Saturday 18 May 2013

2.25 describe the reactions of dilute hydrochloric and dilute sulfuric acids with magnesium, aluminium, zinc and iron

Magnesium- 

  • bubbles of gas
  • magnesium disappears
  • reaction mixture gets hot
  • colourless solution is formed
Aluminium
  • slow to start reacting when cold, but bubbles form when heated
  • aluminum disappears
  • colourless solution formed
Zinc
  • bubbles of gas
  • zinc disappears
  • colourless solution formed
Iron
  • bubbles of gas
  • iron disappears
  • pale green solution formed
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3 comments:

  1. seema5 January 2017 at 03:39


    Thanks for sharing this great info with us.

    CIE Cambridge Education Program




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  2. Unknown11 June 2017 at 04:34

    The metals do not disappear as what goes into a reaction must come out. The metal will dissolve e.g. Zinc + hydrochloric acid = zinc hydroxide + hydrogen. Zinc here is dissolved in the colourless solution

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  3. Unknown7 July 2018 at 08:20

    So good

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