Question 1

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

Accepted Answer

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

Question 2

What is the charge on the ion formed by an element in Group 2A of the periodic table?

Accepted Answer

$$+2$$

Question 3

Which of the following compounds is ionic?

Accepted Answer

CaO

Question 4

A magnesium atom loses two electrons to form a magnesium ion. What is the electron configuration of the resulting ion?

Accepted Answer

It has the same electron configuration as neon.

Question 5

What is the formula for the compound formed between aluminum ions and oxide ions?

Accepted Answer

Al$$_2O$_3$$

Question 6

Which of the following ions is most abundant in the human body and is essential for nerve function?

Accepted Answer

Na$$^+$$

Question 7

What is the correct name for Fe(NO$$_3$$)$$_2$$?

Accepted Answer

Iron(II) nitrate

Question 8

Which of the following compounds will have the highest melting point?

Accepted Answer

KCl

Question 9

What is the formula for the compound formed between barium ions and nitrate ions?

Accepted Answer

Ba(NO$$_3$$)$$_2$$

Question 10

Which of the following is the correct systematic name for CuSO$$_4$$?

Accepted Answer

Copper(II) sulfate

Question 11

A compound contains potassium ions and sulfate ions. What is its formula?

Accepted Answer

K$$_2SO$_4$$

Question 12

Which of the following is a polyatomic ion?

Accepted Answer

NO$$_3^-$$

Question 13

What is the correct name for NaHCO$$_3$$?

Accepted Answer

Sodium bicarbonate

Question 14

Which of the following compounds is most likely to be a gas at room temperature?

Accepted Answer

NO$$_2$$

Question 15

What is the formula for the compound formed between ammonium ions and phosphate ions?

Accepted Answer

(NH$$_4$$)$$_3PO$_4$$

Question 16

Which of the following is the correct name for SnO$$_2$$?

Accepted Answer

Tin(IV) oxide

Question 17

Which of the following is an electrolyte when dissolved in water?

Accepted Answer

Na$$_2SO$_4$$

Question 18

What is the correct formula for calcium nitride?

Accepted Answer

Ca$$_3N$_2$$

Question 19

Which of the following is the correct name for HNO$$_2(aq$$)?

Accepted Answer

Nitrous acid

Question 20

Which of the following best explains why ionic compounds have high melting points?

Accepted Answer

They have strong electrostatic attractions between oppositely charged ions.

Chapter 3: Chemical Bonding and Ionic Compounds – Study Notes

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