Check all correct statements concerning pentyne. contains 3 carbons contains 5 carbons contains 7 carbons has only single bonds has a double bond has a triple bond is an alkyne is an alkene is an alkane which statement is not true of alkenes? they are unsaturated. they are reactive. they have double bonds. they are more stable than alkanes. butene would have 4 carbon atoms and a bond. single triple double which type of reaction to alkenes generally undergo? substitution displacement redox addition if the carbon atom of hydrocarbon is bonded to less than 4 other atoms, the hydrocarbon is considered aromatic diluted saturated unsaturated which of the following apply to unsaturated hydrocarbons? select all that apply. they do not have isomers. they are more stable than saturated hydrocarbons. they will react readily with other elements and compounds. they have double and triple bonds. they only have single bonds. a straight chain hydrocarbon with the formula c5h10: has a triple c-c bond has a double c-c bond is essentially inert is unstable and extremely reactive what is the general formula for alkenes? cnh2n+2 cnh2n cnh2n+1 ch2n+2 choose the statements about benzene that are correct. all benzene hydrocarbons are cnhn+2 all c-c bonds share 2 pairs of electrons. three c-c bonds share 2 pairs of electrons. all of the c-c bonds are actually identical. the structure of the molecule is closed like a ring structure. the last one is attached as a pic.