Question

Vinegar (C2H4O2) and baking soda (NaHCO3) react to form sodium acetate, water, and carbon dioxide.

Answer 1

Answer: The correct answer is Option C.

Explanation:

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This means that total mass on the reactant side is equal to the total mass on the product side.

This also means that the total number of individual atoms on the reactant side will be equal to the total number of individual atoms on the product side.

For the given chemical reaction, the reactants are: $C_2H_4O_2\text{ and }NaHCO_3$

Number of carbon atoms = 3

Number of hydrogen atoms = 5

Number of sodium atoms = 1

Number of oxygen atoms = 5

These number of individual atoms must be present on the product side as well.

Hence, the correct answer is Option C.

Answer 2

C or in other words three.