October 2018 2 19 Report

Dobierz współczynniki w równaniach reakcji
Fe + S -----> Fe2 S3
Ca + O2 -------->CaO
Al + O2 ----------> Al2 O3
Fe + Cl2 ------------->FeCl3
N2 + O2 ----------> N2O3
Hg2 O -----------> Hg + O2
H2 + N2 -----------------> NH3
H2 + N2 ---------> NH3
H2 + Cl2 -----------> HCl
CaCl2 + Na ---------------> NaCl + Ca
H2o ---------------> H2+ O2
(te cyfry po prawej to te małe)


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