
3.1 Hanner Hafaliadau
Authored by E Evans
Chemistry
9th - 12th Grade
Used 5+ times

AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
10 questions
Show all answers
1.
MATCH QUESTION
5 mins • 5 pts
Cysylltwch y gell gyda'r lliw
Di-liw
Mn2+ + 4H2O
Oren
I2 + 2e-
Porffor tywyll
2Cr3+ + 7H2O
Brown
MnO4- + 8H+ + 5e-
Gwyrdd
Cr2O72- + 14H+ +6e-
2.
CATEGORIZE QUESTION
5 mins • 6 pts
Rhowch yr adweithyddion yn y categori cywir.
Groups:
(a) Ocsidyddion
,
(b) Rhydwythyddion
Fe2+
MnO4-
O2
C2O42-
I-
Br2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
I2 + ?? --> 2I-
e-
2e-
2p+
p+
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
MnO4- + 8H+ +5e- --> Mn2+ + ????
(a)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cr2O72- + 14H+ 6e- --> ?
2Cr3+ + 7H2O
2CrO4- + 4H2 + 3H2O
2Cr6+ + 7H2O
2CrO2 + 5H2O + 2H2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
???? --> Fe3+ + e-
Fe
Fe+
Fe2+
7.
MATCH QUESTION
5 mins • 10 pts
Parwch nifer yr electronau i'r elfennau.
(Bydd cyflyrau ocsidiad yn helpu)
2e-
O2 + ?? --> 2O2-
4e-
2S2O32- --> S4O62- + ???
1e-
Cr2O72- + 14H+ + ??? --> 2Cr3+ + 7H2O
6e-
Fe2+ --> Fe3+ + ???
5e-
MnO4- + 8H+ + ??? --> Mn2+ + 4H2O
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
Already have an account?