That's cool man, you should study more... wheres the question though?
<span>The ends of a bar magnet are called POLES</span>
The last one. A bond of two or more of the same element.
The structure is in attachment.
Hexane is alkane (acyclic saturated hydrocarbon, carbon-carbon bonds<span> are </span>single) <span>of six </span>carbon atoms. Methoxy<span> group is the functional group consisting of a methyl group bound to oxygen. Iodo is substituent consists of ionide (element in 17 periodic group).</span>