$$ 1.15 \times 10$$^{-8}$$\ \mathrm{km}^3 $$

$$ 6.94 \times 10$$^{11}$$\ \mathrm{\mu g} $$

Question 1

Which of the following best describes a chemical change?

Accepted Answer

Cooking an egg

Question 2

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

Accepted Answer

Density

Question 3

Which process below is a reversible change?

Accepted Answer

Dissolving salt in water

Question 4

Which of the following is NOT a chemical property?

Accepted Answer

It has a yellow-orange color.

Question 5

Which of the following is classified as a homogeneous mixture?

Accepted Answer

A cup of black coffee

Question 6

Which of the following is an extensive property?

Accepted Answer

Kilograms

Question 7

Which of the following is a physical property?

Accepted Answer

Mercury is a silvery liquid at 25\ ^\circ \mathrm{C} $

Question 8

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

Accepted Answer

Milligrams

Question 9

Which of the following is a compound?

Accepted Answer

Ammonia, $$ \mathrm{NH}_3 $$

Question 10

Which of the following represents a chemical property of hydrogen gas?

Accepted Answer

It reacts explosively with oxygen gas.

Question 11

Which of the following is NOT a physical property?

Accepted Answer

An iron bar rusts.

Question 12

Which of the following is a pure substance?

Accepted Answer

Crystalline sugar

Question 13

Which of the following is a chemical change?

Accepted Answer

Iron rusting

Question 14

Which of the following is a correct SI base unit for mass?

Accepted Answer

Kilogram

Question 15

If a room has a volume of $$ 1.15 	imes 10^7$\ \mathrm{cm}^3 $$, what is the volume in $$ \mathrm{km}^3 $$?

Accepted Answer

$$ 1.15 	imes 10$$^{-8}$$\ \mathrm{km}^3 $$

Question 16

Which of the following is a heterogeneous mixture?

Accepted Answer

Chicken noodle soup

Question 17

Which of the following is an irreversible change?

Accepted Answer

Adding baking powder to cake batter

Question 18

Which of the following is an extensive property of a nitrogen molecule?

Accepted Answer

Moles

Question 19

Convert $$ 694\ \mathrm{kg}  to$$ $$ \mathrm{\mu g}  ($$micrograms).

Accepted Answer

$$ 6.94 	imes 10$$^{11}$$\ \mathrm{\mu g} $$

Question 20

At what temperature is the temperature in degrees Fahrenheit equal to the temperature in degrees Celsius?

Accepted Answer

$$ -40 $$

Fundamental Concepts in Chemistry: Matter, Properties, and Measurement

Study Guide - Practice Questions