Question 1

Which of the following best describes a chemical change?

Accepted Answer

Burning wood in a campfire

Question 2

Which of the following is an example of an intensive property?

Accepted Answer

Density

Question 3

A student mixes 50 mL of ethanol with 50 mL of water. The resulting solution is best classified as:

Accepted Answer

A homogeneous mixture

Question 4

Which of the following is NOT a chemical property of hydrogen gas?

Accepted Answer

It is less dense than air

Question 5

Which of the following is an extensive property?

Accepted Answer

Volume

Question 6

Which process is an example of a reversible change?

Accepted Answer

Melting chocolate and then re-solidifying it in the freezer

Question 7

A gold bar is best classified as:

Accepted Answer

An element

Question 8

Which of the following is NOT a physical property?

Accepted Answer

An iron bar rusts

Question 9

Convert $$128\ ^\circ\mathrm{F} to $$degrees Celsius using the formula $$C = \frac{5}{9}(F - 32). $$What is the result?

Accepted Answer

$$53.3\ ^\circ\mathrm{C}$$

Question 10

Which of the following is written correctly in scientific notation?

Accepted Answer

$$1.25 	imes 10^4$

Question 11

Which of the following is a chemical change?

Accepted Answer

Cooking an egg

Question 12

Which of the following is a homogeneous mixture?

Accepted Answer

A cup of black coffee

Question 13

Which of the following is NOT an example of an intensive property?

Accepted Answer

Milligrams

Question 14

Which of the following is a correct SI base unit and its physical quantity?

Accepted Answer

Meter for length

Question 15

A sample of water is heated from $$20\ ^\circ\mathrm{C} to$$ $$80\ ^\circ\mathrm{C}. $$Which statement is true?

Accepted Answer

Both the temperature and the thermal energy increase.

Question 16

Which of the following is a physical change?

Accepted Answer

Tearing a piece of paper

Question 17

Which of the following is NOT a chemical property for an unknown element?

Accepted Answer

It has a yellow-orange color

Question 18

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

Accepted Answer

Trail mix

Question 19

Which of the following is classified as an extensive property?

Accepted Answer

Chemical Energy

Question 20

If the density of platinum is $$21.45\ \mathrm{g/cm^3$}$$, what is the mass of a platinum cube with a volume of $$2.0\ \mathrm{cm^3$}$$?

Accepted Answer

$$42.90\ \mathrm{g}$$

Fundamental Concepts of Matter, Properties, and Measurement in Physical Science

Study Guide - Practice Questions