Acids, Bases and Salts
Review the essentials and check your understanding after your teacher’s explanation.
Acids, alkalis and neutralisation酸、碱与中和
Use ions and pH to explain what happens when an acid meets an alkali.
Complete this core task when your teacher assigns the topic. Use the short recall cards before class.按老师指定的知识点完成网页预习，周内用提示卡回忆；不是整章预习。
Choose a topic
Acids, alkalis and strength
Use indicators and distinguish acid strength from concentration.
Acid reactions and neutralisation
Predict products and write the acid–alkali ionic equation.
Oxides and solubility
Classify oxides and apply salt solubility rules.
Preparing soluble salt crystals
Explain the purpose of excess solid, filtration and crystallisation.
Titration and concentration
Use a burette and pipette, then calculate concentration from a titre.
Precipitation and method selection
Prepare an insoluble salt and choose a method from solubility.
Printable worksheets
Guided Worksheet
6 lessons with teacher examples, partner practice and hint references.
Download DOCX ↓Printable hint cards
Use a card when you need a starting step, then return to the question. Chapter 11 cards are on pages 3–5 of the collection. Print the relevant pages and cut out the cards you need.
Download hint cards DOCX ↓