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Question

Write word equations and then balanced equations for the reaction taking place when (b) Dilute hydrochloric acid reacts with magnesium ribbon.


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Solution

Reaction of metal with acid:

  • When a metal reacts with the acid, it produces a metallic salt and hydrogen gas is liberated.
  • The general chemical reaction can be depicted as:

Metal+AcidMetallicsalt+Hydrogen

Reaction of Magnesium with hydrochloric acid:

  • When hydrochloric acidHCl reacts with magnesium ribbonMg, it produces magnesium chlorideMgCl2 salt and hydrogen gasH2 is liberated.
  • The word equation can be depicted as:

Magnesium+HydrochloricacidMagnesiumchloride+Hydrogen

  • The chemical reaction can be depicted as:

Mg(s)+2HCl(aq)MgCl2(aq)+H2(g)


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