Balance the following equatios and then wite the net ioesc oquaions (Use the lowest possible
whele mumbes coefficiets Inchude states of mates in your ans wen Use H est of undssocuind
foem Leane any extra answer blanks empty Onst any coefficients of 1) to halance equtioss. Wsite
weak dectrolytes a balanced eq balanced equation balaced egation
Solution
Ans :
The reactions are carefully balanced by equating the atoms on the left from the ones on the right.
Now the common ions on both the sides of the reaction are carefully identified and then
cancelled to get the net ionic equation.
a) The balanced equation will be given as :
2NH4CN (aq) + Au(NO3)2 (aq) = Au(CN)2 (s) + 2NH4NO3 (aq)
Net ionic equation :
2CN -
(aq) + Au 2+
(aq) = Au(CN)2 (s)
b) Balanced equation :
Al(OH)3 (s) + 3HBr (aq) = AlBr3 (aq) + 3H2O (l)
Net ionic equation :
Al(OH)3 (s) + 3H +
(aq) = Al 3+
(aq) + 3H2O (l)
c) Balanced equation :
2CH3CO2H (aq) + Ni(OH)2 (s) = Ni(CH3CO2)2 (aq) + 2H2O (l)
Net ionic equation :
2H +
(aq) + Ni(OH)2 (s) = Ni 2+
(aq) + 2H2O (l)