The video tutorial explains the composition and dissociation of magnesium nitrate (Mg(NO3)2). It begins by identifying magnesium nitrate as an ionic compound, consisting of a metal (magnesium) and non-metals (nitrate ions). The tutorial details the ionic charges: magnesium has a 2+ charge, while each nitrate ion has a 1- charge. These charges balance to form a neutral compound. When dissolved in water, magnesium nitrate dissociates into one magnesium ion and two nitrate ions, all in aqueous form. The video concludes by summarizing the total number of ions present.

What type of compound is magnesium nitrate?

• Ionic compound

• Molecular compound

• Covalent compound

• Metallic compound

What is the ionic charge of magnesium in magnesium nitrate?

• 1+

• 2+

• 2-

• 1-

How many nitrate ions are present in magnesium nitrate?

• Four

• One

• Two

• Three

What happens to magnesium nitrate when it is dissolved in water?

• It forms a precipitate

• It remains unchanged

• It dissociates into ions

• It evaporates

What is the state of the magnesium ion after dissociation in water?

• Liquid

• Solid

• Aqueous

• Gas

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

• One

• Two

• Four

• Three

Which of the following ions is not present in the dissociation of magnesium nitrate?

• None of the above

• Sulfate ion

• Nitrate ion

• Magnesium ion