12. When the magnesium burns in the presence of oxygen, it forms solid magnesium oxide, and...

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Answer 1

Answer #1

12)

The reaction taking place is:

Mg(s) + O2(g) -> MgO(s)

Balance O:

Mg(s) + O2(g) -> 2 MgO(s)

Balance Mg:

2 Mg(s) + O2(g) -> 2 MgO(s)

The reaction is now balanced

Answer: C

Only 1 question at a time please

Answer 2

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