Question

What information does the following chemical​ equation convey? a)Zn + H2SO4 -> ZnSO4 + H2 b) Mg + 2Hl -> MgCl2 + H2

Answer 1

a) Zn + H2SO4 → ZnSO4 + H2.... There is a theorem that the More reactive metal will replace the less reactive metal from its salt... Here Zn removed H2 from H2SO4 to form ZnSO4... So Zn is more reactive than H2...

b) Mg + 2HCl → MgCl2 + H2     Similarly, Mg is more reactive than H2...

The information conveyed by these chemicals are that Hydrogen is least reactive than Zn and Mg...

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