Which statement gives a reason why the yield of a product may be less than the maximum theoretical yield?
The reaction is reversible, so it does not go to completion
The reaction is exothermic, so energy is transferred to the surroundings
The reaction is catalysed, so the rate of the reaction is increased
The reaction is balanced, so no atoms are lost or made
39 exam-style questions on AQA GCSE Chemistry 3.3 Yield and atom economy of chemical reactions, covering 3.3.1a Percentage yield, 3.3.1b Theoretical mass of a product, 3.3.2a Atom economy, and 3.3.2b Choosing a reaction pathway. Each one has a worked solution and a mark scheme showing where the marks go.