Solid sublimes (solid reforms in upper part of test tube, when heated.
ammonium chloride
1 of 21
2KNO3 (s) -> 2KNO2 (s) + O2 (g)
thermal decomposition potassium nitrate
2 of 21
flame test, crimson
lithium
3 of 21
ft, yellow
sodium
4 of 21
ft, lilac
potassium
5 of 21
ft, yellow/red (brick red)
calcium
6 of 21
ft, red
strontium
7 of 21
ft, pale/apple green
barium
8 of 21
Add dilute NaOH & warm, test any gas evolved: Damp red and damp blue litmus paper
ammonia gas
9 of 21
Glass rod dipped into conc. HCl, white smoke
ammonium chloride
10 of 21
Add acid to a chloride & test any gas evolved: Glass rod dipped in conc. ammonia Damp red and damp blue litmus paper, effervescence and white smoke
hydrogen chloride
11 of 21
Add acid to a bromide, steamy fumes and red/brown gas
Hydrogen bromide
12 of 21
Add acid to an iodide, Steamy fumes Purple vapour Yellow solid Bad egg smelling gas
Hydrogen iodide Iodine Sulphur Hydrogen Sulphide
13 of 21
Add dilute nitric acid to solution of unknown and then silver nitrate, White precip., turns purple on standing; soluble in dilute ammonia
chloride
14 of 21
Add dilute nitric acid to solution of unknown and then silver nitrate,Cream precip., insoluble in dilute but soluble in conc. ammonia
bromide
15 of 21
Add dilute nitric acid to solution of unknown and then silver nitrate, Yellow precip., insoluble in conc. ammonia
iodide
16 of 21
A few drops of dilute HCl are added to unknown solution, then a few drops of barium chloride solution, White precipitate
sulphate
17 of 21
Add Devarda’s alloy (or aluminium powder) and dilute NaOH, warm & test any gas evolved: Glass rod dipped in conc. HCl Red litmus paper, Effervescence (bubbles) White smoke Litmus goes blue
nitrate
18 of 21
Add dilute NaOH to unknown solution, slightly white precipitate
calcium compound
19 of 21
Add dilute NaOH to unknown solution, white precipitate
magnesium compound
20 of 21
Add magnesium or zinc to a solution of unknown & warm Test any gas evolved with a burning splint, Effervescence (bubbles) Ignites w/ squeaky pop
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