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Samenvatting Moleculaire stoffen - Scheikunde hoofdstuk 3 vwo 4 - Chemie Overal

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Bevat een samenvatting van heel hoofdstuk 3 uit Chemie Overal van vwo 4. Gaat over verschillende dingen, zoals bindingen, bouw van stoffen en molair volume.

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Secondary school
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Course
School year
4

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Summarized whole book?
No
Which chapters are summarized?
Hoofdstuk 3
Uploaded on
September 24, 2025
Number of pages
3
Written in
2023/2024
Type
Summary

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Hoofdstuk 3


Bouw van stoffen​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Voorwaarde elektrische stroom geleiden: geladen deeltjes die vrij kunnen bewegen

3 soorten stoffen:
moleculaire stoffen niet-metalen oranje vakjes

zouten metaal + niet-metaal gele en oranje vakjes

metalen metaal gele vakjes


Metalen:
●​ Geleiden stroom in vaste en vloeibare fase
●​ Metaalrooster
●​ Makkelijk buigbaar, omdat de negatieve elektronen de positieve ionen bij elkaar houden
en alle positieve ionen even groot zijn.
●​ Legering - alliage = mengsel van metalen → steviger

Zouten
●​ Geleiden stroom in vloeibare fase
●​ Ionrooster
●​ Kunnen niet buigen: positieve en negatieve ionen zitten om en om, als je buigt komt +
tegenover + en - tegenover - → stoot elkaar af. Ook verschillen de ionen van grootte →
schuiven niet goed.




Moleculaire stoffen
●​ Geleiden geen stroom → want opgebouwd uit ongeladen deeltjes.
●​ Molecuulrooster




Bindingen​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Metaalbinding: aantrekking tussen positieve ionen en vrije elektronen
-​ sterke binding
-​ hoog smeltpunt

Ionbinding: aantrekking tussen positieve en negatieve ionen
-​ Sterke binding, sterker dan Van der Waalsbinding
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