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Mendeleev kestesindegi birinshi element
vodorod
kislorod
uglerod
kaliy
Metallemeslerdi belgilen
Al
Li
H
O
H2OH_{2_{ }}OH2O Bul qaysi zattin formulasi?
Suw
As duzi
Hak tasi
Kislorod
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4 questions
7-sinf I chorak
Worksheet
•
7th Grade
Ximiya aralas test