Acorns don't have a single chemical formula. They are complex biological structures made up of many different organic compounds. Here's a breakdown of the main components:

* Carbohydrates: Acorns are primarily composed of carbohydrates like starch, cellulose, and sugars. These provide energy for the growing oak seedling.

* Fats: Acorns contain fats and oils, which are important for energy storage.

* Proteins: Acorns contain proteins, essential for building and repairing tissues.

* Water: Acorns have a significant water content.

* Minerals: Acorns contain various minerals like potassium, magnesium, calcium, and phosphorus.

* Tannins: Acorns also contain tannins, which are bitter compounds that can deter animals from eating them.

It's impossible to represent the complexity of an acorn with a single chemical formula. It's like trying to describe a human body with one formula!