
Auksas - sidabras - cinkas - gyvsidabris
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
Reda Naikauskienė
Used 5+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kokie koeficientai ( eilės tvarka) turi būti įrašyti reakcijos lygtyje Ag2O(k)--- Ag(k) + O2(d)
2 4 1
4 1 2
2 1 4
1 4 2
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kurie du tarp išvardintų metalų Au, Zn, Ag, Hg - yra plastiškiausi?
Ag ir Hg
Au ir Zn
Ag ir Au
Zn ir Hg
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Parašykite vieną sidabro pakaitalą.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kurios dalelės metalų kristaluose laisvai ir netvarkingai juda?
Protonai.
Visi metaluose esantys elektronai.
Atitrūkę metalų atomų išorinių sluoksnių elektronai.
Metalų atomai.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Nurodykite, kuris metalas yra geriausias elektros laidininkas?
Hg
Au
Ag
Zn
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kuris metalas geriausiai tinka, norint išskirti cinką iš cinko chlorido vandeninio tirpalo?
Hg
Ag
Al
Au
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kas lemia būdingąsias metalų savybes?
Kristalinėse gardelėse esantys metalų jionai.
Tik išorinių sluoksnių elektronai.
Metalų atomai.
Laisvai judantys išorinių sluoksnių elektronai bei jonų išdėstymo tvarka metalų kristaluose,
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