C9 Flashcards
1
Q
what is crude oil
A
a mixture of compounds, a fossil fuel containing ancient biomass
finite resource
2
Q
what is a hydrocarbon
A
a compound made up of hydrogen and carbon atoms ONLY
3
Q
what are alkenes
A
saturated hydrocarbons of a general formula Cn H2n+2
4
Q
what is a homologous series
A
series of compounds with the same general formula, same functional groups and similar chemical properties
5
Q
describe the combustion of hydrocarbons
A
- exothermic reaction occurring when hydrocarbons are reacted with oxygen
- complete combustion produces carbon dioxide and water
- incomplete combustion produces carbon or carbon monoxide and water
6
Q
describe physical properties of alkanes
A
- first few in series are gases, then change to liquids then to solids
- in general, boiling points and viscosity increase as molecules get bigger
- poor reactivity
