Chemistry - testing for gasses 0.0 / 5 ? ChemistryEnergy of reactions/Exothermic and endothermic reactionsGCSEAQA Created by: LunaShomeiRoseCreated on: 13-12-18 16:18 Why are gasses hard to test? most are colourless and odorless 1 of 12 How can we test for hydrogen? place gas in a test tube and ignite a splint, bringing it close to the gas. If it makes a 'pop' sound, hydrogen is presnt 2 of 12 How do we test for oxygen? Do the same but with a splint that's been put out. If oxygen is present, it will reignite 3 of 12 You can test for carbon dioxide using l___ (bubble gas through this and it'll turn cloudy if it's CO2) limewater (aqueous calcium hydroxide solution) 4 of 12 acid and metal carbonate are placed in one test tube, connected to a test tube with __ in limewater 5 of 12 first the acid will react with the carbonate to produce... carbon dioxide 6 of 12 this travels through the tube connecting the test tubes. The limewater, if the gas is carbon dioxide, will.... turn cloudy 7 of 12 How can we test for chlorine? test tube filled with chlorine sample. hold damp litmus paper over it and over time, chlorine would bleach the paper (make it white) 8 of 12 ___ bleaches litmus paper chlorine 9 of 12 ___ reacts with a lit splint with a pop sound Hydrogen 10 of 12 _____ turns limewater cloudy Carbon dioxide 11 of 12 ___ reignites a glowing (already been lit + put out) splint Oxygen 12 of 12
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