Question

Exceptions for the law of conservation of mass.

Answer 1

The law of conservation of mass states that the mass of a closed system will remain constant in a chemical reaction. In other words, mass can neither be created nor destroyed in a chemical reaction. This law was first formulated by Antoine Laurent Lavoisier in 1789. 
For example: When 100g of mercuric oxide is heated, 92.6 g of mercury and 7.4 g of oxygen are obtained as products.
i.e. HgO→ Hg + O2 
In this case mass of reactant =100g
Mass of products = Mass of Hg + Mass of O2 = 92.6 + 7.4 = 100g
Thus, we obtain Mass of product = Mass of reactants
This verifies the law of conservation of mass.

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Answer 2

Answer:

what is article of distinction on exception to the law of demand?