Q: A block of ice has a mass of 5.00 kg and a density of $$0.93\ \mathrm{g/cm^3$}. $$What is its volume in $$\mathrm{cm^3$}$$? (Use the correct number of significant figures.)

$$5.4 \times 10^3$\ \mathrm{cm^3$}$$

Q: A cyclist is traveling at $$16\ \mathrm{miles/hour}. $$How many kilometers will the cyclist travel in one day? (Use the correct number of significant figures.)

$$6.2 \times 10^2$\ \mathrm{km/day}$$

Q: A volume is reported as $$3.49\ \mathrm{ft^3$}. $$What is this volume in $$\mathrm{in^3$}$$? (Use the correct number of significant figures.)

$$6.03 \times 10^3$\ \mathrm{in^3$}$$

Q: What is the correct relationship between nanometers and centimeters?

$$1 \times 10^7$\ \mathrm{nm} = 1\ \mathrm{cm}$$

Question 1

Which of the following best describes a chemical property of gasoline?

Accepted Answer

Gasoline ignites easily in air.

Question 2

A block of ice has a mass of 5.00 kg and a density of $$0.93\ \mathrm{g/cm^3$}. $$What is its volume in $$\mathrm{cm^3$}$$? (Use the correct number of significant figures.)

Accepted Answer

$$5.4 	imes 10^3$\ \mathrm{cm^3$}$$

Question 3

Which of the following is a physical change?

Accepted Answer

Grinding peppercorns into pepper flakes

Question 4

A cube of copper has an edge length of $$2.50\ \mathrm{cm}$$ and a density of $$8.96\ \mathrm{g/cm^3$}. $$What is the mass of the cube? (Use the correct number of significant figures.)

Accepted Answer

$$140.\ \mathrm{g}$$

Question 5

Which of the following best describes the liquid state of matter?

Accepted Answer

Matter in this state has a definite volume, and the shape is determined by the container.

Question 6

How many significant figures are in the measured quantity $$0.0304\ \mathrm{L}$$?

Accepted Answer

Three significant figures

Question 7

A cyclist is traveling at $$16\ \mathrm{miles/hour}. $$How many kilometers will the cyclist travel in one day? (Use the correct number of significant figures.)

Accepted Answer

$$6.2 	imes 10^2$\ \mathrm{km/day}$$

Question 8

Which of the following is a homogeneous mixture?

Accepted Answer

Mouthwash

Question 9

What is the multiplier for the prefix centi-?

Accepted Answer

$$0.01$$

Question 10

Which of the following is a chemical change?

Accepted Answer

Burning gasoline in your car

Question 11

A sample of gas has a density of $$1.0\ \mathrm{g/L}. $$What is the density in $$\mathrm{mg/mL}$$?

Accepted Answer

$$1.0\ \mathrm{mg/mL}$$

Question 12

How many milliliters are in $$1\ \mathrm{kL}$$?

Accepted Answer

$$1 	imes 10^6$

Question 13

Which of the following correctly pairs the prefix with its abbreviation?

Accepted Answer

Giga-, G

Question 14

A student measures the mass of a sample as $$64.00\ \mathrm{g}. $$How many significant figures are in this measurement?

Accepted Answer

Four significant figures

Question 15

Which of the following best describes a physical property of copper metal?

Accepted Answer

Copper metal is ductile. It can be pulled into thin wires.

Question 16

A volume is reported as $$3.49\ \mathrm{ft^3$}. $$What is this volume in $$\mathrm{in^3$}$$? (Use the correct number of significant figures.)

Accepted Answer

$$6.03 	imes 10^3$\ \mathrm{in^3$}$$

Question 17

Which of the following is a heterogeneous mixture?

Accepted Answer

Chicken noodle soup

Question 18

What is the correct relationship between nanometers and centimeters?

Accepted Answer

$$1 	imes 10^7$\ \mathrm{nm} = 1\ \mathrm{cm}$$

Question 19

A patient is prescribed a medication with a dosage of $$250\ \mathrm{mg}$$ acetaminophen per tablet. Which of the following is a correct conversion factor for this dosage?

Accepted Answer

$$\frac{250\ \mathrm{mg\ acetaminophen}}{1\ \mathrm{tablet}}$$

Question 20

Which of the following is a compound?

Accepted Answer

Propane, $$\mathrm{C_3H_8}$$

General Chemistry: Matter, Measurement, and Problem Solving – Guided Practice

Guida di studio - Domande di pratica

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