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Flashcards in DN Halide reactions Deck (23):
1

how many reactions with chloride

1

2

how many reactions with bromide

2

3

how many reactions with iodide

4

4

chloride product and observation

HCl - steamy fumes

5

Bromide product and observation, first reaction

HBr - steamy fumes

6

bromide product and observation, second reaction

Br2 - brown fumes
SO2 - colourless gas

7

iodide product and observation, first reaction

HI - steamy fumes

8

iodide product and observation, second reaction

I2 - purple fumes
SO2 - colourless gas

9

iodide product and observation, third reaction

S - yellow solid

10

iodide product and observation, fourth reaction

H2S - bad egg smell

11

Chloride reaction and type of reaction

NaCl + H2SO4 = NaHSO4 + HCl
acid-base

12

Bromide reaction and type of reaction, first reaction

NaBr + H2SO4 = NaHSO4 + HBr
acid-base

13

Bromide reaction and type of reaction, second reaction

H2SO4 + 2HBr = Br2 + SO2 + 2H2O
redox

14

Iodide reaction and type of reaction, first reaction

NaI + H2SO4 = NaHSO4 + HI
acid-base

15

Iodide reaction and type of reaction, second reaction

H2SO4 + 2HI = I2 + SO2 + 2H2O
redox

16

Iodide reaction and type of reaction, third reaction

H2SO4 + 6HI = S + 4H2O + 3I2

17

Iodide reaction and type of reaction, fourth reaction

H2SO4 + 8HI = H2S + 4H2O + 4I2

18

strongest reducing power

Iodide

19

explanation in reducing powers

As you go down the group despite the increase in nuclear charge, the outer electrons are further from the nucleus and there is more shielding so it is lost more easily

20

halide to halogen half equation

2X- = X2 + 2e-

21

H2SO4 = SO2

H2SO4 +2H+ 2E- = SO2 =2H2O

22

H2SO4 = S

H2SO4 + 6H+ + 6e- = S + 4H2O

23

H2SO4 = H2S

H2SO4 + 8H+ +8e- = H2S + 4H2O