Vápník Flashcards

0
Q
2 Ca + O2 
3 Ca + N2
CaH2 + 2 H2O
Ca + 2 H2O
Ca + H2
A
2 CaO
Ca3N
Ca(OH)2 + 2 H2
Ca(OH)2 + H2 (příprava vodíku)
CaH2
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1
Q

Vápník

A

Velmi reaktivní za pokojové teploty

biogenní, zásaditý

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2
Q

CaCO3

A

Pálení vápence, hašené vápno
Potravinářství, smetana, cukrovarnictví, změkčování vody

Speciální typy - křídla, mramor, travertin

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3
Q

Pálení vápna

A

CaCO3 –> CaO + CO2

Pálené vápno

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4
Q

Hašení vápna

A

CaO + 2 H2O –> Ca(OH)2

Vápenné mlíko

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5
Q

Ca(HCO3)2 + Ca(OH)2
Mg(HCO3)2 + Ca(OH)2
CaCO3 + 2 HCl
Ca(OH)2 + CO2

A

2 CaCO3 + 2 H2O
MgCO3 + CaCO3 + 2H2O
CaCl2 + CO2 + H2O
CaCO3 + H2O + teplo

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6
Q

CaCl • Ca(ClO)2

A

Dezinfekce

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7
Q

CaOCl2

A

Chlorové vápno

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8
Q

CaCl2

A

Vysoušedlo,

postřik proti namrzání

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9
Q

CaC2

A

Karbid vápenatý

Příprava acetylenu

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10
Q

CaCN2

A

Kyanamid vápenatý
Dusikate hnojivo
Zisk kyanidu
Hydrolyzuje v pude

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11
Q

CaSO4 • 2 H2O

A

Sádrovec

Složka cementu

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12
Q

CaSO3 • 1/2 H2O

A

Složka cementu

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13
Q

CaF2

A

Fluorit, kazivec

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14
Q

Ca(NO3)2

A

Ledek vápenatý,
Mořský ledek
Hnojivo

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15
Q

3 Ca(PO4)2 • CaCl2

A

Apatit

16
Q

Superfosfát. hnojivo

A

Ca(H2PO4)2 + 2 CaSO4 • 2 H2O

17
Q

CaC2 + 2 H2O
CaC2 + N2
Ca(PO4)2 + H2SO4

A

C2H2 + Ca(OH)2
CaCN2 + C
CaSO4 + CaHPO4