Question

2.0 g sample of mixture of Sto, and Fe, 0,, on very strong heating leaves a residue weighing 196 g. The reaction
responsible for loss of weight is
Fe,0,() - Fe,0,() + 0.9)
What is the percentage by mass of S10, in original sample?
40%
D) 60%
20​

Answer 1

Explanation:

40 percent.......

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