Essential Chemistry for IGCSE - Chemical Reactions (Section 1 - No. 1)

Which of the following species acts as the oxidizing agent in the following reaction? 2Mg(s) + O2(g) -> 2MgO(s)
Mg
O2
MgO
Mg and O2 are both oxidizing agents

Explanation

Oxygen is the oxidizing agent because it causes Mg to be oxidized.

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