water is ionic compounds, and we have heard that ionic compounds dissolve in ionic substance. but the reason behind hydration of ionic substance in water is that the hydration energy of water is greater than the bond strength of the compounds, then the compound doesn't get dissolved in water. read more
There are notable exceptions: ionic compounds containing highly polarising ions (ones that are small and have a high charge) will usually not dissolve in water, but rather react with it, or just not dissolve at all. read more
When ionic compounds dissolve in water they go through a process called dissociation, splitting into the ions that make them up. However, when you place covalent compounds in water, they typically do not dissolve but form a layer on top of the water. read more
water is ionic compounds, and we have heard that ionic compounds dissolve in ionic substance. but the reason behind hydration of ionic substance in water is that the hydration energy of water is greater than the bond strength of the compounds, then the compound doesn’t get dissolved in water. calcium sulfate, silver chloride etc. like substance have high bond strengths, which prevents them from dissolving into water. read more