Question

Use the chemical reaction to answer the 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 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 before and after the reaction. Therefore, the other statements you provided are not correct:

• There are more H atoms after the reaction: This is incorrect. The number of hydrogen atoms is conserved.
• Some atoms gain mass after the reaction: This is incorrect. Mass is conserved in a chemical reaction; atoms do not gain mass.
• Atoms of Na are destroyed during the reaction: This is incorrect. Sodium atoms are conserved and simply rearranged to form the products.

So, the correct choice regarding the nature of the reaction is that the atoms of the reactants are regrouped during the reaction.