Question 1

Which of the following best describes a covalent bond?

Accepted Answer

A bond formed by the sharing of valence electrons between two nonmetals.

Question 2

What is the correct name for the compound with the formula $$\mathrm{N_2O_5}$$?

Accepted Answer

Dinitrogen pentoxide

Question 3

Given the name 'carbon tetrachloride,' what is its chemical formula?

Accepted Answer

$$\mathrm{$$CCl_4$$}$$

Question 4

Which of the following compounds is ionic?

Accepted Answer

$$\mathrm{K_2O}$$

Question 5

What is the correct name for $$\mathrm{SO_3$}$$?

Accepted Answer

Sulfur trioxide

Question 6

Which of the following is the correct formula for 'dichlorine heptoxide'?

Accepted Answer

$$\mathrm{Cl_2O_7}$$

Question 7

A patient is exposed to a gas with the formula $$\mathrm{NO_2$}. $$What is the correct name for this compound, and is it ionic or covalent?

Accepted Answer

Nitrogen dioxide, covalent

Question 8

Which of the following is the correct name for $$\mathrm{P_2O_5}$$?

Accepted Answer

Diphosphorus pentoxide

Question 9

What is the correct formula for 'diboron trioxide'?

Accepted Answer

$$\mathrm{B_2O_3}$$

Question 10

Which of the following is a correct rule for naming molecular compounds?

Accepted Answer

Use prefixes to indicate the number of atoms for both nonmetals.

Question 11

A chemist is asked to write the formula for 'tetraphosphorus decoxide.' What is the correct formula?

Accepted Answer

$$\mathrm{P_4O_{10}}$$

Question 12

Which of the following best explains why prefixes are used in naming molecular compounds?

Accepted Answer

Because multiple compounds can be formed from the same two nonmetals.

Question 13

Which of the following is the correct name for $$\mathrm{$$NCl_3$$}$$?

Accepted Answer

Nitrogen trichloride

Question 14

A student writes the name 'monocarbon monoxide' for $$\mathrm{CO}. $$What is the error in this name?

Accepted Answer

The prefix 'mono-' is not used for the first element.

Question 15

Which of the following is the correct formula for 'sulfur hexafluoride'?

Accepted Answer

$$\mathrm{SF_6$}$$

Question 16

A compound is named 'phosphorus trichloride.' Which of the following is true about this compound?

Accepted Answer

It is a covalent compound because it is formed from two nonmetals.

Question 17

Which of the following is the correct name for $$\mathrm{Cl_2O}$$?

Accepted Answer

Dichlorine monoxide

Question 18

A patient is exposed to a compound with the formula $$\mathrm{NO}. $$What is the correct name for this compound?

Accepted Answer

Nitrogen monoxide

Question 19

Which of the following is the correct formula for 'trisilicon tetranitride'?

Accepted Answer

$$\mathrm{Si_3N_4}$$

Question 20

A chemist is asked to name the compound $$\mathrm{P_4S_{10}}. $$What is the correct name?

Accepted Answer

Tetraphosphorus decasulfide

Study Notes: Ionic and Molecular Compounds (Chapter 6, GOB Chemistry)

Study Guide - Practice Questions