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NASK h3 beknopte samenvatting theorie
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korte samenvatting van NASK (vwo) van hoofdstuk 3. Bestaande uit alle paragrafen. inclusief plaatjes.
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H3 Natuurkunde samenvatting3.1 Lucht: een mengsel van gassen
Lucht bestaat uit:
Stikstof (78%)
(N2) ons lichaam heeft dit
niet nodig we ademen het
uit, zonder dat er iets mee
gebeurd in je longen
Zuurstof (21%)
(O2) mensen en dieren
hebben dit nodig om te leven, we ademen dit in
Overige (1%)
0,03% bestaat uit koolstofdioxide (CO2) dit gas ademen
de planten in
, Je hebt zuurstof nodig om brandstof te verbranden. Je
steekt gas en lucht aan om de
ontbrandingstemperatuur te bereiken: de temperatuur
waarbij gas begint te branden. Bij de verbranding
ontstaan er hete verbrandingsgassen: waterdamp en
koolstofdioxide.
Met kalkwater kun je laten zien dat er bij de
verbranding koolstofdioxide vrijkomt. Kalkwater is
helder maar als je er koolstofdioxide door heen laat
bubbelen wordt het
troebel. Kalkwater is
een indicator.
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