This key facts covers Key Facts: Solubility Rules within Making Salts for GCSE Chemistry. Revise Making Salts in Chemical Changes for GCSE Chemistry with 20 exam-style questions and 20 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 6 of 13 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 6 of 13
Practice
20 questions
Recall
20 flashcards
📌 Key Facts: Solubility Rules
You need to know which salts are soluble and which are insoluble:
SOLUBLE (dissolve in water):
- All sodium, potassium, and ammonium salts
- All nitrates
- Most chlorides (except silver and lead)
- Most sulfates (except barium, calcium, lead)
INSOLUBLE (don't dissolve):
- Silver chloride (AgCl) — white precipitate
- Barium sulfate (BaSO₄) — white precipitate
- Lead iodide (PbI₂) — yellow precipitate
- Most hydroxides (except Na, K, Ca)