
Molecule.Formule chimice
Authored by Ionut Boștinaru
Chemistry
9th Grade

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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Molecula de acid sulfuric conține:
1 atom O, 3 atomi S,5 atomi H
2 atomi S, 3 atomi H, 4 atomi O
4 atomi S, 3 atomi H, 2 atomi O
2 atomi H , 1 atom S, 4 atomi O
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Molecula de acid azotic conține:
1 atom H, 1 atom N, 3 atomi O
2 atomi H, 1 atom N, 3 atomi O
1 atom H, 2 atomi N, 3 atomi O
1 atom H, 1 atom N, 4 atomi O
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Formula apei oxigenate este...........
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Formula chimică a metanului este................
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Formula chimică a amoniacului este:
NH
NH2
NH4
NH3
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