3 years ago

3. the closeness of a measurment to its true value is a measure of its ____ ?

Chemistry

1 answer:

valkas [14]3 years ago

4 0

The closeness of a measurement to its true value is a measure of its Accuracy.

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Draw a mechanism for the reaction of methylamine with 2-methylpropanoic acid. Draw any necessary curved arrows. Show the product

Nitella [24]

Answer:

See figure 1

Explanation:

On this case we have a base (methylamine) and an acid (2-methyl propanoic acid). When we have an acid and a base an acid-base reaction will take place, on this specific case we will produce an ammonium carboxylate salt.

Now the question is: ¿These compounds can react by a nucleophile acyl substitution reaction? in other words ¿These compounds can produce an amide? 

Due to the nature of the compounds (base and acid), the nucleophile (methylamine) doesn't have the ability to attack the carbon of the carbonyl group due to his basicity. The methylamine will react with the acid-producing a positive charge on the nitrogen and with this charge, the methylamine loses all his nucleophilicity.

I hope it helps!

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3 years ago

Why can liquid water never go over the boiling point temperature? Where is the energy (heat) that is being added going?

Afina-wow [57]

it's turned into steam.

It dissolves and turns into steam no explanation needed,it'sa simple answer,idk who reported it but i'll answer it again:)

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3 years ago

Balance each of these equations.

Oksanka [162]

Answer:

A. 2NO + O2 -> 2NO2

B. 4Co + 3O2 -> 2Co2O3

C. 2Al + 3Cl2 -> Al2Cl6

D. 2C2H6 + 7O2 -> 4CO2 + 6H2O

E. TiCl4 + 4Na -> Ti + 4NaCl

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3 years ago

Select the correct answer. Which notation is used to represent a beta particle?

trapecia [35]

Explanation:

I think the notation used to represent beta is B

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The acetoacetic ester synthesis is a method for preparing methyl ketones from alkyl halides.

ad-work [718]

The answer is A) true

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