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3 years ago

A) accelerated upward. B) slowed and then stopped. C) moved at a constant velocity. D) increased its speed rapidly.

Chemistry

1 answer:

djverab [1.8K]3 years ago

3 0

Answer:

A because the line is showing accelerated upward.

Explanation:

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1. Which groups of atoms become MORE stable when they lose an electron?

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3 years ago

If you were able to magnify a penny down to the atomic level, what two

Lena [83]

The two observations you would make about the atoms are

They are made up largely of empty space
Their mass is concentrated at the center called a nucleus

These observations were made by Ernest Rutherford in his model of the atom established in 1911, when he performed his gold foil experiment and observed the scattering angle of the alpha particles which led him to conclude that the mass of the atom was concentrated at the center.

Also, that most of the alpha particles also went through the gold foil suggested that the atom was made up basically of empty space.

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The two observations you would make about the atoms are

They are made up largely of empty space
Their mass is concentrated at the center called a nucleus

Learn more about the atom here:

brainly.com/question/24873449

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3 years ago

Draw the curved arrow mechanism for the formation of an acetal from acidic methanol and 4-methylpentan-2-one in the fewest steps

morpeh [17]

Answer:

See explanation below

Explanation:

This reaction is known as Ketone hydrolisis in acid medium. This involves the formation of an hemi cetal, and then, the acetal. This is often used to convert ketones or aldehydes in ethers.

The first step involves the reaction with the acid. The carbonile reacts with the acid and forms an alcohol there. The next step is the reaction of the alcohol, in this case, the methanol to form the hemi cetal. Then in the third step, we repeat the first step, using acid to turn the OH group into a great leaving group such water. Then the water leaves the molecule, leaving the space wide open in the next step for methanol, and the acetal is formed.

See picture for the curved arrow mechanism

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3 years ago

_A1Br3+_K=_KBr+_A1<br> fill in the correct coefficients.

Nataly_w [17]

1 A1Br3 + 3 K = 3 KBr + 1 A1

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3 years ago