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What is the oxidation half-reaction for 2Mg + O2 + 2Mgo?
A. O2 + 4e + 202-
B. 202- → 02 + 4e
C. Mg2+ + 2e → Mg
O D. Mg → Mg2+ + 2e

Respuesta :

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Answer:

OPTION C is correct

When magnesium burns, it combines with oxygen (O2) from the air to form magnesium oxide (MgO) according to the following equation: 2Mg(s) + O2(g) → 2MgO(s) Magnesium oxide is an ionic compound containing Mg2+ and O2− ions whereas Mg(s) and O2(g) are elements with no charges.

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