Recapitulare
Authored by Maria Bora
Chemistry
8th Grade
Used 4+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In atmosfera umeda, fierul se acopera cu un strat protector de rugina.
Adevarat
Fals
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Adevarat
Fals
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cuprul este un metal ductil si foarte putin reactiv.
Adevarat
Fals
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Aurul reactioneaza cu apa.
Adevarat
Fals
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pe cuiul de fier se depune un strat roscat de cupru metalic, iar solutia se decoloreaza.
Scrieti reactia chimica pe baza acestui enunt.
6.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Completeaza spatiile libere pentru a obtine enunturi adevarate:
Magneziul reactioneaza cu apa doar la incalzire, deci este mai putin ................................. decat sodiul.
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Completeaza spatiile libere pentru a obtine enunturi adevarate:
Sodiul si potasiul se afla in tabelul periodic in grupa ................................ .
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