Balanced Chemical Equation – Solution
2FESO4 + Pb(NO3)2 → 2FENO3 + Pb(SO4)2
The coefficients show the number of particles (atoms or molecules), and the indices show the number of atoms that make up the molecule. New substances are formed as a result of the rearrangement of the original atoms. As a result of a chemical reaction, atoms of chemical elements do not disappear anywhere and new ones do not appear, their number remains unchanged – this follows from the law of conservation of mass of substances.
Double Displacement (Metathesis)
Substances that react are called starting materials or reactants. The substances that form as a result are called reaction products.
Pb(NO3)2 – Lead(II) nitrate
- Other names: Lead nitrate.
- Appearance: White colourless crystals.
|FESO4 + Pb(NO3)2 = FE(NO3)2 + Pb(SO4)|
|NI + KClO4 + H2O + KCl = NICl2 + KClO3 + KOH|
|CUS + O2 = CUO + SO2|
|PbSO4 + NH3 = Pb + N2 + H2SO4|
|KMnO4 + KAsO2 + NaOH = MnO2 + H2O + K3AsO4 + AsNa3O4|
|CuOH + KSO4 = CuOH + KSO4|