Barium Hydroxide and Its Properties

The video tutorial explains whether barium hydroxide (BaOH2) is an acid, base, or neutral. It is identified as a base, specifically a strong base, due to its complete dissociation in water into barium ions and hydroxide ions. The tutorial emphasizes the importance of memorizing strong acids and bases and explains the dissociation process in detail.

What type of compound is Ba(OH)2?

• A base

• An acid

• Neutral

• A salt

What is the significance of the hydroxide group in Ba(OH)2?

• It makes the compound acidic

• It indicates the compound is a base

• It makes the compound neutral

• It has no significance

Why is it important to memorize strong acids and bases?

• They are weak and unstable

• They are commonly used in reactions

• They are rarely encountered

• They do not dissociate in water

What happens when barium hydroxide is placed in water?

• It forms a precipitate

• It completely dissociates

• It partially dissociates

• It remains undissolved

What ions are formed when Ba(OH)2 dissociates in water?

• Barium ions and sulfate ions

• Barium ions and chloride ions

• Barium ions and hydroxide ions

• Hydrogen ions and hydroxide ions

What is the charge of the barium ion after dissociation?

• 1-

• 2-

• 2+

• 1+

What is the charge of the hydroxide ion?

• 1+

• 2+

• 2-

• 1-

What does the term 'aqueous' indicate about the ions?

• They are dissolved in water

• They are gaseous

• They are in a vacuum

• They are solid

How is barium hydroxide classified in terms of its strength as a base?

• Weak base

• Acidic

• Strong base

• Neutral