Ionic Compounds in Aqueous Solutions

The video tutorial explains how ionic compounds dissolve in water, breaking into ions. It covers writing balanced disassociation equations and provides examples with lithium nitrate, aluminum nitrate, and others. Viewers are encouraged to practice writing these equations and check their work.

What happens to an ionic compound when it dissolves in water?

• It remains unchanged.

• It evaporates.

• It disassociates into ions.

• It forms a new compound.

Which ions are formed when lithium nitrate dissolves in water?

• Magnesium ion and chloride ion

• Lithium ion and nitrate ion

• Lithium ion and sulfate ion

• Sodium ion and nitrate ion

What is the charge on the aluminum ion when aluminum nitrate dissolves in water?

• +2

• +1

• +3

• -1

How many nitrate ions are produced from one formula unit of aluminum nitrate?

• One

• Two

• Three

• Four

When hydrogen phosphate dissolves, how many hydrogen ions are released?

• Two

• Four

• One

• Three

What ion is formed alongside hydrogen ions when hydrogen phosphate dissolves?

• Chloride ion

• Nitrate ion

• Phosphate ion

• Sulfate ion

What ions are formed when magnesium chloride dissolves in water?

• Sodium ion and chloride ion

• Magnesium ion and sulfate ion

• Iron ion and nitrate ion

• Magnesium ion and two chloride ions

What is the charge on the iron ion in iron(III) nitrate?

• +2

• +3

• +1

• -3

How many nitrate ions are associated with one iron ion in iron(III) nitrate?

• Three

• Four

• One

• Two

When sodium sulfate dissolves, what ions are formed?

• One sodium ion and one sulfate ion

• Two sodium ions and one sulfate ion

• One sodium ion and two sulfate ions

• Two sodium ions and two sulfate ions