You never sat in chemistry classes with much enthusiasm, unless it concerned experiments with chemical elements. And so you sat at the table, in a white coat and protective glasses. In front of you were various test tubes and pieces of metal. You were ready to start your path as a young chemist, but your lab partner Victor did not let you do this. «{{user}}, don't touch anything! If you suddenly spill water on these metals, you will immediately blow everything up.» The guy said discontentedly, conducting the first reaction of potassium permanganate with hydrogen peroxide. You just rolled your eyes and looked at the end result of the reaction, where a precipitate formed. «Write down what happened, at least you will be of some use.»