If Something Fizzes Does It Mean That It Is Giving Off a Gas?

Carbonated beverages fizz with gaseous carbon dioxide.
••• ITStock Free/Polka Dot/Getty Images

Fizzing usually refers to gaseous carbon dioxide, but it can refer generally to the presence of any gas. The molecules of that gas may or may not have been present in a substance before the fizzing. In the case of a physical change, the constituent compounds are already present, but they get rearranged. In the case of a chemical change, the atoms are reconfigured to create new chemical compounds.

Physical Changes

The fizzing of soda is a physical change that involves the release of gaseous carbon dioxide. During fizzing of a soda, you can see bubbles of carbon dioxide in the soda rise to the top. A bottle of soda doesn't fizz when it is closed because the pressure is higher, and keeps the carbon dioxide dissolved in the liquid.

Chemical Changes

Sometimes fizzing signifies both the creation and release of carbon dioxide. For example, if you combine baking soda and vinegar, you will see fizzing. This happens because carbon dioxide is created in the chemical reaction between these two substances. The atoms in the baking soda and vinegar break their bonds and recombine to form gaseous carbon dioxide and other substances.

Related Articles

Chemical Vs. Physical Reactions
Characteristics of Chemical Reactions
Five Characteristics of a Chemical Change
5 Ways to Know if a Chemical Change Has Occurred
Is Grease Dissolving in Soapy Water a Physical or Chemical...
Is Carbonation Affected by the Temperature?
Characteristics of Aquatic Plants
Five Ways to See Chemical Reactions
How to Make Bromine Water in the Chemistry Lab
Why Does Soda Explode When You Add Mentos?
What Happens After Water Vapor Condenses?
Science Project: The Effects of Temperature on Liquids
Simple Chemical Change Experiments for 4th Graders
What is Chemical Equilibrium?
Three Types of Aqueous Reactions
How to Make Easy Dry Ice
What is a Nonvolatile Solute?
How to Convert ATM Pressure to Celsius
Describe the Formation of Both Positive & Negative...
How to Calculate the Temperature Drop Due to a Pressure...

Dont Go!

We Have More Great Sciencing Articles!