The classified form of the following reaction should looke like that :

. WHat about the name of such reaction, I am pretty sure that it is called <span>decomposition. I bet you have the same in the option list, but next time check it carefully.</span>
A structural formula for an organic compound that depicts each valence bond as a short line especially : the hexagonal ring formula for benzene
<span>Magnetism is a force which attract or repel a magnetic object like iron.
Magnetism is not a major characteristic used to identify minerals, because, every mineral do not have magnetic properties in it. Only few minerals like Iron-nickel have it and thus, it is not possible to identify a mineral using magnetism.</span>