What do you know about electrolysis?

Have a go!

Click the radio button next to the answer you think is correct.

1. An electric current is
a flow of electrons     a flow of water     a flow of raisins       a flow of invective
2. Match the property below with one of the follow units: A. g dm-3 B. ampere  C volt   D ohm
amp
 A B C D
volt
 A B C D
resistance
 A B C D
concentration of solution
 A B C D
3. The formula of copper(II) sulphate is:
 Cu2SO4 CuSO4 Cu(SO4)2  Cu(SO4)3
4. Copper(II) sulphate contains Cu2+ ions and SO42- ions

True

False
5. The (II) in the name copper(II) sulphate means that each ion of copper has 2 extra electrons.

True

False
6. The anode
carries the current into the solution
has a positive charge
is where oxidation takes place
is where electrons are given away
7. Hydrogen ions (H+) move to the anode during electrolysis True

False
8. Hydroxide ions (OH-) move to the anode duriong electrolysis True

False
9. Electrolysis means
the decomposition of an electrolyte by electric current
the passage of electric current through a solution
warming a solution with electric current
removing hair from the legs using electric current

(attempted  maximum 11)

The rest of this set of activites will help you understand more about the process of electrolysis.  Go to the next activity
 

Materials Teaching Educational Resources
© 1999 MATTER Project, The University of Liverpool

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