6.1 EMPIRICAL FORMULA AND MOLECULAR FORMULA
6.2 MOLECULAR MASS AND FORMULA MASS
6.3 CHEMICAL FORMULA AND NAME OF BINARY IONIC COMPOUNDS
6.4 AVOGADRO'sNUMBER AND MOLE
6.5 CHEMICAL CALCULATIONS
6.6 CHEMICAL EQUATION AND BALANCING
6.7 MOLECULAR AND STRUCTURAL FORMULA