chemistry/stoichiometry/balancing/ How to BalancePbCl2 + K2SO4 = PbSO4 + KCl

How to Balance Lead (II) chloride + Potassium sulfate → Lead (II) sulfate + Potassium chloride

How to Balance: PbCl2 + K2SO4 → PbSO4 + KCl

Type of Chemical Reaction: This is a double replacement reaction.

Word Equation: Lead (II) chloride + Potassium sulfate → Lead (II) sulfate + Potassium chloride

Balancing Strategies: In this double replacement reaction we have PbCl2 and K2SO4 reacting to form PbSO4 and KCl. Essentially the Pb and K atoms are switching places.
For a complete explanation, watch:

About Balancing Chemical Equations

When balancing chemical equations our goal is to have the same number of each type of atom on both sides of the equation.

Only change the coefficients (these are the numbers in front substances).
Coefficients are the numbers in front of the molecule.
Never change the subscripts (the small numbers after elements).
Coefficients are the numbers in front of the molecule.

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