Question

vanessa had a beaker with a small amount of baking soda. she drops vinegar to the baking soda and observed fizzing and bubbling. based on her observation, what new substances occurred? it was hot. it was a conductor. it was a gas. it was magnetic.

Explanation:

Baking soda (sodium bicarbonate, \(NaHCO_3\)) reacts with vinegar (acetic acid, \(CH_3COOH\)). The chemical reaction is \(NaHCO_3+CH_3COOH = CH_3COONa + H_2O+CO_2\uparrow\). The fizzing and bubbling are due to the production of carbon dioxide (\(CO_2\)), which is a gas. The other options: "It was hot" refers to heat (not a new substance), "It was a conductor" refers to an electrical property (not a new substance), and "It was magnetic" refers to a magnetic property (not a new substance).

Answer:

It was a gas.