What is an enantiomer (stereo) isomer?
Could you superimpose your right hand on you left hand? (Or on your identical twin's left hand?) The answer is NO.
To verify this optical isomerism, I would strongly advise you to construct a few basic models (using toothpicks and plasticene). You also need to practice representing three-dimensional optical isomers on paper. These tasks are not easy, but they are necessary if you want to fully comprehend the optical isomerism; reading this spray alone will not provide that understanding.
Examples of handedness abound in biology: all sugars are right-handed, all proteins are left-handed, and our digestive enzymes, which are themselves handed, would not function on the left-handed isomer. The majority of medications used today are handed, and using the incorrect isomer can have detrimental biological effects.
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An enantiomer (stereo) isomer is a type of stereoisomer that exists when two molecules are non-superimposable mirror images of each other. They have the same connectivity of atoms but differ in their spatial arrangement due to the presence of one or more chiral centers.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- How would you find the number of diastereomers?
- When is a compound optically active?
- What do L-, D-, R-, and S- (in enantiomers) stand for?
- How can we separate enantiomers?
- How does one tell if a compound is optically active or inactive by looking at it? For examples: 1-4-dichloro-2-methylpentane and 1,2-dichloro-2-methylpentane

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