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

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.