Q: Convert $$654\ \mathrm{kg} to$$ $$\mathrm{g}$$ using metric prefixes.

$$6.54 \times 10^5$\ \mathrm{g}$$

Q: A room has a volume of $$1.5 \times 10^9$\ \mathrm{cm^3$}. $$What is the volume in $$\mathrm{m^3$}$$?

$$1.5 \times 10^3$\ \mathrm{m^3$}$$

Question 1

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

Accepted Answer

Pure oxygen and nitrogen gas

Question 2

Which of the following changes is a chemical change?

Accepted Answer

Cooking an egg

Question 3

A scientist places a piece of unknown solid weighing 0.45 g into a glass beaker. The water level increases from 200 mL to 206 mL. What is the density of the unknown solid in $$\mathrm{g/cm^3$}$$?

Accepted Answer

$$0.075\ \mathrm{g/mL}$$

Question 4

Which of the following is NOT a chemical property?

Accepted Answer

Has a yellow-orange color

Question 5

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

Accepted Answer

Kilograms

Question 6

A cube of silver has a density of $$10.5\ \mathrm{g/cm^3$}$$ and measures $$0.36\ \mathrm{m} on $$each side. What is its mass in kilograms?

Accepted Answer

$$486.7\ \mathrm{kg}$$

Question 7

Which of the following SI base units is used to measure electric current?

Accepted Answer

Ampere

Question 8

Convert $$654\ \mathrm{kg} to$$ $$\mathrm{g}$$ using metric prefixes.

Accepted Answer

$$6.54 	imes 10^5$\ \mathrm{g}$$

Question 9

Which of the following scientific notation values is written correctly?

Accepted Answer

$$5.220 	imes 10^3$

Question 10

A sample of copper wire (density $$8.96\ \mathrm{g/cm^3$}) $$has a diameter of $$0.32\ \mathrm{mm}$$ and a mass of $$21.7\ \mathrm{g}. $$How long is the wire in meters? (Assume the wire is a perfect cylinder.)

Accepted Answer

$$30.0\ \mathrm{m}$$

Question 11

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

Accepted Answer

Kilograms

Question 12

If the density of an unknown metal is $$2.14\ \mathrm{g/cm^3$}$$, express its density in $$\mathrm{kg/m^3$}.$$

Accepted Answer

$$2140\ \mathrm{kg/m^3$}$$

Question 13

Which of the following processes is reversible?

Accepted Answer

Mixing salt and water

Question 14

A room has a volume of $$1.5 	imes 10^9$\ \mathrm{cm^3$}. $$What is the volume in $$\mathrm{m^3$}$$?

Accepted Answer

$$1.5 	imes 10^3$\ \mathrm{m^3$}$$

Question 15

Which of the following is a physical property?

Accepted Answer

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

Question 16

Which of the following statements about significant figures is true?

Accepted Answer

The number of significant figures in a measurement is determined by the least precise digit.

Question 17

A pharmaceutical drug contains $$4.5\%$$ active ingredient by mass. What mass in kg of active ingredient is present in one bottle of $$120\ \mathrm{g}$$?

Accepted Answer

$$0.0054\ \mathrm{kg}$$

Question 18

Which of the following is classified as an element, compound, or mixture? Ammonia, $$\mathrm{NH_3$}.$$

Accepted Answer

Compound

Question 19

Which of the following temperature conversions is correct?

Accepted Answer

$$K = ^\circ C + 273.15$$

Question 20

Which of the following is the correct formula for density?

Accepted Answer

$$\mathrm{Density} = \dfrac{\mathrm{mass}}{\mathrm{volume}}$$

Introduction to Matter & Measurement: General Chemistry Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards