Les substàncies que no es poden descompondre mitjançant canvis químics reben el nom de
Estructura atòmica de la matèria

Quiz
•
Physics
•
8th Grade
•
Medium
Jaume Llombart
Used 2+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
elements
composts
compostos
molècules
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Substàncies pures que es poden descompondre donen lloc a substàncies pures simples són
elements
mescla
compostos
molècules
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Què distingeix un compost d’una mescla?
El compost té proporcions variables i la mescla, no
La mescla té proporcions variables i el compost, no
Les mescles no conserven propietats físiques; el compost, sí
Els components d’una mescla no es poden separar.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Es poden separar utilitzant mètodes de separació físics
Compostos
Elements
Mescles
Molècules
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Només es poden separar mitjançant reaccions químiques
Compostos
Elements
Mescles
Molècules
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Agrupacions estables i ordenades d’àtoms iguals, unides per enllaços químics.
Xarxes atòmiques
Àtoms aïllats
Compostos
Molècules
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Els àtoms de molts elements sòlids s’uneixen mitjançant enllaços químics
Xarxes atòmiques
Àtoms aïllats
Compostos
Molècules
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