Reactions that go both ways, the energy they transfer each way, and what equilibrium in a closed system means.
Reactions that go both ways
In a reversible reaction the products can react to make the reactants again.
The symbol is ⇌.
A + B ⇌ C + D
- Heat white ammonium chloride: it breaks down into ammonia and hydrogen chloride. Near the cool top of the tube they join up again as a white solid.
- Changing the conditions can change which direction wins.
The rest of this lesson and its 7 practice questions are in Plus.
Screen 1 of 3, free to read.
- 7 exam-style questions, marked as you go, each with a worked solution
- Anything you get wrong is saved to your flashcards