Answer:
Step-by-step explanation:
1 At a certain temperature, the particles in a liquid have enough energy to become a gas. The process of a liquid becoming a gas is called boiling (or vapourization), while the process of a gas becoming a liquid is called condensation.
2 The type of reaction where two or more substances combine to form a new compound is a synthesis reaction that is one of the types of chemical reactions.
I only know 1 and 2 mybad