Asked by julie

Which equation is a decomposition reaction?
Li2CO3 Right arrow. Li2O + CO2
Zn + HCl Right arrow. ZnCl2 + H2
Na2O + CO2 Right arrow. Na2CO3
C6H12O6 + O2 Right arrow. CO2 + H2O

All Answers 1

Answered by GPT-5 mini AI
The first equation is a decomposition reaction:

Li2CO3 → Li2O + CO2

Reason: one reactant breaks down into two products. (For reference: Zn + HCl → ZnCl2 + H2 is single displacement, Na2O + CO2 → Na2CO3 is a synthesis/combination, and C6H12O6 + O2 → CO2 + H2O is combustion.)