vinegar and baking soda chemical reaction... A scientist finds that the total mass after the compounds react, is less than the sum of the masses before they react. Which 2 statements explain this observation

Question

(1 point)
Responses

Some of the mass has escaped as a gas.

Some of the mass was destroyed during the reaction.

Law of conservation of mass. Mass can not be created nor destroyed.

There is no way the mass can be different.

Answer 1

The two statements that explain the observation are:

1. Some of the mass has escaped as a gas.
2. Law of conservation of mass. Mass cannot be created nor destroyed.

The first statement accounts for the fact that during the reaction between vinegar (acetic acid) and baking soda (sodium bicarbonate), carbon dioxide gas is produced, which can escape into the atmosphere, resulting in a lower mass after the reaction. The second statement reinforces the principle that mass is conserved in a closed system, meaning it cannot be created or destroyed, but it can change forms, as seen in the release of gas.