Answer:
Pb(NO3)2 + 2NaCl = PbCl2 + 2NaNO3
Step-by-step explanation:
Lead nitrate is Pb(NO3)2
Sodium Chloride is NaCl
The basic reaction is:
Pb(NO3)2 + NaCl = PbCl2 + NaNO3
Now we need to balance the equation. Note that the lead nitrate contributes 2 (NO3) units, but there is only 1 NO3 on the product side. So start by adding a second NaNO3:
Pb(NO3)2 + NaCl = PbCl2 + 2NaNO3
Now we have 2 Na atoms on the right side, so add a "2" to the NaCl:
Pb(NO3)2 + 2NaCl = PbCl2 + 2NaNO3
This is starting to look good. Lets check the atom/unit counts on both sides of the equation:
Reactants Products
Pb 1 1
NO3 2 2
Na 2 2
Cl 2 2
The equation is now balanced. Pb(NO3)2 + 2NaCl = PbCl2 + 2NaNO3