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
Is Grease Dissolving in Soapy Water a Physical or Chemical...
Characteristics of Chemical Reactions
5 Ways to Know if a Chemical Change Has Occurred
Science Project: The Effects of Temperature on Liquids
How to Calculate the Temperature Drop Due to a Pressure...
What Happens When the Pressure and Temperature of a...
Why Does Soda Explode When You Add Mentos?
Describe the Formation of Both Positive & Negative...
What is Chemical Equilibrium?
What Happens After Water Vapor Condenses?
What is a Nonvolatile Solute?
Five Characteristics of a Chemical Change
Simple Chemical Change Experiments for 4th Graders
How to Convert Mg/m3 to Ppm
Why Does Sugar Affect the Freezing Point of Water?
Three Types of Aqueous Reactions
Difference Between Atoms & Ions
How to Convert ATM Pressure to Celsius
How to Calculate CFM to MPH