Alkenes (Edexcel GCSE Chemistry Combined Science): Flashcards
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Practise the cards
13 cards from this deck
Atoms in hydrocarbons
Atoms in hydrocarbons
Carbon and hydrogen only
Type of bond in alkenes
Type of bond in alkenes
At least one double bond between carbon atoms
Alkenes: saturated or unsaturated?
Alkenes: saturated or unsaturated?
Unsaturated
Reactivity of alkenes vs alkanes
Reactivity of alkenes vs alkanes
Alkenes are more reactive
General formula for alkenes
General formula for alkenes
Simplest alkene
Simplest alkene
Ethene ()
Formula of propene
Formula of propene
Formula of butene
Formula of butene
Why alkenes are more reactive
Why alkenes are more reactive
The double bond is weaker and can easily break
Reactions where double bond breaks & atoms add
Reactions where double bond breaks & atoms add
Addition reactions
Colour of bromine water before reacting
Colour of bromine water before reacting
Orange
Bromine water colour after reacting with alkene
Bromine water colour after reacting with alkene
Colourless
Test for presence of alkenes
Test for presence of alkenes
Bromine water turns from orange to colourless