CHEM2 Key equations

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  • Created by: Stacy
  • Created on: 30-05-14 19:53
Reaction of chlorine with water
Cl2(g) + H2O(l) --> HCl(aq) + HClO(aq)
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Reaction of chlorine with sodium hydroxide solution
Cl2(g) + 2NaOH --> NaCl(aq) + NaClO(aq) + H2O(l)
2 of 6
Reaction of chloride ions with conc. sulphuric acid
NaCl(s) + H2SO4(l) --> NaHSO4(s) + HCl(g)
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Reaction of bromide ions with conc. sulphuric acid
NaBr(s) + H2SO4(l) --> NaHSO4(s) + HBr(g) - then - 2HBr(g) + H2SO4(l) --> Br2(l) + 2H2O(l) + SO2(g)
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Reaction of Iodide ions with conc. sulphuric acid
NaI(s) + H2SO4(l) --> NaHSO4(s) + HI(g) - then - 8HI(g) + H2SO4(l) --> 4I(l) + 4H2O(l) + H2S(g)
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Test of halide ions - chloride
Ag+(aq) + Cl-(aq) --> AgCl(s)
6 of 6

Other cards in this set

Card 2

Front

Cl2(g) + 2NaOH --> NaCl(aq) + NaClO(aq) + H2O(l)

Back

Reaction of chlorine with sodium hydroxide solution

Card 3

Front

NaCl(s) + H2SO4(l) --> NaHSO4(s) + HCl(g)

Back

Preview of the back of card 3

Card 4

Front

NaBr(s) + H2SO4(l) --> NaHSO4(s) + HBr(g) - then - 2HBr(g) + H2SO4(l) --> Br2(l) + 2H2O(l) + SO2(g)

Back

Preview of the back of card 4

Card 5

Front

NaI(s) + H2SO4(l) --> NaHSO4(s) + HI(g) - then - 8HI(g) + H2SO4(l) --> 4I(l) + 4H2O(l) + H2S(g)

Back

Preview of the back of card 5
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