Question

Use the chemical reaction to answer the 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

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

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

The atoms of the reactants are regrouped during the reaction.
The atoms of the reactants are regrouped during 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 products. The total number of each type of atom remains the same before and after the reaction, but the way they are organized changes, which is why we say the atoms are "regrouped." The other statements are incorrect: mass is conserved in a chemical reaction, the number of hydrogen atoms is the same before and after, and atoms are not destroyed in a chemical reaction.