Explain what the records mean: O2, 2H2O, 3S8, P2O5.

The above records are the chemical formulas of chemical elements and chemicals.

O2 is oxygen. Oxygen belongs to the group of non-metals. Under normal conditions oxygen is a gas.

H2O this compound is called water. Water or otherwise hydrogen oxide. A water molecule consists of one oxygen atom and two hydrogen atoms. Water is a binary compound. Water is the basis of life on earth.

P2O5 is a pentavalent phosphorus oxide. Belongs to the class of acidic oxides. When interacting with water, phosphoric acids are formed.



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