Se acoperă cu un strat protector foarte aderent de oxid, care îl protejează împotriva coroziunii

ENTALPIE. COROZIUNE. PARTEA II

Quiz
•
Science
•
9th Grade
•
Medium
IRINA MARIN
Used 1+ times
FREE Resource
24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
aluminiul;
cuprul
fierul
sodiul.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2O(l) → H2O(s) + Q
proces fizic endoterm
proces chimic exoterm
proces de oxido-reducere
proces fizic exoterm
proces reversibil
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CaCO3(s) + Q → CO2(g) + CaO(s)
proces fizic endoterm
proces chimic exoterm
proces chimic endoterm
proces fizic exoterm
proces reversibil
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2O(l) + CO2(g) ↔ H2CO3(aq)
proces fizic endoterm
proces chimic exoterm
proces chimic endoterm
proces fizic exoterm
proces reversibil
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
NaOH(aq)+ HCl(aq)→ NaCl(aq) + H2O(l) + Q
proces fizic endoterm
proces chimic exoterm
proces chimic endoterm
proces fizic exoterm
proces reversibil
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
I2(s) + Q → I2(g)
proces fizic endoterm
proces chimic exoterm
proces chimic endoterm
proces fizic exoterm
proces reversibil
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În condiții standard, pentru procesul Na(s) + H2O(l) → NaOH(aq) + 1/2H2(g), este adevărat că:
ΔfH0 Na>ΔfH0 H2
ΔfH0 H2O=ΔfH0 NaOH
ΔfH0 Na=ΔfH0 H2
ΔfH0 Na<ΔfH0 H2
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