Can anyone please help me I’ve added a screenshot of what I need help with

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

Which substance can be broken down by chemical means