It means there's that number of atoms in a particle of the substance represented by the entire formula. For example, in CO2, there are 2 oxygen atoms. The absence of a subscript after the C means there is 1 carbon atom.
we can represent a compound with chemical formula
We know that Al2O3 is the chemical formula for aluminum oxide.
It's a mix of mostly NaCl and a little CaCO3
Chemical formula (rather than 'symbol') of the pure compound: water is H2O. Mineral water is not a compound but a mixture of mainly water and some minerals dissolved in it. (The same is valid for tapwater)
using the symbols on the periodic table. if it is a compound, then things get a little complicated, but it is still the same basic principle. water is H2O. carbon dioxcide is CO2 you see?
they represent the number of protons and electrons.
we can represent a compound with chemical formula
We know that Al2O3 is the chemical formula for aluminum oxide.
It's a mix of mostly NaCl and a little CaCO3
Chemical formula (rather than 'symbol') of the pure compound: water is H2O. Mineral water is not a compound but a mixture of mainly water and some minerals dissolved in it. (The same is valid for tapwater)
Almost certainly you are looking for Titanium(IV) Selenide, TiSe2, though the Titanium(III) compound, Ti2Se3 may exist as well. You should be more specific :)
OH is the chemical formula for an alcohol OH stands for hydroxide Hydrogen and carbon dioxide
The chemical formula of Sucralose, which is found in Splenda and Equal, is C12H19Cl3O8. It has little to no effect on respiration as it is closely related to sugar and does not contain Aspartame.
using the symbols on the periodic table. if it is a compound, then things get a little complicated, but it is still the same basic principle. water is H2O. carbon dioxcide is CO2 you see?
They represent Scotland to some people. They are loyal and brave little dogs.
a penis
A big fish in a little pond