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

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

Use the chemical reaction to answer the question.

2H2+O2→2H2O
There are four atoms of hydrogen (H
) before the reaction. How many atoms of hydrogen are present after the reaction?

(1 point)
Responses

5
5

4
4

8
8

2

Answer 2

Atoms of Na are destroyed during the reaction.

Answer 3

The correct response is 4. After the reaction, there are still four atoms of hydrogen present.