Les réactions chimiques

•
–
– 
–
–!"
–

#
•#$
•%&'()&
')
•'()⟶')
 *+%"(%⟶%"

•$
•,-')
'()$
')⟶'()
*+%.%/⟶%.%(/%
#

#
•'$
•0-$
 '()⟶)('
 '()⟶()'
•1 ou1$
•*+
(%'2"/3⟶%'2("/3%