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Adjust the stoichiometry of chemical equations

 

    Attention, even the coefficient 1 must be written.

 

In this page, the character l is L small letter (and never i capital letter which would spell I)
Al is thus the symbol of the aluminum and Cl that of the chlorine
and I that of the iodine.

1)
Al + H+  Al 3+ + H2
2)
Fe2+  + HO - Fe(OH)2
3)
I2   + S2O32 - I - + S4O62 -
4)
Zn(OH)2 + HO - ZnO22 - + H2O
5)
Fe3+  + HO - Fe(OH)3

6)
Cu + Ag+ Cu2+ + Ag
7)
H3PO4 + HO - PO43 - + H2O
8)
Ag+   + NH3 Ag(NH3)2+
9)
Ag+   + CN - Ag(CN)2-
10)

Difficult

C2H6O  + MnO4- H+ C2H4O2 + Mn2+  + H2O

11)

Difficult

Cu  + NO3- H+ Cu2+ + NO  + H2O

 

 

 

 

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