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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