Aluminium Sulfide
According to rules the positive specie is named first and the negative specie is named last.
By use IUPAC nomenclature rule compound N2O3 is named as
Dinitrogen trioxide ( answer d)
Nitrogen (N2) is named before oxygen(O3) since they are arranged alphabetically. In addition the prefix Di is used infront of nitrogen since they are two nitrogen atoms while prefix tri is used infront of oxide since they are 3 oxygen atoms
Acetic Acid has two C atoms, four H atoms, and two O atoms, so the molecular formula is C2H4O2.
Atoms are composed of electrons in a cloud around a positive nucleus.
