II gimnazjum

Chemia Nowej Ery 2

Chemia

Chemia Nowej Ery 1

Chemia Nowej Ery 2 

Chemia w zadaniach i przykładach

Ciekawa chemia 2

Świat chemii 2

Świat chemii 2a

Świat chemii 2b

Zbiór prostych zadań z chemii dla uczniów gimnazjum

Dane: V=250cm3 d=1,307cm3g​ ms​=130,7g

W−SO2​ X−SO3​

Kwas siarkowy(VI) jest silnie higroskopijny.

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