Which number completes the balanced chemical equation showing the process of rusting? 4Fe + 3O2 ____Fe2O3 A. 1 B. 2 C. 4 D. 12
Question
Which number completes the balanced chemical equation showing the process of rusting? 4Fe + 3O2 ____Fe2O3 A. 1 B. 2 C. 4 D. 12
Solution
The balanced chemical equation for the process of rusting is: 4Fe + 3O2 2Fe2O3. Therefore, the number that completes the equation is 2. So, the correct answer is B. 2.
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