Metallid. Sulamid
Authored by Anne Krull
Chemistry
10th Grade - Professional Development
Used 19+ times
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33 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuidas on keemilised elemendid perioodilisuse tabelis süstematiseeritud?
tähestiku järgi
tiheduse järgi
sulamispunkti järgi
aatommassi järgi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millist elementi iseloomustavad järgmised omadused: ρ=7,14 g/cm3, ts=18570C, tk=24820C, sinkja varjundiga hõbevalge metall
kroom
raud
hõbe
kuld
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Kus kasutatakse kroomi?
kraanid, veega kokku puutuvad pinnad
auto detailide tootmisel
värvitööstuses
keevitamisel
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millist metalli leidub nii pentlandiidis, milleriidis, kui ka garnieriidis?
nikkel
kroom
raud
magneesium
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millist elementi iseloomustavad järgmised omadused: ρ=8,9 g/cm3, ts=14550C, tk=29170C, hõbevalge läikiv metall?
kroom
raud
hõbe
nikkel
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millistest metallidest saadakse melhior?
vask ja nikkel
kroom ja nikkel
vask ja kroom
raud ja kroom
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millist elementi iseloomustavad järgmised omadused: ρ=7,14 g/cm3, ts=4190C, tk=9070C, hõbevalge sinaka varjundiga metall?
tsink
raud
hõbe
nikkel
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