Zusammenfassung der Ressource
Natural Chemistry
- Alkanes
- Saturated hydrocarbons
- Only one single covalent bond
- C(n)H(2n+1)
- Most hydrocarbons in crude oil are alkanes
- Give out large amounts of
energy when burnt
- The bigger the molecule, the
higher the boiling/melting point
- And so the less flammable
they become
- Very flammable
- The bonds between carbon and
hydrogen atoms don't break
- Empirical formula
- Worked Example
Anmerkungen:
- Benzene has the molecular formula of C6H6, what is its empirical formula?
The ratio of carbon to hydrogen is 1:1, so the empirical formula would be CH.
- Good for
representing ionic
compounds
- Alkenes
- C2H2
- Unsaturated hydrocarbons
- The molecules have
double covalent bonds
- More reactive than alkanes
- Very flammable
- Burn in combustion reactions to produce
carbon dioxide and water