Question

when a substance undergoes a chemical reaction, which of the following will not change? (select all that apply)
select all that apply:
temperature
energy
density
mass

Explanation:

According to the law of conservation of mass, in a chemical reaction, the total mass of the reactants is equal to the total mass of the products. Temperature, energy, and density can change during a chemical reaction. For example, exothermic reactions release heat (change in temperature and energy), and the formation of new substances can lead to a change in density. But mass remains constant.

Answer:

mass