2 Mg + O₂ → 2 MgO
Explanation:
Metallic magnesium (Mg) will react with gaseous oxygen (O₂) to produce solid magnesium oxide (MgO).
2 Mg + O₂ → 2 MgO
To balance the chemical equation the number of atoms of each element entering the reaction have to be equal to the number of atoms of each element leaving the reaction, in order to conserve the mass.
Learn more about:
balancing chemical equations
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