1.
а) Na, Ca, Al, F
б) P, S, C, Cl
2.
Cl, Br, I, N, Cu
3.
PH3 - P III, H I
MgO - Mg II, O II
SO3 - S VI, O II
P2O5 - P V, O II
CaH2 - Ca II, H I
Mn2O7 - Mn VII, O II
NaH - Na I, H I
Cl2O - Cl I, O II
4. K2O, BaO, FeO, Fe2O3, N2O, NO, NO2, P2O3
5. Fe2S3, CCl4, Mg3P2
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Answers & Comments
1.
а) Na, Ca, Al, F
б) P, S, C, Cl
2.
Cl, Br, I, N, Cu
3.
PH3 - P III, H I
MgO - Mg II, O II
SO3 - S VI, O II
P2O5 - P V, O II
CaH2 - Ca II, H I
Mn2O7 - Mn VII, O II
NaH - Na I, H I
Cl2O - Cl I, O II
4. K2O, BaO, FeO, Fe2O3, N2O, NO, NO2, P2O3
5. Fe2S3, CCl4, Mg3P2