Use the chemical reaction to answer the question.

Question

NaHCO3+HC2H3O2→NaC2H3O2+H2O+CO2


A student mixes baking soda ( NaHCO3
) and acetic acid ( HC2H3O2
) to produce a chemical reaction shown. Which statement about the reaction is correct?

(1 point)
Responses

The atoms of the reactants are regrouped during the reaction.
The atoms of the reactants are regrouped during the reaction.

There are more H atoms after the reaction.
There are more H atoms after the reaction.

Some atoms gain mass after the reaction.
Some atoms gain mass after the reaction.

Atoms of Na are destroyed during the reaction.

Answer 1

The correct statement about the reaction is:

The atoms of the reactants are regrouped during the reaction.

In a chemical reaction, atoms are rearranged to form new substances, but the total number of each type of atom remains the same. The other statements are incorrect because:

• There are not more H atoms after the reaction; the number of H atoms is conserved.
• Atoms do not gain mass as mass is also conserved in a chemical reaction.
• Atoms of Na are not destroyed; they are simply rearranged into new compounds.