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Thermit

Authored by Rhys Davies

Chemistry

10th - 12th Grade

Used 2+ times

Thermit
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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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