10. Побудувати формули речовин за відомими валентностями. Аl (III) N (III) N (III) I (I) Ba (II) P (III) P (V) N (III) Br (I) I (I) Si (IV) C (IV) Cl (VII) F (I) Zn (II) S (II) Cr (VI) S (II)
Даю 50 баллів​
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