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give the four metals that is very active with water or acids ​

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QUESTION:

give the four metals that is very active with water or acids

ANSWER:

Reactions of metals with water

  • Reactions of metals with water
  • When a metal reacts with water, a metal hydroxide and hydrogen are formed. For example, sodium reacts rapidly with cold water:
  • sodium + water → sodium hydroxide + hydrogen

  • 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)

  • In general, the more reactive the metal, the more rapid the reaction is. Aluminium is unusual because it is a reactive metal that does not react with water. Its surface naturally forms a very thin layer of aluminium oxide that keeps water away from the metal below

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