Ответы и объяснения

  • ChrisV3
  • почетный грамотей
2013-09-17T12:11:24+00:00
P2O5; P = +5; O = -2
HClO3; H = +1; Cl = +5; O = -2
HClO4; H = +1; Cl = +7; O = -2
Na3N; Na = +1; N = -3
H3PO4; H = +1; P = +5; O = -2
K2SO4; K = +1; S = +6; O = -2
Mg(NO3)2; Mg = +2; N = +5; O = -2
Fe2(SO4)3; Fe = +3; S = +6; O = -2
K2Cr2O7; K = +1; Cr = +6; O = -2
Ca3(PO4)2; Ca = +2; P = +5; O = -2
KMnO4; K = +1; Mn = +7; O = -2
K2CrO4; K = +1; Cr = +6; O = -2