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Chemistry. Water The substance that will be discussed in this issue is known to everyone. Without it, as well as without oxygen, human life is impossible, at least because 70% of us are made up of this compound. It is also the only one on Earth that is simultaneously present in three aggregate states: solid, liquid and gaseous. The molecule of this substance includes two hydrogen atoms and one oxygen, and we can say that we are dealing with hydrogen oxide. Its formula is H2O. Let's analyze its chemical properties and understand what is unique about this compound. #science #chemistry #water #experiments