Question

1. what is precipitation?
2. what temperature does water boil at?
3. what state is water in when it is ice?

Explanation:

Precipitation is the process by which a solid forms from a solution during a chemical reaction or change in conditions. Water boils at 100°C at standard atmospheric pressure. When water is ice, it is in the solid - state.

Answer:

1. The process by which a solid forms from a solution.
2. 100°C
3. Solid - state