
Molecule
Authored by Adriana AMAZILITEI
Chemistry
7th Grade
Used 3+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sunt molecule simple următoarele substanțe:
CH4
H2
O2
NH3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Metanul are formula chimică:
CH4
NH3
N2
H2O
3.
MATCH QUESTION
1 min • 1 pt
Potrivește:
H2O
Metan
HI
Acid iodhidric
CH4
Acid clorhidric
HCl
Apa
NH3
Amoniac
4.
MATCH QUESTION
1 min • 1 pt
Potrivește: Apa are:
O2
3 legături simple polare
Amoniac
2 legături simple polare
Apa
este gaz care întreține viața
HCl
moleculă nepolară
N2
moleculă polară
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3 molecule de apă :
se scriu: 3H2O
se scriu: (H2O)3
conțin 6 atomi de H
conțin 1 atom de O
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
elementul P are Z=15 și A= 31, deci :
are 31 p+
se numește potasiu
este nemetal
formează ioni pozitivi
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