Work through the list without notes. If you cannot do a statement, follow its link, then come back. Guide = study guide; Practice = practice questions.
Understanding
- I can explain why a balanced equation must conserve both atoms and charge. (Guide: “What a balanced equation tells you”)
- I can explain the difference between molecular, complete ionic and net ionic equations, and say when each is most useful. (Guide: “Which form should you use?”)
- I can explain what a spectator ion is, and why an ion that changes state is not one. (Guide: Worked example 3; Practice Q2)
- I can state that all sodium, potassium, ammonium and nitrate salts are soluble, and use it. (Practice Q1)
Skills
- I can balance an equation from a word description, using coefficients only and including state symbols. (Guide: Worked example 1; Practice Q5)
- I can write equations for physical changes, including an ionic solid dissolving into its ions. (Guide: “Equations for physical changes”; Practice Q5)
- I can decide which species to split into ions and which to keep whole. (Practice Q4)
- I can write the complete ionic and net ionic equations for a precipitation reaction. (Guide: Worked example 2; Practice Q6)
- I can write a net ionic equation for a solid or a carbonate reacting with a strong acid. (Guide: Worked example 3; Practice Q7)
Reasoning
- I can check an equation for charge balance and reject one that balances atoms only. (Guide: “Atoms balanced is not enough”; Practice Q3)
- I can find and correct errors in someone else’s net ionic equation. (Practice Q7)
- I can explain why two different pairs of reagents can share the same net ionic equation. (Guide: “Which form should you use?”)
All ticked? Move on to Topic 4.3, Representations of Reactions, or return to the course roadmap.