Chemistry tests for cations,anions,gases water & halides 0.0 / 5 ? ChemistryTesting and analysing substancesIGCSEEdexcel Created by: marsbar1Created on: 02-01-14 18:49 Flame test for Li? Burns crimson red 1 of 22 Flames test for Na+? Burns yellow orange 2 of 22 Flame test for K+? Burns lilac 3 of 22 Flame test for Ca ? Burns brick red 4 of 22 Are metal hydroxides insoluble or soluble Many are insoluble and with a particular colour 5 of 22 Colour of Cu2+ OH Blue 6 of 22 Colour of Fe3+ OH Reddish brown 7 of 22 Colour of Fe2+OH Sludgey green 8 of 22 Test for ammonia gas? NH3 turns red litmus paper blue & smells of cat wee and makes eyes water 9 of 22 Test for ammonium IONS? NH4 +gives off ammonia with NaOH 10 of 22 Detecting carbonates? Add HCl to give off CO2 11 of 22 Detecting sulpates ? Add BaCl and HCl to give BaSO4 ( white) 12 of 22 Detecting halides? Add nitric acid and silver nitrate to give silver halide 13 of 22 Silver chloride colour White ppt 14 of 22 Silver bromide Cream ppt 15 of 22 Silver iodide Yellow ppt 16 of 22 Chlorine gas? Bleaches litmus paper 17 of 22 O2 test Re lights glowing splint 18 of 22 CO2 test Turns lime water milky 19 of 22 H2 test Squeaky pop with lighted splint 20 of 22 Ammonia Turns red litmus paper blue ( alkaline) 21 of 22 Water Anhydrous copper sulphate (white) to hydrated Cu SO4 ( blue) 22 of 22
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