Balancing chemical equation refers to balancing the stoichiometric coefficients ~ above the reactants and products side. This should be done together the chemical equation obeys the regulation of conservation of mass and momentum.

You are watching: Lead(ii) nitrate and potassium iodide

Reaction in between lead nitrate and also potassium iodide

The reaction between lead nitrate and potassium iodide is an example of a precipitation reaction.

Pb(NO3)2 + 2KI + PbI2 + 2KNO3

Steps to balance chemical equation

Following room the easy actions to balance the equation:

Step 1: write the Unbalanced chemistry Equation

Let us think about an unbalanced equation

Pb(NO3)2 + KI → PbI2 + KNO3

Step 2: write Down number of Atoms

Write down the variety of atoms the each element present on both reactant and product side


AtomReactant sideProduct side
Pb11
I12
N21
O63

Step 3: add Coefficients to Balance the mass in a chemical Equation

Note that the coefficients that are to be added must it is in a entirety number and one coefficient added applies to every the atoms current in that one certain molecule.

For example: (NO3)2 indicates 2 hydrogen atoms and 6 oxygen atoms.

First try to balance the single element o atom and then move n come hydrogen and oxygen.

So right here we will very first balance lead, nitrogen and oxygen. Walk by trial and error method.

Adding 2 iodine-on both sides provides iodine balanced. Then will relocate to nitrogen and also then oxygen. On including 2 KI and balancing with reactant side makes the equation balanced.

The very same trial and error procedure is now adhered to to balance oxygen 3 O2 then we have actually 6 oxygen atom on the reactant next and likewise 6 oxygen atom on the product side.

See more: Voluntary Recall Of Nvidia Shield Tablet Battery Replacement

Hence The balanced chemical equation is: Pb(NO3)2 + 2KI → PbI2 + 2KNO3

Answer

The reaction between lead nitrate and potassium iodide is

Pb(NO3)2 + 2KI → PbI2 + 2KNO3


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