News shows evidence of being plagiarized

Answer:

The increase of noise in the wild zones affects the life of the individuals, promoting their extension, their alteration and diminishing their quality of life, this is also known as noise pollution

Explanation:

Some ecologists maintain that it is essential for the life of the wild animal that there is no disturbance of human contamination, since in this way the animals will be even more stressed and will affect both their feeding and reproduction and even the possible immunology of the animals. animals.

The contaminations are several, one of them is known as sound pollution, which refers to how humans intervene with sound and contaminate natural areas.

Answer:

D

Explanation:

metal is a major cunductor of heat

A cup made of metal would have the best thermal conductor properties.

The answer is option D.

Metals have unfastened electrons that are not bounded to the atoms. those electrons are unfastened to move around within the metal, colliding with the metal atoms and shifting heat to them successfully. This makes metals higher conductors of warmth than maximum other materials.

Diamond is the leading thermally conductive material and has conductivity values measured 5x better than copper, the maximum synthetic metallic inside the united states of America. Diamond atoms are composed of a simple carbon spine this is a really perfect molecular structure for an effective heat switch.

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Answer:

B.

Explanation:

To solve this we must be knowing each and every concept related to  phase diagram. Therefore, the correct option is option B among all the given options.

A phase diagram is a graphic that depicts a substance's thermodynamic state at various pressures and temperatures. The areas surrounding the lines represent the phase of both the material, and the lines represent the points at which the phases are all in equilibrium.

A phase diagram often contains lines of equilibrium and phase boundaries. Multiple phases like matter can exist in equilibrium along these lines. The lines also illustrate the locations of phase transitions. Phase diagram tells about the effect of temperature and pressure on the phase of a substance.

Therefore, the correct option is option B among all the given options.

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Answer:

The correct answer to the following question will be "Particles".

Explanation:

Answer:

particles

Explanation:

on edge

A conjugate acid base pair is an acid and a base that are the same except for an H+, which is option D.

A conjugate base is any compound, of general formula Xn+, which can be transformed into a conjugate acid.

A conjugate acid, on the other hand, is any compound, of general formula HXn+, which can be transformed into a conjugate base X(n-1)+ by the loss of a proton.

This suggests that a conjugate acid base pair is an acid and a base that are the same except for an H+ (proton).

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Answer:

See below.

Explanation:

Take a look at the attachment( s ) below. One has an explanation, the other has the lewis dot structure solution;

The compound with molar mass 28 g/mol has been ethylene, with the molecular formula [tex]\rm \bold{C_2H_4}[/tex].

The Lewis structure has been the structure of the molecule consisting of the number of bonds present in the compound. The given compound has been 100% weight/weight.

The percent of carbon  = 85.7%

The percent of hydrogen = 14.3%

The compound has molecular mass = 28 g/mol

Since, the given percent of hydrogen and carbon has been weight %. The mass of hydrogen and carbon has been:

Mass of carbon = 85.7 g

Mass of hydrogen = 14.3 g

The moles of hydrogen and carbon in the compound has been:

[tex]\rm Moles\;=\;\dfrac{Mass}{Molecular\;mass}[/tex]

Moles of carbon can be given as:

[tex]\rm Moles\;of\;carbon\;=\;\dfrac{85.7\;g}{12.01\;g/mol}[/tex]

Moles of carbon = 7.13 mol

Moles of hydrogen can be given as:

[tex]\rm Moles\;of\;hydrogen\;=\;\dfrac{14.3\;g}{1.008\;g/mol}[/tex]

Moles of hydrogen = 14.19 mol

In the given molecular compound, the number of atoms of hydrogen and carbon has been calculated with respect to carbon moles, to give the empirical formula of the compound.

The atoms of carbon has been:

[tex]\rm Carbon\;=\;\dfrac{7.13}{7.13}[/tex]

Carbon = 1

The atoms of hydrogen has been:

[tex]\rm Hydrogen\;=\;\dfrac{14.19}{7.13}[/tex]

Hydrogen = 2

The empirical formula of compound has been [tex]\rm \bold{CH_2}[/tex].

The compound has molar mass 28 g/mol.

The mass of [tex]\rm \bold{CH_2}[/tex] = 14 g/mol

The number of empirical formula unit has been given as:

[tex]\rm Number\;of\;empirical\;formula\;unit\;=\;\dfrac{14}{28}[/tex]

Number of empirical formula unit = 2

Thus the molecular formula of the compound has been [tex]\rm \bold{C_2H_4}[/tex]. The attached image has been the structure of ethylene.

The compound with molar mass 28 g/mol has been ethylene, with the molecular formula [tex]\rm \bold{C_2H_4}[/tex].

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Answer:

The answer is C

Explanation:

Because when cells are damaged, your body will make new cells  to get rid of damaged cells and if you don't, it can become cancerous. For example, if a damaged cell isn't removed, then it might reproduce agian and then you will have sickly cells or cancerous cells.

Answer:

It’s b

Explanation:

(Apex)

They have different numbers of valence electrons. Hence, option B is correct.

Elements are the simplest substances which cannot be broken down using chemical methods.

Elements within the same period have different numbers of electrons in their valence shells from left to right and different electron configurations. Thus, all elements in the same period are chemically different from each other.

Hence, option B is correct.

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Answer:

It is composed of hydrogen and oxygen.

Explanation:

Answer:

I do not know

Explanation:

b may be I think

Answer:

The correct configuration is - [tex]1s^2s^22p^63s^23p^3[/tex]

Explanation:

Diamagnetism is an extremely week type of attraction that is incited by an adjustment in the orbital movement of electrons because of an applied attractive field. This attraction is nonpermanent and continues due to the presence of an external field.

The magnetic properties of a substance can be controlled by analyzing its electron configuration. If it has unpaired electrons in its outer orbital, at that point the substance is paramagnetic, and in the event that all electrons are found paired, the substance is then diamagnetic.

The electron configuration of the phosphorus is -

[tex]1s^2s^22p^63s^23p^3[/tex]. As it is clear that the outer shell of P has 3 unpaired electron it is paramagnetic.

Answer:

a. 1s2, 2s2, 2p6, 3s2, 3p3  

b.   see attached - the arrow to the left should be facing up, and the arrow to the right should be facing down. I did it backwards - sorry!

c. Phosphorus has three unpaired electrons and therefore is paramagnetic.

Explanation:

If the element or substance has unpaired electrons, then it is paramagnetic. If it is all paired up, then it is diamagnetic. This is only for it's grounded state - if it is an ion, then it behaves differently.  

A significant contribution that Lavoisier made to chemistry is that he was the first to propose the atomic theory that is in Option C, the atomic theory was critical for understanding and studying atoms.

His contribution is significant because he made significant contributions to the fields of chemistry and biology, such as the discovery of oxygen, and also gave the concept of conservation of mass of the atoms, which is why he is known as the "Father of Modern Chemistry," as well as he is well known for his experimentation and precise measurement.

Hence, a significant contribution that Lavoisier made to chemistry is that he was the first to propose the atomic theory that is in Option C, the atomic theory was critical for understanding and studying atoms.

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Answer:

Salty water is more dens than freshwater. answer is D

Explanation:

The statement which accurately describes the transmission of sound and waves in seawater that sound travels faster in seawater because seawater is more dense than the atmosphere.

Sound wave is an example of longitudinal wave. It always travel through any medium as it requires some objects to transfer its energy.

Travelling of sound waves is directly depends on the vibration of the particles of the medium and in seawater particles of the water in the form of salt are present in much amount which makes it dense. And due to dense medium sound waves will travel through seawater through the fast speed.

Hence, sound travels faster in seawater because seawater is more dense than the atmosphere.

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Answer:

A. Polar covalent  

Explanation:

The polarity of a bond depends on the electronegativity difference (ΔEN) between the bonded atoms.

If the electronegativity difference between the atoms is between 0.4 and 1.7, the bond is polar covalent.

For an N-H bond, ΔEN = |3.04-2.20| = 0.84

So, the bond is polar covalent.

B is wrong. A bond is ionic only if ΔEN > 1.6.

C is wrong. A bond is nonpolar only if ΔEN < 0.4.

D is wrong. N and H are not metals.

Answer:

Short answer is ethical concerns pose as limits.

Explanation:

As a scientist, one would want to research anything with limited possibilities. You would have to make sure however you're planning to test you hypothesis is safe for the environment (the people, the plants, the animals, and the earth in general)

Answer:

Os(III)Nb(V) Rh(III)4 C5

Explanation: you need four Rh and five carbon its been a while since i've done it so i can't remember how to order the multiples of the number. hope this helps.

Answer:

A.

Explanation:

A. It exposes more of the solute to the water molecules.

Answer:C.people with perfect understanding of science.

Answer:

C. People with perfect understanding of science

Explanation:

Similar personalities, different backgrounds, and only one perspective are just traits of people.

Perfect understanding of science is relating to a scientist. Scientists have high knowledge of science.

Answer:

Increases the surface area.

Explanation:

Cutting a substance into smaller parts is simply increasing the surface area of the substance.

An increase in surface area will increase the reaction rate because a larger part of the substance gets to interact with the right orientation bringing about the reaction in a much faster rate.

This is also true about dissolving substance.

If the substance to be dissolved is cut into smaller parts, the surface area of the substance is increased and the dissolution of the substance will be fast because a larger part of the substance gets to interact will the solvent quickly bringing about a fast dissolution.

Answer:

Take a look at explanation below.

Explanation:

Part 1 ) A homogeneous mixture of two different substances, by definition, is a solution. A homogeneous mixture itself is known to have same proportions of its components throughout any given sample. Thus it is possible to have two different compounds in this mixture, but still let it distribute among themselves evenly.

_______________________________________________________

Part 2 ) How is this possible? Take the simple example of " mixing salt with water. " This is a solution. The salt ( dissolved material ) is present in the same amount throughout the solution, as it evenly distributes itself.

A homogeneous mixture is formed when;

A homogeneous mixture is one in which there is no phase difference. A homogeneous mixture has a continuous uniform composition throughout the system.

For instance, water and ethanol are miscible in all proportions hence a mixture of the two is an example of a homogeneous mixture.

Also, when sugar is dissolved in water, the sugar completely disappears and become a continuous phase. The resulting solution is a homogeneous mixture.

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Answer:

A. A method of testing an idea

Explanation:

The steps of the scientific process involve formulating a hypothesis, testing it, analysing the data, making conclusions, and reporting the findings.

Answer:

B

Explanation:

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Answer:

The answer is option A

NH4Cl

Hope this helps.

There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore,  a glass of table wine contains 12% alcohol in it.

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound.  Ionic compound are very hard. They have high melting and boiling point because of strong ion bond.

There are so many drinks in markets which differ in the percentage of alcohol present in them. A glass of table wine contains 12% alcohol in it.

Therefore,  a glass of table wine contains 12% alcohol in it.

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Answer:

[ 1 ]CO + [ 3 ]H2 ---> [ 1 ]H20 + [ 1 ]CH4

Explanation:

Let us take a look at the count of each element on the " reactant " side of the equation, first -

Carbon = 1,

Oxygen = 1,

Hydrogen = 2

__________________________________________________________

Respectively do the same for the " products " end -

Hydrogen = 6,

Oxygen = 1,

Carbon = 1

As you can see, Hydrogen is the only element that is not equivalent with respect to the reactant and product sides of the chemical reaction. The " product " end has 3 times that of the number of Hydrogen in the " reactant " end, so the coefficient of Hydrogen on the reactant end should be 3, while the coefficient of Hydrogen on the product end should be 1.

And of course, the rest of the compounds would have a coefficient of 1.

Answer:

A

Explanation:

It seems most appropriate since it's the transfer of heat in fluids including air

Heat is meant to be transferred by convection as energy is transferred through moving currents of warmer air or liquid which is in option a as  it involves the transfer of thermal energy through the movement of a fluid.

In convection process, the warmer regions of the fluid or liquid become less dense, which is causing them to rise. As the warmer fluid rises, it carries thermal energy with it as its properties change. while, the cooler regions of the fluid became denser, and that led to sink. This creates a continuous circulation of the fluid, which helps to distribute the heat in the area.

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Answer:

As you go across a period, radius shrinks because you are adding protons. The added positive charge increases pull on the electron shells. So I believe the answer is D

The statement, that describes the atomic radius change down a column of the periodic table is "the larger the highest energy level number, the larger the atomic radius."

The size of an atom is described by its atomic radius. Atomic radius is commonly defined as the total distance from an atom's nucleus to the electron's outermost orbital.

The atomic radii of elements steadily grow from top to bottom in a group. As we move down the group, the atomic number rises, and so does the number of shells. Furthermore, as we advance down the group, the valence electrons are present in a higher shell, increasing the distance of the valence electrons from the nucleus. As a result, the attraction between the nucleus and the valence electron weakens. When a result, as one moves along a group, the atomic radius grows.

As the number of energy levels (n) decreases down a group, the distance between the nucleus and the outermost orbital rises. As a result, the atomic radius increases.

Hence, the correct option is D.

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Answer:

c

Explanation:

Answer:

Explanation:

conclusions drawn from personal beliefs are called subjective conclusions . A conclusion becomes subjective when it involves ones emotions and opinions

Answer:

Explanation:

3Sn(NO3)2 (aq) +  2Cr(s) → 2Cr(NO3)3(aq ) + 3Sn(S )