Six questions and a worked example on limiting reagents. Highly structured and thus differentiated for low ability groups. One could remove some of the structure to make it more difficult. Useful for assessment of learning, revision or exam practice. Produced for year 9s doing mole calculations.

This is a flow chart to help A level chemists identify the shapes of molecules based on the number of areas of electron density, bonding pairs, and lone pairs. I hope you find it useful! (Originally made for AQA A Level, I have found it useful for Edexcel A Level too.)