What is the mechanism of action of uncompetitive inhibitors on enzymes?

Answer:

Chemical properties can be tested without changing the substance

Explanation:

Nylon, a polyamide, is produced from hexanedi-amine and a substance, x. This substance, x, is most probably a carboxylic acid.

A polymer containing repeating units connected by amide bonds being called a polyamide. Both naturally occurring and synthetic polyamides are found. Proteins found in materials like wool and silk were examples of naturally produced polyamides.

The term "nylon" refers to a family of polymeric materials made up of polyamides. Nylon would be a silk-like thermoplastic that may be formed into threads, films, or other shapes. It is often manufactured from petroleum.

Therefore, Nylon, a polyamide, is produced from hexanedi-amine and a substance, x. This substance, x, is most probably a carboxylic acid.

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Answer:

2. nickel (Ii) acetate

3. sodium chromate tetrahydrate

C. Walking on wet floors shows that Friction is undesirable

Answer:

y = 2.77 cm

Answer: The third dimension is 2.77 cm

The volume of steam that could be produced at STP if 12.8 g of oxygen reacts with excess hydrogen is 17.92 L

We'll begin by obtaining the mole of steam produced. This can be obtained as follow:

2H₂ + O₂ -> 2H₂O

From the balanced equation above,

1 mole O₂ reacted to produce 2 moles of steam, H₂O

Therefore,

0.4 mole O₂ will react to produce = 0.4 × 2 = 0.8 mole of steam, H₂O

Finally, we shall determin the volume as follow:

At standard temperature and pressure (STP),

1 mole of H₂O = 22.4 L

Therefore,

0.8 moles of H₂O = (0.8 mole × 22.4 L) / 1 mole

0.8 moles of H₂O = 17.92 L

Thus, we can conclude that the volume produced is 17.92 L

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Hi im not sure but there you go . hope its helpful and good luck:)

both H2S2(g) and H2S2(l). A less ordered state of matter has a larger entropy than one that is more ordered (gas greater than liquid, gas greater than solid, and liquid greater than solid).

H2S2 (g) > H2S2 (l) 2. a. CsBr (s) b. SrO (s) (s). SrO and CsBr are two-atom (and thus, linear) molecules. SrO should have lower entropy since Cs and Br have heavier atomic masses than Sr and O, respectively.

(s) CsBr > (s) SrO (s)3. lH2O and bH2O2 (l)b. H2O2 (l) > H2O (l) due to H2O2's higher level of unpredictability compared to H2O4. SO3 (g) and SO3 (b) (s)SO3 (g) > SO3 (s)Considering that gas has a higher entropy than solid.Because of this, the substance with the lower molar mass will have a higher entropy. The single hydrogen molecule in gas has the highest entropy, we can thus conclude in the final analysis.

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Answer:

yes

Explanation:

Answer:

i say yes, because the salt helps to melt the road a little, and my brain says that is a chemical reaction

Explanation:

Answer:

Nuclear power plants use heat produced during nuclear fission to heat water. In nuclear fission, atoms are split apart to form smaller atoms, releasing energy. Fission takes place inside the reactor of a nuclear power plant. At the center of the reactor is the core, which contains uranium fuel

Explanation:

Thale balanced half-reaction of aqueous Vanadium to solid Vanadium is  

V⁵⁺ + 3e- → V(s)

The reduction of vanadium(V) cations to solid vanadium involve the transfer of three electrons to vanadium cations, leading to a net reduction of the cations. Vanadium is a transition metal and is located in the fifth period of the periodic table.

Due to its electron configuration, vanadium has five valence electrons and can form five covalent bonds with other atoms. In the aqueous form, vanadium(V) cations have a charge of +5, which is due to the five electrons that it has lost.

In order for the reduction of vanadium(V) cations to solid vanadium to take place, three electrons must be transferred to the vanadium cations. This results in a balanced half-reaction, which can be written as

V⁵⁺ + 3e- → V(s)

The three electrons that are donated to the vanadium cations reduce the cations from a +5 charge to a neutral charge, resulting in the formation of solid vanadium.

The reduction of vanadium(V) cations to solid vanadium is an important process in many industrial and chemical applications.

Vanadium is often used to produce alloys and is used in the production of steel. It is also used as a catalyst in the production of sulfuric acid and is used in the production of dyes and inks.

The reduction of vanadium(V) cations to solid vanadium are also important in biological systems, as vanadium is an essential trace element for some organisms.

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which experiment please involve a clip

The concentration of the hydroxide ion is 0.005 M but the pH of the solution is 11.7.

We know that the pH has to do with the concentration of the hydrogen ions that is present in the solution. In this case, we would have to set up the pOH of the solution in order to obtain what is  required.

We have to set up the ICE table as shown below;

         \(CH_{3} NH_{2}\)(aq) +  \(H_{2} O\)(l) ⇔  \(CH_{3} NH_{3} ^+\)(aq)    +       \(OH^-\)(aq)

I           0.060                                    0                           0

C             -x                                         +x                         +x

E          0.060  - x                              x                             x

We need to use the Kb to obtain x

Kb = [ \(CH_{3} NH_{3} ^+\)] [ \(OH^-\)]/[  \(CH_{3} NH_{2}\)]

=4.4 * 10-4 = x^2/  0.060  - x

4.4 * 10-4   (0.060  - x) = x^2

2.64 * 10^-5 - 4.4 * 10-4x = x^2

Then we form a quadratic equation and solve it.

x^2 +  4.4 * 10^-4x - 2.64 * 10^-5 = 0

x=0.005 M

Now the pOH = - log(0.005 M)

pOH = 2.3

pH = 14 - 2.3

= 11.7

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Answer:

Within the visible spectrum, red light has the longest wavelength.

Hope that helps! :)

Explanation:

The ideal gas law formula is used to determine the missing values in questions. When dealing with problems that require solving for missing values using the ideal gas law formula, always ensure that all values are expressed in the correct units and temperature is converted to kelvin.

The ideal gas law formula is represented as PV = nRT, where P represents pressure, V represents volume, n represents the number of moles of gas, T represents the temperature in kelvin, and R represents the universal gas constant. Solve for missing values using the ideal gas law formula:1. 10°C, 5. 5 L, 2 mol, __ atm.The temperature must be converted to kelvin first: T(K) = T(°C) + 273.15K = 10°C + 273.15 = 283.15KPV = nRT

Rearrange the equation to isolate P: P = nRT / V

Substitute the given values:

P = (2 mol)(0.0821 L•atm/mol•K)(283.15K) / 5.5 L

: P = 8.28 atm

2. __ °C, 8. 3 L, 5 mol, 1. 8 atm.The equation PV = nRT can be rearranged to T = PV / nRThe temperature must be converted to kelvin first: T(K) = T(°C) + 273.15T = PV / nR

Substitute the given values: T = (1.8 atm)(8.3 L) / (5 mol)(0.0821 L•atm/mol•K)T(K) = T +

: T = 332 K or 59°C

The temperature must be converted to kelvin first:

T(K) = T(°C) + 273.15K

= 12°C + 273.15

= 285.15

KPV = nRT

Solve for n by rearranging the equation: n = PV / RT

Substitute the given values: n = (1.2 atm)(3.4 L) / (0.0821 L•atm/mol•K)(285.15K): n = 0.141 mol

The ideal gas law formula is used to determine the missing values in questions. When dealing with problems that require solving for missing values using the ideal gas law formula, always ensure that all values are expressed in the correct units and temperature is converted to kelvin.

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Answer:

Explanation:correct because the chlorine can make it change so the soulation is dissloving

A molecule's structure is likely to contain numerous double bonds, triple bonds, or rings if it has four unsaturation components. These unsaturations may be connected to different functional entities or structural elements.

The following functional groupings or structural elements could be present:

Quatre double bonds. One ring and two double bonds, such as an aromatic molecule or cycloalkene One ring and one triple bond, such as an aromatic compound with an alkyne

Four rings, such as those seen in polycyclic aromatic hydrocarbons

In the proton NMR spectrum, there are peaks between 7.0 and 8.0 ppm that are often connected to aromatic protons. In this chemical shift area, aromatic compounds, such as benzene derivatives or other aromatic rings, frequently display proton signals.

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--The complete Question is, If a molecule contains 4 elements of unsaturation, what functional groups or structural features might be present in the molecule, and what would be the likely interpretation of the peaks observed between 7.0 - 8.0 ppm in the proton NMR spectrum?--

Answer:

False

Explanation:

youre welcome

Answer:

Q1: Sodium metal reacts with water to produce hydrogen gas.

What best describes this reaction?

A: A single replacement reaction takes place because sodium is more reactive than hydrogen.

Q2:When Pb and AlCl3 react together, lead (Pb) can replace aluminum (Al) in the compound because lead is lower on the activity series.

A: False

Q3:When HNO3 and Au are mixed together, what do you expect to happen, and why?

A:No reaction, because Au is lower on the activity series and cannot replace H

Q4:Which of the following is a double replacement reaction?

A:Ca(OH)2 + H2SO4 → CaSO4 + 2H2O

Q5:The table shows the nature of reactants and products formed in a certain type of chemical reaction.

Nature of Reactants and Products

Reactants Products

Nonmetal + Ionic compound Nonmetal + Ionic compound

Which of the following is true about the type of chemical reaction?

A:It is a single replacement reaction, and the anions in the two ionic compounds are different.

Q6:A double replacement reaction is a reaction in which one element replaces a similar element within a compound.

A: False

Answer:

hot object to cold object

The aqueous solutions can be arranged in increasing boiling point order as follows: 0.050m Al(ClO4)3 < 0.110m K2CO3 < 0.300m C6H12O6.

The boiling point of a solution is influenced by the concentration of solute particles in the solution. The greater the concentration of solute particles, the higher the boiling point. In this case, we are comparing the boiling points of three different aqueous solutions.

The solution with the lowest boiling point is 0.050m Al(ClO4)3. This is because Al(ClO4)3 is an ionic compound that dissociates into multiple ions in water, thereby increasing the number of solute particles. Higher concentration of solute particles raises the boiling point.

The solution with the next higher boiling point is 0.110m K2CO3. K2CO3 is also an ionic compound and dissociates into two ions in water. Although the concentration is higher compared to Al(ClO4)3, it is lower than that of C6H12O6.

The solution with the highest boiling point is 0.300m C6H12O6. C6H12O6, which is glucose, is a molecular compound and does not dissociate into ions in water. Therefore, it has the lowest concentration of solute particles among the given solutions, resulting in the lowest boiling point.

Hence, the correct order of increasing boiling points is 0.050m Al(ClO4)3 < 0.110m K2CO3 < 0.300m C6H12O6.

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Answer: Either b or c or d. More information is needed to answer the question.

Therefore, the pH of the acid solution after adding 15.00 mL of sodium hydroxide as the titrant is 3.56. Option c is Correct.

Here pH = -log [HA]

here pH is the pH of the solution, [HA] is the concentration of the acid in moles per liter, and Kw is the dissociation constant of the acid in the solution.

Using the given values, we can calculate the concentration of the acid and the concentration of the sodium hydroxide in the solution. The concentration of the acid can be calculated as follows:

[HA] = 0.0350 M * 0.500 L = 0.1725 M

The concentration of the sodium hydroxide can be calculated as follows:

[NaOH] = 0.0209 M * 0.500 L = 0.1018 M

The concentration of the sodium hydroxide can be calculated as follows:

[OH-] = [HA] - [NaOH] = 0.1725 M - 0.1018 M = 0.0707 M

The concentration of the sodium hydroxide can be calculated as follows:

[OH-] = [HA] - [NaOH] = 0.1725 M - 0.1018 M = 0.0707 M

The pH can be calculated using the equation:

pH = -log [HA]

= -log [0.1725 M] - log [0.1018 M]

= 4.73 - 0.67

= 3.56

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Answer:

Detail is given below.

Explanation:

1) Chemical change cannot be undone or reversed.

The given statement is correct. Because,

Chemical change:

The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.

These changes are irreversible .

Example:

Combustion of fuel or wood: that oil or wood convert into energy, CO2 and ash in case of wood  and this reaction can not be reversed.

2) Physical change often cannot be undone or reversed.

The given statement is incorrect.

Physical Change                                                                                              

The changes that occur only due to change in shape or physical properties but their chemical or internal composition remain unchanged.  

These changes were reversible.

Example :

Water converting to Ice

Water converting to gas

3) In chemical change, you end up with the same substance you started with

The given statement is incorrect. Consider the following example.

The reaction of Hydrogen and oxygen:

H₂ (g)  + O₂  (g) -------------------------------------> 2H₂O  (l)

A totally new compound is formed when oxygen and hydrogen are undergo reaction which is water.

4) In physical change, particles of 2 or more substances rearrange to form new or different substance.

The given statement is incorrect.

When particles rearrange them selves the different substance is not formed. Consider the example of water when it converted into ice or vapors. Only phase is changed but water retain its properties so new substance is not formed.

According to stoichiometry as 162.955 g of phosphorous pentanitride has 92.919 g of phosphorous , thus 245 g of phosphorous pentanitride   will have 139.7 grams of phosphorous.

Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is important as it helps the chemical reactions to obey law of conservation of mass.

As  162.955 g of phosphorous pentanitride=92.919 g of phosphorous

∴ 245 g of phosphorous pentanitride   =245×92.919/162.955=139.702 g.

Thus, 139.702 g  of phosphorus can be recovered from 245.0 g triphosphorus pentanitride.

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Answer:

Sep by step to determine the mass of 25 mL of orange juice

Explanation:

Measure mass of container , then add 25 mL of OJ and subtract the difference

The enthalpy of the reaction is 14 J/mol.

The enthalpy of a reaction (ΔH) is the amount of energy transferred between a system and its surroundings during a chemical reaction at constant pressure, measured in joules per mole (J/mol). This value is important because it can tell us whether a reaction is exothermic or endothermic, as well as give us information about the strength of chemical bonds within the reactants and products.To calculate the enthalpy of a reaction, we need to know the amount of energy released or absorbed (Q) and the number of moles of the compound involved in the reaction (n). We can use the equation:
ΔH = Q/n
Given that 6 moles of a compound produce 84 J of energy, we can calculate the enthalpy of the reaction as follows:
ΔH = Q/n
ΔH = 84 J / 6 mol
ΔH = 14 J/mol
This means that for every mole of the compound involved in the reaction, 14 J of energy is transferred between the system and the surroundings. Since the value is positive, we can conclude that the reaction is endothermic, meaning that it requires an input of energy to occur.It is worth noting that the enthalpy of a reaction can depend on a number of factors, such as temperature, pressure, and the specific conditions under which the reaction occurs. As such, it is important to take these factors into account when calculating or predicting enthalpy values.

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To maximize the volume of the swimming pool while keeping the sum of dimensions at 40 ft, and with the length being two times the width, we can use the given relative maximum point (8.9, 2106).

Using the formula for the volume of a rectangular prism, we can find the width, length, and depth of the pool.

Based on the calculations, the width of the pool is approximately 8.9 ft, and the length is approximately 21.1 ft. Therefore, the length of the pool is approximately 21.1 feet.

If x is the width of the pool, then the length must be 2x.
The sum of the dimensions is given as 40 ft, so we can set up the equation:
x + 2x + h = 40
where h is the height of the pool. Solving for h, we get:
h = 40 - 3x
The volume of the pool is given by:
V = lwh
Substituting in the values for l, w, and h, we get:
V = (2x)(x)(40 - 3x)
Expanding and simplifying this expression, we get:
V = -6x^3 + 80x^2
To find the relative maximum, we need to take the derivative of V with respect to x:
dV/dx = -18x^2 + 160x
Setting this equal to zero and solving for x, we get:
x = 8.89
This is the width of the pool at the relative maximum volume. To find the length, we can use the fact that the length is 2x:
length = 2(8.89) = 17.78 ft
Therefore, the length of the pool is 17.78 feet.

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