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NeTakaya
3 years ago
10

Where on the periodic table are metalloid elements most likely found?

Chemistry
2 answers:
ch4aika [34]3 years ago
8 0

D on the left side because if you look st periodic table it shows were most of the medallions are founf

vodomira [7]3 years ago
5 0

Answer:

its the right side ik its not an option on here but its the right side on some

Explanation:

trust me

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Write a mechanism for the esterification of propanoic acid with 18O-labeled ethanol. Show clearly the fate of the 18O label. (b)
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Answer:

See explanation and images attached

Explanation:

a) In the mechanism for the acid catalysed esterification of propanoic acid using ethanol, we can see that the first step is the protonation of the acid followed by nucleophillic attack of the alcohol. Loss of water and consequent deprotonation regenerates the acid catalyst. We can see the fate of the 18O labelled ethanol in the mechanism shown.

b)  In the second mechanism, an unnamed ester is hydrolysed using an acid catalyst. The attack of the acid and subsequent nucleophillic attack of water labelled with 18O leads to the incorporation of this 18O into the product acid as shown in the mechanism attached to this answer.

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