Question

(a)write law of conservation of mass
write the chemical formula of the following compound
(1) calcium chloride.
(2) copper sulphate​

Answer 1

Answer:

Matter can neither be created nor be destroyed is the law of conservation of mass.

1) CaCl2

2) CuSO4

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Answer 2

Law of Conservation of Mass :-

According to the law of conservation of mass, the mass of the products in a chemical reaction is equal to the mass of the reactants.

Chemical Formula :-

• Calcium Chloride — CaCl₂.

• Copper Sulphate — CuSO₄.

Note :- For making correct chemical formula, you must remember the valencies of the elements.