Write the formula, complete ionic AND net ionic equation for the following,
a) CaCl2(aq) + K2SO4(aq)
b) Sr(OH)2(aq) + MgSO4
CaCl2(aq) + K2SO4(aq) ==> CaSO4 + 2KCl
Ca^2+(aq) + 2Cl^-(aq) + 2K^+(aq) + [SO4]^2-(aq) ==> CaSO4(s) + 2K^+(aq) + 2Cl^-(aq) is the total ionic equation.
To make that into the net ionic equation simply cancel those ions that appear on bot sides of the equation. I see 2K^+(aq) and 2Cl^-(aq) on both sides so cancel those. What's left is the net ionic equation.
Ca^2+(aq) + [SO4]^2-(aq) ==> CaSO4(s)
The 2K^+ and 2Cl^- are called spectator ions since they do not enter into the reaction. The net ionic equation is the reaction.
a) To write the complete ionic equation for the reaction between CaCl2(aq) and K2SO4(aq), you need to break down the reactants into their respective ions.
CaCl2(aq): Ca2+ (aq) + 2Cl- (aq)
K2SO4(aq): 2K+ (aq) + SO4^2- (aq)
Now, we can combine the ions to form the products:
Ca2+ (aq) + 2Cl- (aq) + 2K+ (aq) + SO4^2- (aq)
Next, we need to identify any spectator ions. Spectator ions are the ions that are present on both sides of the equation. In this case, the Cl- ions are spectator ions as they appear on both the reactant and product side.
The net ionic equation is the equation where the spectator ions are removed. Therefore, the net ionic equation for the reaction between CaCl2(aq) and K2SO4(aq) is:
Ca2+ (aq) + SO4^2- (aq) → CaSO4(s)
b) To write the complete ionic equation for the reaction between Sr(OH)2(aq) and MgSO4(aq), you need to break down the reactants into their respective ions.
Sr(OH)2(aq): Sr2+ (aq) + 2OH- (aq)
MgSO4(aq): Mg2+ (aq) + SO4^2- (aq)
Now, we can combine the ions to form the products:
Sr2+ (aq) + 2OH- (aq) + Mg2+ (aq) + SO4^2- (aq)
Similarly, we need to identify any spectator ions. In this case, the SO4^2- ions are the spectator ions as they appear on both the reactant and product side.
The net ionic equation for the reaction between Sr(OH)2(aq) and MgSO4(aq) is:
Sr2+ (aq) + 2OH- (aq) + Mg2+ (aq) → Sr(OH)2(s) + Mg(OH)2(s)
a) Formula:
CaCl2(aq) + K2SO4(aq) → CaSO4(s) + 2KCl(aq)
Complete Ionic Equation:
Ca2+(aq) + 2Cl-(aq) + 2K+(aq) + SO42-(aq) → CaSO4(s) + 2K+(aq) + 2Cl-(aq)
Net Ionic Equation:
Ca2+(aq) + SO42-(aq) → CaSO4(s)
b) Formula:
Sr(OH)2(aq) + MgSO4(aq) → SrSO4(s) + 2Mg(OH)2(aq)
Complete Ionic Equation:
Sr2+(aq) + 2OH-(aq) + Mg2+(aq) + SO42-(aq) → SrSO4(s) + 2Mg2+(aq) + 2OH-(aq)
Net Ionic Equation:
Sr2+(aq) + SO42-(aq) → SrSO4(s)