Question

what is the law of consrvation of matter
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Answer 1

Here's your answer....

The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity can neither be added nor be removed.

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Answer 2

Answer:

hey mate here is your answer......

Law of Conservation of Mass

According to this law, during any physical or chemical change, the total mass of the products remains equal to the total mass of the reactants.

HgO(s)100 gMercuric oxide→Hg(l)Mercury92.6 g+O2(g)Oxygen7.4 g(5.1.1)

(5.1.1)HgO(s)⏟100 g⏞Mercuric oxide→Hg(l)⏞Mercury⏟92.6 g+O2(g)⏞Oxygen⏟7.4 g

The law of conservation of mass is also known as the "law of indestructibility of matter."