Aluminum Hydroxide Properties and Reactions

The video explores the behavior of aluminum hydroxide (Al(OH)3) in water. Initially, it is expected to dissolve due to its ionic nature, breaking into aluminum and hydroxide ions. However, a solubility table reveals that aluminum hydroxide is insoluble, meaning it will not dissolve significantly in water. The video concludes with a summary of these findings.

What is the chemical formula for aluminum hydroxide?

• Al2O3

• AlOH

• AlOH3

• Al(OH)3

What charge does the aluminum ion carry in aluminum hydroxide?

• 3+

• 4+

• 2+

• 1+

How many hydroxide ions are present in aluminum hydroxide?

• 1

• 2

• 3

• 4

What does the 'aq' symbol indicate in a chemical equation?

• Solid

• Gas

• Aqueous

• Liquid

What tool can be used to check the solubility of a compound?

• Periodic Table

• Solubility Table

• Molecular Chart

• Chemical Equation

What does the 'i' symbol in a solubility table indicate?

• Insoluble

• Inert

• Ionic

• Isolated

What happens to aluminum hydroxide when placed in water according to the solubility table?

• It remains insoluble

• It forms a gas

• It reacts violently

• It dissolves completely

What is the appearance of aluminum hydroxide when it is not dissolved?

• Clear liquid

• White powder

• Colorless gas

• Blue crystals

What is the main reason aluminum hydroxide does not dissolve in water?

• It is a metal

• It is insoluble

• It is a gas

• It is too reactive

What is the role of Dr. B in the video?

• Mathematics tutor

• Biology researcher

• Physics professor

• Chemistry teacher