equation of the reaction of hydrochloric acid and iron sulphide
Start with a word equation
hydrochloric acid + iron sulfide ->
iron chloride and hydrogen sulfide
then convert this to formulae
HCl + FeS -> FeCl2 + H2S
then balance the equation which I will leave you to do.
To determine the equation of the reaction between hydrochloric acid (HCl) and iron sulfide (FeS), we need to consider the valence of the elements and their charges.
First, write the formulas of the individual compounds:
Hydrochloric acid: HCl
Iron sulfide: FeS
Next, consider the valence of each element:
Hydrogen (H) has a valence of +1.
Chlorine (Cl) also has a valence of -1.
Iron (Fe) has a valence of +2.
Sulfur (S) has a valence of -2.
Now we can combine the elements by applying the crisscross method to balance their valences:
Since chlorine has a valence of -1 and iron has a valence of +2, we need two chloride ions (Cl-) to balance the charge of one iron ion (Fe2+).
The balanced equation for the reaction between hydrochloric acid and iron sulfide is:
FeS + 2HCl -> FeCl2 + H2S
In words, iron sulfide reacts with hydrochloric acid to yield iron(II) chloride and hydrogen sulfide.