Polyarthralgia, which is joint pain that affects five or more joints, and polyarthritis, which is joint inflammation that affects five or more joints, are the most common joint problems associated with lupus.In fact, more than half of people with lupus already suffer from these problems when they are first diagnosed.bout 95 percent of people with lupus experience arthritis, which is joint inflammation, or arthralgia, which is joint pain.
Ethane, C2H6, is an alkane and is an example of a saturated hydrocarbon. Ethene, C2H4, is an alkene and is an example of unsaturated hydrocarbon. Ethyne, C2H2, is an alkyne and is also an example of unsaturated hydrocarbon. Aromatic compounds are unsaturated hydrocarbons and contain a benzene ring.lkanes are saturated hydrocarbons. Saturated means that the hydrocarbon has only single bonds and that the hydrocarbon contains the maximum number of hydrogen atoms for each carbon atom. Unsaturated hydrocarbons contain multiple bonding and contain less than the maximum number of hydrogens per carbon.
There are four classifications of hydrocarbons; saturated hydrocarbons or alkanes, unsaturated hydrocarbons or alkenes and alkynes, cycloalkanes, and aromatic hydrocarbons or arenes. Alkanes. Alkanes are saturated hydrocarbons which mean they are compounds with a single bond between the atoms.Saturated hydrocarbons are saturated with hydrogen and are the simplest. They are represented in general as CnH2n+2 in case of non-cyclic structures or straight-chain structures.They are also called paraffins.lkanes are saturated hydrocarbons which mean they are compounds with a single bond between the atoms. Saturated hydrocarbons are saturated with hydrogen and are the simplest. They are represented in general as CnH2n+2 in case of non-cyclic structures or straight-chain structures. They are also called paraffins.