Obținerea și proprietățile fizice ale metalelor
9th Grade
•9 Qs
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Obținerea și proprietățile fizice ale metalelor
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
Stela Burcovschi
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cel mai dur metal este...
Cr
Ca
Cu
Fe
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Are cel mai puternic luciu metalic...
Au
Ag
Al
Fe
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cel mai greu fuzibil metal este...
Mercur
Wolfram
Argint
Aur
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cel mai plastic metal este...
Argint
Aur
Crom
Aluminiu
5.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
Este un metal nativ...
Aur
Fier
Sodiu
Aluminiu
6.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Selectează propeietățile fizice ale aluminiului.
Ușor
Conduce bine curentul electric
Greu fuzibil (are temperatură înaltă de topire)
Dur
7.
MULTIPLE SELECT QUESTION
30 sec • 4 pts
Sunt metode de obținere ale metalelor din oxizi... (sunt mai multe variante de răspuns)
Hidrometalurgia
Arderea sulfurilor
Reducerea cu hidrogen
Reducerea cu cocs
8.
MULTIPLE SELECT QUESTION
45 sec • 4 pts
CO
CaO
Al
9.
MULTIPLE SELECT QUESTION
1 min • 4 pts
Selectează reacțiile corecte cu privire la obținerea metalelor (mai multe variante sunt corecte).
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