So, let's say you have either a bottle of rubbing alcohol (isopropyl) or a bottle of drinking alcohol (ethanol) and you leave it in the open air for a day or two (or however long it takes for it to evaporate). What happens when the alcohol evaporates into the air? Supposedly, the alcohol from the liquid goes away and you're left with water right? That's why you have to put lid tightly on alcohol. My question is where does the alcohol go? Does it chemically break down or something and just no longer exist? Or is it still existing in some gaseous/vaporous state in the air? Like is the alcohol still lingering in the air around you (like in the form of fumes or something)? Oh and lastly, why does the alcohol part evaporate out and the other liquid part not go away so fast? Why doesn't the water just evaporate too? Thanks for your help!