Evaporating water produces gaseous water. What has occurred during this process?

evaporation

Explanation:

Sometimes adding heat energy to solid ice causes a change of state from a solid to a gas. This change, directly from a solid to a gas without becoming a liquid, is called sublimation. ... When water absorbs enough heat, it becomes a gas (water vapor). This process is called evaporation.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

the ratio of the conjugate base to the acid required to attain the desired ph.