-compounds are pure substances that can be broken down chemically. 2. Which element is found in all organic compounds? a. Mercury (Hg) b. Oxygen (0) c. Potassium (K) Carbon (C)

## Step 1<br />The problem is asking us to identify the element that is found in all organic compounds. Organic compounds are a type of compound that contains carbon atoms. <br /><br />## Step 2<br />The term "organic" in chemistry refers to compounds that contain carbon. This is because carbon atoms have the unique ability to form stable, covalent bonds with other carbon atoms, as well as with a variety of other elements. This allows for the creation of a vast array of complex molecules, which are the basis of all known life.<br /><br />## Step 3<br />Given the options, the element that is found in all organic compounds is carbon (C). This is because carbon is the defining element of organic compounds.