Graad 8 Natuurwetenskappe (NW) Opsommings Kwartaal 2: Die opsommings is saamgestel deur die Via Afrika handboek se werk op te som. Opsommings is in Afrikaans met aanvullende en skriftelike notas wat deur die opsteller saam gestel is.
Afdeling 2: Materie en materiale
Onderwerp 1: Atome
Onde...
, Mengsels van elemente en verbindings
Elemente (voortgesit)
Elemente en verbindings
Atome kan molekules van
word dikwels saam gemeng
verbindings te vorm
• Die lug is 'n mengsel van elemente (stikstof en
suurstof) en verbindings (waterdamp en • Verskillende atome kan verbind om molekules
swaeldioksied). O1: Atome te vorm - molekules van verbindings.
•
• Hierdie stowwe is mengsels - hulle is nie chemies (B)
gebind nie en hul hoeveelhede kan verskil.
• Verbindings
•
Verbindings bestaan uit atome
Verskillende metodes word gebruik
• Sample
om mengsels en verbindings te skei
Mengsels word geskei deur fisiese metodes -
handskeiding, skeiding met magnete, filtrasie
en distillasie.
Verbindings word deur chemiese
•
reaksies gevorm
Atome word nader mekaar gebring in 'n
•
van verskillende elemente
Wanneer 2 of meer verskillende atome in 'n
vaste verhouding gebind word, vorm dit
molekules van verbindings.
chemiese reaksie - die atome het gebind. • Molekules van verbindings kan in sy
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SummariesSA. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R120,00. You're not tied to anything after your purchase.
