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Your unbalanced equation is _Al + _Cr2O3 ----> _Cr + _Al2O3. Multiply aluminum (Al) and chromium (Cr) ratio by 2, so each side has the same amount of each element. As a result, the equation 2Al + Cr2O3 -----> 2Cr + Al2O3 is balanced. This is a single replacement reaction.

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10y ago
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12y ago

4 Cr + 3 O2 = 2 Cr2O3

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11y ago

Fe2+CO2

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Q: What is the balanced equation for Fe2 plus O3 plus C equals CO2 plus Fe?
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