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.
A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements.
A molecule is a combination of one of more atoms of a similar type. O2 (oxygen) is a molecule but not a compound. If two atoms of different elements combine it is both a molecule and a compound. H2O (water) is a compound as it contains both hydrogen and oxygen. All compounds (a mixture of elements) are molecules but not all molecules (of the same elements) are compounds.