Match the careers in chemistry.

Chemistry

2 answers:

Fudgin [204]3 years ago

7 0

1. sales / marketing

2. theoretical research / information chemist

3. quality of life /environmental engineer

4. finds practical applications / R&D

5. manufacturing /production

6. market research /product development

7. short- and long-term objectives /corporate management

8. patent rights /legal services

9. services equipment /technician

Mandarinka [93]3 years ago

3 0

The careers in chemistry should be closely related to working with chemical substances and the methods involved in experiments. Thus, the answers are finds practical applications information chemist and market research R&D.

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Which acid could not be prepared by treating a Grignard reagent with CO2?

Anni [7]

Answer:

4-oxopentanoic acid.

Explanation:

In this case, we must remember that the Grignard reaction is a reaction in which carbanions are produced. Carboanions have the ability to react with CO2 to generate a new C-C bond and a carboxylate ion. Finally, the acid medium will protonate the carboxylate to produce the carboxylic acid group. 

The molecules that can follow the mechanism described above are the molecules: p-methylbenzoic acid, cyclopentane carboxylic acid and 3-methylbutanoic acid. (See figure 1)

In the case of 4-oxopentanoic acid, the possible carbanion will attack the carbonyl group to generate a cyclic structure and an alcohol group (1-methylcyclopropan-1-ol). Therefore, this molecule cannot be produced by this reaction. (See figure 2)