DEFINITION of 'Hedge'. Making an investment to reduce the risk of adverse price movements in an asset. Normally, a hedge consists of taking an offsetting position in a related security, such as a futures contract.aking an investment to reduce the risk of adverse price movements in an asset. Normally, a hedge consists of taking an offsetting position in a related security, such as a futures contract.
Ethene, C2H4, is an example of an unsaturated hydrocarbon. Other examples of unsaturated compounds are benzene, C6H6, and acetic acid, C2H4O2. All bond angles about the carbon-carbon double bond are 120o. All atoms bonded to the double bonded carbon atoms lie in the same plane.n unsaturated hydrocarbon is a hydrocarbon containing at least one double or triple bond. An alkene is a hydrocarbon containing double bonds. The general formula of an alkene is CnH2n. An alkyne is a hydrocarbon containing triple bonds. The general formula of an alkyne is CnH2n-2.
Alkenes. Alkenes are unsaturated hydrocarbons that have one or more carbon-carbon double bond, with a general structure of (R-C=C-R'), where R and R' are hydrocarbon groups attached to either side of the carbon atoms.ydrocarbons are compounds that only consist of the elements hydrogen and carbon. In this lesson, we will focus on one type of hydrocarbon: unsaturated hydrocarbons, and its three types-alkenes, alkynes and aromatic hydrocarbons.