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Samenvatting Antwoorden H4 Afsluiting 4 HAVO scheikunde chemie overal

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Antwoorden H4 Afsluiting 4 HAVO scheikunde chemie overal

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Uploaded on
June 16, 2022
Number of pages
4
Written in
2021/2022
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AfsLuiting


E
a Vanderwaalsbindingen worden verbroken,
b Vanderwaalsbindingen en waterstofbruggen tussen alcoholmoleculen en
vanderwaalsbindingen en waterstofbruggen tussen watermoleculen worden verbroken en
nieuwe vanderwaalsbindingen en waterstofbruggen tussen alcohol- en watermoleculen
worden gevormd,
c Vanderwaalsbindingen worden verbroken.
d Er worden geen ionbindingen verbroken. De bindingen zijn alleen iets minder sterk in de
vloeibare fase,
e Vanderwaalsbindingen tussen joodmoleculen en vanderwaalsbindingen tussen
hexaanmoleculen worden verbroken en nieuwe vanderwaalsbindingen tussen jood- en
hexaanmoleculen worden gevormd.
f Bij ammoniak worden geen bindingen verbroken want, ammoniak is een gas. Bij
water worden vanderwaalsbindingen en waterstofbruggen verbroken en nieuwe
vanderwaalsbindingen en waterstofbruggen tussen ammoniakmoleculen en
watermoleculen worden gevormd.
g Bij de ontleding van HrO, worden atoombindingen verbroken en nieuwe atoombindingen
gevormd.
h Hier worden geen bindingen verbroken of gevormd,


EO
a Hydrazine (l), dichloormethaan (l), ethaan-l,2-diol (l), methanal (g)
b Hydrazine en ethaan-l,2-diol zijn in staat om waterstofbruggen te vormen. Ziefrguur 4.I2
en 4.13.
\ i
H
/H I .'
l-.1

\
i -\
H--*-N'-*
H

4.12


H H H H

o o-c I




H H í,1 H
H,,
o
ii
H
4.13


E
a I2,0I + 2 x 16,00 = 44,01 u
b De molaire massa van koolstofdioxide is 44,01 g mol-l
1,4.106 kg = 1,4.10e g
1;119t
Dit komt overeen ro = 3,2.107 mot cor.
44,0r




56 | Hoofdstuk 4 @ Noordhoff Uitgevers bv
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