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QUESTION

# cobalt (II) sulfate reacts with lead (II) nitrate farming cobalt (II) nitrate and lead (II) sulfate

"CoSO"_4+"Pb(NO"_3)_2->"Co(NO"_3)_2+"PbSO"_4

Reactants: 1. Cobalt (II) => An ion of Cobalt, Co having valency of 2+ =>"Co"^(2+) and Sulfate =>"SO"_4^(2-) ion Combining both the chemical formula of first reactant is "CoSO"_4 2. Similarly Lead (II) =>"Pb"^(2+) and Nitrate =>"NO"_3^- ion Observe that each ion of Lead will require two ions of nitrate to satisfy (quench) its valency. Therefore, combining both we obtain chemical formula of second reactant as "Pb(NO"_3)_2

Products: Following the same logic as used for reactants 1. Cobalt (II) Nitrate has chemical formula as "Co(NO"_3)_2 and 2. Lead (II) Sulfate has chemical formula as "PbSO"_4

Writing the chemical equation of the reaction Reactants -> Products

"CoSO"_4+"Pb(NO"_3)_2->"Co(NO"_3)_2+"PbSO"_4 Inspection reveals that the equation is already balanced.