Chemistry, asked by vsupriya070402, 1 year ago

plz answer this question
if answer is wrong Pakka I will report don't give silly answers
I need at least 30-50 words each questions...

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Answered by TheLifeRacer
1
.heya!!

it's too easy 1☺
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1) Hydrates--the water molecules which form part of the structure of crystal (of a salt) are called water of crystalization.the salt which contain water of crystalization are called hydrated salts .every hydrated salt have fixed no.of molecules molecules of water of water crystallization in its formula unit for example :copper sulphate ,Cyso4.5H2O.(pentahydrate).☺ sodium carbonate Na2CO3.10H2O.


2) When electric current is passed through acidified water ,it decomposes to give hydrogen gas and oxygen gas ,as follow..


2H2O(I)------electricity ------------------)2H2+(g)+O2 (g)
,,,,,,,,,,,,,,,,,,,,,,, decomposition

3)20volt H2O2 means that 1litre of H2O2 solution would produce 20 litre of oxygen..

water gas --water gas is also known as Hydrogen peroxide is a chemical compound with formula H202 it is a pure form of water ,which is viscous blue .

3)1)uses of H2O2 is for washing cloth by the use of washing soda


5)laboratory method of dihydrogen...
______________________________________a)take a wide moulded glass bottle B without bottom. fix it on stand in the inverted position.

b)A rubber cork having two holes is fitted in the neck of Nortel two carbon rods. (called carbon electrodes)are fixed two holes of the cork titghtly

c)two similar tubes fitted with water over two carbon electrodes by keeping thumb over their mouth so that initially they remain completely filled with water.

d)connect the outer end of carbon rods to terminal +and- of 6 volts


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