Kouger8881 Kouger8881
  • 20-02-2024
  • Chemistry
contestada

Equal masses of iron (Fe) and sulphur (S) are heated together to form FeS. What fraction of the original mass of excess reactant is left unreacted? (Atomic mass of Fe=56, S=32)
a. 1/4
b. 1/3
c. 1/2
d. 2/3

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