What is a characteristic of straight chained alkanes? ●They have one or more rings of carbon atoms.
●They have carbon atoms that are double-bonded to other carbon atoms. ● They have more than two carbons that are bonded to only one other carbon. ●They have carbons bonded in a single row from one end of the molecule to the other end of the molecule.

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.