Question 1

Which of the following 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

Saline solution

Question 3

What is the smallest functional unit of matter according to the study materials?

Accepted Answer

Atom

Question 4

Which of the following substances is classified as an element?

Accepted Answer

Gold bar

Question 5

A student mixes salt and water to make a solution. What type of matter is this solution?

Accepted Answer

Homogeneous mixture

Question 6

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

Accepted Answer

Has a fixed composition

Question 7

Which of the following is a heterogeneous mixture?

Accepted Answer

Smog

Question 8

Which statement is TRUE about compounds?

Accepted Answer

They have properties different from the elements that form them.

Question 9

Given the substances: crystalline sugar, lead wire, and saline solution, which is a homogeneous mixture?

Accepted Answer

Saline solution

Question 10

Which of the following is classified as a compound?

Accepted Answer

NaCl

Question 11

Which of the following is a correct classification for orange juice?

Accepted Answer

Heterogeneous mixture

Question 12

If a sample contains only one type of atom, what is it classified as?

Accepted Answer

Element

Question 13

Which of the following is a real-life example of a compound?

Accepted Answer

NaCl (table salt)

Question 14

Which of the following is NOT a mixture?

Accepted Answer

NaCl

Question 15

Which of the following is a homogeneous mixture commonly found in medical settings?

Accepted Answer

Saline solution

Question 16

Which of the following statements about elements is correct?

Accepted Answer

Elements are the simplest type of matter.

Question 17

Which of the following is a correct classification for blood?

Accepted Answer

Heterogeneous mixture

Question 18

Which of the following is a correct classification for air?

Accepted Answer

Homogeneous mixture

Question 19

Which of the following is a correct classification for smog?

Accepted Answer

Heterogeneous mixture

Question 20

Which of the following is a correct classification for a gold bar?

Accepted Answer

Element

Classification of Matter: Elements, Compounds, and Mixtures

Study Guide - Practice Questions