Electrolysis Flashcards
1
Q
What does electrolysis mean?
A
Electro- Electricity.
Lys- Splitting.
T/F it means splitting a substance apart with electricity.
2
Q
What substances undergo electrolysis?
A
Ionic substances bc you need a positive and negative ion.
3
Q
WHAT ACTUALLY IS ELECTROLYSIS??????
A
Running a current around a circuit with to electrodes which dip into a solution.
4
Q
Redox reactions =
A
reduction and oxidation.
5
Q
Which goes to the cathode?
A
The positively charged ion.
6
Q
What is NaCl used in?
A
Paper making
Making bleach
7
Q
What is Cl used in?
A
Disinfecting swimming pools
8
Q
What is H used in?
A
Making margarine
9
Q
Which side do you add the electrons on if its a positive ion.
A
Original side.
10
Q
Why is electrolysis of Al so expensive?
A
V. high M.P T/P lots of E required.
So they add molten cryolite to reduce M.P
