Question 1

Which of the following best describes a chemical property?

Accepted Answer

Iron reacts with oxygen to form rust.

Question 2

Which of the following is the correct formula for cobalt(II) sulfate hepta-hydrate?

Accepted Answer

$$\mathrm{$$CoSO_4$$ \cdot 7H_2O}$$

Question 3

A patient weighing 146 pounds is to receive a drug at a dosage of $$45.0 \ \mathrm{mg/kg} of $$body weight. The drug is supplied as a solution that contains $$250 \ \mathrm{mg} of $$drug per mL of solution. What volume of the drug should be injected? (1 pound = $$454 \ \mathrm{g})$$

Accepted Answer

$$0.57 \ \mathrm{mL}$$

Question 4

Which of the following is an illustration of the law of constant composition?

Accepted Answer

Water is always 11% hydrogen and 89% oxygen by mass.

Question 5

Which of the following samples of matter has the greatest density?

Accepted Answer

$$0.50 \ \mathrm{cm^3$}$$ \ with \ a \ mass \ of \ 0.32 \ \mathrm{g}$

Question 6

What is the physical state in which matter has a specific volume but does not have a specific shape?

Accepted Answer

Liquid

Question 7

Which of the following is a homogeneous mixture?

Accepted Answer

A small amount of salt dissolved in water

Question 8

How many significant figures are in the measurement $$0.00520$$?

Accepted Answer

3

Question 9

Gold has a density of $$19.3 \ \mathrm{g/cm^3$}. $$What is the side length (inches) of a cube of gold that weighs $$1.82 \ \mathrm{lb}$$? ($$1 \ \mathrm{lb} = 453.6 \ \mathrm{g}$$, $$1 \ \mathrm{in}^3 = 2.54^3$ \ \mathrm{cm^3$})$$

Accepted Answer

$$1.29 \ \mathrm{in}$$

Question 10

At the 2020 summer Olympics, Lamont Jacobs won the gold medal in the 100 meter dash finishing the race in $$9.80$$ seconds. What is his speed in miles per hour? ($$1 \ \mathrm{mile} = 1609 \ \mathrm{m})$$

Accepted Answer

$$22.9 \ \mathrm{mph}$$

Question 11

How many protons ($$p$$), electrons ($$e$$), and neutrons ($$n) $$are in an atom of $$^{62}\mathrm{Ni}$$?

Accepted Answer

$$p=28, \ e=28, \ n=34$$

Question 12

Which of the following is NOT a correct statement about isotopes?

Accepted Answer

Isotopes of an element have different atomic numbers.

Question 13

Which of the following is the correct name for $$\mathrm{$$CaCl_2$$ \cdot 2H_2O}$$?

Accepted Answer

Calcium chloride dihydrate

Question 14

Which of the following is the correct formula for barium chromate?

Accepted Answer

$$\mathrm{$$BaCrO_4$$}$$

Question 15

Which of the following is the correct name for $$\mathrm{Fe_2O_3}$$?

Accepted Answer

Iron(III) oxide

Question 16

Which of the following is the correct formula for ammonium acetate?

Accepted Answer

$$\mathrm{NH_4C_2H_3O_2}$$

Question 17

Which of the following is the correct formula for sodium dihydrogen phosphate?

Accepted Answer

$$\mathrm{NaH_2PO_4}$$

Question 18

Which of the following is the correct name for $$\mathrm{$$HNO_3$$}$$?

Accepted Answer

Nitric acid

Question 19

Which of the following is the correct formula for zinc phosphide?

Accepted Answer

$$\mathrm{Zn_3P_2}$$

General Chemistry: Measurement, Matter, and Chemical Nomenclature Study Guide

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