4.2 Net Ionic Equations

• A net ionic equation represents the chemical species that directly participate in a reaction in an aqueous
• Net ionic equations show only the ions that participate in the reaction
• Match the type of electrolyte with its properties:

  Strong ↔️ Completely dissociates

  Weak ↔️ Partially dissociates

  Non ↔️ Does not dissociate
• In the reaction AgNO₃(aq) + NaCl(aq), which ions are spectator ions?

  Na⁺ and NO₃⁻
• Which ion is a spectator ion in the reaction AgNO₃(aq) + NaCl(aq)?

  NO₃⁻
• Match the strong electrolyte with its type:

  HCl ↔️ Strong acid

  NaOH ↔️ Strong base

  NaCl ↔️ Soluble ionic compound
• Order the electrolytes based on their degree of dissociation:

  1️⃣ Strong

  2️⃣ Weak

  3️⃣ Non
• Steps to write ionic equations:

  1️⃣ Identify all ions present

  2️⃣ Write the total ionic equation

  3️⃣ Remove spectator ions

  4️⃣ Write the net ionic equation
• Steps to write a net ionic equation:

  1️⃣ Write the balanced molecular equation

  2️⃣ Dissociate strong electrolytes

  3️⃣ Identify spectator ions

  4️⃣ Write the net ionic equation
• What concentration of ions in solution do strong electrolytes produce?

  High concentration
• What is an example of a strong electrolyte?

  HCl
• Name a strong base that is also a strong electrolyte.

  NaOH
• What is an example of a weak electrolyte?

  Ammonia
• Steps to identify spectator ions

  1️⃣ Write the total ionic equation

  2️⃣ Compare reactants and products

  3️⃣ Identify unchanged ions
• What is shown in a complete ionic equation?

  Dissociated ions
• Net ionic equations exclude spectator ions
• Balancing net ionic equations may require adding H⁺ or OH⁻.

  True
• Strong electrolytes are excellent conductors of electricity
• Spectator ions are removed to form the net ionic equation.


  True
• Match the electrolyte type with its properties and examples:

  Strong ↔️ High conductivity, HCl

  Weak ↔️ Low conductivity, NH₃

  Non ↔️ No conductivity, C₁₂H₂₂O₁₁
• Strong electrolytes are poor conductors of electricity.

  False
• Sugar is an example of a non-electrolyte.


  True
• In the reaction AgNO₃(aq) + NaCl(aq) → AgCl(s) + NaNO₃(aq), which ions are spectator ions?

  Na⁺ and NO₃⁻
• Net ionic equations highlight the key reactants and products involved in a chemical reaction.


  True
• Net ionic equations include spectator ions.

  False
• Ethanol is an example of a non-electrolyte
• What happens to spectator ions during a chemical reaction?

  Remain unchanged
• Complete ionic equations show all ions, including spectators
• Net ionic equations exclude spectator ions.

  True
• What is the net ionic equation for the reaction AgNO₃(aq) + NaCl(aq)?

  Ag⁺(aq) + Cl⁻(aq) → AgCl(s)
• What happens to strong electrolytes when dissolved in water?

  Completely dissociate into ions
• Spectator ions appear on both sides of the total ionic equation and remain unchanged
• Strong electrolytes are poor conductors of electricity.

  False
• Strong electrolytes are substances that completely dissociate into ions
• Non-electrolytes do not dissociate in water, so their conductivity is none
• Spectator ions appear on both sides of the total ionic equation
• A net ionic equation excludes spectator ions
• Net ionic equations show only the ions that participate
• Which of the following electrolytes has a low degree of dissociation?

  Weak
• Strong acids are examples of strong electrolytes.


  True