Is ionic precipitation exothermic or endothermic?

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Offline kaypep

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Some short questions...

Is ionic precipitation an exothermic or endothermic reaction? I know it's specifically either, exothermic i guess cos bonds are formed not broken.


What is obtained from the complete decomposition of Silver carbonate? Please show the equation! thanks.

Why is sodium oxide formed instead of hydroxide when sodium reacts with steam? Is it because of the energy that steam has which causes the reaction to be more vigorous, thus hydrogen atoms do not remain with sodium oxide?

How do catalysts work? (More detailed, I know they lower the activation energy, but how?)

How do you test for the presence of N2 gas?

Thanks :]


« Last Edit: 18/10/2008 22:43:35 by chris »

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blakestyger

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Re: Is ionic precipitation exothermic or endothermic?
« Reply #1 on: 18/10/2008 21:20:42 »
When do you have to hand this in by?  [;)]

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Offline kaypep

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Is ionic precipitation exothermic or endothermic?
« Reply #2 on: 19/10/2008 11:12:35 »
Erm GCE exam tomorrow