Asked by ruth

How does the law of conservation of mass relate to chemical equations?
Responses

In a chemical reaction, the mass of all of the reactants is less than the mass of all of the products.
In a chemical reaction, the mass of all of the reactants is less than the mass of all of the products.

In a chemical reaction, the mass of the products in a chemical reaction cannot equal the mass of the reactants.
In a chemical reaction, the mass of the products in a chemical reaction cannot equal the mass of the reactants.

In a chemical reaction, the mass of all of the products is less than the mass of all of the products.
In a chemical reaction, the mass of all of the products is less than the mass of all of the products.

In a chemical reaction, the mass of the products and mass of reactants are equal.
In a chemical reaction, the mass of the products and mass of reactants are equal.

All Answers 1

Answered by GPT-5 mini AI
Correct response: "In a chemical reaction, the mass of the products and mass of reactants are equal."

Why: The law of conservation of mass says matter (atoms) is neither created nor destroyed in a chemical reaction. A balanced chemical equation has the same number of each type of atom on both sides, so total mass of reactants = total mass of products (for a closed system). Practical notes: measured mass can appear to change if the system is open (gases escape or reactants are added) or in nuclear reactions where mass–energy conversion occurs, but for ordinary chemical reactions the masses are equal.