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Graddfa pH & Adweithau Asid

Authored by E Evans

Chemistry

6th - 8th Grade

Used 3+ times

Graddfa pH & Adweithau Asid
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7 questions

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1.

HOTSPOT QUESTION

1 min • 1 pt

Ble mae asid cryf ar y raddfa?

2.

HOTSPOT QUESTION

1 min • 1 pt

Ble mae asid gwan ar y raddfa?

3.

HOTSPOT QUESTION

1 min • 1 pt

Ble mae niwtral ar y raddfa?

4.

HOTSPOT QUESTION

1 min • 1 pt

Ble mae alcali gwan ar y raddfa?

5.

HOTSPOT QUESTION

1 min • 1 pt

Ble mae alcali cryf ar y raddfa?

6.

DROPDOWN QUESTION

3 mins • 4 pts

Mae llaeth yn asid gwan, felly mae ganddo pH o ​ (a)   tra bod yr asid sydd yn eich stumog llawer mwy cryf (pH o ​ (b)   ). Os ychwanegir alcali at rhain, fe fydd y pH yn cynyddu nes eu bod yn niwtral (pH ​ (c)   ). Yr enw ar y math hwn o adwaith yw ​ (d)   .

6
1
7
niwtralu
12
14
8
ocsidio
hylosgi
dadleoli

7.

CATEGORIZE QUESTION

3 mins • 4 pts

Rhowch yr arbrofion yma yn y categori cywir.

Groups:

(a) Ecsothermig

,

(b) Endothermig

Copr sylffad + Sinc (+23ºC)

Asid asorbig + sodiwm hydrogen carbonad (-10ºC)

Asid Hydroclorig + Sodiwm Hydrocsid (+15ºC)

Dadelfeniad thermol copr carbonad (-35ºC)

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