1-KISIK Flashcards

1
Q

LAB:
segrevanje oksosoli
KClO3

A

2 KClO3 → 2 KCl + 3 O2

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2
Q

LAB:
segrevanje oksosoli
KNO3

A

2 KNO3 → 2 KNO2 + O2

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3
Q

LAB:
segrevanje oksosoli
HgO

A

2 HgO → 2 Hg + O2

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4
Q

v prejšnjem stoletju edini tehnološki način pridobivanja kisika

A

2 BaO2 → 2 BaO + O2

pri 700ºC teče v desno, pri 500ºC pa v levo

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5
Q

oksidacija vodikovega peroksida s kalijevim
manganatom VII
SAIDLOVA APARATURA

A

2 KMnO4 + 5 H2O2 +3 H2SO4 → 2 MnSO4 + K2SO4 +8 H2O + 5 O2

Brez segrevanja

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6
Q

oksidni ion protolitsko reagra z vodo

A

O2- + H2O → 2 OH-

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7
Q

raztapljanje ionskih oksidov v vodi

Na2O

A

Na2O + H2O → 2 NaOH

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8
Q

raztapljanje ionskih oksidov v vodi

CaO

A

CaO + H2O → Ca(OH)2

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9
Q

Molekulski (kovalentni) oksidi + voda

A

N2O5 + H2O → 2 HNO3

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10
Q

Molekulski (kovalentni) oksidi + voda

A

SO2 + H2O → „H2SO3“

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11
Q

Reakcije oksidov s kislinami

CaO

A

CaO + 2HCl → CaCl2 + H2O

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12
Q

Reakcije oksidov z bazami

N2O5

A

N2O5 + 2 NaOH → 2 NaNO3 + H2O.

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13
Q

amfoterni oksidi - ZnO kislo

A

ZnO + 2 HCl → ZnCl2 + H2O

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14
Q

amfoterni oksidi - ZnO bazično

A

ZnO + 2 NaOH + H2O → Na2[Zn(OH)4]

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15
Q

Ozon je močnejši oksidant od kisika.

Ag

A

2 Ag + 2 O3 → Ag2O2+ 2 O2

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16
Q

Ozon je močnejši oksidant od kisika.

I-

A

2I- + O3 + H2O → I2 + 2OH- + O2

17
Q

LAB: nastanek H2O2

NE GRE direktno iz H2 in O2, ker nastane VODA

A

BaO2 + H2SO4 → H2O2 + BaSO4

18
Q

kataliziran razpad H2O2

A

H2O2 + (MnO2) → O2 + 2 H2O + (MnO2)

19
Q

H2O2 je dokaj močan oksidant KISLO

A

2 KI + H2O2 + H2SO4 → I2 + K2SO4 + 2 H2O

20
Q

H2O2 je dokaj močan oksidant BAZIČNO

A

PbS + 4 H2O2 → PbSO4 + 4 H2O

21
Q

H2O2 + Fe2+

A

H2O2 + Fe2+ → H2O + Fe3+

22
Q

Z močnejšimi oksidanti reagira H2O2 kot reducent

CaCl(ClO)

A

CaCl(ClO) + H2O2 → CaCl2 + H2O + O2

23
Q

Z močnejšimi oksidanti reagira H2O2 kot reducent

PbO2

A

PbO2 + H2O2 + 2 HNO3 → Pb(NO3)2 + 2 H2O + O2

24
Q

Vodikov peroksid je šibka kislina

+ NaOH → slabo topen peroksid

A

H2O2 + 2 NaOH + 6 H2O → + Na2O2 * 8 H2O

25
Q

Vodikov peroksid je šibka kislina

+ Ba(OH)2 → slabo topen peroksid

A

H2O2 + Ba(OH)2 + 6 H2O → BaO2 * 8 H2O

26
Q

(dokaz Ti, H2O2)

A

TiO(SO4) + H2SO4 + H2O2 + H2O → [Ti(O2)(SO4)2]2- + 2 H3O+