Is flat soda pop a solution?

Flat soda pop is not considered a solution in the scientific sense. A solution is a homogeneous mixture where one substance (the solute) is completely dissolved in another (the solvent). In flat soda, the carbonation (carbon dioxide gas) has escaped, resulting in a mixture that lacks the uniformity and properties typically associated with a true solution. Instead, flat soda is more of a mixture of water, sugars, flavors, and other ingredients without the dissolved gas.