1. Consider the reaction when aqueous solutions of cobalt(II) sulfate and potass

Question

1.

Consider the reaction when aqueous solutions of cobalt(II) sulfate and potassium nitrate are combined. The net ionic equation for this reaction is:

2. Consider the reaction when aqueous solutions of nickel(II) bromide and sodium hydroxide are combined. The net ionic equation for this reaction is:

3. Consider the reaction when aqueous solutions of barium hydroxide and sodium acetate are combined. The net ionic equation for this reaction is:

___(aq)(s)(l)(g)

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Explanation / Answer

1.when aqueous solutions of cobalt(II) sulfate and potassium nitrate are combined. The net ionic equation for this reaction is:

Solution :- Balanced reaction equation

CoSO4(aq) + 2KNO3(aq) ------ > Co(NO3)2(aq) + K2SO4(aq)

Here both products and reactants are soluble so they all are spectator ions means no net ionic equation.

2. when aqueous solutions of nickel(II) bromide and sodium hydroxide are combined. The net ionic equation for this reaction is:

Solution :-

Balanced reaction equation

NiBr2(aq) + 2NaOH(aq) -------- > Ni(OH)2(s) + 2NaBr(aq)

Here Na^+ and Br^-are spectator ions

So the net ionic equation is as follows

Ni^2+(aq) + 2OH^-(aq) ----- > Ni(OH)2(s)

3. when aqueous solutions of barium hydroxide and sodium acetate are combined. The net ionic equation for this reaction is:

Solution

Balanced reaction equation

Ba(OH)2(aq) + 2NaCH3COO(aq) ------- > Ba(CH3COO)2(aq) + 2NaOH(aq)

Here both reactant and products are soluble

Therefore no net ionic equation .

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