F321 equations

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Ionisation energy
X(g) -> X+(g) + e-
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2nd ionisation energy
X+(g) -> X2+ +e-
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metaloxide+acid->salt +H2O (group 2)
e.g. CaO(s)+2HCl(aq)->CaCl2(aq)+H2O(l)
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metal carbonate+acid->salt+CO2+H2O
e.g.CaCO3(s)+2HCl(aq)->CaCl2(aq)+CO2(g)+H2O(l)
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acid+alkali->salt+water
e.g. NaOH(aq)+HCl(aq)->NaCl(aq)+H2O(l)
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group 2 elements with oxygen->oxide
e.g. Ca+1/2O2->CaO
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group 2 elements with water->hydroxide and hydrogen
e.g. Ca(s)+2H2O(l)->Ca(OH)2(aq)+H2(g)
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group 2 oxide with water->hydroxide(aq)
e.g. MgO(s)+H2O(l)->Mg(OH)2(aq)
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thermal decomposition of the carbonates->metal oxide and CO2
e.g. MgCO3(s)->MgO(s)+CO2(g)
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halides
Cl2(yellow)(aq)+2Br-(aq)->2Cl-(aq)+BR2(aq) orange...organic solvent->Br2(org)=orange
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halides
Cl2(yellow)(aq)+2I-(aq)->2Cl-(aq)+I2(aq) brown...organic solvent->I2(org)=purple
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halides
Br2(orange)(aq)+2I-(aq)->2Br-(aq)+I2(aq) brown...organic solvent->I2(org)=purple
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water treatment with chlorine
Cl2+H2O->HCl+HOCl
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making bleach
Cl2+2NaOH->NaClO+NaCl+H2O
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testing for halide ions X=Cl/Br/I
adding aqueous silver nitrate solution= Ag+(aq)+ X- ->AgX(s) AgCl=white ppt, AgBr=cream, AgI=yellow
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testing for halide ions
dilute ammonia solution: Chloride= solid dissolves Bromide and Iodide= solid remains. Concentrated ammonia solution, Bromide+dissolves, Iodide=remains
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Other cards in this set

Card 2

Front

X+(g) -> X2+ +e-

Back

2nd ionisation energy

Card 3

Front

e.g. CaO(s)+2HCl(aq)->CaCl2(aq)+H2O(l)

Back

Preview of the back of card 3

Card 4

Front

e.g.CaCO3(s)+2HCl(aq)->CaCl2(aq)+CO2(g)+H2O(l)

Back

Preview of the back of card 4

Card 5

Front

e.g. NaOH(aq)+HCl(aq)->NaCl(aq)+H2O(l)

Back

Preview of the back of card 5
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