There are three types of GPA that medical schools calculate, and you need to know about each: 1  Overall GPA â The raw GPA calculation of all of your undergraduate coursework combined. 2  BCPM â âScience GPA.â Your GPA for all of your science coursework. This is the big one. 3  AO GPA â âAll Otherâ GPA.
Best Answer: A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements. All compounds are molecules but not all molecules are compounds. Source(s):
A compound is a substance in which atoms of different elements are chemically held to one another. A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs.A mixture can usually be separated back into its original components, a compound can not.  The difference is that a compound is a chemically combined  'mixture' (well defined, with one set of properties) and a mixture  is not chemically combined (in a non-defined, variable combination  of compounds and/or elements, all with its own properties:  kerosine/gasoline/naphta, moist/dry air).