Answer
To name a formula or compound, first determine if it is ionic or covalent. If it is covalent, it contains 2 or more nonmetals. If it is ionic, it contains a metal and a nonmetal. For ionic compounds, you need to know the valence of each element and add the charges. Never put "mono" in front of the first word of a covalent compound. For both ionic and covalent compounds, add "-ide" at the end of the second word.