How do we represent the reaction of hydrochloric acid with stoichiometric calcium carbonate? Do we need to consider oxidation states?
This is an acid-base reaction, in which no redox transfer occurs........
We can write out the stoichiometric equation:
And the net ionic equation:
And we can include oxidation numbers on reactants and products:
Are these equations balanced with respect to mass and charge? They need to be if we purport to represent chemical reality!
The oxidation numbers of hydrogen and carbon remain at