Question

Which statement best describes balancing equations and the law of conservation of mass?

Answer 1

Answer:

The number of atoms is the same in the reactants and in the products, and the total mass is the same in the reactants and

in the products- second choice

Answer 2

Answer:

The correct answer is: "The number of atoms is the same in the reactants and in the products, and the total mass is the same in the reactants and  in the products"

Explanation:

The Law of Conservation of Matter is also called the law of conservation of mass or the Law of Lomonósov-Lavoisier. This law postulates that "the mass is not created or destroyed, only transformed." This means that the reagents interact with each other and form new products with physical and chemical properties different from those of the reagents because the atoms of the substances are ordered differently. But the amount of matter or mass before and after a transformation (chemical reaction) is always the same, that is, the quantities of the masses involved in a given reaction must be constant at all times, not changing in their proportions when the reaction ends. In other words, then the mass before the chemical reaction is equal to the mass after the reaction. The exception to the rule is nuclear reactions, in which it is possible to convert mass into energy and vice versa.

An example of this law is the combustion of hydrocarbons, in which the fuel can be seen burning and "disappearing", when in truth it will have been transformed into invisible gases and released energy.

This law is what allows the equations to be balanced or chemical reaction, to maintain the conservation of mass.

So, the correct answer is "The number of atoms is the same in the reactants and in the products, and the total mass is the same in the reactants and  in the products"