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Скласти формули бінарних сполук, якщо ступінь окиснення: H(+)S(-2), Al(+3)O(-2), P(+5)O(-2), Ba(+2)I(-1), Ag(+1)O(-2), S(+6)O(-2), Mn(+1)O(-2), Cr(+3)O(-2), As(+5)O(-2)
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