A student was asked to draw the Lewis structure for CH20. Is the Lewis structure the student drew below correct? :H: :0: | :H: Why or why not? Be sure to support your claim with evidence and reasoning. Write your response in complete sentences.
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.
Please refer to the example image to answer. You must use CER, claim-evidence-reasoning. Make sure that your answer is CLEAR.
Claim is your answer to the question. Evidence is from the image and reasoning is your explanation.
Proper evidence for all Lewis structures include:
Carbon or most electronegative atom in center.
Octet of electrons surrounding each atom.
Total number of electrons depicted equals same total number of valence electrons from each participating atom.
Make sure to refer to the example image because it shows the correct Lewis structures. The question you're answering is about the students drawing of CH20.
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