periodic table and energy Flashcards
1
Q
halide ions
A
dissolve in nitric acid- prevent false pos from carbonate ions ppt out w Ag+
silver nitrate drowse
AgX ppt
cl white
br cream
I yellow
ammonia follow up test
cl dissolves in dilute
br in conc
I doesn’t
2
Q
carbonates
A
aqueous hcl
gas produced tested in limewater Ca(OH)2
effervescence cos co2 produced
3
Q
sulfates
A
acidify w dilute hcl
few drops of aqueous barium chloride
white ppt of BaSO4
4
Q
ammonium ions
A
aqueous sodium hydroxide
ammonia gas produced
very soluble in water so no effervescence
pungent smell/ red litmus paper blue