Determine the type of each chemical equation describing a precipitation reaction – [Free] B98
Determine the type of each chemical equation describing a precipitation reaction. Choose…Net ionic equationFull molecular equationFull ionic equation Choose…Net ionic equationFull molecular equationFull ionic equation Choose…Net ionic equationFull molecular equationFull ionic equationDetermine the type of each chemical equation describing a precipitation reaction. Choose…Net ionic equationFull molecular equationFull ionic equation Choose…Net ionic equationFull molecular equationFull ionic equation Choose…Net ionic equationFull molecular equationFull ionic equation
Chemistry Concept: Types of Precipitation Equations
Question:
Determine the type of each chemical equation describing a precipitation reaction. Identify whether the equation is a full molecular equation, a full ionic equation, or a net ionic equation.
A single precipitation reaction is often represented in three distinct forms:
1. Full Molecular Equation:
This form displays all compounds as intact, undissociated chemical formulas. For example, consider the reaction between silver nitrate and sodium chloride:
AgNO₃(aq) + NaCl(aq) → AgCl(s) + NaNO₃(aq)
This is the full molecular equation because it shows each compound as it is written, without breaking them into ions.
2. Full Ionic Equation:
All strong electrolytes that are soluble in water are shown as their dissociated ions. Precipitates and weak electrolytes remain intact. For the same example:
Ag⁺(aq) + NO₃⁻(aq) + Na⁺(aq) + Cl⁻(aq) → AgCl(s) + Na⁺(aq) + NO₃⁻(aq)
This is the full ionic equation because all aqueous ions are written in ionic form.
3. Net Ionic Equation:
Spectator ions (those that appear on both sides of the equation unchanged) are canceled out, leaving only the species that directly participate in the chemical reaction:
Ag⁺(aq) + Cl⁻(aq) → AgCl(s)
This is the net ionic equation since it shows only the formation of the precipitate and omits the spectator ions.
Summary:
- ✅ Full molecular equation: Shows all substances as complete compounds.
- ✅ Full ionic equation: Shows all soluble ions in their dissociated form.
- ✅ Net ionic equation: Shows only ions that form the precipitate (removes spectator ions).
This approach helps classify chemical equations in a precipitation reaction and identify which components undergo actual chemical change.