(VOVworld) – The 46^th International Chemistry Olympiad will be held in Vietnam from July 20 to 29. 291 contestants from 75 countries and close to 200 observers will take part in the Olympiad.

Chief organizer Bui Duy Cam said preparations for the event have been completed: “The official sets of questions have been completed and will be submitted to the International Jury Council. There must be 25 sets of theoretical questions and 5 sets of practical questions but we have prepared some extras. After a certain period, we will send the answers to other countries for reference.”