you have determined that a and b react to form products. which of the following experimental designs would produce data that would allow you to determine the order of the reaction with respect to reactant a? question 5 options: vary the concentrations of reactants a and b. vary the concentration of reactant a while keeping the concentration of reactant b constant. vary the concentration of reactant b while keeping the concentration of reactant a constant. vary the temperature while keeping the concentrations of both reactants constant.

Answer: Approximate radius of an iron atom ≈ 5.77 × 10^-15m or 0.0577 nm

(a) Impact parameter refers to the perpendicular distance between the path of an incident particle and the center of the target.

Let’s compute the impact parameter using the formula below:

b = cot(θ/2) * (R1 + R2),

where θ = scattering

angle = 95°,

R1 = radius of incident particle,

R2 = radius of target particle

R1 = r, radius of alpha particle

R2 = R, radius of iron atom

R = 1.2 × 10^-10mb = cot(θ/2) * (R1 + R2)

b = cot(95°/2) * (1.2 × 10^-10m + 8.5 × 10^-15m)

b = 3.556 × 10^-15m ≈ 4 μm

Answer: Impact parameter = 4 μm

(b) Scattering occurs when the impact parameter is less than the distance of closest approach (DCA).

Therefore, we need to compute DCA using the formula below:

DCA = 2R(R1 + R2) / (R + R1)sin²(θ/2)

DCA = 2(1.2 × 10^-10m)(17 × 10^-6m + 1.2 × 10^-10m) / (8.5 × 10^-15m + 1.2 × 10^-10m)sin²(95°/2)

DCA = 3.28 × 10^-13m

To determine the fraction of particles scattered at angles greater than 95°,

we need to compute the area of the ring centered at the point of closest approach, but outside of the minimum scattering angle.

The area of this ring is πb² (1 - cos(θ/2)).

Also, the total area of scattering is πDCA² / 4.

Therefore, the fraction of particles scattered at angles greater than 95° is:Fraction = πb² (1 - cos(θ/2)) / πDCA² / 4

Fraction = (4b² / DCA²) (1 - cos(θ/2))

Fraction = (4(4 × 10^-12m²) / (3.28 × 10^-13m)²) (1 - cos(95°/2)) ≈ 0.038

Answer: Fraction of particles scattered at angles greater than 95° ≈ 0.038

(c) To compute the approximate radius of an iron atom, we need to use the formula for the radius of the nucleus of an atom. The Rutherford scattering formula, which is based on Coulomb's law, was used to determine the size of the nucleus of the atom.

Rutherford's formula states that the radius of the nucleus is R = R0A¹/³,

where

A is the mass number of the nucleus,

R0 is the radius of the nucleus of hydrogen (which is about 1.2 × 10^-15m), and

R is the radius of the nucleus of the atom.

Therefore, we need to determine the mass number of iron. The mass number of an atom is equal to the number of protons (atomic number) plus the number of neutrons. The atomic number of iron is 26, and the atomic mass is 56. Thus, the mass number is 56.

R = R0A¹/³R = (1.2 × 10^-15m)(56)¹/³ ≈ 5.77 × 10^-15m

Answer: Approximate radius of an iron atom ≈ 5.77 × 10^-15m or 0.0577 nm

Answer:

I believe it is the last one chlorine

The complete question is: Is the compound \(FeCl_{3}\) ionic or covalent ?

Answer: Compound  \(FeCl_{3}\) is an ionic in nature.

Explanation:

When a metal atom combines with a non-metal atom then transfer of electrons take place from metal towards the non-metal. As a result, an ionic bond is formed between the atom and compound formed is called an ionic compound.

For example, \(FeCl_{3}\) compound contains Fe atom which is a metal and Cl atom which is a non-metal. Hence, electrons will be transferred from Fe atom to the Cl atom forming an ionic bond.

Hence, \(FeCl_{3}\) is an ionic compound.

Thus, we can conclude that \(FeCl_{3}\) is an ionic compound.

Brewing tea in water is an example of solid-liquid extraction. Solid-liquid extraction is a method of separating a solid solute from a liquid solvent by dissolving the solute in the solvent.

The solute can be separated from the mixture by various methods such as filtration, sedimentation, and centrifugation.In this process, the tea leaves or the tea bag are the solid solute that is extracted using water, which is the liquid solvent.

As the tea leaves or tea bag are added to the hot water, the soluble components like caffeine, flavonoids, and other compounds dissolve in the water. The insoluble components like cellulose and other plant fibers remain behind. The tea extract can then be separated from the tea leaves or tea bag by filtration.

This method is widely used in the extraction of natural products like plant extracts, flavors, and fragrances, and is commonly used in the food and beverage industry.This answer should be around 100 words, and for a more detailed answer, you can add examples of the equipment and procedures used for solid-liquid extraction or the difference between solid-liquid and liquid-liquid extraction.

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To keep burning, fires require oxygen. Carbon dioxide is used in certain fire extinguishers to put out flames. Explanation: Because magnesium is higher on the reactivity scale than carbon, it is more reactive and eliminates oxygen from carbon dioxide (to give carbon and magnesium oxide).

The volume of insulation material required is approximately 0.003606 cubic meters (m³).

To calculate the volume of insulation material, we can subtract the volume of the inner pipe (original pipe) from the volume of the outer pipe (original pipe + insulation).

Given:

Length of the pipe, L = 10 m

Radius of the pipe, r = 7 cm = 0.07 m

Thickness of the insulation, dr = 2 mm = 0.002 m

The outer radius of the larger pipe is R = r + dr.

Using the formula for the volume of a cylinder, V = π(R² - r²)L, we can substitute the values and calculate:

V = π((0.07 + 0.002)² - 0.07²) × 10

V ≈ 3.606 × 10⁻³ m³

Therefore, the volume of insulation material required is approximately 0.003606 m³ (cubic meters).

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Answer: The answer to this average atomic mass is 941.337184

Explanation I just added them up to find my solution.

liquid..................

Answer:

pick it up with tongs

Explanation:

Answer:

It would need to reflect what you said in the introduction. Also it would need to summarize everything you said.

Answer:

I think that it is Trachea

Water, or H2O, leaves and evaporates readily due to its molecular structure and its ability to form hydrogen bonds. The hydrogen bonds between water molecules are relatively weak, allowing water molecules to break free from the liquid phase and enter the gas phase.

Additionally, water has a relatively low boiling point, meaning that it can easily be converted into a gas at normal temperatures. The process of evaporation is also affected by factors such as temperature, humidity, and air flow. When these factors are favorable, water molecules are more likely to leave the liquid phase and enter the gas phase.

Evaporation plays an important role in the water cycle, as it helps to transfer water from the earth's surface back into the atmosphere. It also has important applications in fields such as food preservation and cooling technology. Overall, the ability of H2O to leave and evaporate readily is due to a combination of its molecular structure and external factors that affect the process of evaporation.

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Answer:

Examples of physical change include changes in the size or shape of matter. Changes of state, for example, from solid to liquid or from liquid to gas, are also physical changes. Some of the processes that cause physical changes include cutting, bending, dissolving, freezing, boiling, and melting.

Explanation:

I hope this helps

Answer:

About 8.94.

Explanation:

Because we are given a 500. mL volumetric flask, the solution will have a volume of 500. mL.

Find the number of moles of zinc fluoride needed. Recall that molarity is simply moles per liter of solution:

\(\displaystyle 500.\text{ mL} \cdot \frac{0.173\text{ mol ZnF$_2$}}{1\text{ L}} \cdot \frac{1\text{ L}}{1000\text{ mL}} = 0.0865\text{ mol ZnF$_2$}\)

Convert this to grams. The molecular weight of zinc fluoride is 103.38 g/mol:
\(\displaystyle 0.0865\text{ mol ZnF$_2$} \cdot \frac{103.38\text{ g ZnF$_2$}}{1\text{ mol ZnF$_2$}} = 8.94\text{ g ZnF$_2$}\)

In conclusion, about 8.94 grams of solid zinc fluoride should be added.

To carry out the bromination of benzene via an electrophilic aromatic substitution reaction, the following reagents are necessary: Bromine Br2, Lewis acid catalyst (Iron Bromide), organic solvent (tetrachloride).

1. Bromine (Br2) as the electrophile
2. Lewis acid catalyst such as iron (III) bromide (FeBr3) or aluminum bromide (AlBr3) to activate the bromine and enhance the electrophilicity of the system.
3. An organic solvent such as carbon tetrachloride (CCl4) or chloroform (CHCl3) to dissolve the reactants and provide a medium for the reaction to occur.
Bromine (Br2): This provides the bromine atom for substitution on the benzene ring. A Lewis acid catalyst, such as Iron(III) bromide (FeBr3) or Aluminum bromide (AlBr3): This helps generate the electrophilic bromine species and activates the benzene ring for the substitution reaction.
With these reagents, you can perform the bromination of benzene successfully.

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The reagents necessary for the bromination of benzene via an electrophilic aromatic substitution reaction are bromine (Br2) and a Lewis acid catalyst such as iron (III) bromide (FeBr3) or aluminum bromide (AlBr3). Additionally, a solvent such as nitrobenzene or carbon tetrachloride may be used to facilitate the reaction.

1. Bromine (Br2): This is the halogen that will be introduced to the benzene ring during the reaction.
2. A Lewis acid catalyst, typically either Aluminum Bromide (AlBr3) or Iron(III) Bromide (FeBr3): This catalyst is required to generate the electrophilic bromine species that will react with the benzene ring.

Your answer: The reagents necessary for the bromination of benzene via an electrophilic aromatic substitution reaction are Bromine (Br2) and a Lewis acid catalyst, such as Aluminum Bromide (AlBr3) or Iron(III) Bromide (FeBr3).

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The mass of NaCl required to raise the boiling point of 4.73 L of water by 1.00°C is 25.3 g.

The boiling point elevation (ΔTb) is given by the equation ΔTb = Kb × molality, where Kb is the boiling point elevation constant for water (0.51°C/m) and molality is the concentration of solute in mol/kg of solvent. To calculate the molality, we need to convert the volume of water to mass (assuming a density of 1 g/mL) and calculate the number of moles of water. We have:

To raise the boiling point by 1.00°C, we need to find the molality that gives a ΔTb of 1.00°C. Rearranging the equation above, we get:

Now we can calculate the mass of NaCl required to achieve this molality:

Therefore, the mass of NaCl required to raise the boiling point of 4.73 L of water by 1.00°C is 25.3 g (since 550 g is more than the mass of water).

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Answer: all of the above

Explanation:

Plants and animals must be able to adapt to their surroundings, because otherwise they could be in danger because of a simple change weather patterns or different predators roaming around. They will also have possible competition.

The Electron Pair Geometry and molecular geometry of a molecule is determined by the electron group by counting the total number of electron pairs around a central atom.

Electron Pair Geometry defined as the the spatial arrangement of a molecule's bonds and lone pairs. It is determined by the number of electron groups. Molecular geometry can be explained as the geometry which depends on not only on the number of electron groups but also on the number of lone pairs. When the electron groups are all bond pairs, they are named exactly like the electron pair geometry. The electron pairs are the bonded electrons, lone pairs and single unpaired electrons. It the total number of electron pairs is estimated the electron pair geometry of the molecule can be drawn.

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Answer:

2SO2 + O2 → 2SO3

Explanation:

According to this question, sulphur dioxide (SO2) reacts with oxygen to produce sulphur trioxide (SO3). The equation is as follows:

SO2 + O2 → SO3

The above equation is unbalanced because there are unequal number of atoms of each element in the both reactants and products. To balance the equation, we use coefficients to make the number of atoms equal. The balanced equation is as follows:

2SO2 + O2 → 2SO3

- There are 2 moles of S on both sides of the equation.

- There are 4 moles of Oxygen on both sides of the equation.

hope you can read it. hope it's right too :).

All the best.

Answer:

Explantion

Here, we want to get the number of moles in 60 g sample of NaCl

Mathematically, to get this, we have to divide the mass given by the molar mass of NaCl

Thenmolar mass of NaCl is 58.44 g/mol

Thus, we have the number of moles as:

Answer:

A dipole-dipole force is when the positive side of a polar molecule attracts the negative side of another polar molecule.

A hydrogen bond is a dipole-dipole force and is an attraction between a slightly positive hydrogen on one molecule and a slightly negative atom on another molecule.

Answer:

Hydrogen bonds are dipole-dipole interactions in which at least one of the atoms involved is a hydrogen atom. Dipole-induced dipole bonds are those electric bonds that exist between a molecule with a permanent dipole moment and a molecule in which a temporary dipole moment has been induced.

Protons (H⁺) are pumped across the inner mitochondrial membrane as part of the process called electron transport chain, which is an essential step in cellular respiration.

The electron transport chain is responsible for generating adenosine triphosphate (ATP), the main energy currency of cells.

During cellular respiration, electrons are transferred from high-energy molecules (such as glucose) through a series of electron carriers embedded in the inner mitochondrial membrane. As electrons pass through the electron transport chain, energy is released and used to pump protons (H⁺) from the mitochondrial matrix to the intermembrane space.

There are some several reasons;

Establishing an Electrochemical Gradient; The pumping of protons across the inner mitochondrial membrane creates an imbalance of protons, resulting in a higher concentration of protons in the intermembrane space compared to the matrix.

Generation of ATP; The electrochemical gradient created by the proton pumping is utilized by ATP synthase, an enzyme complex embedded in the inner mitochondrial membrane.

Coupling Electron Transport with Proton Pumping; The pumping of protons across the inner mitochondrial membrane is coupled with the flow of electrons through the electron transport chain.

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Answer:

b

Explanation:

I did the test mark the brianlyes byyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy

Answer:

Its the second one (B)

Explanation:

Marki the person that answerd first brainliest :)

Answer:

Electrons are the electrically charged particles u r looking for

In Ezra 10, the article likely refers to a specific passage from the biblical book of Ezra, chapter 10. However, providing with a general understanding of how repeated keywords or themes can be important in any given text.

Repeated keywords or themes in a text can serve as indicators of the central ideas or concepts discussed. They help reinforce key messages, emphasize important points, and create a sense of cohesion within the text. By identifying and analyzing these repetitions, readers can gain insights into the author's intentions and the overall focus of the article. In the case of Ezra 10, if there were any repeated keywords or themes, they would likely point to significant elements in the narrative or themes within the chapter. By identifying and examining these repetitions, readers can uncover recurring motifs, emphasize character development or conflicts, and gain a deeper understanding of the overall message or lessons conveyed by the author.Please note that without the specific text or access to the article you mentioned.

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If any combustion reaction generates 4.50 moles of carbon dioxide then the equivalant amount in grams will be 198 g (in 3 significant figures).

The molar mass of carbon dioxide (CO2) is qual to 44.01 g/mol.

In order to find the mass of 4.50 moles of CO2, we can use the following formula,

mass = number of moles × molar mass

Substituting the provided values, we will obtain,

mass = 4.50 mol × 44.01 g/mol

mass = 198.045 g

Therefore, after rounding to three significant figures, the mass of 4.50 moles of CO2 is obtaine to be 198 g.

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If any combustion reaction generates 4.50 moles of carbon dioxide then the equivalant amount in grams will be 198 g (in 3 significant figures).

The molar mass of carbon dioxide (CO2) is qual to 44.01 g/mol.

In order to find the mass of 4.50 moles of CO2, we can use the following formula,

mass = number of moles × molar mass

Substituting the provided values, we will obtain,

mass = 4.50 mol × 44.01 g/mol

mass = 198.045 g

Therefore, after rounding to three significant figures, the mass of 4.50 moles of CO2 is obtaine to be 198 g.

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Answer:

The current location of the North Magnetic Pole is in the Arctic Ocean, near the coast of northern Canada, specifically in the region of northern Quebec and Ellesmere Island in the Canadian Arctic Archipelago.

Explanation:

However, it's important to note that the North Magnetic Pole is not a fixed point on the Earth's surface, but it is instead constantly moving. The North Magnetic Pole is moving away from Canada and towards Siberia at a rate of about 55 km (34 miles) per year. This movement is caused by changes in the Earth's magnetic field and is known as the "wandering" of the magnetic poles. The exact location of the North Magnetic Pole can be determined by regular measurements and it is used as a reference point for navigation.