Sodium Carbonate Properties and Reactions

The video tutorial explains how to write the Lewis structure for sodium carbonate (Na2CO3). It begins by identifying sodium as a metal and the carbonate ion as a group of nonmetals, forming an ionic compound. The tutorial describes how sodium transfers its valence electrons to the carbonate ion, resulting in an ionic bond. The video further explains the charge distribution, with sodium ions having a positive charge and the carbonate ion having a negative charge. Finally, it discusses the concept of a formula unit and how these units form a crystal structure.

What type of compound is sodium carbonate?

• Metallic compound

• Molecular compound

• Ionic compound

• Covalent compound

Which group on the periodic table does sodium belong to?

• Group 2

• Group 17

• Group 1

• Group 18

What happens to the valence electrons of sodium in sodium carbonate?

• They remain with the sodium atom.

• They are transferred to the carbonate ion.

• They are shared with the carbonate ion.

• They are lost to the environment.

How many valence electrons does each sodium atom lose in sodium carbonate?

• Two

• One

• None

• Three

What is the role of sodium in the formation of sodium carbonate?

• It gains electrons from the carbonate ion.

• It forms a covalent bond with the carbonate ion.

• It transfers electrons to the carbonate ion.

• It shares electrons with the carbonate ion.

What charge does the carbonate ion acquire after gaining electrons?

• 1+

• 2+

• 2-

• 1-

What is the result of the attraction between positive and negative charges in sodium carbonate?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

What is a formula unit in the context of sodium carbonate?

• A covalent bond

• A single atom

• A repeating pattern of ions

• A single molecule

What is the structure formed by the repeating pattern of formula units in sodium carbonate?

• Molecule

• Crystal

• Amorphous solid

• Liquid