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  • 2 May 2024
    John Oberthier
    S2.4 From models to materials
    Richard,Interesting points in the Pause for Thought.  The lead chloride examples are particularly interesting.  I do find the Triangle most useful for compounds involving Fluorine. If you use the delta EN> 1.8 rule, then students...
  •  Thank you for the detailed explanation and for giving your time,
  • hello Geoff. I just want to ask you. Do particles stop moving at absolute zero? Because we are having a dialogue with physics teachers about it. They are saying that particles sill have motion and kinetic energy. 
  • Hello Fulya,Ethanal (acetaldehyde) gives two signals (with an integration trace of 3:1) in its low-resolution 1H NMR spectrum as it contains protons in two different chemical environments. The splitting of these two signals will be shown in...