Question

started: oct 10 at 2:32pm quiz instructions question 7 10 pts when methane (ch₄) reacts with oxygen (o₂), carbon dioxide (co₂) and water (h₂o) form. which statement best shows that mass is conserved in this reaction? the number of carbon, hydrogen, and oxygen atoms stays the same before and after the reaction. the total mass of the products is greater than the total mass of the reactants. new atoms are created during the chemical reaction. the total number of molecules is the same before and after the reaction.

Explanation:

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. This means the number of each type of atom must be the same before and after the reaction. The total mass of products equals the total mass of reactants, no new atoms are created, and the number of molecules can change.

Answer:

The number of carbon, hydrogen, and oxygen atoms stays the same before and after the reaction.