Essentially SiO2 - Silicon dioxide
with added oxides
the chemical formula of glass is H2o+world education time hhahahah
There is none. Glass is a mixture, not a pure substance and so does not have a chemical formula.
Obsidian is volcanic glass, a mixture and as such has no chemical formula.
SiO2
Na2SiO3. sodium silicate, it looks like a glass but is not the glass.
Glass is a silicate; many types of glass exist, with very different composition.
Because a glass of cordial contains far more than one chemical.
Because a glass of cordial contains far more than one chemical.
Glass blowing is a physical procedure, the chemical formula is not changed.
The molecule of water has the chemical formula H2O.
Since the main ingredient in most glass cleaners is ammonia, you can mix equal parts of non sudsy ammonia with water, which makes a good glass cleaner. You can also do the same with vinegar.
Besides for rearranging the glass pieces, one is not actually changing the chemical formula of the glass. Much like grinding NaCl, the crystals get smaller but the chemical remains the same.