Chapter 3

Question 1

Define an element.

Answer 1

Substances that cannot be broken down into 2 or more simpler substances by chemical methods.

Question 2

Which of the element(s) are in the same group as rhodium?
(Refer to periodic table)

A. Cobalt
B. Nickel
C. Iridium
D. Iron

Answer 2

Cobalt & iridium.

Question 3

Define what a compound is.

Answer 3

Substance that is made up of 2 or more different elements that are chemically combined.

Question 4

Properties of a compound is different from its constituents. True or false?

Answer 4

True.

Question 5

What are constituent elements?

Answer 5

Elements that make up the compound.

Question 6

Define a mixture.

Answer 6

Substance that is made up of 2 or more different
elements not chemically combined.

Question 7

Mixtures are made up of the following:
A. Elements only.
B. Compounds only.
C. Both.

Answer 7

C.

Question 8

What is a solute?

Answer 8

Substance that dissolves in a solvent.

Question 9

What is a solvent?

Answer 9

Substance that dissolves the solute.

Question 10

Define solubility.

Answer 10

Ability of a solute to dissolve in a solvent.

Question 11

What is a suspension?

Answer 11

Insoluble substances in a solvent.

Question 12

What are the differences between a solution and a suspension?

Answer 12

Solution:
- Particles of solute cannot be seen.
- The solute does not settle to form solid deposits.
- Light can pass though fully
Suspension:
- Insoluble substances can be seen.
- Insoluble substances can settle to form solid deposits.
- Light can pass through fully.