How many grams of chlorine gas are needed to make 117 grams of sodium chloride? Given the reaction: 2Na + Cl2 ? 2NaCl

How many grams of chlorine gas are needed to make 117 grams of sodium chloride?
Given the reaction: 2Na + Cl2 ? 2NaCl 




A) 71.0
B) 142
C) 35.5
D) 48.2
E) not enough information




Answer: A


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