
Evaluare: Apa - Formule și Proprietăți
Authored by Lacramioara Rusu
Chemistry
9th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este formula chimică a apei?
H₃O
H₂O
HO₂
OH₂
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care dintre următoarele proprietăți fizice ale apei este corectă la presiune atmosferică normală?
Punctul de fierbere este la 50° C
Punctul de îngheț este la 0° C
Densitatea maximă este la 10° C
Este în stare gazoasă la temperatura camerei
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care dintre următoarele reprezintă o utilizare industrială importantă a apei?
Doar pentru băut
Agent de răcire în procese industriale
Doar pentru irigații
Exclusiv pentru curățenie
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce proprietate unică a apei o face esențială pentru viață?
Este incoloră
Are gust
Este un solvent universal
Are miros
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La ce temperatură are apa densitatea maximă?
0 grade C
4 grade C
10 grade C
100 grade C
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