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    Chemistry
    Grade-10
    Easy

    Question

    What are the products of the following decomposition reaction?
    metal carbonate ⟶ ??

    1. Element + element
    2. Metal oxide + water
    3. Metal chloride + oxygen
    4. Metal oxide + carbon dioxide

    hintHint:

    A decomposition reaction can be defined as a chemical reaction in which a single reactant breaks down into two or more products. 

    The correct answer is: Metal oxide + carbon dioxide

      The products of the following decomposition reaction are metal carbonate ⟶ Metal oxide + carbon dioxide
      • A metal carbonate when heated decomposes into a metal oxide and gives carbon dioxide gas. 
      • For example, calcium carbonate decomposes into calcium oxide and carbon dioxide. 

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