Какое уравнение реакций неверно?
А)CrCl2+2NaOH
->Cr(OH)2+2NaCl
B)Cr(OH)2->CrO+H2O
C)CrO+2NaOH
->Na2CrO2+H2O
D)2CrCl2+2H2O
->2Cr(OH)Cl2+H2
E)4Cr (OH)2+O2+2H2O->4Cr (OH)3
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