In the balanced chemical reaction 2H 2

Question

+ O 2
→2H 2
O, what does the law of conservation of mass indicate about the reactants and products?(2 points)
Responses

The total mass of the reactants can change during the reaction.
The total mass of the reactants can change during the reaction.

The total mass of the reactants is greater than the total mass of the products.
The total mass of the reactants is greater than the total mass of the products.

The total mass of the reactants is equal to the total mass of the products.
The total mass of the reactants is equal to the total mass of the products.

The reaction produces more mass than is present in the reactants.

Answer 1

The correct response is:

The total mass of the reactants is equal to the total mass of the products.

According to the law of conservation of mass, in a chemical reaction, the mass of the reactants must equal the mass of the products. This means that no mass is lost or gained during the reaction; it is simply transformed from reactants to products.