They have covalent bonds.
Hydrocarbons have covalent bonds.
Covalent bonds
The ability of each carbon atom to form covalent bonds, including bonds to other carbon atoms. This makes possible chain hydrocarbons of any length.
Saturated hydrocarbons contain only single bonds, such as hexane. Unsaturated hydrocarbons contain either double or triple bonds, such as hexene and hexyne.
No, alcohols are not saturated hydrocarbons. Alcohols contain a hydroxyl (-OH) functional group, which is not present in saturated hydrocarbons. Saturated hydrocarbons consist only of carbon-carbon single bonds and carbon-hydrogen bonds.
Saturated hydrocarbon cannot bond with compounds anymore, where as unsaturated hydrocarbons can bond, as they contain double or triple bonds. When they bond, the double and triple bonds break and new separate single bonds are formed with hydrogens or any other external compounds.
Saturated hydrocarbons have only single bonds between carbon atoms.
Alternating single and double bonds
Hydrocarbons with single bonds lack the required rotation restriction to form geometric isomers. Geometric isomers result from restricted rotation around a double bond, which is not present in hydrocarbons with single bonds. As a result, hydrocarbons with single bonds do not exhibit geometric isomerism.
In hydrocarbons, stability is primarily influenced by the type of bonding present. Covalent carbon-hydrogen bonds contribute to the overall stability of hydrocarbons. The presence of double or triple bonds can affect the reactivity and stability of hydrocarbons.
These are called saturated hydrocarbons.
Most unsaturated hydrocarbons contain double or triple bonds between carbon atoms, which are structural features that distinguish them from saturated hydrocarbons. Saturated hydrocarbons, on the other hand, only contain single bonds and are fully "saturated" with hydrogen atoms. The presence of these multiple bonds in unsaturated hydrocarbons allows for different reactivity and bonding characteristics compared to their saturated counterparts.