2. boiling point of water-100degrees celcius or 212degrees ferenheit

freezing point-0degrees celcius 32degrees ferenheit

condense-The dew point is related to the relative humidity.higher relative hummidity shows that the dew point is closer to the current air temperature. If the relative humidity is 100%, the dew point is equal to the current temperature.

melting point-same as freezing point.

3.distillation is a method of separating chemical substances based on differences in their volatilities in a boiling liquid mixture. it is usefull for power generation and industrial uses.

4. solubility is how soluable something is. the relative capability of being dissolved.

5.Solubility curves tell us what mass of solute will dissolve in a certain amount. i dont know how u can use it to tell what the sollubility of a substance is.

hope this helps

2.boil at 100 C,freeze at 0 C,condense at 100 C and melt at 0 C…

the other 3 questions will be in your text book…