Essential Chemistry for IGCSE - Formulae And Equations (Section 4 - No. 23)
Which of the following represents a balanced chemical equation?
H2 + O2 → H2O
2H2 + O2 → 2H2O
H + O → H2O
H2 + O → H2O2
Explanation
A balanced equation has the same number of each type of atom on both sides.
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