CHE 105
East Georgia College
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CHE 105 Stoichiometry Answer Key
- Exam (elaborations) • 3 pages • 2022
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1. Write the equation that expresses in acceptable chemical shorthand the following statement: “Iron can 
be made to react with molecular oxygen (O2) to give iron oxide with the formula Fe2O3” 
4Fe + 3O2 2Fe2O3 
2. Balance the following reactions: 
a. Ca(OH)2 + 2HCl CaCl2 + 2H2O 
b. 2AgNO3 + CaCl2 Ca(NO3)2 + 2AgCl 
c. 2Fe2O3 + 3C 4Fe + 3CO3 
d. 2NaHCO3 + H2SO4 Na2SO4 + 2H2O + 2CO2 
e. 2C4H10 + 13O2 8CO2 + 10H2O 
f. Mg(OH)2 + 2HBr MgBr2 + 2H2O 
g. Al2O3 ...
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