Question 1

Which of the following is the correct chemical formula for magnesium phosphate?

Accepted Answer

$$\mathrm{Mg_3$(PO_4$)_2}$$

Question 2

What is the correct symbol for the element potassium?

Accepted Answer

$$\mathrm{K}$$

Question 3

Which of the following is the correct formula for calcium nitrate?

Accepted Answer

$$\mathrm{Ca(NO_3$)_2}$$

Question 4

A student needs to convert 5.00 miles to kilometers. Which conversion factor should they use?

Accepted Answer

$$1~\mathrm{mile} = 1.609~\mathrm{km}$$

Question 5

Which of the following is the correct symbol for the element copper?

Accepted Answer

$$\mathrm{Cu}$$

Question 6

What is the correct formula for ammonium phosphate?

Accepted Answer

$$\mathrm{(NH_4$)_3PO_4}$$

Question 7

Which of the following is the correct formula for sodium carbonate?

Accepted Answer

$$\mathrm{Na_2CO_3}$$

Question 8

A chemist measures a volume of $$250~\mathrm{mL}. $$What is this volume in liters?

Accepted Answer

$$0.250~\mathrm{L}$$

Question 9

Which of the following is the correct symbol for the element lead?

Accepted Answer

$$\mathrm{Pb}$$

Question 10

Which of the following is the correct formula for potassium permanganate?

Accepted Answer

$$\mathrm{$$KMnO_4$$}$$

Question 11

A sample contains $$3.00~\mathrm{mol} of $$sodium chloride. How many formula units are present? (Use Avogadro's number: $$6.022 	imes 10$$^{23}$$)

Accepted Answer

$$1.81 	imes 10$$^{24}$$

Question 12

Which of the following is the correct formula for copper(II) sulfate?

Accepted Answer

$$\mathrm{$$CuSO_4$$}$$

Question 13

Which of the following is the correct symbol for the element tin?

Accepted Answer

$$\mathrm{Sn}$$

Question 14

A chemist needs to prepare $$500~\mathrm{mL} of a $$solution. How many liters is this?

Accepted Answer

$$0.500~\mathrm{L}$$

Question 15

Which of the following is the correct formula for calcium sulfate?

Accepted Answer

$$\mathrm{$$CaSO_4$$}$$

Question 16

Which of the following is the correct symbol for the element silver?

Accepted Answer

$$\mathrm{Ag}$$

Question 17

A patient receives a dose of $$250~\mathrm{mg} of a $$medication. How many grams is this?

Accepted Answer

$$0.25~\mathrm{g}$$

Question 18

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

Accepted Answer

$$\mathrm{(NH_4$)_2SO_4}$$

Question 19

Which of the following is the correct symbol for the element phosphorus?

Accepted Answer

$$\mathrm{P}$$

Question 20

A chemist needs to convert $$2.50~\mathrm{L} to $$milliliters. What is the correct answer?

Accepted Answer

$$2500~\mathrm{mL}$$

General Chemistry Exam Guidance: Naming and Symbol Identification

Guida di studio - Domande di pratica