What must reacting particles do before they can react?
They must be identical.
They must dissolve.
They must collide.
They must separate.
Flashcards for AQA GCSE Chemistry 6.1.3 Collision theory and activation energy, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 24 cards, matched to the AQA GCSE Chemistry (8462) specification. Recall questions account for roughly 40% of marks at GCSE Chemistry, so these target the marks you can secure before the paper starts.