
varis - geležis - aliuminis
Authored by Reda Naikauskienė
Chemistry
9th Grade
Used 13+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kurios dalelės metalų kristaluose laisvai ir netvarkingai juda?
Protonai.
Atitrūkę metalų atomų išorinių sluoksnių elektronai.
Visi metaluose esantys elektronai.
Metalų atomai.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Keturi mokiniai pirštais laiko po vieną vienodo ilgio ir skersmens metalinį strypelį: vienas - geležinį, antras - varinį, trečias - aliumininį, ketvirtas - švininį.Visi mokiniai vienu metu įkišo strypelius į liepsną. Kuris greičiausiai pajus karštį?
Pirmasis.
Antrasis.
Trečiasis.
Ketvirtasis.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kuri reakcija vyks?
Cu(k) + H2O(s)
Cu(k) + HCl(aq)
Cu(k) + Hg(NO3)2(aq)
Cu(k) + Nacl(aq)
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kas lemia būdingąsias metalų savybes?
Tik išorinių sluoksnių elektronai.
Kristalinėse gardelėse esantys metalų jonai.
Metalų atomai.
Laisvai judantys išorinių sluoksnių elektronai bei jonų išsidėstymo tvarka metalų kristaluose.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kiek neutronų turi geležies jonas Fe2+
30
32
26
28
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kurioje eilutėje visi išvardinti metalai išstums varį iš tirpios jo druskos?
Fe ir Ag
Ag ir Hg
Mg, Zn ir Fe
Zn, Fe ir Ag
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Parašykite vieną iš vario lydinių?
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