →
(Cu = +1)
Double Replacement Reactions
Predict products and circle the precipitate formed (if any). Use the Solubility Chart.
20. Barium hydroxide + iron III chloride →
21. Copper II bromide + aluminum chloride →
22. Calcium acetate + sodium carbonate →
23. Calcium nitrate + lithium chloride →