Gruppe 17: Halogener Flashcards

1
Q

Grundstoffer i gruppe 17

A

F Flour
Cl klor
Br brom
I iod
At astat
Huskeregel
Fissen Clør Bravt i Athen

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2
Q

Type, gr.17?

A

Ikke-metaller

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3
Q

Flours udseende ved SATP

A

Bleg gul gas

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4
Q

Klor udseende ved SATP

A

Bleg grøn gas

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5
Q

Brom ved SATP

A

Oileagtig rødbrun væske

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6
Q

Iod udsende ved SATP

A

Skinnende sort violet fast stof

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7
Q

Syre-base funktion af oxider

A

Flour neutral
Klor, brom og iod er sur

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8
Q

Standard reductionspotentialer

A

Falder ned gennem gruppen. Starter ved +2,87 for diflour og slutter ved +0,54 ved diiod.
Flour reagere med alt bortset fra ædelgasser

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9
Q

Bindingsenergi trends gruppen

A

Faldene fra Cl ved 240
F-F har 155, hvilket er en svag binding

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10
Q

Fremstilling af Cl2

A

Elektrolyse af NaCl
Anode: 2 Cl- -> 2e-
Katode: 2 H2O + 2e- -> H2 +2OH-

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