Sulful și compușii săi
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Stela Burcovschi
Used 27+ times
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7 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Selectează afirmațiile adevărate despre sulf.
Este un nemetal.
Are 16 protoni și 32 de neutroni.
În compuși manifestă valență variabilă: II, IV, VI.
Se găsește în stare nativă în rocile vulcanice.
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Selectează compușii în care sulful manifestă valența IV.
H2S
SO2
H2SO3
H2SO4
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Selectează substanțele care interacționează cu SO3.
H2O
Na2O
O2
NaOH
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Formula sulfatului de potasiu este...
K2SO4
K2SO3
K2S
K2S2O3
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Selectează afirmațiile adevărate cu privire la acidul H2S.
Este un acid dibazic, tare, neoxigenat.
Este un acid dibazic, slab, neoxigenat.
Formează un precipitat negru cu Pb(NO3)2.
Formează un precipitat negru cu KNO3.
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Selectează substanțele ce interacționează cu H2SO4.
H2O
Na2O
NaOH
HCl
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Masa molară a sulfatului de aluminiu este...
342 g/mol
123 g/mol
86 g/mol
310 g/mol
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