Page 85 - 6273
P. 85
CONTROL TASKS
1. Finish the reactions equation and equate using the method of electronic
balance:
MgCl 2 + Ni → Al + H 2SO 4(routine.) →
Zn + NaOH → Fe + H 2O →
CоCl 2 + Cr → Fe + HNO 3 (conc.). →
Al + NaOH + H 2O → K + H 2O →
2. What processes occur on inert electrodes during:
a) the electrolysis of molten potassium bromide;
b) the electrolysis of nicol (II) sulphate aqueous solution?
85
