napthalene: C10H8 sulphur: S02
Explanation:
C10H8
Sugar and water are made with tiny particles. They are both made from molecules and atoms.
This assumption is not valid because, there are some elements which exist in two or more forms; they have the same atomic number but differ in their mass number, which meas that they possess different number of neutrons. These type of element are called isotopes. Isotope have the same atomic number and similar physical and chemical properties but they have different number of neutrons and therefore possess different masses.
Mercury is a homogenous mixture of two or more pure substances
