Question 1

Which of the following statements best describes a compound?

Accepted Answer

A substance composed of two or more different elements that are chemically bonded together.

Question 2

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

Accepted Answer

A cup of black coffee

Question 3

Which statement is true regarding elements and compounds?

Accepted Answer

Elements and compounds are both pure substances.

Question 4

Which of the following substances is classified as an element?

Accepted Answer

Gold bar

Question 5

Which of the following is NOT a characteristic of a mixture?

Accepted Answer

Its components are chemically bonded.

Question 6

A student mixes pure oxygen and nitrogen gas in a container. What type of matter is formed?

Accepted Answer

Homogeneous mixture

Question 7

Which of the following is a compound?

Accepted Answer

Ammonia, NH$$_3$$

Question 8

Which of the following best describes the difference between a homogeneous and a heterogeneous mixture?

Accepted Answer

Homogeneous mixtures have a uniform composition throughout, while heterogeneous mixtures do not.

Question 9

Which of the following is a correct classification for saline solution?

Accepted Answer

Homogeneous mixture

Question 10

Which of the following substances is a pure substance?

Accepted Answer

Crystalline sugar

Question 11

A bowl of cereal with milk is best classified as:

Accepted Answer

Heterogeneous mixture

Question 12

Which of the following is true about compounds?

Accepted Answer

Compounds are made of two or more elements chemically bonded.

Question 13

Which of the following is a heterogeneous mixture?

Accepted Answer

Trail mix

Question 14

Which of the following substances can only be broken down by chemical means?

Accepted Answer

Compounds

Question 15

Which of the following is NOT a pure substance?

Accepted Answer

Gatorade

Question 16

Which of the following is the basic functional unit of matter?

Accepted Answer

Atom

Question 17

Which of the following best describes the classification of matter?

Accepted Answer

Matter is classified as pure substances and mixtures.

Question 18

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

Accepted Answer

Seawater (filtered)

Question 19

Which of the following is a correct example of a compound?

Accepted Answer

Ammonia, NH$$_3$$

Question 20

Which of the following is a correct example of an element?

Accepted Answer

Gold bar

Classification of Matter: Elements, Compounds, and Mixtures

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