9. S-prvky Flashcards

1
Q

Kamenná sůl

A

NaCl

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2
Q

Glauberova sůl

A

Na2SO4 *10 H2O

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3
Q

Chilský ledek

A

NaNO3

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4
Q

Draselný ledek

A

KNO3

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5
Q

Sylvín

A

KCl

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6
Q

výroba sodíku/lithia

A

elektrolýza vlastních chloridových tavenin
2 Na+ + 2e- → 2 Na Redukce na katodě
2 Cl- - 2e- → Cl2 Oxidace na anodě

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7
Q

výroba draslíku

A

KCl + Na → K + NaCl

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8
Q

s1 prvek + voda

A

vodík + příslušný hydroxid
2Na + 2H2O → 2NaOH + H2

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9
Q

s1 prvek + vodík

A

hydrid (iontový)
2K + H2 → 2KH

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10
Q

spalování na vzduchu

A

Li = oxid
4Li + O2 → 2Li2O
Na = peroxid
2Na + O2 → Na2O2
K a dále = superoxidy
K + O2 → KO2

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11
Q

redukce kovů

A

redukují i nekovy -> explozivní reakce
SiF4 + 4K → Si + 4KF

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12
Q

s1 hydrid + voda

A

NaH + H2O → NaOH + H2

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13
Q

peroxid sodný + voda

A

Na2O2 + 2H2O → 2NaOH +H2O2

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14
Q

výroba peroxidu vodíku

A

Na2O2 + 2H2O → 2NaOH +H2O2

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15
Q

Solvayova metoda

A

1.NaCl + NH3 + CO2 + H2O → NaHCO3 + NH4Cl
2. 2NaHCO3 → Na2CO3 + CO2 + H2O

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16
Q

Magnezit

A

MgCO3

17
Q

Dolomit

A

CaMg(CO3)2

18
Q

Vápenec

A

CaCO3

19
Q

Sádrovec

A

CaSO4

20
Q

Anhydrit

A

CaSO4 * 2H2O

21
Q

Kazivec (fluorit)

A

CaF2

22
Q

Celestin

A

SrSO4

23
Q

Baryt

A

BaSO4

24
Q

s2 prvek + voda

A

Ca + 2H2O → Ca(OH)2 + H2 pomalejsi nez u s1

25
Q

s2 prvek + vodík

A

Ca + H2 → CaH2

26
Q

výroba s2 prvků

A

 Redukcí příslušných halogenidů sodíkem: CaCl2 + 2Na → 2NaCl + Ca

27
Q
A