For NaOCH3, identify each bond as polar covalent, nonpolar covalent or ionic.
◦ NaO = polar covalent; OC = nonpolar covalent; CH = polar covalent
◦ NaO = polar covalent; OC = polar covalent; CH = nonpolar covalent
◦ NaO = ionic; OC = ionic; CH = nonpolar covalent
◦ NaO = ionic; OC = polar covalent; CH = nonpolar covalent
◦ NaO = polar covalent; OC = nonpolar covalent; CH = nonpolar covalent