Dŵr Byr

Dŵr Byr

7th - 9th Grade

10 Qs

quiz-placeholder

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Dŵr Byr

Dŵr Byr

Assessment

Quiz

Chemistry

7th - 9th Grade

Hard

Created by

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

Media Image

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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