Chemistry · Chemical Reactions and Equations
Among the following options, which balanced chemical equation best describes the reaction between calcium and water?
- 12Ca(s) + 2H2O(l) → 2CaOH(s) + H2(g)
- 2Ca(s) + H2O(l) → CaOH(aq) + H2(g)
- 32Ca(s) + 2H2O(l) → 2CaOH(aq) + H2(g)
- 4Ca(s) + 2H2O(l) → Ca(OH)2(aq) + H2(g)✓
Correct answer
Ca(s) + 2H2O(l) → Ca(OH)2(aq) + H2(g)
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