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TGAU
Metelau ac echdynnu metelau
Part of
Cemeg
4 learner guides
Cyfres adweithedd metelau
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Test
Rhydocs i echdynnu haearn a metelau trosiannol
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Video
Test
Electrolysis ac echdynnu alwminiwm
Revise
Test
Electrolysis - cynnwys estynedig [TGAU Cemeg yn unig]
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Test