Question

Is (CACO+CO2=CACO3) IS DOUBLE DISPLACEMENT REACTION?

Answer 1

Answer:

no it is a combination reaction

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Answer 2

Answer:

Yes ,DECOMPOSITION: AB → A + B Examples: 2 H2O → 2 H2 + O2 CaCO3 → CaCO + CO2 Decompositions are generally the opposite (reverse) of combination reactions, and they usually involve oxidation and reduction (but not in the last example).

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