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I am giving you some experments,try them at your school lab with teacher's consultancy. 
(1)ammonium dichromate looks pretty cool when you burn it.
(2)copper and nitric acid-amazing colour!!
(3)nitrous oxide and carbon di sulphide(the famous barking dog experiment)
hope it helped you
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thank u!!!!!!!! it would b vry helpfull for me
welcome!!carry them out with caution!!will be fun..
There many experiments electrolysis of water,reaction of ZnandHCl,heating of magnesium ribbonetc......

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