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a) 2HgO = 2Hg + O2 ;
b) 2Ag2O = 4Ag + O2;
c) Fe2O3 + 3C = 2Fe + 3CO;
d) 2Al + 3Cl2 = 2AlCl3;
e) 6K + 2H3PO4 = 2K3PO4 + 3H2.
Z poszanowaniem : zbigniew63.
g) 2 Ag₂O -------> 4 Ag + O₂
h) Fe₂O₃ + 3 C -----> 2 Fe + 3 CO
i) 2 Al + 3 Cl₂ ----> 2 AlCl₃
j) 6 K + 2 H₃PO₄ -----> 2 K₃PO₄ + 3 H₂