Определить валентность
K₂O,Mn2O7, NH3, P205, Al2O3,
CO, CO2, CH4
qwerty5543
2
12.01.2021 19:13
1
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Объяснение:
K(I)O(II)
Mn(VII)O(II)
N(III)H(I)
P(V)O(II)
Al(III)O(II)
C(II)O(II)
C(IV)O(II)
C(IV)H(I)