Question

question 1
according to the law of conservation of mass, in any chemical change
the masses of products and reactants have no predictable relationship
the mass of reactants is equal to the mass of products
the mass of reactants is less than the mass of products
the mass of reactants is greater than the mass of products

Explanation:

The Law of Conservation of Mass states that in a chemical reaction, mass is neither created nor destroyed. This means the total mass of the reactants must equal the total mass of the products.

Answer:

the mass of reactants is equal to the mass of products