Chemistry · Laws of chemical combination, Atomic and molecular masses
of metal carbonate on thermal decomposition gave 8 g of metallic oxide and of ca
\( 16.8 \mathrm{g} \) of metal carbonate on thermal decomposition gave 8 g of metallic oxide and \( 8.8 \mathrm{g} \) of carbon dioxide. They follow:
- A. Law of constant proportion
- B. Law of multiple proportion
- C. Law of conservation of mass
- D. None of the above
Step-by-step solution
The total mass of reactants (16.8 g metal carbonate) equals the total mass of products (8 g metallic oxide + 8.8 g carbon dioxide = 16.8 g). This demonstrates the law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction.
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