Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
![The image contains instructions and a partial graph intended for an educational purpose. The text reads:
[Text]
"to draw the molecular orbital energy diagram for HF. While you should label each of the molecular orbitals, you do not need to sketch pictures of the orbitals."
[Graph Explanation]
The graph features a vertical energy axis labeled "E, eV", which represents energy levels in electron volts. The axis has markings at intervals of 10, ranging from 5 eV at the top to -35 eV at the bottom. An arrow at the top of the axis likely indicates higher energy as one moves upward. The horizontal axis is not shown, and no specific molecular orbitals are labeled on the graph.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F09c533f0-773b-4ddb-abaf-f88b025c7ffb%2F780ac0e5-3dbd-4cb4-a3a7-df5a07d45541%2Flveazge_processed.jpeg&w=3840&q=75)
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