1. lisa had 20 grams of water. she poured out 15 grams. which of the following physical properties of the water changes?
a. boiling point
b. density
c. electrical conductivity
d. volume

2. a substance that is dissolved in another substance is which of the following?
a. saturation
b. solubility
c. solute
d. solvent

3. which of the following reasons explains why if salt water is heated, the water turns into steam while the salt remains?
a. water and salt have an equal boiling point
b. water has a lower boiling point than salt
c. salt has a lower boiling point than water
d. salt and water have an equal melting point