The turnover number is defined as the maximum number of substrate molecules that can be converted into product molecules per unit time by an enzyme molecule. The concentration of enzyme active sites is not necessarily equal to the concentration of enzyme molecules, because some enzyme molecules have more than one active site. If the enzyme molecule has one active site, the turnover number is given by turnover number=Rmax[E]t=k2(Rmax is often written as Vmax) If the enzyme molecule has more than one active site, then [E]t is multiplied by the number of active sites to determine its effective concentration. Determine the value of the turnover number of the enzyme carbonic anhydrase, given that Rmax for carbonic anhydrase equals 249 μmol⋅L−1⋅s−1 and [E]t=2.20 nmol⋅L−1 . Carbonic anhydrase has a single active site.

An alloy is the mixture of different metals and the elements. The difference is the substitutional atoms has nearly the same sized metal atoms while interstitial  contain both the large and the small sized atoms of the different elements. The example of substitutional brass and interstitial alloys is carbon.

An alloy is the mixture of different metals and the elements. It has the several metallic properties and it can be classified as the substitutional alloy and the interstitial alloy.

The difference in between the substitutional and the the interstitial alloys are that substitutional atoms which contains nearly the same sized metal atoms while the interstitial alloys contain the both large and the small sized atoms of the different elements. The examples of substitutional alloys are brass, pewter, etc. and  interstitial alloys are, carbon, steels etc.

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The correct answer in this case is binding energy, which is the energy released when a collection of nucleons form a nucleus.

The correct answer is the last choice.

Answer:

Fractional distillation of crude oil in laboratory

Explanation:

In general, we can sort them according to their boiling point.

We should first place a ball of mineral wool soaked with petroleum into a boiling tube and heat it with a Bunsen flame. At the beginning of the experiment, heat the mineral with a gentle flame, and then more strongly later. The fraction with a lower boiling range will distil out first. Since petrol is quite volatile, it should be condensed by cooling with water or an ice-water bath.

Petrol will be collected first, as it has a lower boiling point than kerosene. It will turn into vapour and condense again in the receive tub in the beaker.

Answer:

55.9 g KCl.

Explanation:

Hello there!

In this case, according to the definition of molality for the 0.500-molar solution, we need to divide the moles of solute (potassium chloride) over the kilograms of solvent as shown below:

\(m=\frac{mol}{kilograms}\)

Thus, solving for the moles of solute, we obtain:

\(mol=m*kilograms\)

Since the density of water is 1 kg/L, we obtain the following moles:

\(mol=0.500mol/kg*1.50kg\\\\mol=0.75mol\)

Next, since the molar mass of KCl is 74.5513 g/mol, the mass would be:

\(0.75mol*\frac{74.5513g}{1mol}\\\\55.9g \ KCl\)

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Answer:

The atomic size decreases with an increase in atomic number when we move from left to right.

Explanation: Hope it helps you:))))))

                      Have a great day.

The assumption that accounts for the great compressibility of gases compared to liquids and solids is assumption 1: Gases are made up of molecules which are relatively far apart. Option A)

The assumption that accounts for the great compressibility of gases compared to liquids and solids is assumption 1: Gases are made up of molecules which are relatively far apart.

In gases, the molecules are widely spaced and have significant gaps between them. This allows gases to be easily compressed under pressure. When external pressure is applied to a gas, the molecules can be brought closer together, reducing the volume occupied by the gas. The gaps between the molecules provide room for compression, allowing gases to occupy a smaller volume.

In contrast, liquids and solids have molecules or particles that are closely packed together. The intermolecular forces in liquids and solids are stronger, limiting their compressibility. The molecules or particles are already in close proximity, leaving little room for further compression.

Therefore, the assumption that gases consist of molecules that are relatively far apart accounts for their greater compressibility compared to liquids and solids. Hence Option A) is correct.

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Answer:

protons-50

Neutrons-75

protons are 50, neutrons are 75

Answer:

HPO₄⁻² predominates at pH 9.3

Explanation:

These are the equilibriums of the phosphoric acid, a tryprotic acid where 3 protons (H⁺) are realesed.

H₃PO₄ + H₂O   ⇄   H₂PO₄⁻   +   H₃O⁺   pKa 2.14

H₂PO₄⁻  +  H₂O   ⇄   HPO₄⁻²  +  H₃O⁺  pKa 6.86

HPO₄⁻²  +  H₂O   ⇄   PO₄⁻³   +   H₃O⁺  pKa 12.38

The H₂PO₄⁻  works as amphoterous, it can be a base and acid, according to these equilibriums.

H₂PO₄⁻ +  H₂O   ⇄   HPO₄⁻²  +  H₃O⁺

H₂PO₄⁻ +  H₂O   ⇄   H₃PO₄  +  OH⁻

pH 9.3 is located between 6.86 and 12.38 where we have this buffer system HPO₄⁻² / PO₄⁻³, where the HPO₄⁻² is another amphoterous:

HPO₄⁻ +  H₂O   ⇄   H₂PO₄⁻  +  OH⁻

HPO₄⁻²  +  H₂O   ⇄   PO₄⁻³   +   H₃O⁺

The media from the two pKa, indicates the pH where the protonated form is in the same quantity as the unpronated form, so:

(6.86 + 12.38) /2 =  9.62

Above this pH, [PO₄⁻³] > [HPO₄⁻²].

In conclussion, at pH 9.3, [HPO₄⁻²] > [PO₄⁻³]

Answer:

Largest: Mg

Smallest: Cl

Explanation:

Answer: D. Intensity

Explanation: Intensity is correct, because if you originally were working on a treadmill with a speed of 8, that is how much intensity your putting your body on. And if you put the speed for a treadmill at 11 to increase your exercise, you are increasing the speed you have to run, making it more intense. The more intense you make your workout or training, the more stressful exercise you are doing.

Hope this helps,

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Answer: The human body readily responds to changing environmental stresses in a variety of biological and cultural ways. We can acclimatize to a wide range of temperature and humidity. ... This ability to rapidly adapt to varying environmental conditions has made it possible for us to survive in most regions of the world.

Explanation:

Answer:

Eat other organisms

Explanation:

The label that belongs in the area marked X is: Producers absorb from soil.

Producers refer to the autotrophs that make their own food. They derive the nutrients that make photosynthesis possible from the sun and soil. Water and nutrients are absorbed from their roots.

So, in the space marked X, we can see an autotroph tapping nutrients from the soil.

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Answer:

The height of A is 900

Explanation: Beside A, there is a number which explains what the height is so the answer is A.

Answer:

Calculate the mass in grams.

Answer: Calculate the mass in grams of calcium bromide the chemist has added to the flask. Round your answer to 3 significant digits.

Explanation:

An example of heterogeneous equilibrium is:

Heterogeneous equilibrium refers to an equilibrium state in a chemical reaction where the reactants and products exist in different physical states or phases. It occurs when substances in different phases, such as solids, liquids, and gases, are involved in a chemical reaction.

Considering the given equations:

The equation I: FeO(s) + CO(g) ⇌ Fe(s) + CO₂(g) represents a heterogeneous equilibrium.

This is because the reactants and products involve different phases (solid and gas). FeO is a solid (s), CO is a gas (g), Fe is a solid (s), and CO₂ is a gas (g). The reaction involves the conversion of a solid and a gas to another solid and a gas, and the equilibrium is established between these different phases.

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we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.

To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.

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Answer:

4.002 mol is in 68.16 grams of NH3

The difference between the energy needed to break the bonds in the reactants and the energy released when new bonds are created in the products is what essentially determines the enthalpy change.

In general, a bond must be broken by a positive change in enthalpy, whereas a bond must be formed by a negative change in enthalpy. In other words, the process of breaking a bond is endothermic, whereas the process of forming a bond is exothermic.

The energy needed to break the links between the reactants less the energy released during the formation of new bonds in the products is the enthalpy of reaction.

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In terms of bonds breaking and forming, what's responsible for the enthalpy change?

Answer:

i am pretty sure that it is the inter core

Answer:

c or b

Explanation:

brainiest

Answer:

i thinks its a. but iam not sure

Answer:

How do amoeba respire.

Define Diffusion.

The first statement is false.

The second statement is also false. The goal of investor-owned utilities is to provide a return on investment for their shareholders.

Regional transmission organizations can indeed prefer one energy source over another, making the third statement true.

The fourth statement is unclear. Power sources can vary across regions, and it depends on specific locations and their energy infrastructure.

The fifth statement is true. Generation refers to the production of power from different energy sources, such as coal, natural gas, nuclear, wind, solar, hydro, and others.

The first statement is false. Distribution brings electricity directly to your home, while transmission is responsible for transporting electricity over long distances from power plants to distribution substations.

The second statement is also false. The goal of investor-owned utilities is to provide a return on investment for their shareholders. However, distribution, not transmission, is responsible for bringing electricity directly to homes.

Transmission focuses on high-voltage power lines that transport electricity across long distances, while distribution operates at lower voltages to deliver electricity to individual consumers.

Regional transmission organizations can indeed prefer one energy source over another, making the third statement true. These organizations play a role in managing and coordinating the transmission of electricity within specific regions.

While they prioritize maintaining a reliable and stable power grid, they may also have preferences or policies regarding the use of certain energy sources, such as renewable energy, to align with environmental goals or regulatory requirements.

The fourth statement is unclear. Power sources can vary across regions, and it depends on specific locations and their energy infrastructure. However, public power systems, which are owned and operated by government entities, do provide electricity to a significant portion of the country, including municipalities and rural areas.

The fifth statement is true. Generation refers to the production of power from different energy sources, such as coal, natural gas, nuclear, wind, solar, hydro, and others.

Power plants generate electricity by converting these energy sources into electrical energy, which is then transmitted and distributed to end consumers through the power grid.

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Answer:

Explanation:

The new volume can be found by using the formula

\(V_2 = \frac{P_1V_1}{P_2} \\\)

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

From the question we have

\(V_2 = \frac{118 \times 17}{265} \\ = 7.569811\)

We have the final answer as

Hope this helps you

Answer:

32C Is the water hot or cold?

Explanation:

The final temperature of 690.1 g of water is 20.024°C.

To find the final temperature of 690.1 g of water, we need to know the initial temperature and the amount of heat added to the water. Water has a specific heat capacity of 4.184 J/g°C.

Here is an example calculation:

Let's say the initial temperature of the water is 20°C and we add 100 J of heat. To find the final temperature, we can use the equation:

q = mcΔT

where q is the heat added, m is the mass of the water (690.1 g), c is the specific heat capacity of water (4.184 J/g°C), and ΔT is the change in temperature.

Solving for ΔT:

ΔT = q / (mc)

ΔT = (100 J) / (690.1 g × 4.184 J/g°C)

ΔT = 0.024°C

We multiply the original temperature by the temperature change to obtain the final temperature:

final temperature = initial temperature + ΔT

final temperature = 20°C + 0.024°C

final temperature = 20.024°C

So the final temperature of 690.1 g of water is 20.024°C.

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the answer is C: Kinetic energy would turn into Potential energy.

The resulting pH of the solution is 1.74(approx).

To solve this problem, we need to use the concept of acid-base equilibrium and the pH scale. The addition of sulfuric acid will increase the concentration of H+ ions in the solution, which will shift the equilibrium of the \(H_2S\)/HS- system. We can use the following equation to calculate the pH of the resulting solution:

Ka = [H+][HS-]/\(H_2S\)]

where Ka is the acid dissociation constant for \(H_2S\), [\(H_2S\)], [HS-], and [H+] are the concentrations of the \(H_2S\), HS-, and H+ ions, respectively.

First, we need to calculate the initial concentrations of\(H_2S\) and HS- in the solution:

[\(H_2S\)] = 0.505 M

[HS-] = 0.505 M

Next, we need to calculate the amount of H+ ions added to the solution by 1 mL of concentrated sulfuric acid. To do this, we can use the following equation:

[H+] = (n/V) = (18.4 mol/L) x (1x\(10^{-3}\) L) = 1.84 x\(10^{-2}\)mol

where n is the amount of sulfuric acid added in moles, V is the volume of the solution in liters, and 18.4 mol/L is the concentration of the sulfuric acid.

Now, we can calculate the new concentrations of \(H_2S\), HS-, and H+ ions in the solution:

[\(H_2S\)] = [\(H_2S\)]0 - [H+] = 0.505 - 1.84x\(10^{-2}\)= 0.486 M

[HS-] = [HS-]0 + [H+] = 0.505 + 1.84x\(10^{-2}\) = 0.524 M

[H+] = 1.84 x \(10^{-2}\)M

Finally, we can use the equation for Ka to calculate the pH of the resulting solution:

Ka = 1.1 x \(10^{-7}\)

[H+] x [HS-]/[\(H_2S\)] = Ka

pH = -log[H+]

Substituting the values, we get:

(1.84 x \(10^{-2}\)) x (0.524)/(0.486) = 1.98 x \(10^{-2}\)

pH = -log(1.98 x \(10^{-2}\)) = 1.74(approx)

Therefore, the resulting pH of the solution is 1.74(approx)

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The ideal gas law and stoichiometry must be used to calculate the volume of carbon dioxide gas produced by the breakdown of 4.09 g of calcium carbonate at STP (Standard Temperature and Pressure).

Use the molar mass of calcium carbonate (CaCO3) to determine how many moles it contains. CaCO3 has a molar mass of 100.09 g/mol.

CaCO3 mass divided by its molar mass equals the number of moles of CaCO3: 4.09 g/100.09 g/mol.

The number of moles of carbon dioxide (CO2) generated may be calculated using the stoichiometric ratio from the balancing equation. By using the equation:

A unit of CaCO3 and CO2 is produced.

CO2 moles equal the same number of moles of CaCO3.

Use the ideal gas law to translate the volume of carbon dioxide into moles.

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Answer:

A

Explanation:

.75 + .25 + 1.25 = 2.25 atm

1 atm is 760 mm hg

2.25 * 760 = 1710 mm HG

Answer:

\(\huge\boxed{\sf 2.25\ atm = 1710\ mm\ of\ Hg}\)

Explanation:

Partial pressure of gas A = 0.75 atm

Partial pressure of gas B = 0.25 atm

Partial pressure of gas C = 1.25 atm

Total partial pressure = 0.75 atm + 0.25 atm + 1.25 atm

= 2.25 atm

We know that:

1 atm = 760 mm of Hg

Multiply 2.25 to both sides

2.25 atm  = 760 × 2.25 mm of Hg

2.25 atm = 1710 mm of Hg

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