
2.3 Echdynnu metelau
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
eleri lewis
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31 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beth yw cyfansoddyn metel y mwyn halen craig?
sodiwm clorid
alwminiwm ocsid
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beth yw cyfansoddyn metel y mwyn bocsit?
sodiwm clorid
alwminiwm ocsid
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Pa rhai o'r fetelau yma gallwn canfod yn naturiol?
aur
arian
sinc
magnesiwm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa metelau caiff eu hechydynnu drwy electrolysis?
Y metelau mwyaf adeithiol
Y metelau lleiaf adweithiol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa metelau gallwn rhydwytho yn gemegol?
Y metelau mwyaf adweithiol
Y metelau lleiaf adweithiol
Y metelau tua canol y cyfres
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Gellir dangos adweithedd cymharol metelau drwy adweithiau _________
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sut ydy mwyn haearn yn cael ei ddefnyddio yn y ffwrnais chwyth?
ffynhonnell o haearn
fel tanwydd ac er mwyn cynhyrchu carbon monocsid ar gyfer y broses rydwytho
er mwyn cael gwared ar amhureddau (ffurfio slag)
yn darparu ocsigen fel y gall y golosg llosgi
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