any of the major appearances or aspects in which a thing of varying modes or conditions manifests itself to the eye or mind. 2. a stage in a process of change or development: Each phase of life brings its own joys. 3. a side, aspect, or point of view: This is only one phase of the question.
The pH of a neutral solution is 7. At this pH, the solution has equal concentrations of both the H+ and OH- ions, which is 10^-7 mole/litre. The presence of both the hydrogen and hydroxyl ions in equimolar concentrations makes the solution neutral.
That cup of water isn't just refreshing, it's also something we call a neutral solution. The word 'neutral' in this instance means exactly what you think; these solutions love balance and don't like to choose sides. By definition, a neutral solution is a solution that has a pH of 7. It is neither acidic (pH < 7) nor basic (pH > 7), but right in the middle, or neutral.