3.1.2 reaction mechanisms
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6 Terms
what do mechanisms show?
they show the reactions of organic compounds
what does a double headed curly arrow indicate in mechanisms?
shows the movement of a pair of electrons
shows bond making and bond breaking
where should a double headed curly arrow start?
the arrow starts where the electrons come from, e.g.
from a covalent bond (the bond is broken)
from a lone pair (a bond will be formed)
where should a double headed curly arrow point to?
the arrow points to where the electrons are going, e.g.
to another atom to become an extra lone pair
to form a bond between two atoms
to a single bond to form a double bond
how can a negative ion become neutral?
by losing electrons
how can a positive ion become neutral?
by gaining electrons