Zadanie 268
a) CrCl3+3 NaOH--->Cr(OH)3↓+3 NaCl
Cr3+ +3 OH- --->Cr(OH)3↓
b) Cr(OH)3+3 NaOH--->Na3[Cr(OH)6]
Cr(OH)3 +3 OH- --->Cr(OH)6 3-
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Zadanie 268
a) CrCl3+3 NaOH--->Cr(OH)3↓+3 NaCl
Cr3+ +3 OH- --->Cr(OH)3↓
b) Cr(OH)3+3 NaOH--->Na3[Cr(OH)6]
Cr(OH)3 +3 OH- --->Cr(OH)6 3-