Essential Chemistry for IGCSE - Formulae And Equations (Section 5 - No. 23)
Which of the following is a correct symbol equation for the reaction of hydrogen and oxygen to make water?
H + O -> H2O
H2 + O -> H2O
H2 + O2 -> H2O
2H2 + O2 -> 2H2O
Explanation
Hydrogen and oxygen react to form water, and it must be balanced correctly.
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