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Atoms and Molecules
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12/11/2021 4:22 pm
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State the law of conservation of mass. Give one example to illustrate this law.
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12/11/2021 4:24 pm
Antonie Lavoisier proposed the Law of conservation of mass which states that ‘Mass can be neither created nor destroyed’ so in a chemical reaction, the total mass of reactants must be equal to the total mass of products.
For example: 100gs of calcium carbonate decomposes to produce 56gms of calcium oxide and 44gms of carbon dioxide
Mass of reactant = 100gm
Mass of Product = 56 + 44gm = 100gm
Since mass of the reactant is equal to the mass of the product, there is no change in the chemical reaction.