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Index
 »Â
National 5: Chemistry
 »Â
Nature's Chemistry
 »Â
General
level: General
Questions and Answers List
level questions: General
Question
Answer
How many bonds can carbon form?
4
How many bonds can hydrogen form?
1
What is a hydrocarbon
A compound made from hydrogen and carbon only
If the carbon atoms in a hydrocarbon are joined by single covalent bonds only, what are they called?
Saturated hydrocarbons
What will the name of saturated hydrocarbons always end in?
-ane
If any of the carbon atoms in a hydrocarbon are joined by a double covalent bond, what are they called?
unsaturated hydrocarbons
What do the name of unsaturated hydrocarbons always end in?
-ene
What does the first part of the name of a hydrocarbon tell you?
The number of carbon atoms joined together in a straight chain
meth-
1
Eth-
2
Prop-
3
But-
4
Pent-
5
Hex-
6
Hept-
7
Oct-
8
What is a homologous series?
A family of compounds with similar chemical properties who share the same general formula
Describe a full structural formula (of a hydrocarbon)
shows all the atoms and all the bonds in a molecule
Describe a shortened structural formula?
Shows the number of hydrogen atoms attached to each carbon atom (in order). The bonds between the carbon atoms may or may not be shown
Describe a molecular formula
Shows the type and total number of each atom only