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3 years ago

Vicky made the following list to describe humidity:

Chemistry

2 answers:

Naddika [18.5K]3 years ago

7 0

Answer: c

Explanation : because it make sense the most (srry if im wrong!)

kotegsom [21]3 years ago

7 0

Answer: It is the amount of moisture in the air.

Explanation:

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Describe Rutherford's contribution to the atomic model.

Nady [450]

Answer:

Rutherford's experiment, also known as

$\alpha - scattering \: experiment$

supports the existence of neutrons and the nucleus.

Explanation:

In the above diagram, Rutherford was trying to explain his contributions using thin foils of gold and other metals as targets for alpha particles from a radioactive source.

He observed that the majority of particles penetrated the foil either undeflected or with only a slight deflection. But, every now and then an alpha particle was scattered(or deflected) at a large angle..

According to Rutherford, most of the atoms must be empty space. This explains why the majority of alpha particles passed through through the gold foil with little or no deflection. The atoms positive charges, Rutherford proposed are all concentrated in the Nucleus, which is a dense central core within the atom.

Whenever an alpha particle came close to a nucleus in the scattering experiment, it experienced a large repulsive force and therefore a large deflection. Moreover, an alpha particle coming towards a nucleus would be completely repelled and its direction would be reversed. The positively charged particles in the Nucleus are called Protons.

I hope you find this useful... Have a lovely day. 

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3 years ago

In some regions of the world, forests are cut down and then burned to create room for farmland. How might this local environment

UkoKoshka [18]

The answer is D.

Explanation

Without trees, no carbon dioxide will be released into the air. It would not raise oxygen levels, and it wouldn’t effect rising sea levels.

6 0

2 years ago

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Write the Iconic Bond to Metals

Nutka1998 [239]

Answer: The ionic compound formed is magnesium chloride having formula $MgCl_2$

Explanation:

Ionic compound is defined as the compound which is formed by complete transfer of electrons from one atom to another atom.

The atom which looses the electron is known as electropositive atom and the atom which gains the electron is known as electronegative atom. This bond is usually formed between a metal and a non-metal.

Magnesium is the 12th element of the periodic table having electronic configuration of $1s^22s^22p^63s^2$

This element will loose 2 electrons to form $Mg^{2+}$ ion

Chlorine is the 17th element of the periodic table having electronic configuration of $1s^22s^22p^63s^23p^5$

This element will gain 1 electron to form $Cl^{-}$ ion

So, for every 1 atom of magnesium, 2 atoms of chlorine are required. Thus, the chemical formula becomes $MgCl_2$

Hence, the ionic compound formed is magnesium chloride having formula $MgCl_2$

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2 years ago

Nitrogen atoms are part of the structure of some organic molecules, such as all amino acids and some modified carbohydrates. Wha

Anvisha [2.4K]

3. All nucleotides are made up of three component compounds: a 5-carbon sugar (ribose or deoxyribose), a phosphate group, and a nitrogenous base.

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2 years ago

Which is NOT a property of metals? Group of answer choices luster brittleness conductivity ductility

ki77a [65]

Answer:

wait i am kinda counfuesd

Explanation:

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3 years ago

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