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4 years ago

Which term or terms can be used to describe the model shown: element, compound, or molecule?

Chemistry

1 answer:

Afina-wow [57]4 years ago

4 0

Answer:

Ammonia can be described as a compound and a molecule.

Explanation:

A compound consists of two or more different types of atoms bonded together and a molecule consists of two or more atoms bonded together. They can be the same atoms or a combination of different atoms. The model shown fits both of these terms. It is not an element because an element consists of only one type of atom.

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Which two statements describe disadvantages of selective breeding? A. Desirable traits that are not selected may disappear in a

emmainna [20.7K]

Answer:

B and C

Explanation:

Selective breeding is a procedure that involves the purposeful breeding of selected parents in order to give rise to offsprings with desired traits. Selective breeding procedure has its own advantages, which includes the ability to produce more animal products such as milk, meat etc, however, it has disadvantages.

The disadvantages include that:

- Selectively bred animals are more likely to have some health problem

- Some desirable traits become more common in a population.

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3 years ago

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A shockwave of energy nearby can cause a molecular cloud to collapse under its own _________________.

goblinko [34]

Answer:

Stars form in cold, dense regions of space called molecular clouds. When the force of gravity pulling in on the cloud is greater than the strength of internal pressure pushing out, the cloud collapses into a protostar.

Explanation:

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3 years ago

Determine el porcentaje masa volumen de una solucion compuesta de 150g de etanol y 20g de agua cuyo volumen total es de 165ml

drek231 [11]

Answer:

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3 years ago

In a Compton scattering experiment, an x-ray photon scatters through an angle of 17.4 from a free electron that is initially at

skelet666 [1.2K]

Answer:

D that is

Explanation:

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4 years ago

Sulfonation of naphthalene, C10H8, results in two products. One product is kinetically favored and predominates in the beginning

Marrrta [24]

Explanation:

The sulfonation of the naphthalene yield 2 products under different conditions:

<u>When the reaction is carried at 80 °C, 1-naphthalenesulfonic acid is the major product because it is kinetically favoured product as arenium ion formed in the transition state corresponding to 1-naphthalenesulfonic acid is more stable due to better resonance stabilization. </u>

<u>When the reaction is carried at 160 °C, 2-naphthalenesulfonic acid is the major product as it is more stable than 1-naphthalenesulfonic acid because of steric interaction of the sulfonic acid group in 1-position and the hydrogen in 8-position.</u>

The products are shown in image below.

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4 years ago