May 2022 1 29 Report
Wyrównaj wzory:

a) Na2O+HCl--->NaCl+H2O
b) Cr+HCl--->CrCl3+H2
c) HgO--->Hg+O2
d) KClO3--->KCl+O2
e) Fe2O3+3C--->Fe+CO2​

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