Revision notes topic questions past papers

A  The sulfuric acid is less concentrated in T

B  The sulfuric acid is more concentrated in T

C  A higher temperature is used in S

D  Larger sized particles are used in T

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7 CHEMICAL REACTIONS

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7.2  REVERSIBLE REACTIONS

Reversible Reactions

Reversible reactions

•  Some reactions go to completion, where the reactants are used up to form the product 

molecules and the reaction stops when all of the reactants are used up

•  In reversible reactions, the product molecules can themselves react with each other or 

decompose and form the reactant molecules again

•  It is said that the reaction can occur in both directions: the forward reaction (which forms 

the products) and the reverse direction (which forms the reactants)