Q: Convert $$684 \\ \mathrm{kg} to$$ $$g$$ using metric prefixes.

$$6.84 \\ \times 10^5$ \\ \mathrm{g}$$

Q: Which of the following is the correct formula for density?

$$\\text{Density} = \\frac{\\text{Mass}}{\\text{Volume}}$$

Q: A student needs to convert $$32 \\ \mathrm{inches} to $$centimeters. Which conversion factor should be used?

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

Question 1

Which of the following best describes a homogeneous mixture?

Accepted Answer

A mixture in which the composition is uniform throughout.

Question 2

Which of the following is an example of a physical change?

Accepted Answer

Dissolving sugar in water

Question 3

A student mixes sand and salt in a beaker. Which classification best describes the resulting mixture?

Accepted Answer

Heterogeneous mixture

Question 4

Which of the following is NOT a chemical property?

Accepted Answer

Melting point

Question 5

Which of the following is an intensive property?

Accepted Answer

Density

Question 6

Which of the following is classified as an extensive property?

Accepted Answer

Mass

Question 7

A cube of silver has a density of $$10.5 \ \mathrm{g/cm^3$}$$ and measures $$3.60 \ \mathrm{cm} on $$each side. What is its mass in kilograms?

Accepted Answer

$$0.511 \ \mathrm{kg}$$

Question 8

Which of the following processes is reversible?

Accepted Answer

Melting ice and boiling water

Question 9

Convert $$684 \ \mathrm{kg} to$$ $$g$$ using metric prefixes.

Accepted Answer

$$6.84 \ 	imes 10^5$ \ \mathrm{g}$$

Question 10

How many significant figures are in the measurement $$0.003640$$?

Accepted Answer

4

Question 11

Which of the following scientific notation values is written correctly?

Accepted Answer

$$1.25 \ 	imes 10^4$

Question 12

A scientist places a solid in a graduated cylinder and the water level increases from $$200 \ \mathrm{mL} to$$ $$265 \ \mathrm{mL}. $$What is the volume of the solid?

Accepted Answer

$$65 \ \mathrm{mL}$$

Question 13

Which of the following is the correct formula for density?

Accepted Answer

$$\text{Density} = \frac{\text{Mass}}{\text{Volume}}$$

Question 14

If the density of blood is $$1.060 \ \mathrm{g/mL}$$, how many grams of blood would be found in $$400 \ \mathrm{mL}$$?

Accepted Answer

$$424 \ \mathrm{g}$$

Question 15

Which SI base unit is used to measure electric current?

Accepted Answer

Ampere

Question 16

A student needs to convert $$32 \ \mathrm{inches} to $$centimeters. Which conversion factor should be used?

Accepted Answer

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

Question 17

Which of the following is NOT a physical property?

Accepted Answer

Rusting in contact with aluminum

Question 18

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

Accepted Answer

It reacts explosively with oxygen gas.

Question 19

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

Accepted Answer

Converting miles to centimeters to determine the distance between two cities.

Introduction to General Chemistry: Classification of Matter, Properties, and Measurement

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