Alkali

The video explains that alkalis are formed when soluble chemical bases dissolve in water. It highlights that bases are typically metal hydroxides, oxides, and carbonates, but not all bases can produce alkalis as many are insoluble in water.

What happens when a soluble chemical base dissolves in water?

• It forms an acid.

• It forms an alkali.

• It forms a salt.

• It forms a gas.

Which of the following is typically considered a base?

• Metal hydroxide

• Salt

• Non-metal oxide

• Organic acid

Which of these is NOT a type of base?

• Non-metal carbonate

• Metal carbonate

• Metal oxide

• Metal hydroxide

Why can't all bases produce alkalis?

• Because some are insoluble in water.

• Because they are all insoluble in water.

• Because they react with acids.

• Because they are all soluble in water.

What is a characteristic of many bases?

• They are all soluble in water.

• They are all acids.

• They are insoluble in water.

• They are all gases.