July 2023 1 2 Report
Odczytaj i oblicz M molowy:
a)Br b)Fe2O3 c)Se d)Mn2O7

Oblicz masę:
a) 5m HNO2 b) 4moli HNO3

Ile to moli:
a)37g CaO b)10g SO3

Ile cząsteczek znajduje się w:
a)490g H2SO4 b)350g Ca(OH)2

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