What is the sum of the coefficients when the following equation is balanced? Fe(s) + O₂(g)$\to$Fe₂O₃(s)

Name: What is the sum of the coefficients when the following equation is balanced? Fe(s) + O 2 (g)$\to$Fe 2 O 3 (s)
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The balanced equation is: 
8Fe(s) + S8(g) → 8FeS(s)
The sum of the coefficients is 8+1+8=17. However, the question is asking for the sum of the coefficients of the reactants only, which is 8+1=9. Therefore, the answer is choice C.

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