Graddfa pH & Adweithau Asid
Authored by E Evans
Chemistry
6th - 8th Grade
Used 3+ times
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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) .
7.
CATEGORIZE QUESTION
3 mins • 4 pts
Rhowch yr arbrofion yma yn y categori cywir.
Groups:
(a) Ecsothermig
,
(b) Endothermig
Copr sylffad + Sinc (+23ºC)
Dadelfeniad thermol copr carbonad (-35ºC)
Asid Hydroclorig + Sodiwm Hydrocsid (+15ºC)
Asid asorbig + sodiwm hydrogen carbonad (-10ºC)
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