
Geležis - švinas - magnis
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Reda Naikauskienė
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kuriai grupei priklauso magnis?
Šarminiams metalams
III A grupei.
Šarminių žemių metalams.
IA grupei.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri formulė yra geležies(II) sulfato heptahidrato?
FeSO4·H2O
FeSO4·7H2O
FeSO4·5H2O
FeSO4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Vienas iš geležies lydinių yra ketus. Kiek procentų anglies yra ketuje?
0,1-2 proc.
10-20 proc.
2-6 proc.
1-2 proc.
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Užrašykite elemento simbolį, kurio dedama gaunat geležies lydinį plieną.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokia yra geležies ypatinga savybė?
Praleisti elektrą ir šilumą.
Įsimagnetinti.
Blizgėti.
Lydytis.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koks magnio atomo, turinčio 14 neutronų masės skaičius?
12
14
24
26
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kiek neutronų turi geležies jonas Fe2+
26
28
23
32
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