Chemistry · Chemical Reactions
Which of the following chemical equations represents a combustion reaction?
- 1Zn + H2SO4 → ZnSO4 + H2
- 22KClO3 → 2KCl + 3O2
- 3H2 + Cl2 → 2HCl
- 4CH4 + 2O2 → CO2 + 2H2O✓
Correct answer
CH4 + 2O2 → CO2 + 2H2O
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