The law of conservation of matter states that during a chemical reaction, the amount of matter
a) increases.
b) decreases.
c) disappears.
d) stays the same.

Option (D) is the correct answer.

Explanation:

Law of conservation of matter states that mass of an object never changes with time. This means that during a chemical reaction mass of reactants remains the same even after the formation of products.

Thus, we can conclude that the law of conservation of matter states that during a chemical reaction, the amount of matter stays the same.

According to Lavoisier, in a closed system, the total mass of the substance before the reaction will be the same as the total mass of the substances produced by the reaction.

substance mass of reagent = mass of product substance

Lavoisier experimented by reacting mercury and oxygen to the closed space to produce mercury oxide

And when heated, this mercury oxide will produce the same amount of oxygen and oxygen in the initial conditions

From here, he finally put forward the conservation law of the masses, namely:

In a closed system, the total mass before the reaction will be a total mass reaction.

In general, the reaction takes place in the open air. If the reaction results from combustion, the mass of reaction will be smaller than the original mass. Or if the reaction binds to a larger than the environment then the reaction will be greater than the original mass.

For example, in a paper combustion reaction is a mass of paper that is burned because there is a gas released into the water

Law of conservation of mass

application of mass conservation law link

the law of conservation of matter

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Keywords: mass, closed system, Lavoisier, Law of conservation of mass

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