Question

Using what you have learned about the three forms of writing chemical equations, classify each of the presented equations as either a molecular equation, a complete ionic equation, or a net ionic equation.

(a) Ca2+(aq) + SO42−(aq)→ CaSO4(s)
(b) CuSO4(aq) + 2KOH(aq)→ Cu(OH)2(s) + K2SO4(aq)
(c) Ba2+ (aq) + SO42−(aq)→ BaSO4(s)
(d) Ag+(aq) + NO3−(aq) + I−(aq)→ AgI(s) + NO3−(aq)

Answer 1

Explanation:

Molecular equation: Chemical equation in which molecular formula of reactants and products are written

Complete ionic equation:Chemical equation in which ionic from if reactants reactants and products are written along with spectator ions (ions present on both sides of equation).

Net ionic equation :Chemical equation in which only ions of those reactant are written which giving product without  spectator ions (ions present on both sides of equation).

(a) $Ca^{2+}(aq) + SO_4^{2-}(aq)\rightarrow CaSO_4(s)$

net ionic equation.

(b) $CuSO_4(aq) + 2KOH(aq)\rightarrow Cu(OH))_2(s) + K_2SO_4(aq)$

Molecular equation

(c)$Ba^{2+} (aq) + SO_4^{2-}(aq)\rightarrow BaSO_4(s)$

Net ionic equation.

(d) $Ag^+(aq) + NO_{3}^-(aq) + I^-(aq)\rightarrow AgI(s) + NO_{3}^-(aq)$

Complete ionic equation