Q: Convert $$654\ \mathrm{kg} to $$grams 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 $$\mathrm{m^3$}$$?

$$1.5 \times 10^6$\ \mathrm{m^3$}$$

Question 1

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

Accepted Answer

Salt dissolved in water

Question 2

Which of the following is NOT a physical change?

Accepted Answer

Burning wood

Question 3

A student mixes vinegar (acetic acid) and baking soda (sodium bicarbonate) and observes bubbling and the formation of a new substance. This is an example of:

Accepted Answer

A chemical change

Question 4

Which of the following is an intensive property?

Accepted Answer

Density

Question 5

Which of the following is classified as an extensive property?

Accepted Answer

Mass

Question 6

Which of the following is NOT a chemical property?

Accepted Answer

Is a yellow solid

Question 7

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

$$4.9\ \mathrm{kg}$$

Question 8

Which of the following SI base units is correctly matched with its physical quantity?

Accepted Answer

Meter (m) – length

Question 9

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

Accepted Answer

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

Question 10

A scientist measures the length of a pencil as $$8.70\ \mathrm{cm}$$ using a ruler marked to the nearest $$0.1\ \mathrm{cm}. $$How many significant figures should be reported?

Accepted Answer

3

Question 11

Which of the following scientific notation values is written correctly?

Accepted Answer

$$5.220 	imes 10^4$

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

$$3.0\ \mathrm{m}$$

Question 14

Which of the following is NOT a correct example of a physical property?

Accepted Answer

Potassium metal is extremely reactive with water

Question 15

Which of the following processes is reversible?

Accepted Answer

Melting ice to form liquid water

Question 16

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

Accepted Answer

$$1.5 	imes 10^6$\ \mathrm{m^3$}$$

Question 17

Which of the following is the correct formula for density?

Accepted Answer

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

Question 18

Which of the following is NOT a mixture?

Accepted Answer

Gold bar

Question 19

Which of the following is an example of dimensional analysis in a real-world context?

Accepted Answer

Using the density of gasoline to calculate the mass of fuel needed for a flight

Question 20

Which of the following is the correct conversion factor to relate inches to centimeters?

Accepted Answer

$$1\ \mathrm{in} = 2.54\ \mathrm{cm}$$

Matter, Measurement, and Chemical Change: General Chemistry Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards