List of signs that indicate a chemical reaction
1.) Bubbles of gas may appear
2.) A precipate forms
3.) A color change occurs
4.) The temperature changes
5.) Light is emitted
6.) A change in volume occurs
7.) A change in electrical conductivity occurs
8.) A change in melting or boiling points occurs
9.) A change in smell or taste occurs
10.) A change in any distinctive chemical or physical properties occur
Definitions of the different parts to a reaction
Reactant: A substance or molecule that participates in a chemical reaction.
Product: A substance that forms in a chemical reaction.