fifty- eighth school international mendeleev olympiad, which took place in the chinese city of shane janeet in moscow. none of the russian representatives... left without a medal; our team has five gold and five silver awards. the number of participants this year was record, more than 200 student mentors from 29 countries. the competition involved two theoretical rounds and one experimental round. they contained tasks of varying levels of difficulty. the third one practically lasted 5 hours. it was necessary to conduct a chemical analysis of the synthesis of substances. probably the most difficult thing was to somehow fit in time. there were a lot of tasks for a short time, we had to do everything, the tasks themselves were still difficult. the international mendeleev school olympiad is one of the two largest in the world, along with the international chemistry olympiad. it was to her, after after a short break , the winners of the tournament in china will begin to prepare. at least ten palestinians were killed by israeli military forces in the south and center of the gaza strip. accordin