February 2019 0 21 Report
1.
Napisz reakcję analizy :
a)
K2O ->
b)
FeBr2 ->
c)
Al3O2 ->
2. Oblicz masy cząsteczkowe (Ca-40u , cl-35u, h-1, s-22
a)CaCl2
b)H2So4

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