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Samenvatting Chemie

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Samenvatting: chemie thema 3

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Institution
Secondary school
Study
2e graad
Course
School year
3

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Uploaded on
June 12, 2022
Number of pages
7
Written in
2021/2022
Type
Summary

Subjects

Content preview

T3 p.100-150
 Enkelvoudige en samengestelde stoffen
Enkelvoudige stoffen kunnen niet worden ontleed, bestaan uit 1 atoom




Samengestelde stoffen kunnen wel ontleed worden, meerdere
atoomsoorten




- Analyse en synthese



Analyse = ontledingsreactie
Verschillende ontledingen soorten

- Thermolyse = ontleding door toevoegen van warmte
- Elektrolyse = ontleding door toevoegen van elektrische energie

Bv: AB A+B


Synthese = verbindingsreactie
BV: A+B AB



- Symbolische schrijfwijze

Enkel. Stof
Symbool element




index

, Samengestelde stoffen




elk element bestaat uit een index


Indices = index geven het aantal atomen per atoomsoort in 1 molecule weer
Coëfficiënt geeft aantal molecule weer
Bv.

Coëfficiënt: 4 = er zijn 4 moleculen

Index: 2= er zijn 2 H in 1 moleculen




 Systematische naamgeving


Enkel. Stof: x + naam van het element
Samen. Stof: x + naam element + Y + stam van latijnse naam 2 element +
uitgang -IDE



- Latijnse stammen

B brom- F fluor- N nitr- P fosf-
r
Cl chlor- I jod- O ox- S sulf-




- Index wordt geschreven door een telwoord
( mono mag worden weggelaten)

1 (mono) 3 tri 5 penta 7 hepta 9 nona
2 di 4 tetra 6 hexa 8 octa 1 deca
0



Bv: S8 = octazwavel
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