is Mixing baking soda and vinegar a endothermic chemical reaction

Three allosteric effectors characterize the bohr effect and contribute to shifting the equilibrium for hemoglobin from the r state conformation to the t state conformation are 2,3-bisphosphoglycerate, H⁺ and CO₂.

In addition to active regions, they may also have binding sites for regulatory molecules. They frequently have a sigmoidal V0 vs. [S] curve (S-shaped).

Allosteric enzymes are defined as enzymes containing an additional binding site for effector molecules outside of the active region. The conformational alterations caused by the binding alter its catalytic properties. The effector molecule could be an activator or an inhibitor. All of the biological systems are under strict control.

Your question is incomplete  but most probably your full question was

which three of the following allosteric effectors characterize the bohr effect and contribute to shifting the equilibrium for hemoglobin from the r state conformation to the t state conformation? check all that apply

2,3-bisphosphoglycerate

H⁺

O₂

H₂O₂

CO₂

H₂O

K⁺

Ca²⁺

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Answer:

Chlorine (Cl)

Answer:

Explanation:

The atomic number is the number of protons inside the nucleus of an atom. ... 1.1% carbon 13 with 7 neutrons and a mass of 13.00335 u (measured), and a ... The value given is the mass number of the most stable isotope of that element. ... That's because the chemistry of helium is more like neon (Ne), argon (Ar), etc.

Answer:

B - Poor crop production

Explanation:

I just did the quiz on Edge 2021

Answer:

b

Explanation:

Answer:

the first geological time period of the Paleozoic Era

Explanation:

Answer:

= P + 2eF + N + S + 6gM + 2

Explanation:

Multiply: 1 . N = N

= P + 2eF + N + 1 . S + 6gM + 2

Multiply: 1 . S = S

= P + 2eF + N + S + 6gM + 2

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Answer:

1230

Explanation:

1.20×1025=1230 is your answer

Answer:

D.)

Explanation:

If you add 5 ml of 0.5 M NaOH solution to 20 ml each of buffer B (with a pH of 4.03) and buffer C, the buffer whose pH will change the least is buffer B.

What is a buffer?

A buffer is a solution that resists changes in pH when acid or alkali is added. A buffer solution is a solution that contains a weak acid and its corresponding weak base or a weak base and its corresponding weak acid.

The Henderson-Hasselbalch equation can be used to calculate the pH of a buffer solution before and after adding a strong base or acid.

The equation is pH = pKa + log ([A-]/[HA])

where:pKa is the dissociation constant for the acid[A-] is the conjugate base of the acid when a command (such as NaOH) is added to a buffer solution, the base reacts with the weak acid to form the conjugate base of the acid and water. The addition of the conjugate base of the acid causes the pH of the solution to rising.

When an acid (such as HCl) is added to a buffer solution, the acid reacts with the weak base to form the conjugate acid of the base and water. The addition of the conjugate acid of the base causes the pH of the solution to decrease. Based on the above equation, pH change will be minimum in Buffer B. Therefore, the buffer whose pH will change the least is buffer B.

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When the rate law is applied, the rate constant is It indicates how much activation energy influences reaction rate.

The term "rate law," which is sometimes used to refer to the term rate equation, is a chemical equation that is frequently used to connect the initial (forward) chemical reaction rate to the concentrations or pressures of the chemical reactants and constant parameters.

A rate law demonstrates how the concentration of the reactant affects the rate of a chemical reaction. The rate law often has the form rate = k[A]n for a reaction such an A product, where k is the proportionality constant referred to as the rate constant and n is the order of the reaction in relation to A.

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Answer:

c

Explanation:

i think soo. but not sure.

The new volume of the balloon at the top of Pikes Peak is approximately 5.94 liters.

To solve this problem, we can use the combined gas law equation, which relates the initial and final states of a gas. The equation is given as:

(P1 * V1) / (T1) = (P2 * V2) / (T2)

Given:

P1 = 566.6 torr (initial pressure at 8500 ft)

V1 = 8.6 L (initial volume)

T1 = 26.1°C (initial temperature)

P2 = 400 torr (pressure at the top of Pikes Peak)

T2 = 1.8°C (temperature at the top of Pikes Peak)

We need to solve for V2, the new volume of the balloon at the top of Pikes Peak.

First, let's convert the temperatures to Kelvin:

T1 = 26.1°C + 273.15 = 299.25 K

T2 = 1.8°C + 273.15 = 275.95 K

Now we can plug the values into the equation:

(566.6 torr * 8.6 L) / (299.25 K) = (400 torr * V2) / (275.95 K)

To solve for V2, we can cross-multiply and then divide:

(566.6 torr * 8.6 L * 275.95 K) / (400 torr * 299.25 K) = V2

Calculating this expression, we find:

V2 ≈ 5.94 L

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a. The force acting on the disc is 4.8 Newton.

b. The track must be approximately 0.042 meters long to achieve a final velocity of 20 m/s.

a. To determine the force acting on the disc, we can use the formula:

Force (F) = Magnetic field (B) * Current (I) * Length (L)

Substituting the given values into the formula, we have:

F = 2.0 T * 120 A * 0.02 m

Calculating the expression:

F = 4.8 N

Therefore, the force acting on the disc is 4.8 Newton.

b. To calculate the length of the track required to achieve a final velocity, we need to consider the relationship between force, velocity, and distance. The relevant formula is:

Work (W) = Force (F) * Distance (d) = Change in Kinetic Energy

Given that the initial velocity (Vi) is zero and the final velocity (Vf) is 20 m/s, we can write:

Work (W) = (1/2) * Mass (m) * (Vf^2 - Vi^2)

The mass (m) of the disc is given as 0.010 kg.

Now, we can rearrange the formula to solve for the distance (d):

d = W / F

Plugging in the values:

d = [(1/2) * 0.010 kg * (20 m/s)^2] / 4.8 N

Calculating the expression:

d ≈ 0.042 m

Therefore, the track must be approximately 0.042 meters long to achieve a final velocity of 20 m/s.

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Answer:

REGULATOR - A device which controls the flow of current or voltage in a circuit to a certain desired level. RELAY - An electrical coil switch that uses a small current to control a much larger current. RELUCTANCE - The resistance that a magnetic circuit offers to lines of force in a magnetic field.

Explanation:

With 35.0 mL of a 0.1 M HCl solution neutralizing 25.0 mL of the NaOH solution, we find that the moles of NaOH are equal to the moles of HCl. Using this information, we calculate the molarity of NaOH to be 0.14 M.

To determine the concentration of the NaOH solution, we can use the concept of stoichiometry and the volume and concentration of the HCl solution used in the neutralization reaction. The balanced chemical equation for the reaction between HCl and NaOH is:

HCl + NaOH → NaCl + \(H_{2} O\)

From the equation, we can see that the mole ratio between HCl and NaOH is 1:1. This means that the number of moles of HCl used in the reaction is equal to the number of moles of NaOH present in the solution.

Given that it takes 35.0 mL of a 0.1 M HCl solution to neutralize 25.0 mL of the NaOH solution, we can use the equation:

Moles of HCl = Molarity of HCl × Volume of HCl solution

Moles of NaOH = Moles of HCl

Molarity of NaOH = Moles of NaOH / Volume of NaOH solution

Substituting the given values:

Moles of HCl = 0.1 M × 35.0 mL = 3.5 mmol

Moles of NaOH = 3.5 mmol

Volume of NaOH solution = 25.0 mL = 0.025 L

Molarity of NaOH = (3.5 mmol) / (0.025 L) = 140.0 mmol/L = 0.14 M

Therefore, the concentration of the NaOH solution is 0.14 M.

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Answer:

The process to use this knowledge is explained as below:

Explanation:

1. Farmer should use an indicator to check the pH value of the soil of the field of the farm.

2. If the field or the farm has alkali soil add acid to reduce the pH value.

3. If the soil of the farm is acidic for the crop add alkali to increase the pH value.

4. It will be a neutralization reaction and changes the pH value of the farm.

5. Weather/leeching into the surrounding soil/plant or animal waste will lead to a change in pH value over time.

6. The pH value will need to be regularly monitored and adjusted.

The experimental evidence that led Rutherford to develop his atomic model is; from a gold foil, alpha particles were shown to disperse backward.

Alpha particles were seen to disperse in the opposite direction after being emitted from a gold foil in the now-famous experiment. In his explanation, which he published in May 1911, Rutherford proposed that the dispersion was brought about by a rigid and compact core at the center of the atom known as the nucleus.

The reasoning that went into developing the atomic model was that the only way that alpha particles could be deflected at enormous angles as if they were impacting on a dense opaque region, and this dense region was located at the center of each atom.

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Answer:

4.14516129 g/mL

Explanation:

The density can be found with the following formula.

\(d= \frac{m}{v}\)

where \(m\) is the mass and \(v\) is the volume.

We know the mass is 25.7 grams. We must find the volume.

The volume is equal to the volume of water that is displaced. Subtract the initial volume from the final volume.

⇒ final volume - initial volume

The initial volume is 35.5 mL and the final volume is 41.7 mL.

⇒ 41.7 mL - 35.5 mL

⇒ 6.2 mL

The volume of the aluminum piece is 6.2 mL.

Now we know the mass and the volume.

\(m= 25.7 g\\v=6.2 mL\)

Substitute the values into the formula.

\(d=\frac{m}{v}\)

\(d=\frac{25.7 g}{6.2 mL}\)

\(d=4.14516129 g/mL\)

The density of the aluminum sample is 4.14516129 g/mL

A central sulfur atom (S) contains: a single oxygen atom with a bond, a double oxygen atom with a bond, and a pair of dots on top.

As a result, each oxygen atom has a charge of -0.7, while sulfur has a charge of +1.4. Additionally, we can observe that molecule's double bonds share characteristics with single bonds. Therefore, total no. of structures that resonate for $S_2=2

The molecule sulfur dioxide, or SO2, has two resonance structures that equally contribute to the molecule's hybrid structure.

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Sc₂O₃ react when the solution becomes acidic.

Sc₂O₃  is scandium oxide , it does not react with pure water. Scandium oxide is basic metal oxide. it can react with aqueous acid solution. it produce scandium ion and liquid water. acids can be represented by H⁺ ion . the reaction is as follows:

Scandium oxide react with acidic solution produce scandium ion and liquid water:

Sc₂O₃(s)   +   6H⁺(aq) ------>   2Sc³⁺(aq)    +   3H₂O(l)

lets us take an example with HCl :

Sc₂O₃   +    6HCl    ----->   2ScCl₃    +   3H₂O

The above is the balanced chemical equation

Thus, Sc₂O₃ react when the solution is becomes acidic.

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Answer:

dont know sorry

Explanation:

i dont get it

Answer:

20.48litre

Explanation:

no of moles=molarity ×volume of solution in litre

The purpose of beta-oxidation in living organisms is the catabolism of fatty acids. The correct option is A.

The beta-oxidation of fatty acids refers to the process by which fatty acid molecules are broken down into acetyl-CoA molecules by the enzymes of beta-oxidation. The process begins at the beta carbon atom of the fatty acid, hence the name beta-oxidation.

The beta-oxidation of fatty acids occurs in the mitochondria and involves a series of four repetitive steps catalyzed by four separate enzymes.

Beta-oxidation involves even-number fatty acid molecules.

The product of beta-oxidation, acetyl-CoA can then be used by the citric acid cycle to produce reducing equivalents that enter the electron transport chain for the synthesis of ATP molecules.

Hence, the role of beta-oxidation in cells is to produce acetyl CoA for ATP synthesis.

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The ideal gas equations of state express most real gases at low pressure but do not yield rational results at higher pressures

An ideal gas is defined as a hypothetical gaseous material whose behavior is bold of ideal gas attractive and revolting forces and can be the Presence of electrons large in sulfur dioxide and hence greater van der Waals interplay. Due to greater intermolecular force, this gas has a high boiling point and essential high temperature to behave ideally. Hence sulfur dioxide act as the least ideal gas at low temperatures. It is also good to know that the ideal gas law takes that the gas molecules have negligible. Keeping that in mind, Xe is the largest of the bunch.

So we can conclude that an ideal gas is a theoretical gas controlled by many randomly moving point particles that are not subject to interparticle interactions.

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Answer:

Properties of transition elements

they are all metals and that most of them are hard, strong, and lustrous, have high melting and boiling points, and are good conductors of heat and electricity.

Answer:

Explanation:

Hi  Kiwi,   Atoms are very stable,  it takes a gigantic amount of energy to break them up.  Compounds (molecules) take far far less, and are rearranged all the time.   valence electrons are the electric force that stick molecules together.  it's relatively small, the energy to break up molecules.