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.
Identify and explain whether MgCl2 and SO2 are ionic or covalent compounds.
Ionic Compounds:
Ionic compounds are chemical compounds formed by the electrostatic attraction between positively charged ions (cations) and negatively charged ions (anions). Typically, ionic compounds involve the transfer of electrons from a metal (which forms cations) to a non-metal (which forms anions). This transfer of electrons results in the formation of a lattice structure held together by strong electrostatic forces.
Covalent Compounds (Molecular Compounds):
Covalent compounds, also known as molecular compounds, are chemical compounds formed by the sharing of electrons between atoms. In covalent bonds, two non-metal atoms share electrons in order to achieve a more stable electron configuration. These shared electrons create covalent bonds that hold the atoms together in discrete molecules.
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