[darko]

wich aqueous solution has lower pH, why?
thx

[BluRay]

Which is smaller between the ions Be²⁺ and Mg²⁺?
What happens when a small cation (of given charge) come in contact with water molecules? If one of the two cations attracted the oxygen atom of a water molecule, which of the two does it more? If a cation formed an hydroxide with water, which of the two cations do you expect would do it or would do it more? If this reaction happens, which are the other products?