Glass has been known to people for more than one century. Glass has become widespread and used all over the world due to its physical properties. Probably in the modern world it is impossible to imagine a single built house without this universal material. The chemical formula of glass is as follows: Na₂СaSi₆O₁₄.
Glass can be natural, it is formed in the craters of volcanoes and other places where the temperature allows the reaction to take place. BUT most often people use glass, which is obtained on an industrial scale. The chemical formula for the reaction of obtaining glass is as follows:
6 SiO₂ + Na₂O + CaO = Na₂O * CaO * 6 SiO₂.
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