Preparation of soluble salt

Which acid can fully dissociate in water?

• HCl

• HNO3

• CH3COOH

• HCOOH

What is saturated solution?

What will you start with, to make the salt copper (II) sulfate?

• Copper

• copper (II) oxide

• sulfuric acid

• hydrochloric acid

What can you observe when metal oxide is added into the acid?

• Gas bubbles

• Salt is produced

• Solid dissolves

• Water is produced

How to make sure that all the sulfuric acid reacts completely with the metal oxide?

• Metal oxide stops dissolving

• No more bubbling

• Black solid remains

• Crystal forms

Why do you filter the mixture after adding excess copper (II) oxide into the acid?

• To produce more gas bubbles

• To remove the excess copper (II) oxide

• To remove the excess acid

• To produce a saturated solution

What is the product when copper (II) oxide react with sulfuric acid?

• copper (II) sulfate

• copper (II) chloride

• copper (II) nitrate

• sulfuric oxide