
test RC,RD si RS
Authored by Mihaela Deleanu
Chemistry
8th Grade
Used 3+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Din reacția Fe cu HCl rezultă:
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
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