describe the differences between electron transfers involving organic molecules that act as electron carriers (nad /nadh, fad/fadh2, q/qh2) and transfers involving the metals that act as electron carriers (fe2 /fe3 , cu /cu 2) in electron transport

Answer:

1.2.6.4.8, in order top to bottom

Explanation:

Answer:

if you want to order them from top to bottom then the order would be 1,2,6,4,8 I think.

Explanation:

The solution prepared by the adding the 2.70 g of acetic acid to the 122.8 g of the water . the percent by mass of the acetic acid in solution is  2.15 %.

given that :

mass of acetic acid = 2.70 g

mass of the water = 122.8 g

the mass of the solution = 2.70 g + 122.8 g

                                        = 125.5 g

the percent by mass of the acetic is given below :

percent by mass  =( mass of the acetic acid / mass of solution ) × 100 %

percent by mass = (2.70 / 125.5 ) × 100 %

percent by mass = 2.15 %

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0.6 moles  of mno4- ions reacted with the given amount of oxalic acid solution.

Oxalic acid had completely been consumed when KMnO4 is supplied, and the emergence of a pink colour indicates the reaction's end point, which is caused either by introduction of a small excess of KMnO4. As an ego, KMnO4 is used.  An ion is an atom or collection of atoms where the number of electrons and the number of protons are different. A positive ion, also known as a cation, is a particle that occurs when the amount of electrons exceeds the number of protons. Ions are electrically charged particles that can be produced either by taking electrons away from neutral atoms to produce positive ions or adding electrons to neutral atoms to produce negatively charged ions.

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Answer:

1031.85 grams

Explanation:

Further explanation

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When table salt (sodium chloride which ionizes into Na and Cl) is added to alginate, a gel does not form and spherification does not occur. This happens because the salt only has one positive charge that neutralizes the negative charge in the alginate.

There are various types of Spherification. Spherification is the creation of small spheres with a thin film on the surface and a liquid center. The process of spherification is mostly used in molecular gastronomy to make small, flavorful balls of liquid ingredients that burst in the mouth when bitten into. The method involves a process of encapsulating liquid droplets in a sphere made of a gel-like film. This process requires sodium alginate (E401), a gel-forming ingredient that thickens the liquids.

Sodium alginate gelation occurs as a result of the mixture of an alginate solution with a cation solution that causes the solution to gel. The sodium ions present in the solution swap with calcium ions present in the cation solution, causing a gel to form. This occurs as a result of a chemical reaction known as cross-linking. When table salt is added to the alginate solution, a gel does not form and spherification does not occur since the salt only has one positive charge that neutralizes the negative charge in the alginate. Alginate requires a doubly charged cation to cross-link.

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Drinking water should have sufficiently low levels of dissolved salts to prevent disease.

Water contains dissolved salts which provide taste to water for drinking purposes. Also these salts are essential for growth and development of plants. These dissolved salts provide the essential minerals which are required for growth of body.

A dissolved salt disappears within a solution, so you can't see what it looks like. For example, when table salt dissolves in water, the Na+ and Cl- ions that form it dissociate and the ions float freely in water. You can no longer see the individual salt grains.

The two largest dissolved components of typical seawater are chlorine (56% of total) and sodium (31% of total), with the total of all lumped under the designation of “salts.”

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Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

\(n = \frac{N}{L} \\\)

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

\(n = \frac{8.94 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 14.850498\)

We have the final answer as

Hope this helps you

Answer :

Charles's Law : It is defined as the volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

Mathematically,

\(V\propto T\)

                                Boiling water bath        Cool bath 1       Cool bath 2

Temperature (⁰C)                  99                              17                       2

Temperature (K)(T)    273+99=372             273+17=290      273+2=275

Volume of water                  0.0                             27.0                34.0

in cool flask (mL)

Volume of water=              135.8                           135.8               135.8

Air in flask (mL)

Volume of air                    135.8                           108.8               101.8

in cool flask (V)

\(\frac{V}{T}\)                                \(\frac{135.8}{372}=0.365\)             \(\frac{108.8}{290}=0.375\)         \(\frac{101.8}{275}=0.370\)

The graph volume versus temperature for a gas is shown below.

Water and peroxide are two common liquids that are formed with atoms of hydrogen and oxygen. Both of these substances are made of hydrogen and oxygen, but the makeup of the two substances is different.Water is a chemical compound that consists of two atoms of hydrogen and one atom of oxygen, known as H2O.

Hydrogen bonding is the force that binds hydrogen and oxygen atoms together in water. Water has a very high heat capacity, making it an excellent conductor of heat.Peroxide is a chemical compound that is composed of two hydrogen atoms and two oxygen atoms, known as H2O2. Peroxide is a very strong oxidizer, and it decomposes into water and oxygen when heated. Peroxide is an effective disinfectant, and it is commonly used as a bleaching agent. Peroxide is also used as a rocket fuel in spacecraft.The main difference between water and peroxide is their chemical makeup. Water has two hydrogen atoms and one oxygen atom, while peroxide has two hydrogen atoms and two oxygen atoms. This difference in the number of oxygen atoms gives peroxide its unique properties, such as its strong oxidizing power.

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Explanation:

the equation is yes a the line of jointing line passing the ball to is

At a pressure of 40 atm, the gas's new volume will be 2.5 L. As a result, choice (D) is the right one.

Describe Boyle's law.

According to Boyle's law, the pressure a given mass of gas exerts at a given temperature is inversely proportional to the volume that it occupies.

If the temperature remains constant, the relationship between the pressure and volume is inverse.

P ∝ 1/V

or

P₁V₁ = P₂V₂ ................(1) (1)

Given that the gas's starting pressure is P1 = 10 atm

The gas's ultimate pressure, P2, is 40 atm.

The gas's initial volume, V1, is equal to 10 L.

Replace the volume and pressure numbers in equation (1);

(40 atm) V2 = (10 atm) (10 L)

V₂ = 100/4

V₂ = 2.5 L

Consequently, the gas's new volume will be 2.5 L. 40 atm of pressure is increased,

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Answer: A-, NA+ And OH-

Explanation: Thank me later

Answer: The amount of heat absorbed is 141.004 kJ.

Explanation:

In order to calculate the amount of heat released while converting given amount of steam (gaseous state) to ice (solid state), few processes are involved:

(1): \(H_2O (s) (-25^oC, 248K) \rightleftharpoons H_2O(s) (0^oC,273K)\)

(2): \(H_2O (s) (0^oC, 273K) \rightleftharpoons H_2O(l) (0^oC,273K)\)  

(3): \(H_2O (l) (0^oC, 273K) \rightleftharpoons H_2O(l) (100^oC,373K)\)

(4): \(H_2O (l) (100^oC, 373K) \rightleftharpoons H_2O(g) (100^oC,373K)\)

Calculating the heat absorbed for the process having the same temperature:

\(q=m\times \Delta H_{(f , v)}\)       ......(i)

where,

q is the amount of heat absorbed, m is the mass of sample and \(\Delta H_{(f , v)}\) is the enthalpy of fusion or vaporization

Calculating the heat released for the process having different temperature:

\(q=m\times C_{s,l}\times (T_2-T_1)\)      ......(ii)

where,

\(C_{s,l}\) = specific heat of solid or liquid

\(T_2\text{ and }T_1\) are final and initial temperatures respectively

We are given:

\(m=46g\\C=2.108J/g^oC\\T_2=0^oC\\T_1=-25^oC\)

Putting values in equation (i), we get:

\(q_1=46g\times 2.108J/g^oC\times (0-(-25))\\\\q_1=2424.2J\)

We are given:

\(m=46g\\\Delta H_{fusion}=334J/g\)

Putting values in equation (i), we get:

\(q_2=46g\times 334J/g\\\\q_2=15364J\)

We are given:

\(m=46g\\C=4.186J/g^oC\\T_2=100^oC\\T_1=0^oC\)

Putting values in equation (i), we get:

\(q_3=46g\times 4.186J/g^oC\times (100-0)\\\\q_3=19255.6J\)

We are given:

\(m=46g\\\Delta H_{vap}=2260J/g\)

Putting values in equation (i), we get:

\(q_4=46g\times 2260J/g\\\\q_4=103960J\)

Calculating the total amount of heat released:

\(Q=q_1+q_2+q_3+q_4\)

\(Q=[(2424.2)+(15364)+(19255.6)+(103960)]\)

\(Q=141003.8J=141.004kJ\)                  (Conversion factor: 1 kJ = 1000J)

Hence, the amount of heat absorbed is 141.004 kJ.

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The mass number of an atom of potassium that has 20 neutrons is option C. 39

Mass number-

Mass number is the total number of protons and neutrons in the nucleus of an atom is called the mass number. It is represented by the symbol A. In other words, mass number refers to the sum of the number of protons and neutrons in the nucleus of an atom.

Atom-

Atoms are tiny particles that make up everything in the world. Everything in the world is made up of tiny particles known as atoms. An atom is the basic unit of matter. The term "atom" comes from the Greek word atomos, which means indivisible.

The basic building blocks of all matter are atoms, which are made up of three types of particles: protons, neutrons, and electrons.

In a neutral atom, the number of electrons is equal to the number of protons, thus the overall charge on the atom is zero. However, the mass number of the atom is equal to the sum of the number of protons and neutrons.

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Answer: 340°C

Explanation: To calculate the temperature we have a formula:

                                      q=mcΔT-------------(1)

Given that q=2.50kJ

                  m=22.0g

                   c=0.385J/g°C

                    T1=45°C

ΔT=change in Temperature(T2-T1)

Now calculate the temp substitute these values in  euation(1)

                    2.50= (22.0*0.385)(x-45)

                      2.50 = 8.47(T2-45)

                     2.50=8.47T2-381  

                      T2=340°C

Hence,the final temperature of cu ic 340°C

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The organic material dissolved in the aqueous phase because it is polar in nature and readily soluble in polar solvents like water.

The reaction was probably exothermic, meaning it released heat energy. As the reaction progressed and heat was generated, the solubility of the organic material in water was enhanced, allowing it to dissolve more readily. These factors together allowed the organic material to dissolve in the aqueous phase.

So, the organic material dissolved in the aqueous phase because it is polar in nature and readily soluble in polar solvents like water.

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Answer:  the empirical formula of potassium persulfate is KSO₄, and its molecular formula is K₂S₂O₇.

Explanation:  the empirical formula of potassium persulfate is KSO₄, and its molecular formula is K₂S₂O₇.

Given the equation :

CH3OH +Cl2 →← 2 CH3CL + 2OH ^-1

at equilibrium concentration, we have:

(1.5 -2x )/ 5L + (1.0 -x )/5L =2x /5L + 2x /5L

→ (1.5-2x+ 1 -x )/ 5L = 4x /5L

→(0.5 -3x)/5L = 4x/5L (5L in the Left hand side cancels 5L inthe right hand side)

→ 0.5 = 4x +3x

0.5 = 7x

x = 0.5/7

x = 0.071

( Extra note : Now lets test and see if this balances ):

LHS : (1.5 -2x )/ 5L + (1.0 -x )/5L = 0.5 -3x)/5L

= 0.5 - 3(0.071)/5

= 0.287 /5 = 0.05

RHS :4(x) /5 = 4(0.071) /5

= 0.28/5 = 0.05

at equlibrium , LHS = RHS therefore our x value is 0.07

IBUPROFEN-400MG + PARACETAMOL-325MG is the scientific name Flexon.

Flexon is the trademark for a shape memory alloy of titanium that is used to make eyeglass frames.

The metal alloy used by Flexon in their eyewear was actually destined for a very different path when, in 1961, US Naval Scientists creating a missile heat shield discovered that the alloy they were using automatically returned to its original shape, even after being hit by a hammer.

Flexon is the trademarked name for a special material that is used to make frames for spectacles. It is light and extremely flexible. If it is bent it will 'remember' its original shape and return to it.

Flexon eyeglasses are all made of memory metal titanium.

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Answer:

Matter or energy can change from one form to the other

Explanation:

The law of conservation of energy states that energy can neither be created nor destroyed but can only be transformed i.e. changed from one form to another. For example, mechanical energy can be changed to electrical energy.

Likewise, the law of conservation of mass/matter states that matter can not be destroyed or created but can change via physical or chemical means to conserve it. For example, matter can change from liquid state to gaseous state.

From the above two laws, it can be said that "matter or energy can change from one form to the other".

Answer:

Gases have the highest kinetic energy, followed by liquids, and then solids.

Explanation:

How does the kinetic energy of solids, liquid, and gases compare ?

Higher kinetic energy causes particles to vibrate or move around faster. Solids have the lowest kinetic energy so vibrate very little.

Liquids have more kinetic energy so particles slide past each other.

Gases have the most kinetic energy so fly around in the air.

Answer:

C

Explanation:

you can relate this with their temprature, more kinetic energy means more movement of molecules. This creates heat which then melts or vaporizes substances. So, as K.E increases a substance will change from solid to liquid and eventually gas.

Answer:

Proteins consist of a chain of some combination of 20 unique amino acids.

Explanation:

Proteins consist of a chain of some combination of 20 unique amino acids. These amino acids are the building blocks of proteins and are connected together through peptide bonds. The specific sequence and arrangement of amino acids in a protein chain determine its structure and function. Each amino acid has a unique side chain, which gives it distinct chemical properties. The variety of amino acids and their different properties allow for the immense diversity and complexity of proteins, enabling them to carry out a wide range of biological functions in living organisms.

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There are 6.4 × 10⁻¹⁵ Coulombs in 4 × 10⁴ electrons.

To convert the number of electrons to coulombs, we need to first multiply the number of electrons by the charge of a single electron

No. of electrons × Charge of single electron

Charge of single electron = 1.6 × 10⁻¹⁹ coulombs

Calculating using the above formula

we get: 4 × 10^4 electrons × 1.6 × 10⁻¹⁹ C/electron = 6.4 × 10⁻¹⁵ Coulombs

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a) 2Na₂N → 2Na + N₂ reaction type combination reaction.

b) H₃PO₄ +3KOH → K₃PO₄ + 3H₂O reaction type double-Replacement Reaction.

c) N₂ + 3H₂ → 2NH₃ reaction type combination reaction.

d) 2H₂O₂ → O₂ + 2H₂O reaction type combination reaction.

e) Zn + 2HCl  → ZnCl₂ + H₂ reaction type displacement reaction.

f) C₂H₆ + 7O₂  → 2CO₂ + 3H₂O reaction type combustion reaction.

g) CuCl₂ + H₂S  → CuS + 2HCl reaction type double displacement reaction.

The reaction arrow's left and right sides of a balanced equation have an equal number of each type of atom. The products go on the right side of the arrow when writing a balanced equation, and the reactants go on the left.

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A gas occupies a volume of 14. 5 L at 230 K. Option (C), 17.4 K will the temperature be it the gas expands to 21.8 L.

The relationship between the temperature, volume, and pressure of a gas is described by the ideal gas law, PV = nRT, where P is the pressure, V is the volume. We are given the initial volume and temperature of the gas and we are asked to find the final temperature when the gas expands to a different volume. The ideal gas law is an equation of state of a gas, which describes the relationship between the pressure, volume, and temperature of a gas. We are given V1, T1, and V2. The number of moles and pressure are not given so we can consider them constants.

The equation is :

V1/T1 = V2/T2

T2 = T1(V1/V2)

T2 = 230 K (14.5L / 21.8L) = 17.4 K

So the temperature will be 17.4 K if the gas expands to 21.8L.

Therefore, the correct answer is 17.4 K (Option C).

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This problem can be solved using Boyle's law:p1v1=p2v2

so 5.23*214=796*v2 v2=(5.23*214)/796=1.4L