Practice Quiz #1

Properties of Matter (answers are here)

Are the following properties of chlorine physical or chemical?

a. is a yellowish — green gas
b. can be used to disinfect polluted water
c. has a sharp, suffocating odour
d. its boiling point is —34.5°C
e. combines with sodium to form salt

Which of the following are physical changes and which are chemical changes?

a. rusting of iron b. combustion of gasoline
c. boiling of water do pumping of crude oil
e. distilling alcohol
f. digesting of food
g. boiling an egg
h. bending of glass

Identify the following as either a homogeneous mixture, a heterogeneous
mixture, a compound or an element.

a. baking soda b. water and antifreeze
c. gold
d. river water
e. Dairy Queen Blizzard
f. crude oil in the ground
g. contents of a hot air balloon

For the following statements, give the term that best mathes the statement or process

a. New substances that are formed in a chemical reaction

b. Has no definite volume nor shape

c. Two or more phases are present in the mixture

d. Composed of atoms and cannot be decomposed into simpler
substances by chemical means

e. Can neither be created nor destroyed, but changed from one form to
another

f. Contains on one kind of atom

5. Fill in the terms for the phase transitions of matter:

solid --------> liquid --------> gas