Ionic Compounds and Aqueous Solutions

The video tutorial explains the chemical reaction between sodium carbonate (Na2CO3) and water (H2O). It begins by introducing the components of the reaction, highlighting sodium as a metal and carbonate as a polyatomic ion. The tutorial then delves into the concept of ionic compounds, explaining how metals and nonmetals form these compounds. The video further discusses the ionic charges of sodium and carbonate ions, and how sodium carbonate dissociates in water. It also covers the balancing of the chemical equation, emphasizing the need for coefficients to balance the ions. The tutorial concludes with a summary of the reaction and its components.

What type of ion is the carbonate ion considered to be?

• Anion

• Cation

• Monatomic ion

• Polyatomic ion

What is the ionic charge of sodium as found in the periodic table?

• +1

• 0

• +2

• -1

What is the charge of the carbonate ion?

• -1

• +3

• -2

• +1

When sodium carbonate is dissolved in water, what ions are formed?

• Na+ and CO2

• Na2+ and CO3-

• Na+ and CO3 2-

• Na2+ and CO2

How many sodium ions are produced from one formula unit of sodium carbonate?

• Four

• Three

• Two

• One

What does the term 'aqueous' signify in a chemical equation?

• Solid state

• Liquid state

• Dissolved in water

• Gaseous state

Why is it unnecessary to write H2O on the product side of the equation?

• Because it is a reactant

• Because it is a solid

• Because it is already implied by 'aqueous'

• Because it is a gas