【】What is the carbonate formula?

The formula for carbonate is CO₃2- .
The charge of carbonate polyatomic ion is -2.


Explanation:


Today I will show you the formula for carbonate in this blog post.
Carbonate is a polyatomic ion.It has -2 charge.In carbonate,we get one carbon and three oxygens.

 So the formula for carbonate is CO₃2-

formula for carbonate

Formula for Carbonate




In carbonate ion,the oxidation number of carbon  is +4 and the oxidation number of O is -2.The net  charge of carbonate is -2.


In carbonate,one oxygen is bonded to carbon with double bond and two other oxygens are bonded to carbon with single bond.So Structural formula for carbonate is given below:
Structural formula for carbonate
Structural formula for Carbonate ion


Structural formula for carbonate

By using carbonate anion formula CO₃2-

,we get the formula for the following compounds.:

 1)Ferric carbonate formula


               Fe₂(CO₃)₃


2)Carbonic acid formula

                   H₂CO₃
3)Zinc carbonate formula

                 ZnCO₃
4)Lead carbonate formula

         PbCO₃

5)Sodium carbonate formula

       Na₂CO₃

6)Calcium carbonate formula


      CaCO₃
7)Aluminum carbonate formula

      Al₂(CO₃)₃
8)Nickel carbonate formula
      NiCO₃
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