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Samenvatting scheikunde - CHEMIE overal 3 havo $5.97
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Samenvatting scheikunde - CHEMIE overal 3 havo

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Versimpelde samenvatting van bijna alle hoofdstukken van het scheikunde boek: Chemie overal havo 3.

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  • H1 h2 h3 h6
  • December 29, 2024
  • 8
  • 2023/2024
  • Summary
  • Secondary school
  • 3
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SK | Samenvatting H1 – H6


H1
1.1 stofeigenschappen
Scheikunde = stoffen
Mengsel = 2 of meer stoffen bijv. zeewater en melk
Zuivere stof = een stof bijv. suiker
Stof verandert in een andere stof = chemische reactie


Elke stof heeft unieke eigenschappen = stofeigenschappen
Bijv smelt en kookpunt
Smeltpunt = 0 graden bij water
Kookpunt = 100 graden bij water


Massa, volume = geen stofeigenschap
Dichtheid = combi van massa en volume  dichtheid is wel stofeigenschap
(bepalen waar de stof van gemaakt is)
Dichtheid = massa : volume in g/ml of kg/m3


1.2 Veiligheid
Stoffen kunnen gevaarlijk zijn  gevarenpictogrammen
H zinnen = gezondheidsgevaren
P zinnen = voorkomen van ongelukken




1.3 Faseveranderingen

, Fasen = vast, vloeibaar en gas
S, L en G




Zuivere stof  smeltpunt/kookpunt
Mengsel  smelttraject/kooktraject
C + 273 = K
K – 273 = C


1.4 Soorten mengsels en PH
Oplossing = mengsel van s, l, g in een vloeistof  helder, kleurloos of gekleurt
Suspensie = troebel, kan er niet doorheen kijken
Emulsie = troebel mengsel van 2 vloeistoffen  Emulgator is een extra stof die
ervoor zorgt dat het niet ontmengt.
Oplossingen kunnen zuur, neutraal of basisch zijn
Zure oplossingen geldt: PH < 7
Basische oplossingen geldt: PH > 7
Neutrale oplossingen geldt: PH = 7
Je meet de PH met PH papier




H2 Bouwstenen van stoffen
2.1 Macro en Micro
Macro = kun je waarnemen met je zintuigen

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