CO2, despite being a non-polar molecule, can dissolve in water, a polar solvent, due to its nature as an acidic oxide. When CO2 interacts with water, it reacts to form carbonic acid, which contributes to the formation of salt species. The term "dissolve" should not be confused with solubility; CO2 can enter water as long as there is a partial pressure of the gas above the liquid. Although CO2 has a net dipole moment of zero, water can still interact with it through mechanisms other than dipole-dipole interactions, allowing for its dissolution in water. This discussion clarifies the complexities of gas solubility in polar solvents, challenging the "like dissolves like" principle.