In one or two sentences explain why the combination weight of several liquids mix and less than but never more than the sum of all the weights all the ingredients

1 answer

The combination weight of several liquids may be less than the sum of their individual weights due to factors like thermal contraction or the formation of a solution where some volume is occupied by intermolecular interactions. However, it cannot exceed the total weight of the ingredients because mass is conserved in a closed system.