October 2018 1 22 Report

chemia DAM NAJ

..........+..............=FeCl^3

CuO-->........+..............

CuO+Mg-->.......+........

CaCl^2-->..........+............

K+S-->......................

Cr^2 O^3+Na-->.............+............

2.Oblicz zawartość procentową pierwiastku siarczku glinu.

3.Zapisz za pomocą symboli i wzorów

5cząsteczek tlenku glinu-

cząsteczka siarczku sodu-


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