Question 1

Which of the following statements best describes the difference between ionic and covalent bonds?

Accepted Answer

Ionic bonds involve the transfer of electrons from a metal to a nonmetal, while covalent bonds involve the sharing of electrons between two nonmetals.

Question 2

Which of the following compounds is an example of a covalent compound?

Accepted Answer

CO\_2

Question 3

According to the octet rule, how many valence electrons do atoms (other than hydrogen) generally seek to have in their outer shell?

Accepted Answer

$$8$$

Question 4

Which of the following elements exists as a diatomic molecule in nature?

Accepted Answer

Nitrogen ($$N_2)$$

Question 5

What is the correct chemical formula for a compound formed between $$Al^{3+}$$ and $$SO_4$$^{2-}$$?

Accepted Answer

$$Al_2$$($$SO_4)_3$

Question 6

Which of the following best describes a polyatomic ion?

Accepted Answer

An ion that contains more than one atom covalently bonded together and carries a charge.

Question 7

What is the name of the compound $$Fe_2$$($$CO_3)_3$?

Accepted Answer

Iron(III) carbonate

Question 8

Which of the following is the correct name for $$N_2O_4$$?

Accepted Answer

Dinitrogen tetroxide

Question 9

A patient is given a medication containing $$Mg^{2+}$$ and $$P^{3-}. $$What is the correct formula for the compound formed by these ions?

Accepted Answer

$$Mg_3P_2$$

Question 10

Which of the following statements about ionic compounds is TRUE?

Accepted Answer

Ionic compounds have an overall neutral charge.

Question 11

Which of the following pairs will form a polar covalent bond?

Accepted Answer

H and O

Question 12

What is the correct name for $$SO_3$$?

Accepted Answer

Sulfur trioxide

Question 13

Which of the following best explains why $$NaCl is $$neutral overall?

Accepted Answer

Because the total positive charge of $$Na^+$$ equals the total negative charge of $$Cl^-.$$

Question 14

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

Accepted Answer

$$Ca(NO_3$)_2$$

Question 15

Which of the following compounds contains a polyatomic ion?

Accepted Answer

$$K_2SO_4$$

Question 16

What is the correct name for $$PCl_5$$?

Accepted Answer

Phosphorus pentachloride

Question 17

Which of the following best describes electronegativity?

Accepted Answer

The ability of an atom to attract electrons in a chemical bond.

Question 18

Which of the following is the correct formula for chromium(III) sulfate?

Accepted Answer

$$Cr_2$$($$SO_4)_3$

Question 19

A sample contains $$CO_2$$ and $$H_2O. $$Which type of bonding is present in both compounds?

Accepted Answer

Covalent bonding

Question 20

Which of the following is the correct name for $$Ag_2CO_3$$?

Accepted Answer

Silver carbonate

Ionic and Molecular Compounds: Structure, Naming, and Properties

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