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Ķīmija 8. klasei
Gaiss
Gaiss
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Section outline
Gaisa sastāvs, moltilpums, tā aprēķināšana. Gaisa piesārņojums.
Select activity Gaisa sastāvs
Gaisa sastāvs
File
Select activity Gaisa piesārņojums
Gaisa piesārņojums
File
Select activity Ugunsdrošība.
Ugunsdrošība.
File
Select activity Vielas daudzums, masa, tilpums
Vielas daudzums, masa, tilpums
File
