Complete the mechanism for the keto-enol tautomerization below using bonds, charges, nonbonding electron pairs, and curved arrows (forward reaction only). Use the existing electrons and charges as guides to completing the mechanism of the tautomerization. Do not remove any pre-drawn bonds/lone pairs.

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Explanation:

In the field of organic chemistry, keto–enol tautomerism refers to equilibrium of chemical substance that is among a keto form (an aldehyde or a ketone) and an enol (an alcohol). The enol and the keto forms are believed to be tautomers of each other. The keto form preponderate at equilibrium for a large amount of ketones.

Kindly check the diagram image below to see the solution to the above question:

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

the answer is 75.0%.