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10 November, 21:03

Which of the following equations represents a double-displacement reaction?

A. FeS (s) + 2HCl (aq) ® H2S (g) + FeCl2 (aq)

B. 2Sb (s) + 3I2 (g) ® 2SbI3 (s)

C. Zn (s) + H2SO4 (aq) ® ZnSO4 (aq) + H2 (g)

D. 2HgO (s) ® 2Hg (l) + O2 (g)

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  1. 10 November, 22:13
    0
    The answer is C. Zn (s) + H2SO4 (aq) ZnSO4 (aq) + H2 (g)
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