Making Copper Sulfate Crystals

Copper oxide is

• White

• Blue

• Green

• Black

The sulfuric acid was put in a

• Beaker

• Boiling tube

• Test tube

• Flask

Copper oxide is

• A base

• An acid

• Neutral

• An alkali

The amount of copper oxide added was

• half a spatula

• 1 spatula

• 2 spatulas

• Several spatulas

You have to add enough acid to make sure

• All the acid is used up

• You don't have an accident

• Nothing is wasted

• Some acid is left over

Why was hot water put in the beaker?

• To drive off fumes

• To melt the solid

• To warm your hands

• To speed up the reaction

How long was the tube left in the water bath?

• 1 minute

• 5 minutes

• 10 minutes

• 20 minutes

How could you tell a reaction had happened?

• Bubbles of gas

• Colour change

• A smell

• It got hot

In the filtration step the residue was

• copper oxide

• copper

• sulfuric acid

• copper sulfate

The filtrate was

• sulfuric acid

• copper sulfate

• copper oxide

• water