In a distillation experiment, provide reasons for any discrepancies between the initial volume of the liquid mixture (20ml) and the sum of the total final volume (18.4ml). take into account water’s property of solvent.

The densities change, the mass would be the same, but density will not.

Explanation:

As water is a great solvent, when a solute is added, it will change the mass of the mixture, but the volume will change very little. Thus, when they are separated, the densities are expected to change, in this case, an increase, so the mass is the same but the volume is less.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.