Ionic Compounds

Question 1

What is an ionic compound?

Answer 1

An ionic compound is a chemical compound made up of ions held together by electrostatic forces called ionic bonding.

Question 2

True or False: Ionic compounds are formed between metals and nonmetals.

Answer 2

True

Question 3

What type of bond is present in ionic compounds?

Answer 3

Ionic bonds

Question 4

Fill in the blank: Ionic compounds typically have ______ melting and boiling points.

Answer 4

high

Question 5

Which of the following is an example of an ionic compound? A) H2O B) NaCl C) CH4

Answer 5

B) NaCl

Question 6

What is the charge of sodium ion (Na+)?

Answer 6

Positive one (+1)

Question 7

What happens to the electrons during the formation of ionic bonds?

Answer 7

Electrons are transferred from one atom to another.

Question 8

True or False: Ionic compounds conduct electricity when dissolved in water.

Answer 8

True

Question 9

What is the chemical formula for calcium chloride?

Answer 9

CaCl2

Question 10

Define lattice energy.

Answer 10

Lattice energy is the energy released when gaseous ions combine to form an ionic solid.

Question 11

Fill in the blank: The strength of an ionic bond is influenced by the ______ of the ions involved.

Answer 11

charge and size

Question 12

What is the typical state of ionic compounds at room temperature?

Answer 12

Solid

Question 13

Which ion is formed when chlorine gains an electron?

Answer 13

Chloride ion (Cl-)

Question 14

Multiple choice: Which property is NOT characteristic of ionic compounds? A) High melting point B) Electrical conductivity in solid state C) Solubility in water

Answer 14

B) Electrical conductivity in solid state

Question 15

What is the result of the interaction between cations and anions in ionic compounds?

Answer 15

Formation of a crystal lattice structure.

Question 16

True or False: Ionic compounds are typically brittle.

Answer 16

True

Question 17

What is the role of the octet rule in the formation of ionic compounds?

Answer 17

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

Question 18

What type of ions do metals form in ionic compounds?

Answer 18

Cations

Question 19

What type of ions do nonmetals form in ionic compounds?

Answer 19

Anions

Question 20

Fill in the blank: The formula unit of an ionic compound represents the simplest ______ of ions in the compound.

Answer 20

ratio

Question 21

What is the formula for the ionic compound formed between magnesium and oxygen?

Answer 21

MgO

Question 22

True or False: Ionic compounds are always soluble in organic solvents.

Answer 22

False

Question 23

What is the effect of ionic size on lattice energy?

Answer 23

Smaller ions typically result in higher lattice energy.

Question 24

Define a polyatomic ion.

Answer 24

A polyatomic ion is a charged species composed of two or more atoms bonded together.

Question 25

What is the charge of the sulfate ion (SO4^2-)?

Answer 25

Negative two (-2)

Question 26

Which of the following ionic compounds is soluble in water? A) BaSO4 B) NaCl C) AgCl

Answer 26

B) NaCl