Extra Practice for Quiz 6 (Answers are at the end.)
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6. Cobalt reacts with hydrochloric acid according to the following equation:
Co +
A. Balance the equation.
B. How many moles of cobalt would be required to consume 0.400 moles HCl?
C. What mass (in mg) of CoCl3 would be produced from 0.0811 g of HCl?
HCl 
CoCl3 +
H2
7. Write a balanced chemical equation to represent the following reaction:
Magnesium chloride reacts with silver nitrate to form silver chloride and magnesium nitrate.
(Silver, Ag, forms a +1 cation.)
How many grams of silver chloride would be produced by 100.0 g of magnesium chloride?
8. Write a balanced chemical equation for the reaction of hydrogen and nitrogen to form ammonia, NH3:
How many grams of nitrogen would be required if you want to synthesize 15.0 kg of ammonia?
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