October 2018 2 20 Report

Dobierz współczynniki stechiometryczne w równaniach chemicznych.

a) ...C+...S-->...CS2...

b) ...Al+...P-->...Al4P3

c) ...Na+...O2-->Na2O

d) ...Zn+...O2__>ZnO

e) ...Fe+...O2-->...Fe2O3

f) ...CO2+...Mg-->...MgO+C

g) ...N2+...H2-->NH3


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