Net ionic equation for KNO2(aq)+HCl(aq)=KCl(aq)+HNO2(aq)
NO2^-(aq) + H^+(aq) => HNO2(aq)
To write the net ionic equation for a reaction, we need to first write the balanced molecular equation and then break it down into its ionic components.
Here's how we can proceed:
Step 1: Write the balanced molecular equation.
KNO2(aq) + HCl(aq) → KCl(aq) + HNO2(aq)
Step 2: Break down the equation into its ionic components (ions that are soluble or dissociate in the solution).
K+ + NO2- + H+ + Cl- → K+ + Cl- + H+ + NO2-
Step 3: Cancel out spectator ions.
In this case, both K+ and Cl- ions appear on both sides of the equation and do not participate in the reaction. Therefore, they are spectator ions and can be omitted from the net ionic equation.
Net ionic equation:
NO2- + H+ → HNO2
So, the net ionic equation for the reaction is NO2- + H+ → HNO2.