Question

Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products

Answer 1

Answer : The relationship between the mass of the reactants and the mass of the products is that the mass of the reactants should be equal to the mass of the products.

Explanation :

Law of conservation of matter : It states that matter can neither be created nor be destroyed but it can only be transformed from one form to another form.

The balanced chemical reaction always follow the law of conservation of mass.

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

For example :

The given chemical reaction is,

$2H_2+O_2\rightarrow 2H_2O$

This reaction is a balanced chemical reaction in which number of atoms of hydrogen and oxygen are equal on the both side of the reaction. So, this reaction obey the law of conservation of matter.

Or, we can say that the mass of the reactants is equal to the mass of the products.

In the reaction,

Mass of reactants = Mass of products

Mass of $2H_2+O_2$ = Mass of $2H_2O$

$4\times 1g+2\times 16g$ = $2\times 18g$

$4g+32g$ = $36g$

$36g$ = $36g$

That means, the mass of the reactants should be equal to the mass of the products.

Answer 2

It should be equal
nothing is lost, nothing is created