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CHS Chemistry
Chapter 11 Review: Equations
Mr. Downs and Mr. Nelson
Please do all of your work on a separate sheet of paper.
1) Balance each of the following chemical reactions.
a) K + FeCl3  Fe + KCl
d)
C2H5OH + O2 
CO2 +
H2O
b) NaBr  Na +
Br2
e)
Al +
O2 
Al2O3
c) Pb(NO3)2 + KI  PbI2 + KNO3 (f) Sb2S3 + Na2S  NaSbS2
2) For each chemical reaction listed above, identify it as either combination, decomposition, singlereplacement, double-replacement, or combustion.
3) Write a complete balanced reaction for each of the following combination reactions.
a) MgO + SO3 
c) CaO + H2O 
e) Cl2 + Na 
b) Li +
O2 
d) CaO + CO2 
f)
Al + Cl2 
4) Write a complete balanced reaction for each of the following decomposition reactions.
a) H2CO3 
c) H2O2 
e)
CaCO3 
b) HgO 
d) NH4OH 
e)
Ca(HCO3)2 
5) Write a complete balanced reaction for each of the following single-replacement reactions.
a) Ca + AlPO4 
c) K + H2O 
e)
Na + ZnCl2
b) Ni + Cu(NO3)2 
d) Fe + Na2Cr2O7 
f)
Zn + H2O 
6) Write a complete balanced reaction for each of the following double-replacement reactions.
a) HNO3 + ZnO 
c) ZnCl2 + AgCH3COO  e)
Ba(OH)2 + HClO3 
b) BaCl2 + H2SO4 
d) FeCl3 + AgNO3 
f)
KOH + HCl 
7) Write a complete balanced reaction for each of the following combustion reactions.
a) C2H4 + O2 
c) C5H11OH + O2 
e)
CH3COOH + O2 
b) C3H6O + O2 
d) CH3OCH3 + O2 
f)
C15H32 + O2 
8) Write balanced Net Ionic Equations for the following:
a) FeCl3 (aq) + AgNO3 (aq)  AgCl(s) + Fe(NO3)3(aq)
b) Ba(OH)2 (aq) + HClO3 (aq)  H2O (l) + Ba(ClO3)2(aq)
9) Balance each of the following chemical reactions.
a) Ca(CHO3)2  CaCO3 + H2O + CO2
b) Ba(OH)2 + HNO3  Ba(NO3)2 + H2O
10) For each chemical reaction listed in problem 8 above, identify as either combination, decomposition,
single-replacement, double-replacement, or combustion.
11) Correct the mistakes in the following skeleton equations and balance them.
a) 2Be + H2PO4  Be2PO4 + H2
b) Sn + AlCl3

Al + SnCl3
c) Cu + H2Cl
 CuH2 + Cl
d) Cl2
+
NaI2 
I2 +
NaCl2
e) NH3

N +
H3
MOLE REVIEW (Ch 10)
12) Find the molar mass for each of the following compounds.
a) BaSO4
b) Fe2(C2O4)
13) How many moles are found in 83.3 grams of CaI2?
14) How many grams are found in 8.35 moles of aluminum cyanide?
15) How many NH4NO3 molecules are needed to have a mass of 50.50 g?
16) How many carbon atoms are in 47.6 grams of Al2(CO3)3?
17) How many liters would 119 grams of hydrogen gas (what’s that formula?) occupy at STP?
18) What is the mass of 39.8 L of NH3 gas at STP?
19) Calculate the percent composition of (NH4)2S2O3.
20) Calculate the mass of Carbon found in a 355.4-gram sample of GLUCOSE.