Introduzione alla chimica
Quiz
•
Chemistry
•
1st Grade
•
Hard
Francesco Marino
Used 64+ times
FREE Resource
23 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alcune grandezze del S.I. si dicono fondamentali perché
sono indipendenti le une dalle altre.
sono le più importanti.
hanno ciascuna una propria unità di misura.
sono state definite per prime.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indica tra i seguenti l’unico dato espresso in modo corretto.
Volume = 70,0 L
m = kg 40,3
l = 35 metri
V = 7,5 m3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quale delle seguenti non è una grandezza fondamentale?
massa
temperatura
forza
tempo
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
45 °C equivalgono a:
228 K
318 K
–228 K
228 °K
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La temperatura di ebollizione normale dell’acqua è:
100,15 K
273,15 K
373,15 K
173,15 K
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è la differenza tra miscugli e sostanze?
I costituenti delle sostanze non sono visibili neppure al microscopio, quelli dei miscugli sì
La composizione dei miscugli è fissa quella delle sostanze no
I miscugli sono formati sempre da più di un componente, le sostanze da uno solo
I miscugli sono sistemi eterogenei, le sostanze sono sistemi omogenei
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le soluzioni sono:
sostanze pure
miscugli eterogenei
emulsioni
miscugli omogenei
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