Pearson Edexcel IAL Chemistry AS 4.3 Reducing practical risks
Pearson Edexcel IAL Chemistry AS 4.3 Reducing practical risks
Practise choosing practical precautions that reduce chemical risk, using the reagent, hazard label and procedure step given.
How this is tested
- explain why a step needs ventilation when toxic vapours or gases may be produced
- use tables of state and hazard symbols to justify safer handling of one reagent over another