Question 1

Which of the following correctly describes the type of bond and compound formed between magnesium and chlorine?

Accepted Answer

Ionic bond; ionic compound

Question 2

What is the correct chemical formula for the compound formed when magnesium and phosphorus combine, and how are the charges balanced?

Accepted Answer

Mg3P2; three Mg2+ ions and two P3- ions

Question 3

Which of the following is the correct formula for the compound formed by lithium and sulfur, and what is the reasoning?

Accepted Answer

Li2S; two Li+ ions and one S2- ion

Question 4

Which of the following compounds is formed by a covalent bond?

Accepted Answer

CO2

Question 5

What is the correct name for the ionic compound Na2S?

Accepted Answer

Sodium sulfide

Question 6

Which of the following is the correct name for the compound MgO?

Accepted Answer

Magnesium oxide

Question 7

Which of the following is a diatomic element?

Accepted Answer

H2

Question 8

What is the correct molecular compound name for N2O?

Accepted Answer

Dinitrogen monoxide

Question 9

Which of the following is the correct formula for potassium sulfide, based on the charges of the ions?

Accepted Answer

K2S

Question 10

What is the correct name for the covalent compound S2Br2?

Accepted Answer

Disulfur dibromide

Question 11

Which of the following is the correct formula for the compound formed by boron and fluorine, and what is the reasoning?

Accepted Answer

BF3; one B3+ ion and three F- ions

Question 12

What is the correct molecular compound name for NH3?

Accepted Answer

Nitrogen trihydride

Question 13

Which of the following is the correct name for CO2?

Accepted Answer

Carbon dioxide

Question 14

What is the correct formula for the compound formed by magnesium and nitrogen, and how are the charges balanced?

Accepted Answer

Mg3N2; three Mg2+ ions and two N3- ions

Question 15

Which of the following is the correct molecular compound name for N2H4?

Accepted Answer

Dinitrogen tetrahydride

Question 16

Which of the following is the correct name for N2O5?

Accepted Answer

Dinitrogen pentoxide

Question 17

Which of the following is the correct formula for iodine heptafluoride?

Accepted Answer

IF7

Question 18

Which of the following is the correct molecular compound name for NO?

Accepted Answer

Nitrogen monoxide

Question 19

Which of the following is the correct formula for carbon tetrachloride?

Accepted Answer

CCl4

Question 20

A patient is exposed to nitrous oxide during a dental procedure. What is the correct molecular compound name for nitrous oxide?

Accepted Answer

Dinitrogen monoxide

Ionic and Molecular Compounds: Structure, Naming, and Formulas

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