New Mexico NM-ASR Science Grade 8 Practice Questions - New Mexico Assessment Of Science Readiness - Science, Grade 8 Exam

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When steel wool (iron) rusts, it combines with oxygen from the air to form iron oxide. If 10 grams of iron produces 14.3 grams of iron oxide, what mass of oxygen combined with the iron?

4.3 grams 24.3 grams 10 grams 14.3 grams

Correct Answer:

4.3 grams

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