Chapter 2: atoms, molecules and water

Question 1

heat of vaporization

Answer 1

the heat required to vaporize 1 mol of any substance

Question 2

heat of fusion

Answer 2

amount of heat energy that must be withdrawn or released from a substance to cause it to change from liquid to the solid state

Question 3

heat capacity

Answer 3

the amount of heat energy required to raise the temperature of an entire object or amount of a substance

Question 4

colligative properties

Answer 4

those properties that depend strictly on the total number of dissolved solute particles

Question 5

cohesion

Answer 5

the phenomenon of water molecules attracting each other

Question 6

adhesion

Answer 6

the ability of water to be attracted to, and thus adhere to, a surface that is not electrically neutral

Question 7

surface tension

Answer 7

is a measure of the attraction between molecules at the surface of a liquid

Question 8

acids

Answer 8

substances that release H+

Question 9

bases

Answer 9

substances that accept H+