Wednesday, 30 March 2016

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

Acid + metal ---> salt + hydrogen
Magnesium

- Reacts vigorously with cold dilute acids
- Produces lots of bubbles
Aluminium

 - Little reaction with cold dilute acids (as it has a protective aluminium oxide layer)
- Reacts vigorously with warm dilute acids and produces lots of bubbles


Zinc

 - React slowly with dilute acids but more strongly if you heat them up
Iron

 Same reactions as zinc.

NOTE: The more reactive the metal, the faster the reaction. For example, very creative metals (such as sodium) will react explosively, as the reaction is very quick. The speed of reaction is given off by the amount of bubbles that are given off.
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2 comments:

  1. alfachemistry14 August 2018 at 07:39

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  2. Insan Faroka31 March 2020 at 06:05

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