Cydbwyso Hafaliadau
Authored by E Evans
Chemistry
7th - 10th Grade
Used 169+ times
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10 questions
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1.
FILL IN THE BLANKS QUESTION
45 sec • 1 pt
2Li + 2H2O --> (a) LiOH + H2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4Na + O2 --> ____Na2O. Pa rhif bydd angen mynd o flaen y sodiwm ocsid?
1 (dim)
2
3
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
____Na + O2 --> 2Na2O. Pa rhif bydd angen mynd o flaen y sodiwm?
1 (dim)
2
3
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4Na + O2 --> 2Na2O. Pa rhif bydd angen mynd o flaen y ocsigen?
1 (dim)
2
3
4
5.
FILL IN THE BLANKS QUESTION
45 sec • 1 pt
2Fe + (a) Cl2 --> 2FeCl3
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
MgI2 + (a) AgNO3 --> 2AgI + Mg(NO3)2
7.
FILL IN THE BLANKS QUESTION
45 sec • 1 pt
ZnSO4 + Mg --> MgSO4 + (a) Zn
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