Organic Groups Flashcards
What are saturated hydrocarbons?
Alkanes (formed from only hydrogen & carbon with just single bonds)
Are alkanes saturated or unsaturated hydrocarbons?
Alkanes are saturated hydrocarbons
What’s the general formula for alkanes with no ring?
Cn H2n+2
What type of bond do alkenes contain?
Double bond between carbon atoms
What type of bond do alkynes contain?
Triple bond between 2 carbon atoms
What are arenes?
Compounds that contain a benzene ring
What are aliphatic compounds?
Compounds that don’t contain a benzene ring
What are structural isomers?
Molecules with the same molecular formula (same number and type of atoms) but with different structures (atoms connected in a different order) they are different compounds with different properties
What’s the general formula for cycloalkanes
Cn H2n (unless there’s more than 1 ring)
What are small alkane molecules like? ( up to 4C)
Colourless gases
What are medium (5 to 16C) alkanes like?
Colourless liquids
What are large alkanes like?
White waxy solids
Why are alkane molecules non-polar?
C & H have very similar electronegativity values
Why are alkanes good fuels?
They don’t burn until ignited (have very high activation energies) & when they do burn a lot of energy is given out
