Module 1 - The Building Blocks Of Matter

Question 1

All matter can be classified as either:

Answer 1

Pure Substances or Mixtures

Question 2

Is gold a pure substance or a mixture?

Answer 2

Pure substance

Question 3

Is sea water a pure substance or a mixture?

Answer 3

Mixture

Question 4

An element is described as:

Answer 4

Pure substances which cannot be broken down into other substances by conventional chemical means.

Question 5

A compound is described as:

Answer 5

A pure substance that is made up of two or more elements.

Question 6

A solution is described as:

Answer 6

One or more substances dissolved in another, more plentiful, substance. Solutions are homogeneous mixtures.

Question 7

A homogeneous mixture is:

Answer 7

Two or more substances distributed uniformly.

Question 8

A heterogeneous mixture is:

Answer 8

A mixture that is not uniformly mixed, for example, soil, granite, sewage and pizza!

Question 9

All matter can be classified as either

Answer 9

Pure substance or a mixture

Question 10

What is the aqueous solution of sugar written as?

Answer 10

C12H22O11(aq)

Question 11

What is CH4 ?

Answer 11

Methane gas