This is a double replacement reaction which means that is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.
Double replacement reaction could look like this:
[tex]AB+CD\to AD+BC[/tex]The two ions for FeSO4 are Fe (2+) and SO4 (2-) and for Pb(NO3)2 is Pb (2+) and NO3 (1-), we're going to 'exchange' the negative ions for the positive ions, obtaining that the equation is:
[tex]FeSO_4+Pb(NO_3)_2\to Fe(NO_3)_2+PbSO_4\text{.}[/tex]You can realize that we have the same number of each element for both sides. So the chemical equation above would be our balanced chemical equation.
