Question 1

Which of the following best describes the process by which a sodium atom becomes a sodium ion?

Accepted Answer

It loses one electron to achieve a stable octet.

Question 2

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

Accepted Answer

$$\mathrm{$$MgCl_2$$}$$

Question 3

Which of the following ions is isoelectronic with neon ($$\mathrm{Ne}$$)?

Accepted Answer

$$\mathrm{Na^+}$$

Question 4

What is the name of the compound $$\mathrm{FeO}$$?

Accepted Answer

Iron(II) oxide

Question 5

Which of the following correctly describes the formation of $$\mathrm{Na_2S}$$?

Accepted Answer

Two sodium atoms each lose one electron, and one sulfur atom gains two electrons.

Question 6

What is the correct name for $$\mathrm{Cu_2S}$$?

Accepted Answer

Copper(I) sulfide

Question 7

Which of the following formulas represents aluminum oxide?

Accepted Answer

$$\mathrm{Al_2O_3}$$

Question 8

A compound contains the ions $$\mathrm{Ca$$^{2+}$$}$$ and $$\mathrm{NO_3$^-}. $$What is its correct formula?

Accepted Answer

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

Question 9

Which of the following is the correct name for $$\mathrm{$$SnCl_2$$}$$?

Accepted Answer

Tin(II) chloride

Question 10

What is the correct formula for nickel(III) oxide?

Accepted Answer

$$\mathrm{Ni_2O_3}$$

Question 11

Which of the following statements about polyatomic ions is TRUE?

Accepted Answer

Polyatomic ions contain two or more atoms bonded together with an overall charge.

Question 12

What is the correct name for $$\mathrm{Mg(NO_3$)_2}$$?

Accepted Answer

Magnesium nitrate

Question 13

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

Accepted Answer

$$\mathrm{Na_3PO_4}$$

Question 14

Which of the following best explains why transition metals often require Roman numerals in their compound names?

Accepted Answer

They can form more than one type of positive ion.

Question 15

What is the correct name for $$\mathrm{$$SnSO_4$$}$$?

Accepted Answer

Tin(II) sulfate

Question 16

Which of the following is the correct formula for copper(I) oxide?

Accepted Answer

$$\mathrm{Cu_2O}$$

Question 17

Which of the following is the correct name for $$\mathrm{Ca(NO_3$)_2}$$?

Accepted Answer

Calcium nitrate

Question 18

A compound contains $$\mathrm{Al$$^{3+}$$}$$ and $$\mathrm{O$$^{2-}$$}$$ ions. What is the correct formula for this compound?

Accepted Answer

$$\mathrm{Al_2O_3}$$

Question 19

Which of the following is the correct name for $$\mathrm{$$CaCl_2$$}$$?

Accepted Answer

Calcium chloride

Question 20

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

Accepted Answer

Ionic bonds involve the transfer of electrons from metals to nonmetals, while covalent bonds involve the sharing of electrons between nonmetals.

Ionic and Molecular Compounds: Structure, Naming, and Formulas

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