. Flashcards

Pasiruosimas kontruiy

1
Q

Tarp kurių elementų susidaro joninis ryšys?

A

Metalo ir nemetalo

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2
Q

Kada rasant reakcijos lygtį reikia dauginti?

A

Kai skaiciu keliame i prieki

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3
Q

Ka daro reduktorius ir oksidatorius?

A

oksidatorius redukuoja o reduktorius oksiduoja

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4
Q

reduktorius prijungia (+) ar atiduoda (-)?

A

atiduoda

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5
Q

Kas yra redukcija?

A

Elektronu prisijungimas

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6
Q

Oksidacija tai..

A

Elektronu atidavimas

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7
Q

Kas yra elektrolitas?

A

medz kuriu vandeniniai tirpalai arba lydalai praleidzia elektros srove

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8
Q

Kas yra neelektrolitas?

A

Medziagos, tirpalai arba lydalai kurie nepraleidzia elektros sroves

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9
Q

Kas yra disociacija?

A

lydomu arba tirpinamu joniniu junginiu skaidymasis i jonus

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10
Q

Vandenilinis ryšys tai..

A

cheminis rysys susidarantis tarp molekules vandenilio atomo ir kitos molekules labai elektro neigiamo atomo

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11
Q

Kaip jis zymimas (vand. rysys)?

A

trimis taskais

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12
Q

Kokios medziagos ir periodines lenteles yra labai elektroneigiamos?

A

O,N,F,Cl

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13
Q

Hidratuotas jonas -

A

Jonas apsuptas vandens

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14
Q

Hidratacija -

A

poliniu vandens molekuliu prisijungimas prie jonu

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15
Q

Egzotermine reakcija -

A

issiskiria siluma

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16
Q

Endotermine reakcija -

A

siluma sunaudojama

17
Q

Kada tirpalas tampa laidus elektrai?

A

Istirpinus medziaga disosijuojancia i jonus

18
Q

Ar sausos medžiagos praleidžia elektros srovę?

A

Ne

19
Q

Kokia medžiaga praleidžia elektros srovę?

A

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