Lesson Plan

• Describe the five main solubility rules for common salts.
• Identify the typical exceptions to the chloride, sulfate, carbonate and hydroxide rules.
• Apply the rules to predict whether a given salt will dissolve or precipitate in aqueous solution.
• Explain why experimental verification is required when using solubility guidelines.

• Projector and screen
• Whiteboard and markers
• Printed solubility‑rules handout
• Sample salts (NaCl, AgNO₃, Ca(OH)₂, etc.)
• Beakers, distilled water, safety goggles
• Worksheet for prediction activity

Begin with a quick demonstration where two clear solutions are mixed and a solid precipitate forms, asking students what happened. Review that they already know about ions, acids, bases and ionic compounds. State that by the end of the lesson they will be able to use solubility rules to predict which salts stay dissolved and which form precipitates.

1. Do‑now (5') – short quiz on common cations and anions.
2. Mini‑lecture (10') – present the five solubility rules with examples using the projected table.
3. Guided practice (12') – in pairs, predict solubility for three reactions (soluble, insoluble, partially soluble) and fill a prediction chart.
4. Whole‑class discussion (8') – share predictions, clarify exceptions and underlying reasons.
5. Interactive activity (10') – students use handouts to decide solubility for a set of salts, recording answers on the worksheet.
6. Check for understanding (5') – exit ticket: write one solubility rule and one corresponding exception.

Recap the five core solubility rules and the key exceptions discussed. Collect the exit tickets to gauge understanding and assign the worksheet as homework for additional practice with new salt combinations.