This document discusses naming and writing formulas for polyatomic and binary covalent compounds. It provides the following rules: 1) For polyatomic ionic compounds, identify and name the cation and anion, then combine the names with the cation first followed by the anion. 2) For binary covalent compounds composed of two non-metals, the first element is named first using its full name, and the second element name uses the suffix "-ide". 3) Prefixes are used to indicate the number of atoms present, with "mono-" only used for the second element. Examples of common prefixes are given. 4) To write formulas from names, identify the cation and anion,