Aluminijum i njegova jedinjenja Flashcards

1
Q

U grupi sa kojim elementima se nalazi aluminijum?

A

IIIa grupa
metaloid Bor
metali galijum, indijum, talijum i nihonijumom(veštački element)

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2
Q

Koja je zajednička elektronska konfiguracija IIIa grupe?

A

ns2 np1

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3
Q

Kako se dobija aluminijum?

A

Elektrolizom rastopa glinice u rastopljenom kriolitu Na3AlF6

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4
Q

Koje su fizičke osobine aluminijuma?

A

Sjajan metal, male gustine, velike provodljivosti, čvrst i rastegljiv

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5
Q

U kakvim oblicima se prodaje aluminijum?

A

žica, lim, tanke folije i prah

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6
Q

Sa čime aluminijum ne reaguje?

A

Kiseonikom, vodom i azotnom kiselinom

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7
Q

Koja legura aluminijuma reaguje sa vodom i kiseonikom?

A

Amalgam (Hg)

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8
Q

U čemu se rastvara aluminijum?

A

Kiselinama jer je amfoteran pri čemu se stvaraju hidatisani Al(H2O)6 joni +3 i aluminati kompleksna jedinjenja

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9
Q

Kako reaguje aluminijum sa oksidima metala?

A

Redukuje ih

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10
Q

U kojim mineralnim oblicima se u prirodi nalazi aluminijum?

A

Kordun Al2O3
sastavni deo rubina, safira i boksita Al2O3xnH2O

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11
Q

Šta su stipse?

A

Dvogube soli sumporne kiseline

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12
Q

Koja je formula stipse?

A

M+Al(SO4)2x12H2O

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13
Q

Koji metali se mogu nalaziti kao joni u stipsama?

A

Natrijum, kalijum ili amonijum jon

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14
Q

Kakve su strukture stipse?

A

Kristalne

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15
Q

Koja je najzastupljenija stipsa?

A

Kalijummova stipsa KAl(SO4)2x12H2O, koristi se u medicini i industriji koze

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