5 группа Flashcards

1
Q

Вскрытие и получение

A

FeV2O4 + NaCl + O2 =t= NaVO3 + Fe2O3 + Cl2
FeV2O4 + Cl2 = VOCl3 + FeCl3 + O2

V2O5 + Ca = CaO + V

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2
Q

Простые вещества

A

V + HF = H3[VF6] + H2
V + H2SO4 (k) =t= VOSO4 + SO2 + H2O

V + HNO3(p) = VO2NO3 + NO2 + H2O

V+ N =t= VN
V+ H2 =t= VH
V+Cl2 =t= VCl4
V+F2 =t= VF5

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3
Q

Оксиды

A

V9O , V4O - растворы O2 в ванадии

V2O5 + NH3 = V2O3 + N2 + H2O
V2O5 + HCl(k) = VOCl2 + Cl2 + H2O
V2O5+SO2 =t= V6O13 + SO3

NH4VO3=t= V2O5 + NH3 + H2O
NH4VO3=t(инертная атмосфера)= V3O7 + NH3 + N2 + H2O

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4
Q

Соединения Ванадия 2

A

Вниз по группе устойчивость высших с.о. повышается. У ванадия 4 самая стабильная в кислой среде, а 5 - в щелочной

V2O5 + Zn + H2SO4 = VSO4 + ZnSO4 + H2O
VSO4 + O2 = VOSO4
VSO4 + H2SO4 = V2(SO4)3 + H2
VSO4 + NaF + CdSO4 = Cd + Na3[VF6] + Na2SO4

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5
Q

Соединения Ванадия 3

A

V + V2O5 + HCl = VCl3 + H2O
VSO4 + VOSO4 + H2SO4 = V2(SO4)3 + N2 + H2O
VCl3 + NH2OH*HCl + h2o = VOCl2 + HCl
VCl3 + KCN = K3[V(CN)6] + KCl
V2O5 + H2SO4 + KSCN =эл ток= K3[V(SCN)6] + K2SO4 + O2 + H2O

VOSO4 + K2SO4 + H2SO4 = KV(SO4)2 + H2O + O2

V(OH)3 + O2 = VO(OH)2 + H2O
K2O + VO2 = KVO2 + O2

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6
Q

Соединения Ванадия 4

A
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7
Q

Соединения Ванадия 5

A
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8
Q
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