Electrolysis Flashcards
0
Q
What does reduction mean?
A
Gaining electrons.
1
Q
What is electrolysis?
A
The use of electricity to break down a substance.
2
Q
What is oxidation?
A
Losing electrons.
3
Q
What charge do metals have?
A
Positive +
4
Q
What charge does non-metals have?
A
Negative -
5
Q
What electrode does negatively charged elements go to?
A
Positive.
6
Q
What electrode does positively charged elements go to?
A
Negative.
7
Q
What does soluble mean?
A
Can be dissolved in water.
8
Q
When a substance is dissolved in water what is it called?
A
A solution.
9
Q
What other elements are present in a solution?
A
OH- and H+
10
Q
What does H+ indicate?
A
Acid
11
Q
What does OH- indicate?
A
Alkali.
12
Q
What is the half equation for copper chloride?
A
Copper + __ +E-__Copper
13
Q
What is the use of cryolite during electrolysis?
A
Lowers the melting point
