Chemistry S.3.2

Question 1

Which of the following phase changes requires the loss of heat?
A. Melting
B. Evaporation
C. Freezing
D. Sublimation

Question 2

Which of the following is true of liquids?
A. They have definite shape and volume
B. They have no definite shape, but they have definite volume.
C. They have definite shape but no definite volume.
D. They have no definite shape and no definite volume

Question 3

What is the density in grams per cubic centimeter of a substance that has a mass of 22.5 g and a volume of 5cm3?

Question 4

Which of the following best describes the triple point?

A. Point where temperature, pressure, and volume all equal one another
B. Point where a substance can exist as a solid, liquid, and gas
C. Point where no more energy can be absorbed by a substance
D. Point where a substance starts to,lose its shape

Question 5

On a hot summer day, you place a cup of ice water outside. Using your knowledge of states of matter, describe what will likely happen in three to five sentences.