The answer will be (4) HI because the greater the difference of the bonds in electronegativity, the more polar a bond is.
Answer:
Moving Across a Period
Moving from left to right across a period, the atomic radius decreases. The nucleus of the atom gains protons moving from left to right, increasing the positive charge of the nucleus and increasing the attractive force of the nucleus upon the electrons
<span>Biological specimens have been preserved in alcohol and formalin for many years.This could damage the specimen and change the colour of the fluid.Engineered fluids are now used as a substitute for formalin as it is a more sustainable medium..Novec fluids which are low in toxicity are also used.</span>
Answer:
The stereochemical configuration of sorbitol is 2S,3R,4R,5R with an S-configuration at the 2-position.
Explanation:
In the absence of a diagram given of the marked atoms, this is a general information of the stereochemistry of sorbitol. Hopefully it serves as a guide for the answer
- The groups attached to the chiral carbons are assigned a priority.
- Then you should identify the atoms attached to the stereo-centre and priotize them in order of increasing atomic numbers (highest atomic number will take the highest priority 1 and so on).
- Then take note of the direction in which the priorities decrease (from 1 -2 - 3 - 4 ...). If it decreases in a clockwise manner the stereo-center is labelled as R if it decreases in a counterclockwise manner, the stereo-Centre is labelled as S.
Sorbitol has an IUPAC name called (2S,3R,4R,5R)-hexane-1,2,3,4,5,6-hexol which is based on its stereochemical configuration
An unconformity is a missing layer of rock, in other words an erosion separating two units of rock.
