chemistry comic

chemistry comic

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  • Soil contamination has been a quite serious environmental problem for years! How can the Government solve it?
  • To detoxify contaminated land, sometimes chemical remediations are adopted.
  • I got it! Chemical reactions are used to convert a contaminant into a safe form!
  • However, harmful chemicals are often used, such as a strong base.
  • Metal Ions(aq) + NaOH(aq) -> Metal Hydroxides (s)
  • In the process, double replacement reaction (precipitation) is used, forming insoluble compounds with the metal ions.
  • Then the precipitate will make the river water cloudy and turbid! The water might be too impure to drink...
  • Moreover, the heat produced in the reaction will cause side effects on the environment!
  • Most importantly, the reactant used is corrosive, nearby living things will be harmed! The pH value of soil and water will also be increased, destroying the habitats of animals!
  • As a result, when it comes to contaminated land detoxification, chemical remediation must be carried out carefully and the products have to be collected properly. Otherwise, there will be more undesirable effects on the surroundings!
  • To conclude, Chemical Remediation could be a short term solution for Land Contamination, ones should execute the treatment precisely, such that the adverse effects can be minimized!
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