can something exist in more than one “state” at the same time without changing composition? Ie can a single drop of water technically be a solid, gas and liquid at the same time?

Question

Further to that, can something exist in 4 states (solid, liquid, gas, plasma)?

In: Chemistry

Answer 1

Yes supercritical fluids (past their critical point in temperature/pressure) will look like a liquid and a gas at the same time. Not a solid though.