Summary
No description yet. This curated deck is ready for daily study.
Card preview (12)
What is polymerisation?
Double bonds break into lots of monomers These join together to make long chain polymers
Which reaction releases energy from fuel?
Combustion
What is hydrogenation (hardening) ?
Hydrogen is added at 60 degrees Using a nickel catalyst Double bonds are broken
Why do we want to harden liquids?
Increase the melting point to make a liquid a solid
What are two methods of extracting plant oils?
Crushing Steam distillation
How do you test the saturation?
Bromine water
What does unsaturated fat do?
Reduce cholesterol
What does saturated fat do?
Raises cholesterol
What are the layers of the earth?
Inner core (solid + iron) Outer core Mantle (thickest layer -radioactive decay) Crust (thinnest layer)
What are transition elements?
Metals with incomplete penultimate shells Less reactive than groups 1 and 2 Act as catalysts
What is hydration?
Reaction with water (steam) to produce ethanol
What is catalytic cracking?
A long alkane is vaporised and passed over a heated catalyst. Temperature around 500 degrees Low pressure