deguonis Flashcards

1
Q

simbolis

A

O

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2
Q

grupė, periodas

A

VIA, 2

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3
Q

Ar, elektroninė ir taškinė f.

A

Ar = 16,
2,6

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4
Q

molekulinė formulė

A

O2

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5
Q

molekulės taškinė ir struktūrinė f.

A

O = O

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6
Q

ch. ryšys molekulėje

A

kovalentinis nepolinis

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7
Q

oksidacijos laipsniai

A

-2

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8
Q

jonai

A

O2- oksido jonas

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9
Q

alotropija, izotopai

A

O2 - deguonis
O3 - ozonas
16,18,17O

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10
Q

paplitimas gamtoje

A

ore 21proc, žemės plutoje 13proc. (49 vieta)

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11
Q

fizikinės savybės

A

bespalvės, bekvapės dujos, blogai tirpsta vandenyje

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12
Q

svarbiausi junginiai

A

H2O, oksidai H2SO4…

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13
Q

deguonies gavimas pramonėje

A

distiliuojant orą, vandens elektrolizė

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14
Q

kaip atpažįstamas deguonis

A

rusenančia skalele

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