7 Steps to better math performance. Here are some quick steps to help you get better at doing mathematics. Regardless of age, the tips here will help you learn and understand math concepts from primary school right on through to university math. Steps to better math performance. Here are some quick steps to help you get better at doing mathematics. Regardless of age, the tips here will help you learn and understand math concepts from primary school right on through to university math.
All compounds are molecules but not all molecules are compounds. Molecular hydrogen (H 2), molecular oxygen (O 2) and molecular nitrogen (N 2) are not compounds because each is composed of a single element.
A compound consists of atoms or ions of two or more different elements in definite proportions joined by chemical bonds into a molecule. So, any molecule that consists two or more different elements is a compound. A molecule contains two or more atoms joined chemically.