Baking soda and vinegar can be used to model a volcanic eruption in a science demonstration because they bubble violently when mixed. What can be concluded about mixing vinegar and baking soda?

Question

A.
Vinegar and baking soda react to form a new gaseous substance.
B.
Vinegar boils when it comes in contact with baking soda.
C.
Baking soda and vinegar make a uniform mixture.
D.
Baking soda has a lower density than vinegar.

Answer 1

The correct conclusion about mixing vinegar and baking soda is:

A. Vinegar and baking soda react to form a new gaseous substance.

When vinegar (which is acidic) and baking soda (which is basic) are mixed, they undergo a chemical reaction that produces carbon dioxide gas, resulting in the bubbling and foaming observed during the demonstration.