Metalų korozija

Metalų korozija

5th Grade

16 Qs

quiz-placeholder

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Metalų korozija

Metalų korozija

Assessment

Quiz

Chemistry

5th Grade

Practice Problem

Hard

Created by

Elvyra Ajauskaite

Used 22+ times

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16 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Geležies paviršius suyra deguonies, vandens ir mineralinių druskų terpėje.

Nurodykite šio reiškinio pavadinimą.

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Dauguma metalų yra ..........spalvos.

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Parašykite reakcijos lygtį arba nurodykite jei reakcija nevyksta.

Zn + CuSO4

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Pabaigite reakcijos lygtį arba parašykite, kai reakcija nevyksta.


Cu + Cu(NO3)2

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Parašykite reakcijos lygtį arba nurodykite jei reakcija nevyksta.


Fe + CrCl3 -

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Nurodykite simbolius metalų , kurie nereaguoja su druskos rūgštimi,

Mg, Al, Cu, Ag, Fe, Zn, Ca, Cr

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Lydinys yra vienalytis ............................. (pvz., Bronza, žalvaris) mišinys.

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