Determine the chemical formula of potassium oxide.

Sure, let's determine the chemical formula of potassium oxide step by step:

1. Identify the elements involved:

   • Potassium (K)
   • Oxygen (O)

2. Determine the valency (oxidation state) of each element:

   • Potassium (K) is an alkali metal and typically has a valency of +1.
   • Oxygen (O) typically has a valency of -2.

3. Balance the charges to form a neutral compound:

   • To balance the charges, we need two potassium ions (each with a +1 charge) to balance one oxide ion (with a -2 charge).

4. Write the chemical formula:

   • Since we need two potassium ions to balance one oxide ion, the chemical formula is K₂O.

So, the chemical formula of potassium oxide is K₂O.