WorksheetsKemi prøve
Total questions: 19
Worksheet time: 18mins
Tegn den funktionelle gruppe keton
Tegn den funktionelle gruppe keton
Hvad er trivialnavnet for eddikesyre?
ethansyre
methansyre
propansyre
butansyre
Hvad er trivialnavnet for eddikesyre?
ethansyre
methansyre
propansyre
butansyre
The bond between ice molecules is
ionic
covalent
a hydrogen
metallic
The atom with the largest atomic radius in Group 8A is -
Ar
He
Kr
Rn
N or C?
How does oxygen become an oxide ion?
it loses 2 electrons
it gains 2 electrons
it shares electrons
it releases energy
How many valence electrons does Carbon have?
4
5
6
8
Hvad er trivialnavnet for ethansyre?
eddike
saltsyre
svovlsyre
smørsyre
Hvad er trivialnavnet for ethansyre?
eddike
saltsyre
svovlsyre
smørsyre
pH-værdien, når en base fortyndes
Stiger
Falder
Forbliver den samme
Bliver sur
In a coffee machine the ground coffee is separated from the coffee solution by using
(a)
When different gases are mixed together to form air there is
Chemical Reaction
Decomposition
No Physical Reaction
No Chemical Reaction
A technique which is used to desalinate water is
distilation
filtration
heating
reverse osmosis
Hvis man tilsætte salt til syre
Får man saltsyre
Bliver syren neutral
Bliver syreren basisk
Ingen af de andre svar er korrekte
Forklar en hydrogenbinding
EN for carbon er (a) end for hydrogen
Hvad hedder carbon på dansk?
(a)
