Why is seawater a mixture

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.