Examlex
Which of the following database structures offers a flexible way of representing objects and their relationships?
Carbon Atoms
The basic building blocks of organic molecules, characterized by having four bonds, either to other carbon atoms or different elements.
Alkene
Hydrocarbons that contain at least one carbon-to-carbon double bond, characterized by the formula CnH2n.
Alkyne
A hydrocarbon with at least one carbon-carbon triple bond, characterized by the general formula CnH2n-2.
Hydrogen
The lightest and most abundant chemical element in the universe, symbol H.
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