Rubidium Carbonate and Aqueous Reactions

The video tutorial explains the reaction of rubidium carbonate (Rb2CO3) with water. It begins by introducing rubidium carbonate as an ionic compound and discusses its solubility in water based on solubility rules. The tutorial then details the dissociation of rubidium carbonate into ions when dissolved in water. The chemical equation for the reaction is presented, along with alternative ways to represent it, emphasizing the aqueous state of the ions.

What is the state of rubidium carbonate when it is initially added to water?

• Aqueous

• Solid

• Liquid

• Gas

What type of compound is formed by rubidium and carbonate ions?

• Metallic compound

• Molecular compound

• Ionic compound

• Covalent compound

According to solubility rules, why is rubidium carbonate soluble in water?

• Because it is a Group 2 element

• Because it is a non-metal

• Because it is a transition metal

• Because it is a Group 1 element

What is the charge of the rubidium ion after dissociation in water?

• 2+

• 1+

• 1-

• 2-

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

• Four

• Three

• Two

• One

What is the charge of the carbonate ion in the dissociation process?

• 2-

• 1+

• 2+

• 1-

In the reaction equation, how is water often represented?

• As a gas

• Above the arrow

• As a reactant

• As a solid

What does 'aq' stand for in the context of the reaction?

• Aqua

• Aquifer

• Aquatic

• Aqueous

What is the final product of the reaction between rubidium carbonate and water?

• Rb2CO3

• CO2

• Rb+ and CO3 2-

• H2O