Sodium Carbonate and Ionic Compounds

The video tutorial explains the composition and ionic nature of sodium carbonate (Na2CO3). It begins by identifying sodium carbonate as an ionic compound due to the presence of a metal (sodium) and non-metals (carbon and oxygen). The tutorial then discusses the ionic charges of sodium (1+) and the polyatomic carbonate ion (CO3 2-), emphasizing the importance of recognizing these charges for understanding chemical reactions. The video further explains how sodium carbonate dissociates in water, resulting in two sodium ions and one carbonate ion, maintaining a net charge of zero. This tutorial is presented by Dr. B.

What type of compound is sodium carbonate (Na2CO3)?

• Molecular compound

• Metallic compound

• Ionic compound

• Covalent compound

Which elements make up sodium carbonate?

• Sodium, nitrogen, and oxygen

• Sodium, hydrogen, and oxygen

• Sodium, carbon, and oxygen

• Sodium, carbon, and nitrogen

What is the ionic charge of sodium in sodium carbonate?

• 1+

• 1-

• 2-

• 2+

What is the charge of the carbonate ion (CO3) in sodium carbonate?

• 1+

• 2-

• 1-

• 2+

How many sodium ions are produced when sodium carbonate dissolves in water?

• Two

• One

• Three

• Four

What is the total number of ions formed when sodium carbonate dissociates in water?

• Two

• Three

• Four

• Five