Essential Chemistry for IGCSE - Formulae And Equations (Section 2 - No. 30)
What is the formula of the compound formed by magnesium and oxygen?
MgO2
Mg2O
MgO
Mg2O2
Explanation
The formula for magnesium oxide is MgO. Magnesium has a valency of 2 and oxygen has a valency of 2, so the simplest ratio is 1:1.
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