this is the measure of the amount of space that matter takes up​

Answer:

Explanation:

Here, we want to get what will happen in a covalent relationship between the two atoms

In a covalent bond, the electrons are shared between the two atoms.

In the ordinary covalent type, the two atoms would contribute electrons which is then shared by them.

The set of electrons shared is controlled by the nuclei of both atoms

The structure of the monomer with empirical formula C4H6 and two double bonds can be represented as follows:

H2C=CH-CH=CH2

The degree of polymerization (DP) is defined as the number of monomer units in a polymer chain. If the polymer molecular weight is 108000, the DP can be calculated as follows:

DP = Molecular weight of polymer / Molecular weight of monomer

DP = 108000 / (12 + 6 + 14)

DP = 108000 / 32

DP = 3375

Therefore, the degree of polymerization of the polymer is 3375.

Explanation:

The mole (abbreviated mol) is the SI measure of quantity of a “chemical entity,” such as atoms, electrons, or protons. It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12.

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Explanation:

Typically, only one element is present, so all atomic radii are the same. -Metallic bonding is not directional. -Nearest neighbor distances tend to be small in order to lower bond energy.

The S1 pocket in chymotrypsin has a hydrophobic hole in which the substrate is bound.

The name of the chemical bond formed between sugar molecules is called a glycosidic bond or link.

The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

The area of the enzyme where the substrate is bound and the reaction is carried out is called the active site. Because of its specificity, an enzyme can only bind particular molecules that fit its requirements for form. It won't interfere with any other molecules. The enzyme makes a modification to the molecule after it has been bound.

The active site of an enzyme is where a substrate binds in order to be transformed from substrate to product. Mostly through hydrogen bonds and other electrostatic interactions, the substrate attaches to the enzyme.

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The purpose of the cotton wool plug on the conical flask is to permit the free passage of air over the edge of the flask and prevent the establishment of semi-anaerobic conditions in the culture. It can also be used to allow gases produced during a reaction to escape while preventing contaminants from entering the flask.

Answer:

During the early Paleozoic Era, the Earth's surface was very different from what it is today. The continents were arranged differently, forming one large supercontinent called Pangea. This landmass was surrounded by a single large ocean called Panthalassa. The climate was much warmer and wetter than it is today, with no ice caps at the poles.

The first land plants, known as bryophytes, appeared during the early Silurian Period, around 430 million years ago. These plants were small and simple, lacking roots and vascular tissue. They grew in damp environments, such as along the edges of lakes and streams. They were important in the development of soils and in the colonization of land by other organisms, such as insects and other arthropods.

Answer:

You are comparing a reaction that produces a chemical change and one that produces a physical change. What evidence could you use to determine which type of change is occurring?

If the reaction is a chemical change, new substances with different properties and identities are formed. This may be indicated by the production of an odor, a change in color or energy, or the formation of a solid.

Sample Response: If the reaction is a chemical change, new substances with different properties and identities are formed. This may be indicated by the production of an odor, a change in color or energy, or the formation of a solid.

What did you discuss in your response? Check all that apply.

the production of an odor

a change in energy

a change in color

the formation of a solid

the formation of new substances

a change in properties and identities

A chemical change may result in the following;

A Physical change may result in the following;

A chemical change leads to the formation of a new substance. This implies that the composition of the substance has being changed.

A physical change does not lead to a change in the nature of the substance. However, the appearance, shape, texture or size of the substance may change.

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Answer:

Explanation

I am sorry but please give detailed question

Answer:

The polarity of a liquid refers to the separation of electric charge within the molecules of the liquid, resulting in a positive and negative end. Based on this, we can draw the following conclusion:

In conclusion, the polarity of a liquid is an important property that affects its behavior and interactions with other substances. Polar liquids have molecules with an uneven distribution of charge, resulting in positive and negative ends. This polarity influences various aspects, such as solubility, surface tension, and the ability to dissolve other polar substances. Additionally, polar liquids tend to exhibit stronger intermolecular forces, leading to higher boiling and melting points compared to nonpolar liquids. Understanding the polarity of a liquid is crucial for various fields, including chemistry, biology, and material science, as it helps explain and predict the behavior and properties of different substances in a wide range of applications.

Answer:

The polarity of a liquid refers to the separation of electric charges within the molecule, resulting in a molecule with a positive end and a negative end. The presence or absence of polarity in a liquid has significant implications for its behavior and interactions with other substances.

In conclusion, the polarity of a liquid plays a crucial role in determining its physical and chemical properties. Polar liquids, such as water, have an unequal distribution of charge within their molecules, leading to hydrogen bonding and strong intermolecular forces. These interactions give rise to properties like high boiling points, surface tension, and solubility, making polar liquids excellent solvents and essential for many biological processes.

On the other hand, nonpolar liquids, such as hydrocarbons, have a symmetrical distribution of charge and lack strong intermolecular forces like hydrogen bonding. As a result, they have lower boiling points, weaker interactions, and are typically less soluble in polar solvents. Nonpolar liquids are commonly used as solvents for nonpolar compounds and have different applications in various industries.

Understanding the polarity of a liquid is crucial in fields such as chemistry, biology, and materials science. It helps predict how substances will interact and dissolve in a given solvent, as well as how they will behave in chemical reactions. Additionally, polarity affects the physical properties of liquids, including their viscosity, conductivity, and surface behavior.

In summary, the polarity of a liquid is a fundamental characteristic that influences its behavior, solubility, and reactivity. Whether a liquid is polar or nonpolar has far-reaching consequences in various scientific disciplines and practical applications

Answer:

chemistry, deposition occurs when molecules settle out of a solution. Deposition can be viewed as a reverse process to dissolution or particle re-entrainment. It is a phase change from the gaseous state to a solid, without passing through the liquid state, also called re-sublimation.

Explanation:

Examples include beaches, deltas, glacial moraines, sand dunes and salt domes. In severely cold temperatures frost will form on windows because the water vapor in the air comes into contact with a window and immediately forms ice without ever forming liquid water.

The type of compound represented by the graph at right is a strong acid (option B).

An acid is generally any compound capable of dissociating into its respective constituent ions when in an aqueous solution.

An acid is categorised as strong or weak depending on whether it can dissociate completely or partially. A strong acid dissociates completely in water.

According to this question, HA, when added to water, dissociates into H+ and A- ions, hence, is a strong acid.

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The reaction type which gives one product is a combination reaction.

What is a combination reaction?

Combination reactions are those in which two or more chemical entities join together to form a single product.

Generally, all the other types mentioned in the question can give single products under different circumstances but a combination reaction always gives a single product as shown in the above reaction.

4Fe  + 3O2  =  2Fe2O3

Hence, the answer is a combination reaction.

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Answer:

trigonal pyramidal

Explanation:

There are two characteristics of molecules, one is geometry and other is shape. Shape is excluding lone pair surrounding the central element and geometry is including the lone pair. Therefore, the  word or two-word phrase best describes the shape of the phosphorus trifluoride ( PF\(_3\)) molecule is trigonal pyramidal.

VSEPR stands for valence shell electron pair repulsions. VSEPR theory is used to predict the shape and geometry of molecules on the basis of valence electrons pairs that are present around the central element of the molecule.

According to VSEPR theory, Lone pair lone pair repulsion is greater than bond pair bond pair repulsion. There are so many limitations of VSEPR theory. There is a repulsion between bond pair electrons and lone pairs present on the central element. The  word or two-word phrase best describes the shape of the phosphorus trifluoride ( PF\(_3\)) molecule is trigonal pyramidal.

Therefore, the  word or two-word phrase best describes the shape of the phosphorus trifluoride ( PF\(_3\)) molecule is trigonal pyramidal.

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Answer:

A. Solid

Explanation:

We must look for the pressure of 0.25atm on the vertical axis, and the temperature of 0°C on the horizontal axis, like we can see in the following drawing:

Finally, the phase of water is solid.

Answer:

0.9 g (approximately)

Explanation:

Answer:

48.9 or 49.0 g of sulfuric acid

Explanation:

Answer:it has eleven electrons

Explanation:

Answer:

The volume of Component 1 is 36 cubic inches.

Explanation:

To calculate the volume of a composite solid, we need to determine the individual volumes of the different components and then add them together.

In this case, the composite solid consists of multiple components with the following dimensions:

Component 1:

Length: 4 inches

Width: 3 inches

Height: 3 inches

To find the volume of Component 1, we multiply the length, width, and height together:

Volume of Component 1 = Length x Width x Height = 4 in x 3 in x 3 in = 36 cubic inches

Therefore, the volume of Component 1 is 36 cubic inches.

Please provide the dimensions of the remaining components of the composite solid, and I will calculate the total volume by summing up the individual volumes.

The partial charges on each fluorine atom are negative. Option B) The central O atom is the correct answer. Option B

The partial charges in a molecule are determined by the electronegativity values of the atoms involved. Electronegativity is the ability of an atom to attract electrons towards itself in a chemical bond. In the case of \(F_2O\), fluorine (F) is more electronegative than oxygen.

Fluorine is the most electronegative element on the periodic table, meaning it has a high ability to attract electrons. Oxygen is also relatively electronegative but less so than fluorine. When fluorine atoms bond with oxygen, the shared electrons will be pulled more towards the fluorine atoms, creating a polar covalent bond.

In \(F_2O\), each fluorine atom will pull the shared electrons towards itself, resulting in a higher electron density around the fluorine atoms. This creates a region of partial negative charge around the fluorine atoms.

Conversely, the oxygen atom will have a region of lower electron density and, therefore, a partial positive charge. This is because the shared electrons spend more time around the fluorine atoms due to their higher electronegativity.

Option B

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²³⁵UF₆ effuse 1.0042 times faster than ²³⁸UF₆.

The expression for rate of effusion of two gases can be define as follows :

Effusion Rate A / Effusion Rate B = \(\sqrt{Mb / Ma}\)

now we have to calculate the molar masses of the given :

molar mass of ²³⁵UF₆ = 235 + 6(19) = 349 g/mol

molar mass of  ²³⁸UF₆ = 238 + 6(19) = 352 g /mol

now substituting the values in the formula : we get,

Rate ²³⁵UF₆ / Rate ²³⁸UF₆ = \(\sqrt{352 / 349}\) = 1.0042

Therefore , the Rate ²³⁵UF₆ effuses 1.0042 times faster than ²³⁸UF₆.

Thus, ²³⁵UF₆ effuse 1.0042 times faster than ²³⁸UF₆.

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Answer:

Reactions are given below.

Explanation:

Chemical equation:

CuCl₂ + NaOH     →    Cu(OH)₂ + NaCl

Balanced Chemical equation:

CuCl₂(aq) + 2NaOH(aq)     →    Cu(OH)₂(s) + 2NaCl(aq)

Ionic equation:

Cu²⁺(aq) + 2Cl⁻(aq) + 2Na⁺(aq) + 2OH⁻(aq) →  Cu(OH)₂(s) + 2Na⁺(aq) + 2Cl⁻ (aq)

Net ionic equation:

H⁺(aq) + OH⁻(aq) → H₂O(l)  

The Cl⁻(aq) and Na⁺ (aq) are spectator ions that's why these are not written in net ionic equation. The Cu(OH)₂ can not be splitted into ions because it is present in solid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.  

Answer:

Explanation:

To find the number of molecules of NaCl that would have the same mass as 5.5 x 10^24 atoms of xenon, we need to know the molar mass of both substances. The molar mass of NaCl is 58.44 g/mol and the molar mass of xenon is 131.29 g/mol.

We can use the following formula to find the number of moles of xenon:

moles = mass/molar mass

We can use the number of moles of xenon to find the number of moles of NaCl.

As we know,

mass of 5.510^24 atoms of xenon = 5.510^24 atoms * 131.29 g/mol

mass of NaCl would be same as mass of xenon, so number of moles of NaCl would be same as number of moles of xenon.

moles of NaCl = moles of xenon = mass of xenon / molar mass of NaCl = (5.5*10^24 atoms * 131.29 g/mol) / 58.44 g/mol

So, the number of molecules of NaCl that would have the same mass as 5.5 x 10^24 atoms of xenon is (5.5*10^24 atoms * 131.29 g/mol) / 58.44 g/mol * Avogadro's number.

In order to promote a healthy environment, the piece of trash should be matched to the best method of disposing them as follows:

Compost rotting can be defined as a chemical change that involves the mixture of decayed organic substances such as dead leaves, vegetables, manure, or egg shells, that are added to the soil, in order to fertilize it.

Recycling can be defined as a waste (trash) management technique that involves the process of converting a raw material that has reached the end of its life cycle into new and reusable items.

In order to promote a healthy environment, the piece of trash should be matched to the best method of disposing them as follows:

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Answer:

Recycling - television set, plastic milk bottle, and soup can.

Compost - egg shell, vegetable peel, and grass clippings.

Explanation:

Plato

Answer: A

Explanation:

Answer:

0.72 g

Explanation:

Note that, the mass in gram of any substance is obtained from the relationship;

Mass= number of moles × molar mass

From the sequence of the reaction, the number of moles of Lithium diisopropylamide is 6.75mmol which is the same as 6.75 × 10^-3 moles

Molar mass of base= 107.1233 g/mol

Hence mass of the base is given by;

6.75 × 10^-3 moles × 107.1233 g/mol = 0.72 g

Answer:

false

Explanation:

The wavenumber of the scattered stokes is 20475.0108cm-1

Data;

let's make

J' = excited rotational quantum number

J" = ground rotational quantum number

B = rotational constant

for

J = 2 -- 0

J' = 2, J" = 0

\(\delta V = B * 2*3 - B*0(0+1)\\\delta V = 6B\)

The rotational constant B for N2 = 1.9982 cm-1

\(\delta V = 6 * 1.9982 = 11.9892 cm^-^1\)

The wave number of the scattered stokes radiation is given by

\(\delta V_s = V_e_x - \delta V\)

substituting all values across

\(\delta V_s = 20487 - 11.9892\\\delta V_s = 20475.0108 cm^-^1\)

The wavenumber of the scattered stokes is 20475.0108cm-1

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