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Have you ever opened a bottle of soda and noticed the fizz escaping? That fizz is carbon dioxide gas being released as a result of a decomposition reaction.
The soda contains carbonic acid, which breaks down into water and carbon dioxide gas when you open the bottle, creating a familiar fizz.
A decomposition reaction is a reaction in which one substance breaks apart into two or more simpler substances.
Now, think about hydrogen peroxide, the antiseptic in the brown bottle. If exposed to light, it decomposes into water and oxygen gas, that’s why it’s stored in dark containers.
Even water undergoes decomposition. When electricity passes through it, water splits into hydrogen and oxygen gases, forming bubbles at the electrodes. Oxygen appears at the positive electrode and hydrogen at the negative electrode.
The decomposition reaction also happens in the kitchen. When we heat baking soda, it releases carbon dioxide gas, making cakes and bread fluffy.
Decomposition reactions are all around us, from cooking to digestion, breaking down substances in ways we encounter every day.
