You're describing the components of a chemical compound, but you need to specify how they are connected to each other to form a specific molecule. Here's why:

* Potassium (K) is a metal, forming ionic bonds.

* Oxygen (O) is a nonmetal, forming covalent bonds.

* CH2 and CH3 are fragments of organic molecules (hydrocarbons), containing carbon (C) and hydrogen (H), forming covalent bonds.

To understand what you're trying to make, you need to provide more information about the structure and bonding:

* What is the overall charge of the molecule? Is it neutral or ionic?

* How are the elements connected? Is there a specific ratio of each element?

* Are there any other atoms involved?

Examples:

* Potassium hydroxide (KOH): This is an ionic compound containing potassium, oxygen, and hydrogen.

* Methanol (CH3OH): This is an organic molecule containing carbon, hydrogen, and oxygen.

* Ethane (CH3CH3): This is a hydrocarbon containing only carbon and hydrogen.

Let me know if you can provide more context about the compound you're trying to identify!