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1 unproven innocence  Jun 20, 2015 2:10:08pm

With respect to “fact 3)” and “fact 4)” the author’s statements are overly general, to the point of being wrong.

In cases where a molecule is indistinguishable from it’s mirror image, the author’s statements are correct. This tends to be the case for most relatively simple molecules. But for not-so-simple molecules, chirality (handedness) is important, especially in the context of living things. From Wikipedia,

A chiral molecule is a type of molecule that has a non-superposable mirror image. The feature that is most often the cause of chirality in molecules is the presence of an asymmetric carbon atom.[3][4]

The term chiral in general is used to describe an object that is non-superposable on its mirror image.[5]

In chemistry, chirality usually refers to molecules. Two mirror images of a chiral molecule are called enantiomers or optical isomers. Pairs of enantiomers are often designated as “right-” and “left-handed.”

Molecular chirality is of interest because of its application to stereochemistry in inorganic chemistry, organic chemistry, physical chemistry, biochemistry, and supramolecular chemistry.

See also enantiomers — en.wikipedia.org

2 Thanos  Jun 23, 2015 6:57:22pm

re: #1 unproven innocence

and let’s not forget that it was also an important plot point in “Breaking Bad”.

3 Thanos  Jun 23, 2015 6:58:03pm


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