Dŵr Byr

Quiz
•
Chemistry
•
7th - 9th Grade
•
Hard
E Evans
Used 9+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa halogen caiff ei ddefnyddio mewn cam hanfodol o drin dwr?
Fflworin
Clorin
Bromin
Iodin
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa broses sy'n tynnu solidau bach allan o ddŵr?
Gwaddodi
Hidlo
Diheintio
Fflworideiddio
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Dim ond 3% o ddŵr ar y blaned sy'n ddŵr ........
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Pan na ellir ychwanegu mwy o hydoddyn i hydoddiant, mae'r hydoddiant yn ......
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa sylwedd sy'n creu hydoddiant dirlawn gyda 60g ar 40ºC?
KNO3
KI
KCl
NaCl
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dewiswch y sylweddau sy'n achosi dŵr caled
Calsiwm Sylffad
Magnesiwm Carbonad
Sodiwm Clorid
Calsiwm Carbonad
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dewiswch y dulliau caiff wared ar ddŵr caled parhaol
Cyfnewidydd Ionau
Berwi
Ychwanegu Soda Golchi
Distyllu
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