Alkenes Flashcards
(7 cards)
0
Q
Combustion of ethene symbol equation
A
C2H4+4O2—->2CO2+2H2O
1
Q
What state of matter are the alkenes ethene and propene in at room temperature?
A
Gas
2
Q
Alkenes are used as ________ rather than as fuels
A
Polymers
3
Q
Explain and draw a diagram to show how bromine water can be used to test for the presence of an alkene or alkane
A
Bromine reacts with the double bond of an alkene, but not an alkane. Alkenes turn bromine water from brown to colourless.
4
Q
Complete combustion of ethene
A
C2H4+4O2—-> 2CO2+2H2O
5
Q
Incomplete combustion of ethene
A
C2H4+4O2—->2CO+2H2O
6
Q
Ethene+_______= ethanol
A
Water
