3. Chemical Reactions
Balancing Chemical Equations
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ANSWERS OPTIONS
A
Fe2S3(s) + H2(g) → Fe(s) + H2S(g)
B
Fe2S3(s) + 3 H2(g) → 2 Fe(s) + 3 H2S(g)
C
Fe2S3(s) + 2 H2(g) → Fe(s) + 2 H2S(g)
D
3 Fe2S3(s) + H2(g) → 6 Fe(s) + H2S(g)
The reaction of solid iron(III) sulfide and hydrogen gas produces solid iron and gaseous hydrogen sulfide. Write the balanced reaction equation.