Editing CP Stoichiometry Homework Set 4

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Answer the following questions showing all work. Where needed, write the balanced chemical reaction.

1. How many grams of elementary copper did I make if I also made 92.5g CO2 using following chemical equation. 
 
2 <nowiki>CuO</nowiki>(s) + 1 C(s) --> 2 Cu(s) + 1 CO2(g)
 
 
2. How many grams of magnesium iodide do I make if I consumed 371g of elementary iodine by the following chemical equation? 
 
1 Mg(s) + 1 I2(s) --> 1 <nowiki>MgI</nowiki>2(s)
 
 
3. How many grams of ammonia (NH3) do I have if I consumed 42.1g of hydrogen gas? 
 
1 N2(g) + 3 H2(g) --> 2 NH3(g)
 
 
4. How many grams of Iron (III) oxide do I need to make 35.4 grams of aluminum oxide? 
 
1 Fe2O3(s) + 2 Al(s) --> 2 Fe(s) + 1 Al2O3(s)
 
 
Answers: 
 
1) 269g Cu 
2) 406g Mg1I2 
3) 196g NH3 
4) 55.5g Fe2O3

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