
le leggi fondamentali della chimica
Quiz
•
Chemistry
•
1st - 12th Grade
•
Medium

Ilaria Cordì
Used 16+ times
FREE Resource
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25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
indicare il simbolo del sodio
S
So
Na
N
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quanti grammi di ossigeno reagiscono completamente con 4 g di idrogeno dando 36 g di acqua?
30
31
32
33
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
la materia è fatta da particelle microscopiche indivisibili e indistruttibili chiamate
elementi
composti
atomi
molecole
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
tutti gli atomi di un elemento sono uguali tra loro e hanno la stessa
forza
massa
carica
densità
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se si fa avvenire la reazione di combustione in un ambiente chiuso si dimostra che al termine della reazione la massa è
aumentata
diminuita
invariata
nulla
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
quando due o più elementi formano un composto, le quantità degli elementi che reagiscono sono in rapporto definito e costante
legge di lavoisier
legge di dalton
legge di proust
teoria atomica
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
con 12 g di carbonio possono reagire con 16 g di ossigeno per dare CO oppure
12 g di carbonio possono reagire con ____ di ossigeno per dare CO2
16g
20g
32g
44g
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