Describe the amount (g, moles) of the carbonate complex and the volume and moles of hcl that were used in the first step of the reaction and any observations. give a balanced chemical equation for the reaction occurring at this step. name the new complex ion formed (consistent with iupac standards) and sketch its structure. there are two geometrical isomers possible for this complex, include both in your sketch. which one do you think is more likely to be present in this case? why?