Solutions of sodium fluoride and dilute hydrochloric acid are mixed

The reaction between sodium fluoride and dilute hydrochloric acid yields Hydrogen fluoride and sodium chloride. The equation for the reaction is;

NaF + HCl = HF + NaCl

Na ⁺ + F⁻ + H⁺ + Cl⁻ = HF + Na⁺ + Cl⁻

The net ionic equation:

F⁻ + H⁺ = HF