P2 - 7.1 Hydrocarbons Flashcards
Organic Chemistry
What is a hydrocarbon
A compound that contains hydrogen and carbon atoms
How many strong bonds can carbon atoms form
4
Is the prefix is “Meth” how many carbon atoms are there in the molecule
1
Is the prefix is “Eth” how many carbon atoms are there in the molecule
2
Is the prefix is “Prop” how many carbon atoms are there in the molecule
3
Is the prefix is “But” how many carbon atoms are there in the molecule
4
Is the prefix is “Pent” how many carbon atoms are there in the molecule
5
Is the prefix is “Hex” how many carbon atoms are there in the molecule
6
Draw methane
1 carbon atom
4 hydrogen atoms
Draw ethane
2 carbon
6 hydrogen
Draw propane
3 carbon
8 hydrogen
Draw butane
4 carbon
10 hydrogen
What is the general formula we use to work our the number of carbon and hydrogen atoms in alkanes
C(n)H(2n+2)
What is meant by the homologous series
Alkanes all have similar properties and so react in a similar way
Octane is an alkane with 8 carbon atoms. What is its molecular formula?
General formula: C(n)H(2n+2)
Octane = 8
C8H(2x8+2)
C818
True or False: alkanes are saturated compounds
True
What is meant by a saturated compound
- every carbon atom has 4 singular covalent bonds
Do alkanes have singular or double bonds
Singular
What is the difference between an alkene and alkane
Alkanes have singular bonds whereas alkenes have double bonds
What is an isomer
Isomers are molecules that have the same molecular formula, but different structural formulas, this means they are made of the same atoms, but the atoms are arranged differently.
What category does alkanes come under
Organic chemistry
Organic chemistry is about molecules that contain which element?
Carbon
True or False: alkane trains can be very long
True
How many hydrogen atoms are there in an alkane with 5 carbon atoms?
12
