October 2018 1 55 Report

1.Podaj nazwę: Al2S3, Sb2S5, AlBr3, Al2O3, SnO2 podpowieć:P cyferki to indeksy.

2.Odczytaj zapisy: 2MgCl2(indeks), 3Cu, 2CuO, 3So3(indeks), 2PbS2(indeks)

z góry dzięki daje NAJ.!


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