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 is a substance whose atoms are made up of more than one element. Compounds have been mixed together. Some examples of compounds are water, sugar and salt. A compound is two or more elements that have undergone a chemical change.