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metal alkaline

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HongKongALevelboy:
why are group 1 metal oxides more alkaline than group 2 metal oxides in water ? please help me stop wondering . ( why are group 1 hydroxides more alkaline that those of group 2 ) , is it a matter of the solubility of metal hydroxide ions and should group 2 hydroxides be solid ?

Demotivator:
group 2 oxides have more covalent character than group 1 because higher cation charge draws more electron density from oxygen towards the metal than group1. Therefore group 2 is less ionic and less soluble.
When group 2 hydrolyzes in water it produces hydroxide, but the reaction is a reversible equilibrium.
Group 1 hydrolysis is essentially complete.

budullewraagh:
ay, alkali hydroxides dissociate much more thoroughly than alkaline earth hydroxides

Mitch:
how does one become more alkaline?

HongKongALevelboy:
thx a lot , demotivator , i understand it now , i ll take my Hong Kong Advanced Level Examination on March of 2005 , meanwhile , i would raise many questions , i will be grateful if u guys are willing to take trouble to answer me .

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