Zadanie 1
K-Cl
Br-Mg-Br
I-Ca-I
Na-S-Na
S=Fe-S-Fe=S
O=N-O-N=O
II II
O O
Na-O-Na
O=S=O
Cl-Cr-Cl
I
Cl
Zadanie 2
K2O
K-O-K
FeO
Fe=O
PbS2
S=Pb=S
NaCl
Na-Cl
N2O3
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Zadanie 1
K-Cl
Br-Mg-Br
I-Ca-I
Na-S-Na
S=Fe-S-Fe=S
O=N-O-N=O
II II
O O
Na-O-Na
O=S=O
Cl-Cr-Cl
I
Cl
Zadanie 2
K2O
K-O-K
FeO
Fe=O
PbS2
S=Pb=S
NaCl
Na-Cl
N2O3
O=N-O-N=O