
La quantita´chimica
Authored by Nadia Mosca
Chemistry
9th Grade
Used 4+ times

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19 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Il numero di Avogadro corrisponde a
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
E' possibile convertire le moli in massa in grammi
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Una mole di azoto e una mole di ammoniaca hanno:
lo stesso numero di atomi
la stessa massa
lo stesso numero di molecole
la stessa energia cinetica
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quale campione ha la massa maggiore?
1,5 moli di Fe
1,5 moli di Ca
1,5 moli di Pb
La massa è uguale in tutti e tre i casi
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quale risposta è vera?
1 mole di NH3 contiene 3 moli di atomi di N e 3 moli di H
1 mole di NH3 contiene 1 mole di atomi di N e 3 moli di atomi di H
1 mole di NH3 contiene 1 mole di atomi di N e 1 mole di atomi di H
1 mole di NH3 contiene 1 mole di atomi di N e 1/3 di mole di atomi di H
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quale campione contiene il maggior numero di atomi di O?
10 g di O
10 g di O2
10 g di O3
il numero di atomi nei 3 casi è lo stesso
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cosa indica il numero di Avogadro?
Una costante chimica
Una costante fisica
Non so
Il numero di particelle contenute in una mole di sostanza
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