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  • Why does liquid water form when we exhale on a mirror?
    In the descriptions below, I always assume external pressure to be constant at 1 atm, the condition where daily observations are made 1) When I exhale on a mirror, liquid water forms on the mirror
  • Why is a C4 ring impossible? - Chemistry Stack Exchange
    A four C ring does exist in many compounds, but it is not possible for double bonds Cumulated double bonds $\ce {C=C=C}$ must be linear, in 1 line They can be bent a little, but it would cause the strain in the bonds, causing instability They definitely cannot be bent in right angles The right angle geometry excludes possibility of overlap of orbitals to form such double bonds
  • Why does my sea salt have a best by date? [duplicate]
    @Farooq: As the link in this answer shows, culinary “sea salt” certainly can contain anti-caking agents And as the answer explains, the (potential very slight) deterioration that justifies the “best before” date is not caused by the anti-caking agent, but inhibitied by it Best before dates are never meant to be interpreted as “product expires now — discard it”, but just as
  • everyday chemistry - Sugar solutions have a neutral pH in themselves . . .
    I'm not an expert, but as far as I understood a sugar solution is completely neutral since sugar can't take hydrogen ions out of the water or donate them in Sugar is a non ionic compound, so it do




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