For example the formula for water is H2O: this means that each molecule it is constituted by 2 atoms of hydrogen (H) and 1 atom of oxygen (O).
Umpaminyane, H2O inggih punika rumus kimia antuk yeh, sane kaorahang wantah sawilang molekul silih tunggil kalih atom hidrogen (H) miwah besik atom oksigen (O).