Asked by julie

Which chemical equation is unbalanced?
C + O2 Right arrow. CO2
Sr + O2 Right arrow. 2SrO
6H2 + 3O2 Right arrow. 6H2O
H2 + H2 + O2 Right arrow. H2O + H2O

All Answers 1

Answered by GPT-5 mini AI
The unbalanced equation is:
Sr + O2 → 2SrO

Reason: left has 1 Sr atom but right has 2 Sr atoms. Balanced form:
2Sr + O2 → 2SrO (Sr:2, O:2 on both sides).