Question

name ____ class ____
chapter 2 properties of matter
compounds (page 40)

1. circle the letter of each sentence that is true about compounds.

a. a compound always contains at least two elements.
b. the substances that make up a compound are always joined in a fixed proportion.
c. a compound has the same properties as the elements from which it is formed.

mixtures (pages 41-42)

1. the properties of a mixture vary because the composition is not ______. circle the correct answer.

homogenous | heterogenous | fixed

1. is the following sentence true or false? a homogeneous mixture is a mixture in which it is difficult to distinguish the substances from one another.

solutions, suspensions, and colloids (pages 42-44)

1. circle the letter of the term that identifies the homogeneous mixture that forms when sugar is dissolved in a glass of hot water.

a. solution
b. suspension
c. colloid

1. use the terms in the box to complete the table about solutions, suspensions, and colloids.

homogenous | suspension | yes
small | colloid | heterogenous

solutions, suspensions, and colloids
type of mixture | relative size of largest particles | homogeneous or heterogeneous? | do particles scatter light?
solution | | | no

intermediate	homogeneous
large		yes

1. circle the letter before each example of a colloid.

a. windshield wiper fluid
b. fog
c. homogenized milk

Explanation:

Analyze questions 8 to 10

$$
LATEXBLOCK0
$$

Analyze questions 11 to 13

$$
LATEXBLOCK1
$$

Answer:

Question 8

Circle the letter of each sentence that is true about compounds.

• a. A compound always contains at least two elements.
• b. The substances that make up a compound are always joined in a fixed proportion.

Question 9

The properties of a mixture vary because the composition is not fixed.

Question 10

Is the following sentence true or false? A homogeneous mixture is a mixture in which it is difficult to distinguish the substances from one another.
true

Question 11

Circle the letter of the term that identifies the homogeneous mixture that forms when sugar is dissolved in a glass of hot water.

• a. solution

Question 12

Type of Mixture	Relative Size of Largest Particles	Homogeneous or Heterogeneous?	Do Particles Scatter Light?
Colloid	Intermediate	Homogeneous	Yes
Suspension	Large	Heterogeneous	Yes

Question 13

Circle the letter before each example of a colloid.

• b. fog
• c. homogenized milk