
Thermit
Authored by Rhys Davies
Chemistry
10th - 12th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Beth allwch chi weld wrth i'r adwaith thermit digwydd?
Swigod
Fflach llachar
Dim newid
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Beth yw cynhyrchion yr adwaith thermit?
Ocsigen + Alwminiwm
Haearn Ocsid + Alwminiwm
Haearn + Alwminiwm Ocsid
Haearn + Alwminiwm
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Beth yw'r metel poeth sy'n cwympo i'r tywod?
Lithiwm
Aur
Alwminiwm
Haearn
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pa fetel sy'n fwy adweithiol nag alwminiwm?
Lithiwm
Sinc
Tun
Plwm
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pa hafaliad sy'n gytbwys am yr adwaith thermit?
Al + 2Fe2O3 → 2Fe + Al2O3
Al + Fe2O3 → 2Fe + Al2O3
2Al + Fe2O3 → 2Fe + Al2O3
2Al + Fe2O3 → Fe + 2Al2O3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ydy'r adwaith yn ecsothermig neu endothermig?
Ecsothermig
Endothermig
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Beth sy'n digwydd i'r bondiau cemegol yn yr haearn ocsid wrth iddo adweithio?
Ffurfio
Torri
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