Reactants Definition
Reactants combine or rearrange in a chemical reaction to form products. For example, hydrogen and oxygen react to create water.
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Chemical Reactions
Fun Facts
- Reactants usually have different properties than products, even though the same number of atoms are present before and after a chemical reaction.
- When a bath bomb goes through a chemical change, baking soda, citric acid, and water are the reactants.
- The carbon dioxide gas that is formed when a bath bomb undergoes a chemical change is not one of the reactants.
Why Do We Need To Know About Reactants
Learning about reactants helps us understand how chemical reactions create new materials and medicines. These reactions are important for our health and everyday life.
Reactants are used outside of science labs. Chemical engineers and scientists use them to figure out tough problems, like making better rocket fuel for space trips or flexible solar panels for wearable gadgets. This tells us that knowing about reactants can lead to many job opportunities and has practical uses too.
Frequently Asked Questions
Check out the Full Lesson on Chemical Reactions
In this lesson, we learn that:
- When substances undergo chemical reactions their properties change.
- The total number of atoms does not change throughout a chemical reaction.
- Scientists use chemical reactions to create new materials and medicines.
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