Gas tests 0.0 / 5 ? ChemistryTesting and analysing substancesGCSEAQA Created by: MeelieexoCreated on: 27-04-15 16:54 chlorine chlorine bleaches damp litmus paper making it white. It may turn red at first to show its acidic 1 of 27 oxygen oxygen relights a glowing splint 2 of 27 carbon dioxide Turns limewater cloudy 3 of 27 hydrogen makes a squeeky pop with a lightened splint. This noise is made by hydrogen burning with oxygen to mkae h2o 4 of 27 ammonia Turns damp red litmus paper blue 5 of 27 add sodium hydroxide to calcium gives white percipitate 6 of 27 add sodium hydroxide to copper blue percipitate 7 of 27 add sodium hydroxide to iron gives sludgey green percipitate 8 of 27 add sodium hydroxide to iron111 gives a red-brown precipitate 9 of 27 add sodium hydroxide to aluminum gives a white percipitate then redisolves in naoh to give a colourless solution 10 of 27 add sodium hydroxide to ammonium doesnt give percipitate, heating produces ammonia which has a strong smell 11 of 27 sodium flame test orange/yellow 12 of 27 calcium flame test red flame 13 of 27 copper flame blue green flame 14 of 27 potassium flame lilac flame 15 of 27 carbonates and sulfates react with what hcl 16 of 27 carbonates + hcl = CO2 17 of 27 sulfates + hcl = SO2 18 of 27 how do you test for sulfur dioxide damp potassium dichromate paper. Turns to orange from green 19 of 27 sulfate ions white perticipate of barium sulfate 20 of 27 how to test for sulfate ions add hcl to get rid of carbonate and suflite ions. Then add barium solution 21 of 27 How to test for halides? Add nitric acid and silver nitrate solution 22 of 27 chloride halide gives off white percipitation of silver chloride 23 of 27 bromine halide gives off cream percipitation of silver bromide 24 of 27 iodide gives off yellow precipitation of silver iodide 25 of 27 test for halides use nitric acid not hcl 26 of 27 what does a test for nitrates produce ammonia 27 of 27
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