
chimica 1
Authored by Stefano Cannioto
Chemistry
12th Grade
Used 6+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Che tipo di legame chimico intercorre tra gli atomi del cloruro di sodio (NaCl)
ionico
covalente puro
metallico
idrogeno
covalente polare
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quale tra le seguenti sostanze evapora per prima
alcool
acqua
solfato di rame
ferro
nessuna delle risposte
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quale tra le seguenti bilance presenta sensibilità maggiore
bilancia analitica
bilancia da cucina
bilancia tecnica
bilancia pesa persone
bilancia di precisione
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In una camera cromatografica, la fase mobile é:
solvente o eluente
fase stazionaria
campione
soluto
carta da filtro
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quale tecnica useresti per separare un miscuglio costituito da sale e sabbia
cromatografia
centrifugazione
filtrazione
distillazione
elettroforesi
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dopo centrifugazione, il solido sull'estremità inferiore della provetta prende il nome di:
surnatante
fondale
residuo
precipitato
filtrato
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Nei saggi alla fiamma quale senso usiamo per riconoscere le diverse sostanze
udito
olfatto
vista
gusto
tatto
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