Are all ions neutral?Watch
At the same time, I would like to ask:
Is there a way to remember the properties, reactivity of oxide, carbonate, hydroxide with water and oxygen, melting point, of period 3, group 2 and 7?
If the ions react with water they can be acidic or basic.
NH4+ reacts with water to form NH3 + H3O+ and so is acidic
CH3COO- reacts with water to form CH3COOH + OH- and so is basic.
In general the salt of a weak acid is basic and the salt of a weak base is acidic.
The only way to learn the properties of group 2, group 7 and period 3 is to tabulate them and memorise them
- Study Helper
To be able to calculate pH you need to know what ions are present and in what concentrations.