Assume that the mixture of substances in drawing (1)undergoes a chemical reaction.Which of the drawings (2)-(4)represents a product mixture that is consistent with the law of mass conservation?
A)drawing (2)
B)drawing (3)
C)drawing (4)

Question

Assume that the mixture of substances in drawing (1)undergoes a chemical reaction.Which of the drawings (2)-(4)represents a product mixture that is consistent with the law of mass conservation? 
A)drawing (2) 
B)drawing (3) 
C)drawing (4)

Quizplus · Accepted Answer

The law of mass conservation states that the total mass of the reactants must equal the total mass of the products in a chemical reaction. In drawing (3), the number of atoms of each element on both sides of the reaction arrow is the same, indicating that mass has been conserved. Drawings (2) and (4) both show an imbalance in the number of atoms, indicating that mass has not been conserved.

Assume That the Mixture of Substances in Drawing (1)undergoes a Chemical