Prirodak - oxidy, halogenidy Flashcards by Nela Fryčová

Q

znacka, barva a lesk kremene

A

SiO2, ruzne zbarveni, skelny lesk

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Q

tvrdost kremenne

A

t=7, nestepny

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Q

vyuziti kremene:

A

v optice, sperky, vyroba skla

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Q

odrudy kremene:

A

růženin, citrín, záhněda, ametyst, křišťál, tygří oko, chaldedon, opál, achát

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Q

barva ruzeninu:

A

ruzova

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Q

barva citrinu:

A

zluta

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Q

barva zahnedy:

A

hneda

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Q

barva ametystu:

A

fialova

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Q

barva tygriho oka:

A

hnedy s prouzkama

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Q

barva chalcedonu:

A

svetle modry, sedy

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Q

barva opalu:

A

sedy, zluty, modry, ruzovy

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Q

co obsahuje opal?

A

obsahuje vazanou vodu => amorfni

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Q

barva achatu:

A

fialovy, sedy, bezovy

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Q

odruda achatu:

A

vrstevna odruda => (na rezu “letokruhy”)

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Q

znacka a tvrdost korundu:

A

Al2O3, t=9

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Q

odrudy korundu:

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A

smirek - sedy|rubin - cerveny|safir - modry

Q

pouziti korundu:

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A

brusny material, hodinky, laser, sperky

Q

znacka magnetovce (magnetitu) :

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A

Fe3O4 (=FeO x Fe2O3)

Q

barva, lesk a jakou vlastnost ma magnetovec?

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A

cerny, kovovy lesk a je magneticky

Q

vyuziti magnetovce:

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A

zelezna ruda, magnety

Q

znacka, barva a lesk hematitu (krevelu) :

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A

Fe2O3, cervenohnedy/sedocerny a ma kovovy lesk

Q

znacka, vlastnost a barva limonitu (hnědelu) :

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A

Fe2O3 x n H2O, je amorfni, hnedocerny

Q

vyuziti limonitu:

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A

zelezna ruda

Q

znacka, barva uraninitu (smolinec) :

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A

UO2, sedocerny

vlastnost uraninitu:

radioaktivni

ceho je uraninit ruda?

je rudou uranu

znacka a barva bauxitu:

Al2O3 x nH2O a je sedy

vlastnost bauxitu:

je amorfni

ceho je bauxit ruda?

je rudou hliniku

vyskyt bauxitu:

vyskyt v madarsku

jaky mame halogenidy?

sul kamennou (halit) a fluorit (kazivec)

znacka a barva soli kamenne:

NaCl, je bezbarvy nebo bily nerost

tvrdost soli kamenne:

mekka - t=2

soustava soli kamenne:

krychlova soustava

pouziti soli kamenne:

posyp vozovek, potravinarstvi, chem. prumysl

znacka, barva a tvrdost fluoritu:

CaF2, je fialovy/zeleny/sedy, t=4

jakou stepnost ma fluorit?

dobrou stepnost

pouziti fluoritu:

vyroba sloucenin fluoru