Pavadavimo reakcijos 2

Pavadavimo reakcijos 2

9th Grade

15 Qs

quiz-placeholder

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Pavadavimo reakcijos 2

Pavadavimo reakcijos 2

Assessment

Quiz

Chemistry

9th Grade

Practice Problem

Hard

Created by

Reda Naikauskienė

Used 21+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Į magnio sulfato MgSO4 tirpalą įleista vario Cu juostelė. Kaip ši juostelė atrodė po kiek laiko?

liko nepakitusi

pasidengė magnio Mg sluoksniu

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Į keturis mėgintuvėlius, kuriuose buvo geležies Fe drožlių, įpilta skirtingų medžiagų tirpalų. Kuriame mėgintuvėlyje įvyko reakcija?

Fe(k) + KCl(aq)

Fe(k) + CuSO4(aq)

Fe(k) + ZnSO4(aq)

Fe(k) + AlCl3(aq)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Kuri dalelė yra reduktorius reakcijoje

Cu(k) + 2AgNO3(aq)----2Ag(k) + Cu(NO3)2(aq)

Cu0(k)

Ag0(k)

Ag+(aq)

Cu2+(aq)

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Elektronų atidavimas vadinamas......

redukcija

oksidacija

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elektronų prisijungimas vadinamas...

redukcija

oksidacija

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Oksidatorius elektronus ......

prisijungia

atiduoda

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Reduktorius elektronus ... .

prisijungia

atiduoda

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