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Asidau, Alcalïau a Dangosyddion

Authored by Kathryn Roberts

Science

10th Grade

Asidau, Alcalïau a Dangosyddion
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Beth yw pH hydoddiant niwtral?

Llai na 7

7

Dim pH

Mwy na 7

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pa ïonau sy'n cael eu cynhyrchu pan mae asidau'n hydoddi mewn dŵr?

ïonau hydrogen, H+

ïonau clorid, Cl–

ïonau hydrocsid, OH–

ïonau sodiwm, Na+

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pa liw mae dangosydd cyffredinol yn newid i mewn hydoddiant asidig?

Glas

Melyn

Coch

Gwyrdd

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Beth yw'r adwaith rhwng ïonau H+ ac ïonau OH–?

Adwaith ecsothermig

Adwaith niwtraleiddio

Adwaith endothermig

Adwaith dadelfennu

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pa gynnyrch sy'n ffurfio pan mae asidau'n adweithio â metelau adweithiol?

Dŵr

Halwyn a hydrogen

Carbon deuocsid

Ocsigen

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pa fath o adwaith yw adwaith metelau ag asidau?

Endothermig

Ecsothermig

Niwtraleiddio

Dadelfennu

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Beth yw'r cynnyrch pan mae asidau'n adweithio â hydrocsidau metel?

Dim cynnyrch

Dŵr a carbon deuocsid

Halwyn a hydrogen

Halwyn a dŵr

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