Law Of Conservative Of Mass

Question 1

Which statement best describes the law of conservation of mass?
A) matter can be created but not destroyed
B) the mass of the reactants equals the mass of the products in a chemical reaction
C) the total number of atoms increases during a reaction

Answer 1

B) the mass of the reactants equals the mass of the products in a chemical reaction

Question 2

In a reaction where 50 g of reactants are combined, what should be the total mass of the products if the law of conservation of mass is followed?
A) 0g
B) 25g
C) 50 g
D) 100 g

Answer 2

C) 50 g