•
reactants
products
•
lhs
rhs
•
may indicate physical state by (s), (g), (l),
(aq)-aqueous solution
•
Remember that H
2
,N
2
,O
2
,F
2
,Cl
2
,Br
2
,I
2
occur
as diatomics in nature and are used as
diatomics in chemical eqns