
Grwp I a Grwp VII
Authored by E Evans
Chemistry
8th - 10th Grade
Used 43+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cywir neu'n Anghywir - mae adweithedd grŵp 1 yn cynyddu wrth fynd lawr y grŵp.
Cywir
Anghywir
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa un o'r elfennau grŵp 1 isod yw'r mwyaf adweithiol?
Lithiwm
Sodiwm
Potasiwm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beth yw'r nwy (y swigod) sy'n ffurfio wrth i elfennau grŵp 1 adweithio gyda dŵr?
Ocsigen
Carbon Deuocsid
Hydrogen
Clorin
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa elfen sy'n mynd ar dân (cynhyrchu fflâm lelog) wrth adweithio gyda dŵr?
Lithiwm
Sodiwm
Potasiwm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa elfen sy'n ymdoddi i siâp pêl wrth adweithio gyda dŵr?
Lithiwm
sodiwm
potasiwm
magnesiwm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beth yw'r hafaliad cywir ar gyfer adwaith sodiwm gyda dŵr?
Na + H2O --> NaOH + H
2Na + H2O --> 2NaOH
2Na + 2H2O --> 2NaOH + H2
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dewiswch yr arsylwadau y byddech yn gweld wrth i lithiwm adweithio gyda dŵr
Eferwi
Symud o gwmpas
Suddo
Fflam
Troi dangosydd cyffredinol yn las
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