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45 Terms
Complete combustion - products
water + carbon dioxide gas
Incomplete combustion - products
soot + water
Acid + metal —>
salt + hydrogen gas
Acid + metal oxide —>
salt + water
Acid + metal hydroxide —>
salt + water
Acid + metal carbonate —>
salt + water + carbon dioxide gas
Na salts
soluble
K salts
soluble
NH4 salts
soluble
N salts
soluble
PbCl2
insoluble
MgCl2
soluble
AgCl
insoluble (ion tests)
PbS
insoluble
BaS
insoluble
SCl2
insoluble
CaS
soluble
CO3 salts
insoluble
OH salts
insoluble
Lithium, Li+
red
Sodium, Na+
yellow
Potassium, K+
lilac
Calcium, Ca2+
brick red
Copper, Cu2+
blue-green
Aluminium, Al3+
white, colourless in excess
Calcium, Ca2+
white
Copper, Cu2+
blue
Iron, Fe2+
green
Iron, Fe3+
brown
Halides
few drops of dilute HNO3, few drops of AgNO3(aq)
Chloride precipitate colour
white
Bromine precipitate colour
cream
Iodine precipitate colour
yellow
Sulphate ions
few drops dilute HCL, few drop of BaCl(aq) - white precipitate
Carbonate ions
few drops of dilute HCl - bubbles of CO2
Litmus paper in acid
red
Litmus paper neutral
purple
Litmus paper in alkali
blue
Phenolphthalein in acid
colourless
Phenolphthalein neutral
colourless
Phenolphthalein in alkali
pink
Methyl orange in acid
red
Methyl orange neutral
yellow
Methyl orange in alkali
yellow