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Testing for ions

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steenie's version from 2015-06-08 13:37

Section 1

Question Answer
Cl2Bleaches damp litmus paper
NH3turns damp red litmus paper blue
KLilac flame
NaStrong orange
NH4Add NaOH, then test for NH3
Cu2+Add to NaOH = blue precipitate
Fe2+Add to NaOH = green precipitate
memorize

Section 2

Question Answer
CaBrick red (Orangey red) flame
LiRed
ClAdd HNO3 + silver nitrate = white precipitate
BrAdd HNO3 + silver nitrate = cream precipitate
IAdd HNO3 + silver nitrate = yellow precipitate
Fe3+Add to NaOH = brown precipitate
SulphatesAdd HCl then Barium Chloride = white precipitate
memorize

Section 3