WorksheetsQ2 F5 CHE 28/5
Total questions: 8
Worksheet time: 4mins
Name
Class
Date
1.
CHEMICAL CELL怎样分辨anode?
a)
ECS位子比较高
b)
ECS位子比较低
c)
battery长的
d)
battery短的
2.
怎样分辨reducing agent?
a)
捐electron
b)
收electron
3.
ELECTROLYRTIC CELL 的anode是
a)
negative terminal
b)
positive terminal
4.
Chemical cell
a)
Chemical energy to electrical energy
b)
electrical energy to Chemical energy
5.
___ OH- -> O2+ 2H2O + 4e-
a)
2
b)
3
c)
4
d)
5
6.
Cu2+ + 2e- -> Cu
a)
blue solution become paler
b)
blue solution is formed.
7.
Cu -> Cu2+ + 2e-
a)
blue solution become paler
b)
blue solution does not change
c)
blue solution is formed.
8.
pairs of metal in electrolytic cell is _____.
a)
same
b)
different
100 %
