1. Din reacția Fe cu HCl rezultă:

test RC,RD si RS

Quiz
•

Mihaela Deleanu
•
Chemistry
•
8th Grade
•
3 plays
•
Hard
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
FeCl3
nu reacționează
FeCl2 și FeCl3
FeCl2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.Care dintre următoarele ecuații chimice sunt corecte:
Zn + 3HCl = ZnCl + H2
Cu + 2HNO3 = Cu (NO3)2 + H2
Al + S = AlS2
Ca + 2 HCl = CaCl2 + H2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.Următoarea afirmație este corectă
Fe reacționează cu CuSO4
Ag dezlocuiește hidrogenul din HCl
Na nu reacționează cu H2O
Cu reactioneaza cu HCl
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
4.Magneziul poate reacționa direct cu următoarele nemetale
neon
siliciu
clorul
oxigenul
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5.Care din elementele de mai jos pot arde în oxigen:
Mg, S, Na, C
Au, Ag, Cr
Ne, He
Cl2. I2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.Sunt posibile reacţiile dintre:
soluţie de sulfat de fier (II) şi o sârmă de cupru;
aluminiu şi oxidul feric
hidroxid de aluminiu şi hidroxid de sodiu
alt răspuns
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
7.Fierul
în reacţie cu clorul formează compusul FeCl3
este un metal alb argintiu
poate ruginii
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8.Identifica reactia de descompunere
H2O2 = H2O + O2
H2+O2=H2O
2H2O2 = 2H2O + O2
H2O2 = H2 + O2
9.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
9. A + BC = AC+ B reprezinta schema pentru
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