Simbolul chimic al fierului.
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Fierul
Quiz
•
Chemistry
•
1st Grade
•
Hard
Diana Salagean
Used 8+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
F
Fe
Fi
Fr
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fierul are valență variabilă.....
II. și III
I. și II
III. și. IV
I. și. III
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Care sunt aliajele fierului cu carbonul?
Otelul
Fonta
Limonit
Siderit
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Fe, se găsește în minereuri de tipul....
Hematit
Siderit
Pirită
Magnetita
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fierul conduce curentul electric și căldura?
Da
Nu
Foarte slab
Câteodată
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Proprietatea fierului de a fi tras în foi și fire se numește....
Duritate
Densitate
Maleabil și ductil
Lucios
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Duritatea fierului......
1
10
4
18
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