Use the chemical reaction to answer the question.

Question

NaHCO3+HC2H3O2→NaC2H3O2+H2O+CO2
NaHCO
3
+
HC
2
H
3
O
2
→
NaC
2
H
3
O
2
+
H
2
O
+
CO
2
A student mixes baking soda (NaHCO3
NaHCO
3
) and acetic acid (HC2H3O2
HC
2
H
3
O
2
) to produce a chemical reaction shown. Which statement about the reaction is correct?

(1 point)
Responses

Atoms of Na are destroyed during the reaction.
Atoms of Na are destroyed 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.

The atoms of the reactants are regrouped during the reaction.

help

Answer 1

The correct statement about the reaction is:

The atoms of the reactants are regrouped during the reaction.

In a chemical reaction, the atoms are rearranged to form new substances, but they are neither created nor destroyed. Thus, the total number of each type of atom remains the same before and after the reaction. The other statements are incorrect for the following reasons:

• Atoms of Na are destroyed during the reaction. (Incorrect: Atoms are not destroyed in a chemical reaction.)
• There are more H atoms after the reaction. (Incorrect: The number of hydrogen atoms remains the same before and after the reaction.)
• Some atoms gain mass after the reaction. (Incorrect: The mass is conserved in a chemical reaction; atoms do not gain mass.)

Therefore, the correct choice is that the atoms of the reactants are regrouped during the reaction.