chemistry/stoichiometry/balancing/ How to BalanceFeS + HCl = FeCl2 + H2S

How to Balance Iron (II) sulfide + Hydrochloric acid → Iron (II) chloride + Hydrogen sulfide

How to Balance: FeS + HCl → FeCl2 + H2S

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

Word Equation: Iron (II) sulfide + Hydrochloric acid → Iron (II) chloride + Hydrogen sulfide

Balancing Strategies: In this double displacement reaction the Fe and H atoms are switching places. In order to balance the reaction, count the atoms on each side of the equation.
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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