Final answer:
The name of the compound represented by the chemical formula K2O is potassium oxide, where potassium ions and oxide ions bond to form an ionic compound.
Step-by-step explanation:
The equation K2O represents the ionic bond between potassium and oxygen. The name of the compound is potassium oxide. In this compound, potassium (K) exists as the cation K+ and the oxide (O) exists as the anion O2-. The formula is constructed using the crisscross method to ensure that the overall charge of the compound is zero. Since two potassium ions each with a charge of +1 are needed to balance the -2 charge of a single oxide ion, the formula K2O is derived, indicating that the compound consists of two potassium ions bonded to one oxide ion.