Ill give points for it. ​

Answer:yes coefficient u mean??

Explanation:

A wind farm can also be located offshore in most of the state.

Why in most of the state wind frames are located in offshore?

Offshore, faster wind speeds allow for substantially greater energy production. The term "offshore wind energy" describes the installation of wind farms inside of bodies of water. To produce electricity, they use the sea winds. These wind farms may employ floating wind turbines or turbines with solid foundations. Also, compared to other renewable technologies, offshore wind is more similar to onshore wind in terms of resource accessibility and technological maturity. Offshore wind farms are starting to blend into the water and coastal environment as a result.

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Answer:

C4H9

Explanation:

If H = 15.88%

Then C = 100.00 – 15.88 = 84.12

Divide each % value by respective atomic mass

H = 15.88/1 = 15.88

C = 84.12/12 = 7.01

Divide through by smaller value

H = 15.88/7.01 = 2.26

C = 7.01/7.01 = 1

Remove fraction , multiply by 4

H = 9

C = 4

Empirical formula = C4H9

The hydrocarbon could be ( C4H9)2 = C8H18 = octane.

Answer:

cycloocta-1,4-diene- isolated double bond

cycloocta-1,3-diene- conjugated double bond

cyclodeca-1,2-diene- cumulated double bond

cycloocta-1,3,5,7-tetraene- conjugated double bond

cyclohexa-1,3,5-triene (benzene) - conjugated double bond

penta-1,2,4-triene- cumulated and conjugated double bond

Explanation:

A conjugated double bond is a system that contains alternate double and single bonds. It is renowned for its unusual stability.

A cumulated double bond is a double bond system involving about three atoms e.g C=C=C.

An isolated double bond is a system of double bonds separated by more than one single bond.

An answer has a pOH of 8.3. True about the solution is that it is basic and has a pH of 5.7.

When one or more solutes are dissolved in a solvent, the result is a homogenous mixture known as a solution. a solvent is a substance that helps a solute dissolve so that a homogenous mixture results. When a substance dissolves in a solvent, it forms a homogenous mixture, which is known as a solute.

A continuous variation in the relative proportions of a number of substances that is homogeneous and can be changed up to the solubility limit. Although the word "solution" is typically used to describe the liquids state of a substance, it is also possible for gases and solids to form solutions.

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The correct answer is that it is acidic and has a pH of 5.7.

Answer:

3 Covalent Bonds and 1 Co ordinate Bond

Explanation:

4 bonds are in NH4¹+

NH4¹+ is the ammonium ion, which consists of a central nitrogen atom (N) and four hydrogen atoms (H). Nitrogen is located in group 15 of the periodic table and has 5 valence electrons. Hydrogen, on the other hand, has 1 valence electron.

To achieve a stable electron configuration, nitrogen needs to share electrons with the hydrogen atoms. Each hydrogen atom can form a single bond with the nitrogen atom by sharing its valence electron.

In NH4¹+, all four hydrogen atoms form single bonds with the central nitrogen atom. These bonds are represented by lines connecting each hydrogen atom to the nitrogen atom.

So, NH4¹+ has 4 bonds. Each bond represents a pair of electrons shared between the nitrogen atom and a hydrogen atom. The bonding arrangement ensures that the nitrogen atom has a complete octet (eight valence electrons) and each hydrogen atom has two electrons, following the stable configuration of helium.

The "+1" charge on NH4¹+ indicates that the ion has lost one electron, resulting in a positive charge. However, the number of bonds remains the same regardless of the charge.

Therefore, the correct answer is 4 for the number of bonds in NH4¹+.

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A chemical formula tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements present in the compound as well as how many there are for each element in the form of subscripts.

Hope I helped :)

Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Thus option C is correct option.

Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.

Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter.

Giant planet atmospheres have layers of clouds and aerosols (tiny liquid droplets) made from different chemicals because different chemicals condense at different temperatures.

Therefore,  option C is correct option.

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Sedimentation, filtration, and coagulation are the treatments that will help remove contaminants from minerals or from the pipes carrying water from a source.

Sedimentation is a process in which suspended particles settle out of water. It is one of the most basic techniques for removing particles from water. As particles settle, they become trapped in the bottom of a container or settle to the ground in an outdoor setting

Filtration is a method of removing particles from a fluid. It is a physical or chemical separation method that separates solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass.

Coagulation is the process of using chemicals to remove contaminants from water. By creating a chemical reaction, coagulation destabilizes particles and causes them to clump together. This helps to remove the contaminants from the water.

Disinfection is the process of eliminating or destroying pathogens that cause infection. Disinfection eliminates harmful microorganisms by destroying or inactivating them. The disinfectant is a chemical or physical agent that is used to destroy or inactivate harmful microorganisms.

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Fluorine,chlorine and bromine are elements with same properties.

Properties such as the physical or chemical properties differ significantly across a period in a periodic table as electrons are added to the same valence shell.

Hence, for each successive element in a period there is one more electron in it's valence shell than the preceding element,as a result of which physical properties such as melting and boiling point differ significantly.

But for elements present in a group,as all elements in a group have same number of valence electrons ,hence they have same properties.

Among all the groups given,the group comprising of fluorine,chlorine and bromine have the same properties as they belong to the same group and have same number of valence electrons.

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Answer:

According to Coulomb’s law, the electric force between two identical negative charges is inversely proportional to the square of the distance between them. This means that as the distance between the two charges decreases, the electric force between them will increase. Since the charges are both negative, they will repel each other, so as they move closer together, the repulsive force between them will become stronger.

Explanation:

Answer:

b I hope this is right good luck

The equilibrium concentration of NO₂ at this temperature is approximately 0.219 M.

To determine the equilibrium concentration of NO₂, we can use the equilibrium constant expression (Kc) and the given equilibrium concentrations of NO and O₂. The equilibrium constant expression for the given reaction is:

Kc = ([NO₂]²) / ([NO]²[O₂])

We are given the equilibrium concentrations of NO and O₂ as [NO] = 0.31 M and [O₂] = 1.10 M, respectively. We need to find the equilibrium concentration of NO₂, denoted as [NO₂].

Using the given equilibrium concentrations and the equilibrium constant expression, we can rearrange the equation and solve for [NO₂]:

Kc = ([NO₂]²) / ([NO]²[O₂])

0.50 = ([NO₂]²) / ((0.31 M)²(1.10 M))

0.50 = ([NO₂]²) / (0.0961 M³)

Multiplying both sides by 0.0961 M³, we have:

0.04805 M³ = [NO₂]²

Taking the square root of both sides, we find:

[NO₂] = √(0.04805 M³)

[NO₂] ≈ 0.219 M

Therefore, the equilibrium concentration of NO₂ at this temperature is approximately 0.219 M.

It's important to note that the units of concentration (M) were used throughout the calculations, and the answer is rounded to three significant figures based on the given data.

Additionally, the negative sign of the enthalpy change (AH) indicates an exothermic reaction, and the equilibrium constant (K) of 0.50 suggests that the reaction favors the products, as the concentration of NO₂ is greater at equilibrium.

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Answer:

The image represents liquid

Yes, the waxed paper does affect how the light hits the screen. Waxed paper is a translucent material that diffuses light as it passes through.

When light passes through the waxed paper, it scatters in various directions due to the irregularities and texture of the paper's surface. This scattering of light results in a blurry white image on a gray background when the photograph is taken.

Compared to plastic, which is typically more transparent and smooth, waxed paper has a rougher surface and contains wax coatings that further contribute to light scattering. This diffusion of light reduces the sharpness and clarity of the image projected onto the screen.

The scattered light rays create a more diffused and less defined image, leading to a blurry appearance in the photograph.Therefore, the use of waxed paper instead of plastic alters the behavior of light, causing the light to scatter and resulting in a blurry white image on a gray background when projected onto the screen.

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Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\ \)

From the question

mass of substance = 4.2 g

volume = 6 mL

The density of the substance is

\(density = \frac{4.2}{6} = \frac{7}{10} \\ \)

We have the final answer as

Hope this helps you

Answer:

0.70 grams/mililiters

Explanation:

Answer:

Convection

Explanation:

Convection definition:

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

The method of heat transfer that occurs when particles move through a fluid is called convection.

Convection relies on the principle of fluid flow, where hotter particles become less dense and rise while cooler particles sink due to their increased density.

This movement creates a continuous circulation of the fluid, enabling the transfer of thermal energy. As the hot particles rise, they carry their thermal energy with them, and as the cooler particles sink, they absorb heat from their surroundings.

Convection is also observed in natural phenomena such as ocean currents, air currents, and even the movement of magma in the Earth's mantle.

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Cylinder will expand to 6.08 Lit by assuming that all the energy released is converted to work used to push the piston.

Concept of work :If we  apply force on an object and if the object moves and changes it's position, then product of the force and the displacement of an object in the direction of applied force is called work.

Given,

Pressure= P= 738.52 mm Hg = 0.97 atm. (∵ 760 mm Hg = 1 atm)

Initial volume =V1= 1.7 L

Work done = W = 439.6 J

As we need our answer in litters ..

let's convert the work done into suitable units

∴work done = W = 4.26 L-atm (∵ 1 J = 101.3 L-atm)

As given all the energy is assumed to converted into work so we need not to worry About heat loss or entropy.

work done = pressure * difference in volume

W = PΔV

ΔV = 4.26÷ 0.97

∴ΔV = 4.38 LIt

There for, the volume expanded = 4.38 Lit

So, total volume = 4.38+ 1.7 = 6.08 Lit.

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Deuterium (D, or 2H), also known as heavy hydrogen, is an isotope of hydrogen that has a nucleus made up of one proton and one neutron and has a mass twice that of regular hydrogen's nucleus (one proton). The atomic weight of deuterium is 2.014.

Isotopes are atoms with the same number of protons but different numbers of neutrons. They differ in mass, which affects their physical characteristics even though they have nearly identical chemical properties.

The most prevalent element in the universe, hydrogen, has isotopes called deuterium and tritium. All hydrogen isotopes have one proton, but tritium and deuterium also have one neutron each, making their ion masses heavier than those of protium, the only hydrogen isotope without a neutron.

Thus, deuterium,the hydrogen isotope with a mass of 2 amu, to emit light at the same wave lengths as hydrogen.

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Answer:

We are given that there is 95% ethanol by mass in rectified spirit

so, we can say that in a 100g sample, we have 95 grams of ethanol and 5 grams of water

we will find the number of moles of ethanol and water in 100g solution of rectified spirit and use that to calculate the mole fraction

Moles of Ethanol:

Molar mass of ethanol = 46 grams / mol

Number of moles = Given mass / molar mass

Number of moles = 95 / 46

Moles of Ethanol = 2 moles (approx)

Moles of Water:

Molar mass of water = 18 grams per mol

Number of moles = Given mass / molar mass

Moles of water = 5 / 18

Moles of water  =  0.28 moles   (approx)

Mole Fractions:

Mole fraction of a specific compound is the number of moles of that compound divided by the total number of moles in the solution

Mole fraction of Ethanol:

Moles of ethanol / (moles of ethanol + moles of water)

2 / (2 + 0.28)

2 / (2.28) = 0.9 (approx)

Mole fraction of Water:

Moles of water / (Moles of ethanol + moles of water)

0.28 / (2 + 0.28)

0.28 / (2.28) = 0.1 (approx)

Answer:

3. 39 39 54

Explanation:

Atoms are the smallest units of matter that have the characteristics of a chemical element. They consist of small particles called protons, electrons, and neutrons.

Protons are positively charged particles that make up the nucleus of the atom along with neutrons, neutrally charged particles. Their mass is almost the same - about 1 AMU (atomic mass unit). Electrons, the negatively charged particles, are much lighter than them and don't significantly contribute to the mass of the atom. Their mass is equal to about 1/2000 of the mass of a proton or neutron.

This is why we need to determine which atom out of the ones you were given has the highest number of protons and neutrons. The first has 91, the second 90, the third 93, and the fourth 91. This means that the third atom has the highest mass.

Answer:

Based on the student's work, the concentration of I2 in water would be 0.001202 mol/L.

Part 1 to be 0.0185 M. They also determined the average concentration of I2 in the CH2Cl2 phase from their 'best two' determinations in Part 2 to be 0.0197 M.The concentration of iodine present in water in mol/L is 0.0009.

A substance's concentration is the amount of solute present in a given amount of solution. Molarity is the number of moles of solute in one liter of solution and is used to express concentrations.

Given:

Step 1:

The total concentration of reducible iodine is 0.0185 M

The concentration of iodine in dichloromethane layer is 0.0197 M

Step 2 :

Therefore, the concentration of iodine present in layer can be calculated as follows:

Concentration of iodine in water = Concentration of iodine in dichloromethane layer - Total concentration of reducible iodine

= 0.0197 M - 0.0185 M

= 0.0009 M or 0.0009 mol/L

Therefore, the concentration of iodine present in water in mol/L is 0.0009.

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The information provided tells us that the peptide sequence contains a histidine residue at some position.

This information indicates that the peptide sequence contains a histidine residue, which is covalently modified by FDNB to form 2,4-dinitrophenylhistidine. The fact that the histidine residue is modified by FDNB suggests that it is in the free amino form, rather than being part of an amide or guanidino group.

This is because FDNB reacts with free amino groups, but not with amido or guanidino groups. The presence of a histidine residue in the peptide sequence can provide information about the functional and structural properties of the peptide, as histidine is known to play important roles in protein structure and function.

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The rate of a reaction refers to how fast or slow a reaction progresses over time. Option B is correct.

It is a measure of the change in concentration of reactants or products per unit of time. The rate of a reaction can be expressed in different units, such as moles per liter per second or grams per second. Factors that can affect the rate of a reaction include the concentrations of the reactants, the temperature, the presence of a catalyst, and the surface area of the reactants.

The rate law equation, which expresses the dependence of the reaction rate on the concentrations of the reactants, can also be used to determine the rate of a reaction under different conditions. The rate of a reaction is important for many applications, such as designing chemical reactions for industrial processes, optimizing reaction conditions in laboratories, and understanding biological processes that involve chemical reactions. Option B is correct.

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Answer:

1.) 0.619 M

2.) 6.34 L

3.) 12.7 moles

Explanation:

Part 1: To find the molarity, you first need to convert grams to moles using the molar mass.

Molar Mass (NaCl): 22.990 g/mol + 35.453 g/mol

Molar Mass (NaCl): 58.443 g/mol

143 grams NaCl               1 mole
-------------------------  x  ------------------------  =  2.45 moles NaCl
                                    58.443 grams

Molarity = moles / volume (L)

Molarity = 2.45 moles / 3.95 L

Molarity = 0.619

Part 2: To find the volume, you need to use the given moles and the previously calculated molarity.

Molarity = moles / volume (L)

0.619 M = 3.93 moles / volume

(0.619 M) x volume = 3.93 moles

volume = 6.34

Part 3: To find the moles, you need to use the given volume and the previously calculated molarity.

Molarity = moles / volume (L)

0.619 M = moles / 20.55 L

12.7 = moles

Answer:

A. It decreases the temperature difference between the outside and inside.

Explanation:

Answer: .B. 13C NMR spectra display peaks for only carbons that bear hydrogen atoms.

Explanation:

The statements that are true about 13C NMR are:

A. In 13C proton-decoupled NMR spectra, all peaks are singlets.

C 13C NMR chemical shifts occur over a greater range than 1H NMR chemical shifts.

D. 13C NMR easily differentiates between the different hybridized carbons (sp3, sp2, and sp hybridized carbons).organic-chemistry

Therefore, the option that isn't true is option B. "13C NMR spectra display peaks for only carbons that bear hydrogen atoms". This is false because 13C NMR will show every peak in the spectrum and it doesn't matter if it's only carbons that bear hydrogen atoms as everything will be shown.