Question 1

Which of the following best describes the relationship between the physical properties of a compound and the physical properties of the elements that make up the compound?

Accepted Answer

The physical properties of a compound are usually very different from those of the elements that compose it.

Question 2

Which of the following is classified as a compound?

Accepted Answer

Calcium bromide

Question 3

Which of the following is an example of a homogeneous mixture?

Accepted Answer

Well-stirred sugar water

Question 4

Brass is best classified as which of the following?

Accepted Answer

Homogeneous mixture

Question 5

Which of the following statements about mixtures is correct?

Accepted Answer

Mixtures can be separated into their components by physical means.

Question 6

A glass of water with dissolved sugar (no visible particles) is best described as:

Accepted Answer

A homogeneous mixture

Question 7

Which of the following is a correct classification for carbon monoxide?

Accepted Answer

Compound

Question 8

Which of the following is a heterogeneous mixture?

Accepted Answer

Dirt

Question 9

Which of the following best explains why the properties of salt (NaCl) are different from those of sodium and chlorine?

Accepted Answer

Salt is a compound, and compounds have unique properties different from their constituent elements.

Question 10

Which of the following is an example of a compound?

Accepted Answer

Sugar

Question 11

A sample of air is best described as:

Accepted Answer

A homogeneous mixture

Question 12

Which of the following is a correct classification for gasoline?

Accepted Answer

Homogeneous mixture

Question 13

Which of the following is a correct classification for wood?

Accepted Answer

Heterogeneous mixture

Question 14

A hamburger is best classified as which of the following?

Accepted Answer

Heterogeneous mixture

Question 15

Which of the following is a correct classification for oxygen?

Accepted Answer

Element

Question 16

Which of the following is a correct classification for fruit punch (with no visible fruit pieces)?

Accepted Answer

Homogeneous mixture

Question 17

Which of the following is a correct classification for 7 grain bread?

Accepted Answer

Heterogeneous mixture

Question 18

Which of the following is a correct classification for salt water?

Accepted Answer

Homogeneous mixture

Question 19

Which of the following is a correct classification for carbon + oxygen (not chemically combined)?

Accepted Answer

Mixture

Question 20

Which of the following is a correct classification for glass of water (pure water)?

Accepted Answer

Compound

Classification of Matter: Elements, Compounds, and Mixtures

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