Completar Frases organic chemistryVersión en línea Organic chemistry por Pilar Maldonado Manso 1 carbon structure compounds alkynes types similar alkanes Organic group rings oxygen sulfur hydrocarbons chains nitrogen alkenes hydrogen properties Hydrocarbons functional chemistry is the study of compounds that contain the element . Organic chemists study the properties , , and chemical reactions of organic . Most organic molecules are made up of long or of carbon atoms with atoms of other elements such as or attached . There are a number of of organic compounds . Scientists divide these up into groups based on the type of element common to the in addition to carbon . These groups have similar because they have molecules . form a functional group of organic compounds that are composed of only hydrogen and carbon atoms . Within the group of are other groups such as , and . Other elements that carbon combines with to form organic compounds include oxygen , , , phosphorus , and boron .