How do I write a complete ionic equation and net ionic equation for: 2HCl(aq)+Ca(OH)2(aq) �¨ 2H2O(l)+CaCl2(aq) ?
Separate the compounds, if they are ionic, into ions. You add the (aq) and (l) and I'll do the remainder.
2H^+ + 2Cl^- + Ca^2+ + 2OH^- ==> 2H2O(l) + Ca^2+ + 2Cl^-
You can turn this into a net ionic equation by canceling the items common to both sides. So you cancel 2Cl^- and Ca^2+ which leaves you with
2H^+(aq) + 2OH^-(aq) ==> 2H2O(l)
To write the complete ionic equation and net ionic equation for the reaction between 2HCl(aq) and Ca(OH)2(aq) to form 2H2O(l) and CaCl2(aq), you need to follow these steps:
Step 1: Write the balanced equation.
The given reaction is already balanced.
2HCl(aq) + Ca(OH)2(aq) → 2H2O(l) + CaCl2(aq)
Step 2: Separate the soluble compounds into ions.
HCl(aq) dissociates into H+(aq) + Cl-(aq)
Ca(OH)2(aq) dissociates into Ca2+(aq) + 2OH-(aq)
The balanced equation, including the dissociated ions, is:
2H+(aq) + 2Cl-(aq) + Ca2+(aq) + 2OH-(aq) → 2H2O(l) + Ca2+(aq) + 2Cl-(aq)
Step 3: Remove the spectator ions to get the net ionic equation.
Spectator ions are those that appear on both sides of the equation and do not participate in the reaction. In this case, the Ca2+ and Cl- ions are spectator ions.
The net ionic equation is:
2H+(aq) + 2OH-(aq) → 2H2O(l)
This is the net ionic equation for the given reaction, which represents the actual chemical change that occurs.
To write a complete ionic equation and net ionic equation, you need to understand the concept of ionic compounds and dissociation.
First, you need to know the formulas of the reactants and products. In this case, the reactants are 2HCl(aq) and Ca(OH)2(aq), and the products are 2H2O(l) and CaCl2(aq).
Step 1: Write the balanced chemical equation.
2HCl(aq) + Ca(OH)2(aq) → 2H2O(l) + CaCl2(aq)
Step 2: Identify the ions present in the aqueous solutions.
HCl(aq) dissociates into H+ and Cl- ions.
Ca(OH)2(aq) dissociates into Ca2+ and OH- ions.
Step 3: Write the complete ionic equation by separating the soluble reactants and products into their respective ions.
2H+(aq) + 2Cl-(aq) + Ca2+(aq) + 2OH-(aq) → 2H2O(l) + Ca2+(aq) + 2Cl-(aq)
Step 4: Remove the spectator ions from the complete ionic equation to write the net ionic equation.
The spectator ions are those that appear on both sides of the equation and do not participate in the chemical reaction. In this case, Ca2+ and Cl- are spectator ions.
Net ionic equation: 2H+(aq) + 2OH-(aq) → 2H2O(l)
So, the complete ionic equation is 2H+(aq) + 2Cl-(aq) + Ca2+(aq) + 2OH-(aq) → 2H2O(l) + Ca2+(aq) + 2Cl-(aq), and the net ionic equation is 2H+(aq) + 2OH-(aq) → 2H2O(l).