Chapter 11 Halogens Flashcards
0
Q
Color of chlorine?
A
Greenish gas
1
Q
Color of fluorine?
A
Pale yellow gas
2
Q
Color of bromine?
A
Red brown liquid
3
Q
Color of iodine?
A
Black solid
4
Q
F-f bond?
A
Weak
5
Q
Color trend?
A
Darker down
6
Q
Oxidising ability?
A
Increase up
7
Q
Reducing power?
A
Increases down
8
Q
Nacl+H2SO4?
A
NaHSO4+HCl, same as fluoride, steamy fumes of HCl
9
Q
NaBr+H2SO4?
A
NaHSO4+HBr
And:
2H+ + 2Br- + H2SO4 -> SO2 + H2O + Br2
Exothermic so vaporised Br
10
Q
Sodium Iodide + H2SO4?
A
8H+ + 8 I- + H2SO4 -> H2S + 4H2O + 4 I2
Oxidation from -6 to 0 to +2
11
Q
Reactions HNO3 and CO3 2-?
A
CO3 2- + 2H+ + 2NO3- -> CO2 + H2O + 2 NO3-
12
Q
Reaction HNO3 OH-?
A
OH- + H+ + NO3- -> H2O + NO3-
13
Q
AgF?
A
No precipitate, soluble
14
Q
AgCl?
A
White, dilute ammonia
