What you'll learn
Acids, rates, energy and electrolysis.
Key ideas
- Acids and bases, the pH scale, neutralisation.
- Rates (collision theory), exothermic/endothermic reactions, electrolysis.
Exam tips
- Explain rate using collision frequency and energy.
- State where ions move in electrolysis.
Common mistakes
- Confusing exothermic and endothermic.
- Confusing anode and cathode.