chemistry olympiads in... all over the world, which are captured by the teaching.stry tournament and 90 countries were hosted by saudi arabia. 5 hours for theory and the same for practice. a simple example, let's say, here are the recognitions, that is, it often happens at olympiads, you have a bunch of test tubes, they have some water poured in, you need to understand what kind of water and what it represents. the name is cheloch, i am a priranch, the cheloch should become yellow. op, here it is yellow, while, for example, with acid. here was an ordinary site, let's say, not modern, today all children's play equipment is installed here, there is a playground, there is a sports ground, there is a place for kids to walk, that is, people are very happy, they like everything, i live in the forty-fifth house, the place has certainly been improved very remarkably, many thanks to the residential complex of the lininsky district, we have never had anything like this, here is the gym. we have been preparing for this holiday for several months, doing repairs, changing the i