Question

conservation of mass
in a closed system, a student combines vinegar and baking soda. if the mass of the reactants is 50 grams, what should the mass of the products be?
less than 50 grams
50 grams
more than 50 grams
cannot be determined

Explanation:

According to the law of conservation of mass, in a closed system, the mass of reactants equals the mass of products. Here, the mass of reactants (vinegar + baking soda) is 50 grams.

Answer:

50 grams