Question

question 2. during a chemical reaction, if 25 grams of reactants are combined and the total mass of the products is 25 grams, what does this observation demonstrate about the law of conservation of mass? the law of conservation of mass is only applicable to physical changes, not chemical changes. the law of conservation of mass is incorrect because mass is created during chemical reactions. the law of conservation of mass is not upheld because the mass of the products is different from the reactants. the law of conservation of mass is upheld because the mass of the products equals the mass of the reactants.

Explanation:

The law of conservation of mass states that in a closed - system, the mass of the reactants equals the mass of the products in a chemical reaction. Here, 25 grams of reactants combine to form 25 grams of products, which shows the equality of reactant and product mass.

Answer:

The law of conservation of mass is upheld because the mass of the products equals the mass of the reactants.