what tests do we need to know from chemistry edexcel gcse??
e.g CO2 and H2
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use calcium hydroxide (slaked lime) passed co2 from slaked lime then it will changed in to transparent and milky this is test of co2,take a candle then passed H2 from this a pop sound is produse with bluse flame this is test for H2
saramahmud:
do I need to know anymore?
is it right
yeh
passed H2 through unsaturated hydrocarbons then it will change in to satirated hydrocarbon that is atest for H2, take atree passed co2 near it then it will parapear their food and remain healthy it is another test for co2
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