Online College Courses for Credit

4 Tutorials that teach Chemical Reactions
Take your pick:
Chemical Reactions

Chemical Reactions

Author: Nathan Lampson

This lesson introduces the process of writing the equation for chemical reactions.

See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

29 Sophia partners guarantee credit transfer.

314 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 27 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.



When molecules react in order to form different molecules, a chemical reaction takes place.  Chemical reactions can be represented by a chemical equation.  The chemicals at the start of the reaction are known as the reactants and the chemicals produced by a reaction are known as the products.  In a chemical equation the reactants are found at the left side of the the equation.  An arrow is used to represent the occurrence of the chemical reaction.  The chemicals found to the right of the reaction arrow are known as the products.


In this image, hydrogen and oxygen react in a chemical reaction forming water.  Hydrogen and oxygen are the reactants.  The product, water, is being formed by the chemical reaction.