Sometimes you may wake up with a swollen, puffy face. This may happen as a result of pressure being placed on the face while sleeping. However, a swollen, puffy face can also arise from a facial injury or indicate an underlying medical condition. Facial... Read more
Matter is also different because objects can be made up of different kinds of atoms. Gold is made of one kind of atom-gold atoms. Salt is made up of two different kinds of atoms-sodium atoms and chloride atoms. Properties of Matter Remember all objects take up space and have mass. You use your sense of taste and smell to tell the difference between spinach and an orange.
It would be misleading to talk about molecular mass of a salt because salts (ionic compounds) are not molecules. The concept of âformula massâ is a formalism that recognizes that salts are not molecules. The formula mass is calculated from the simplest formula of an ionic compound just like the molar mass is calculated from the molecular formula of a covalent compound: by adding up the atomic masses of all the atoms in the formula.