Question

when the amount of something remains the same over time, we say it is conserved. based on the law of conservation of matter, which of the following must be conserved in a balanced chemical equation? choose 1 answer: a the number of chemical bonds b the number of molecules c the number of each type of atom d the chemical properties of the substances

Explanation:

The law of conservation of matter states that matter is neither created nor destroyed in a chemical reaction. In a balanced chemical equation, atoms are conserved. Chemical bonds can break and form (so A is wrong), the number of molecules can change (e.g., \(2H_2 + O_2
ightarrow 2H_2O\), 3 molecules on reactant side, 2 on product side, so B is wrong), and chemical properties change as new substances are formed (so D is wrong).

Answer:

C. the number of each type of atom