For my project, i added the solution and watched foam rise out of the dish. ( a. element )( b. reaction )( c. compound ) ( d. catalyst )( e. conservation )( f. neutralize ) i want to say c

An element is the purest form of molecular makeup. (hydrogen, carbon, etc.)
A compound is a substance formed by 2+ elements.

A reaction is a chemical change, in this case the foam rising from the dish.
A catalyst is something that causes a reaction.

Neutralization is when acids and bases balance out.
Conservation states that matter is not created nor destroyed but rather changes forms.

Go to school and learn fool