Question 1

Which of the following elements exists as a diatomic molecule at room temperature?

Accepted Answer

Chlorine

Question 2

What is the correct formula for the compound formed between magnesium ions and nitride ions?

Accepted Answer

$$\mathrm{Mg_3N_2}$$

Question 3

Which of the following is the correct name for $$\mathrm{$$FeCl_3$$}$$?

Accepted Answer

Iron(III) chloride

Question 4

What is the correct name for $$\mathrm{Na_2SO_4}$$?

Accepted Answer

Sodium sulfate

Question 5

Which of the following best explains why coefficients are used to balance chemical equations instead of changing subscripts?

Accepted Answer

Changing coefficients changes the amount, while changing subscripts changes the identity and properties.

Question 6

What is the correct formula for ammonium carbonate?

Accepted Answer

$$\mathrm{(NH_4$)_2CO_3}$$

Question 7

Which of the following is the correct name for $$\mathrm{$$HClO_2$$}$$?

Accepted Answer

Chlorous acid

Question 8

A sample of sodium chloride is dissolved in water. What type of compound is sodium chloride and what happens to it in water?

Accepted Answer

It is an ionic compound and dissociates into ions in water.

Question 9

Which of the following is the correct name for $$\mathrm{P_4O_{10}}$$?

Accepted Answer

Tetraphosphorus decaoxide

Question 10

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

Accepted Answer

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

Question 11

Which of the following is the correct name for $$\mathrm{$$CCl_4$$}$$?

Accepted Answer

Carbon tetrachloride

Question 12

Which of the following is the correct formula for iron(II) iodide?

Accepted Answer

$$\mathrm{$$FeI_2$$}$$

Question 13

Which of the following is the correct name for $$\mathrm{$$HIO_3$$}$$?

Accepted Answer

Iodic acid

Question 14

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

Accepted Answer

$$\mathrm{Na_2O_2}$$

Question 15

Which of the following is the correct name for $$\mathrm{NH_4NO_3}$$?

Accepted Answer

Ammonium nitrate

Question 16

Which of the following is the correct formula for xenon tetrafluoride?

Accepted Answer

$$\mathrm{$$XeF_4$$}$$

Question 17

Which of the following is the correct name for $$\mathrm{Cr(NO_2$)_2}$$?

Accepted Answer

Chromium(II) nitrite

Question 18

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

Accepted Answer

$$\mathrm{H_2PO_4^-}$$

Question 19

Which of the following is the correct name for $$\mathrm{C_2H_6}$$?

Accepted Answer

Ethane

Question 20

Which of the following best describes the Law of Conservation of Mass as it applies to chemical reactions?

Accepted Answer

The total mass of reactants equals the total mass of products.

General Chemistry: Molecular Structure, Ionic Compounds, and Chemical Nomenclature

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