Problem: 3.21Indicate whether each reaction is a combination, decomposition, or combustion reaction.K2O(s) + H2O(l) → KOH(aq)

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We are being asked to classify 

K2O(s) + H2O(l) → KOH(aq)


based on the following categories:


  • Combination/Synthesis → multiple reactants combine to form a single productw/o change in oxidation numbers

A + B → AB

  • Decomposition →reactant splits into multiple products with no change in oxidation numbers

AB → A + B

  • Combustion reaction: reaction with oxygen that produces carbon dioxide and water

Hydrocarbon + O2 → CO2 + H2O


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Problem Details

3.21

Indicate whether each reaction is a combination, decomposition, or combustion reaction.

K2O(s) + H2O(l) → KOH(aq)

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