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4 years ago

4. What type of evidence do you think would be most difficult to collect

Chemistry

2 answers:

Tanzania [10]4 years ago

7 0

Answer:

The type of evidence that is more difficult to collect is evidence known as trace, for example, fibers, hair, or signs of dirt.

Explanation:

For the collection of this type of evidence, specialized equipment such as special vacuum cleaners, tweezers, etc. are used, all with the purpose of carrying out the collection of trace evidence. This type of evidence is characterized by being very difficult to find.

mars1129 [50]4 years ago

3 0

I think it is trace evidence since it is really small and hard to find.

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What sort of adaptations are usually passed on to the offspring of an organism

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4 years ago

Arrange the following cellular components in order of decreasing size: hexokinase ribosome CO2 glucose

Novay_Z [31]

Answer:

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3 years ago

Which is a homogeneous mixture?

Klio2033 [76]

B i think but im not 100 percent sure

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3 years ago

Determine whether the following statement is true or false: In isolation, the formation of an activated carrier, such as ATP, NA

kolezko [41]

Answer: True

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3 years ago

Which one of the following choices describes most accurately the actual, internal reaction temperature (in other words, the temp

morpeh [17]

Answer:

c) Boiling point of the reaction mixture (reflux temperature)

Explanation:

Hello,

At first, it is important to remember that esterification is an organic chemical reaction related with the neutralization of organic acids and alcohols to form esters, in this case from 1-butanol and acetic acid to n-butyl acetate as shown below:

$CH_3COOH+CH3(CH_2)2CH_2OH \rightleftharpoons CH_3COOCH_2(CH_2)2CH3+H_2O$

It is shown that is a reaction which equilibrium condition is present since the n-butyl acetate is likely to come back to the acetic acid and the 1-butanol. Moreover, it is necessary to catalyze esterification with sulfuric acid and including constant heating and stirring, nonetheless, such heating induces boiling of the reacting mixture containing the acetic acid and the 1-butanol which are likely to boil. Therefore, reflux must be implemented as shown on the attached picture to prevent reactant lost which shift the reaction leftwards, diminishing n-butyl acetate yield, thus, the most accurately way to describe the actual temperature is c) boiling point of the reaction mixture (reflux temperature) since acetic acid and 1-butanol have a composition which modifies their boiling point into an only one that is the mixture's boiling point which is also related with the temperature at which the reflux is performed.

Best regards.

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3 years ago