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2012 Chapter 8 Review Sheet
Test is Monday, May 14th day 1
1. Identify the following types of chemical reactions:
a) CH4 (g) + 2 O2(g)
CO2(g) + 2 H2O(g)
b) Mg(s) + F2(g)
c) Zn(s) + 2 HCl(aq)
ZnCl2(aq) + H2(g)
d) Na(s) + H2O(l)
NaOH(aq) + H2(g)
e) Mg(OH)2(aq) + 2HCl(aq)
MgCl2(aq) + H2O(l)
2 NI3  N2 + 3 I2
2. Balance the following reactions:
Br2 --->
C2H2 +
O2 --->
H2O2 --->
K2O +
CO2 +
Fe2O3 +
CO2 +
H2O +
H2O --->
H2O --->
CO -->
H2 O
C6H12O6 +
Fe +
The following equations may or may NOT be incorrect in some way. Identify and correct each
error, if one is present, then balance each equation.
a) Li + O2  LiO2
NaI + Cl2  NaCl + I
AgNO3 + CaCl2  Ca(NO3) + AgCl2
d) 3 Mg + 2 FeBr3  Fe2Mg3 + 3 Br2
e) N + H  NH3
f) NaBr + CaF2 --> NaCa + FBr
AlBr3 + K2SO4  K2Br3 + AlSO4
Write the following English sentences into correct BALANCED chemical equations WITH states
of matter indicated!
a) Hydrogen gas and nitrogen monoxide gas react to form water vapor and nitrogen gas.
b) Sodium phosphate aqueous solution and calcium chloride aqueous solution combine to form
solid calcium phosphate and aqueous sodium chloride.
c) Aluminum bromide solution and chlorine gas react to form aluminum chloride solution and
bromine gas.
d) Zinc metal and lead (II) nitrate solution react to form zinc (II) nitrate solution and solid
lead. According to the activity series, does this reaction actually take place?
Why did the zinc dissolve in hydrochloric acid in the penny demonstration, but not the copper?
Write a balanced equation if a reaction happens. Otherwise, write “no reaction.”
a. Lead is placed into an iron (III) nitrate solution.
b. Magnesium is dipped into a nickel (II) chloride solution.
Predict the products and their states of matter according to solubility rules, and write the
balanced equation, total ionic, and net ionic equation for the following:
Aqueous calcium chloride and aqueous potassium sulfate combine to form…………….
If an ionic compound dissolves in water, it is said to be ________________ and gets the
designation of ______________ state of matter in a chemical equation. If an ionic compound does
NOT dissolve in water, it is said to be _________________ and will get the designation of
____________________ state of matter in a chemical equation.