Question 1

Which of the following statements correctly describes the location of elements on the periodic table?

Accepted Answer

Groups are the vertical columns, and periods are the horizontal rows.

Question 2

Which of the following elements is a nonmetal?

Accepted Answer

Oxygen (O)

Question 3

How many total atoms are present in one molecule of $$\mathrm{C_6H_{12}O_6$}$$?

Accepted Answer

$$6 + 12 + 6 = 24$$

Question 4

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

Accepted Answer

Burning wood in a fireplace

Question 5

A student measures the length of a metal rod as $$12.30 cm $$using a ruler marked to the nearest $$0.01 cm. $$How many significant figures are in this measurement?

Accepted Answer

$$4$$

Question 6

Which of the following measurements contains the correct number of certain and uncertain digits if a graduated cylinder is marked every $$0.1 mL $$and the reading is $$25.7 mL$$?

Accepted Answer

2 certain digits, 1 uncertain digit

Question 7

Calculate the result of $$4.56 + 1.4$$ and report it with the correct number of significant figures.

Accepted Answer

$$6.0$$

Question 8

Multiply $$2.34 (3 $$sig figs) by $$1.2 (2 $$sig figs) and report the answer with the correct number of significant figures.

Accepted Answer

$$2.8$$

Question 9

Round $$0.004567 to $$two significant figures.

Accepted Answer

$$0.0046$$

Question 10

Convert $$3.2 	imes 10$$^{-3}$$ to decimal notation.

Accepted Answer

$$0.0032$$

Question 11

Which prefix and symbol represent $$10^{-6}$$?

Accepted Answer

micro-, \mu

Question 12

A patient is prescribed $$500 mg of a $$medication. How many grams is this?

Accepted Answer

$$0.5 g$$

Question 13

A student needs to convert $$250 mL to $$liters. What is the correct answer?

Accepted Answer

$$0.25 L$$

Question 14

A graduated cylinder contains $$45.0 mL of $$water. After a metal object is added, the volume rises to $$52.5 mL. $$What is the volume of the metal object?

Accepted Answer

$$7.5 mL$$

Question 15

A block has a mass of $$36.0 g $$and a volume of $$12.0 mL. $$What is its density?

Accepted Answer

$$3.0 g/mL$$

Question 16

A doctor orders a medication at a dosage of $$0.25 mg/kg $$for a $$60 kg $$patient. How many milligrams should the patient receive?

Accepted Answer

$$15 mg$$

Question 17

Which of the following best describes a physical change?

Accepted Answer

Boiling of water

Question 18

Which of the following is the correct scientific notation for $$0.00056$$?

Accepted Answer

$$5.6 	imes 10$$^{-4}$$

Question 19

A nurse needs to administer $$0.75 L of $$saline. How many milliliters is this?

Accepted Answer

$$750 mL$$

Question 20

A solution contains $$0.020 g of $$solute in $$10.0 mL of $$solution. What is the concentration in $$g/mL$$ with the correct number of significant figures?

Accepted Answer

$$0.0020 g/mL$$

Chapter 1: Chemistry Basics – Matter and Measurement (Study Guide)

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