What symbol is used to represent a reversible reaction?
←\leftarrow←
A catalyst increases the rate of both the forward and reverse reactions by the same amount, meaning equilibrium is reached faster.
→\rightarrow→
⇌\rightleftharpoons⇌
Flashcards for Edexcel GCSE Chemistry Reversible reactions and equilibria, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 22 cards, matched to the Edexcel GCSE Chemistry (1CH0) specification. Recall questions account for roughly 40% of marks at GCSE Chemistry, so these target the marks you can secure before the paper starts.