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- 1. Multiple Choice
Copper oxide is
White
Blue
Green
Black
- 2. Multiple Choice
The sulfuric acid was put in a
Beaker
Boiling tube
Test tube
Flask
- 3. Multiple Choice
Copper oxide is
A base
An acid
Neutral
An alkali
- 4. Multiple Choice
The amount of copper oxide added was
half a spatula
1 spatula
2 spatulas
Several spatulas
- 5. Multiple Choice
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
- 6. Multiple Choice
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
- 7. Multiple Choice
How long was the tube left in the water bath?
1 minute
5 minutes
10 minutes
20 minutes
- 8. Multiple Choice
How could you tell a reaction had happened?
Bubbles of gas
Colour change
A smell
It got hot
- 9. Multiple Choice
In the filtration step the residue was
copper oxide
copper
sulfuric acid
copper sulfate
- 10. Multiple Choice
The filtrate was
sulfuric acid
copper sulfate
copper oxide
water
- 11. Multiple Choice
Which energy source helped evaporation?
electricity
Bunsen burner
Kettle
Sun
- 12. Multiple Choice
Crystals formed on the
watch glass
stirring rod
test tube
beaker
- 13. Multiple Choice
The correct order for the processes used is
crystallise/filter/evaporate/neutralise
neutralise/evaporate/crystallise/filter
filter/crystallise/neutralise/evaporate
neutralise/filter/evaporate/crystallise
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