# Gas solution - State of matter

When a gas is dissolved in water does the state of gas changes ? We write it as aqueous but what is the state that exists ? does it has the properties of gases when it is dilluted ?

A gas, though, is defined as free to fill its container, unlike a liquid with a definite volume. Since a dissolved gas (as opposed to one chemically bound to a liquid) is free to disperse, e.g. $$\ce{CO2}$$ bubbling out of seltzer, one might still consider it gaseous, rather than liquid, just loosely bound to the liquid.
That said, in a closed container in equilibrium, or over a short time, dissolved gases do behave as liquids. One can pour $$\ce{NH4OH}$$ ($$\ce{NH3}$$ aq.) into $$\ce{H2SO4}$$ ( $$\ce{SO3}$$ aq.), and the majority of the dissolved gases stay in solution -- though some $$\ce{NH3}$$ gets out, leaving one tearing and coughing, if not done under a hood.