Iron (lll) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 16.7g of Fe reacts completely with oxygen?
4Fe(s)+3O2(g)--->2Fe2O3(s)
a.12.0g
b.23.9g
c. 47.8g
d.95.6g
Answer: B
Chemistry
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