what is the fuel value of ethane, c2h6, in kilojoules per gram of ethane?

The flow of electrons during this process stage Pushing Instructions for Arrows.

[tex]$$\mathrm{X} \mathrm{OH} \mathrm{OH}\mathrm{H}_3 \mathrm{C} \mathrm{HaCl}_3 \mathrm{CH}_3$[/tex]

To depict how electrons are moving throughout this stage of the process, draw curving arrows.

The mobility of an electron during a bond-making or bond-breaking process is depicted by curved arrows. The location of the electron or electron pair's origin is shown by the foot of the arrow, and their destination is indicated by the head of the arrow.

The shorthand for describing how electrons are moving in a process is "arrow pushing." The electron-rich chemical serves as the starting point for an arrow, while the electron-deficient compound serves as its destination.

A negatively charged subatomic particle known as an electron can either be free or attached to an atom. One of the three main types of particles inside an atom, along with protons and neutrons, is an electron that is linked to the atom. Protons, neutrons, and electrons collectively

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The decreasing order of electronegativity is Cl > Cu > C > Ca > Cs.

The ability of an element to draw electrons to itself when it is chemically connected to another element is known as its electronegativity. Electrons will typically be attracted to elements with higher electronegativities, which will result in increased electronegativity. Pauling Electronegativity Scale is used to determine the order of the elements.

An atom's capacity to attract shared-pair electrons to itself within a molecule is referred to as electronegativity in chemistry. Atoms on the left and right sides of the periodic table have varying degrees of electronegativity.

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The ideal gas law and the equation for the mole may be used to compute the mole fraction and partial pressure.

The definition of ideal gases states that they are hypothetical gases that may be used to simulate the behaviour of actual gases. Individual gaseous particles must have no volume and neither be attracted to nor repelled by one another in order for it to be termed perfect. The ideal gas law is referred to as,

PV = n RT

Consider the scenario where 18.0g of carbon monoxide and 10.6g of chlorine pentafluoride gas are added to a 6.000L tank at 19.2°C.

CO mole = 18/28 = 0.6428

mole ClF5 is equal to 10.6/130.445, or 0.081260.

then

mole total is 0.081260 + 0.6428 = 0.72406 mole.

PV = n RT

P = n RT/V equals (0.72406) (0.082) (19.2+273) / (6) = 2.89146 atm.

Mole fraction CO is equal to 0.6428/0.72406, or 0.8877.

CO has a partial pressure of 2.5667 atm (0.8877 * 2.89146).

CF5's mole fraction is 1-0.8877 = 0.1123.

CF5 has a partial pressure of = 0.1123*2.89146= 0.32471 atm,

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Note: The correct question would be as bellow,

A tank at is filled with of carbon monoxide gas and of chlorine pentafluoride gas. you can assume both gases behave as ideal gases under these conditions. calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. be sure your answers have the correct number of significant digits. carbon monoxide mole fraction: partial pressure: chlorine pentafluoride mole fraction: partial pressure: total pressure in tank:

Ideal gas equation is used that relates the pressure, temperature, volume and number of moles of a gas, the given parameters' that are asked solved in the below section.

Ideal gases are hypothetical gases that may be used to simulate the behavior's of actual gases.  The ideal gas law can be expressed as follows,

PV = n RT

Consider the scenario where 18.0g of carbon monoxide and 10.6g of chlorine pentafluoride gas are added to a 6.000L tank at 19.2°C.

CO mole = 18/28 = 0.6428

Mole ClF5 is equal to 10.6/130.445, or 0.081260.

then

Total number of moles= 0.081260 + 0.6428 = 0.72406 mole.

PV = n RT

P = n RT/V equals (0.72406) (0.082) (19.2+273) / (6) = 2.89146 atm.

Mole fraction CO is equal to 0.6428/0.72406, or 0.8877.

CO has a partial pressure of 2.5667 atm (0.8877 * 2.89146).

CF5's mole fraction is 1-0.8877 = 0.1123.

CF5 has a partial pressure of = 0.1123*2.89146= 0.32471 atm,

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Complete question-

A tank at is filled with of carbon monoxide gas and of chlorine pentafluoride gas. you can assume both gases behave as ideal gases under these conditions. calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. be sure your answers have the correct number of significant digits. carbon monoxide mole fraction: partial pressure: chlorine pentafluoride mole fraction: partial pressure: total pressure in tank.

The bond line and condensed formulae for 3-methyloctane are provided below.

Pentane is an alkane that has a methyl group replaced at position 3 to make 3-methylpentane. It serves as a lubricant, a solvent in the synthesis of organic compounds, and a starting point for the production of carbon black. It serves as an allelochemical, a non-polar solvent, and a human metabolite.

Condensed structural formula: This is a formula where the atoms are also shown and no lines are used to indicate where bonded atoms are located. Straight lines are used to write it.

The line-angle formula, also known as the bond line formula, represents the carbon atoms at the corners and ends of the lines with an angle while concealing the hydrogen atoms. Below are the bond line and condensed formulas for 3-methyloctane.

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The type of hurricane is expected to strike more frequently this century will be Category 4 + 5C.

One of nature's most potent storms is the hurricane. They cause tornadoes, rip currents, and inland flooding by way of strong winds, storm surge flooding, and heavy rainfall.

Hurricanes are storms with maximum sustained winds of 74 mph or higher. Based on a hurricane's maximum sustained winds, the Saffir-Simpson Hurricane Wind Scale assigns a hurricane a rating, or category, from 1 to 5.

Strong winds, a spiral arrangement of thunderstorms that produce heavy rain and squalls, a low-pressure center, and a closed low-level atmospheric circulation are the characteristics of a tropical cyclone, a rapidly rotating storm system.

In this case, the chart shows how climate change and rising ocean temperatures might affect the types of hurricanes we see this century and the bars show the results from different math models used to make the predictions. hurricane is expected to strike more frequently this century will be Category 4 + 5C. This can be seen in the diagram.

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The chart shows how climate change and rising ocean temperatures might affect the types of hurricanes we see this century. The bars show the results from different math models used to make the predictions.

Category 1 includes the least powerful hurricanes. Categories 2 and 3 are moderate hurricanes. Categories 4 and 5 include the most powerful hurricanes.

A. Which type of hurricane is expected to strike more frequently this century

We can use Charles's Law which states that volume and temperature are directly proportional when the pressure and other variable are constant. when temperature increases, the volume of the gas also increases and vise versa.

The new volume it will occupy is 308.72 ml

What is meant by Volume ?

V₂ = V₁T₂/ T₁

   = 250 ml × 368 K / 298 K

   = 92,000 ml.K / 298 K

   = 308.72 ml

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The combinations of names and formulas of ions that is incorrect is NO2- nitrate.

An ion is an atom or molecule with a charge because it has a different amount of electrons than protons. Any atom or group of atoms with one or more positive or negative electrical charges is referred to as an ion. An ion is an electrically charged atom (or collection of atoms). It is generated when an atom loses or gains an electron. Ions are classified into two types: cations and anions. When a sodium atom loses one electron, a sodium ion (Na+) is created. A cation is a sodium ion.

Here,

NO2- nitrate is an erroneous combination of ion names and formulae.

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Exothermic reaction (or exergonic but that is used less often)

The law of conservation of matter states that d. matter cannot be created or destroyed.

The law of conservation of matter is a model well sustained by scientific evidence which indicated that matter and energy are interchangeable but they can't be created or destroyed under any type of circumstance in space.

Therefore, with this data, we can see that the law of conservation of matter indicated it is unique and therefore cannot be created in the universe under normal conditions.

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Answer: The molecular formula of ethyl ether is the same as its empirical formula.

Explanation:

The pressure of a given mass of an ideal gas is inversely proportional to volume at constant temperature, according to Boyle's law.

P1V1 = P2V2 = (600mmhg*100.0ml = 800mmhg*V2)

The volume of the gas at a pressure of 800 mm Hg is 75 mL.

This empirical relationship, which Robert Boyle, a scientist, first proposed in 1662, argues that, under constant temperature, the pressure (p) of a given amount of gas changes inversely with its volume (v); in equation form, this means that pv = k, a constant.

According to Boyle's Law, as pressure lowers, gas volume grows. According to Charles' Law, when the temperature rises, the volume of the gas also rises.

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All of the above are used for energy storage  of the following carbohydrates would NOT be a molecule used for energy storage

Proteins do not function as molecules that store energy. Storage lipids, fat and oil are hydrocarbon compounds that, when oxidized, release a tremendous amount of energy.

In plants, starch is used to store energy. Glycogen is a glucose monomer-based polysaccharide that is even more heavily branched and used by animals as a form of energy storage. The cells of the liver and muscles are where glycogen is predominantly produced and stored.

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The number of orbitals is five, and ml=2 refers to the last (fifth) orbital space 4d.

Quantum numbers are used in quantum physics and chemistry to explain the values of conserved quantities in the dynamics of a quantum system. Quantum numbers are the collection of numbers used to characterize the location and energy of an electron in an atom. There are four types of quantum numbers: primary, azimuthal, magnetic, and spin. There are four quantum numbers in atoms: the primary quantum number (n), orbital angular momentum quantum number (l), magnetic quantum number (ml), and electron spin quantum number (ms).

Here,

Quantum numbers  (n,l,ml, ms)

n=3. refers to 3rd energy level      

3rd energy level has 3 possible values of l    

d has 5 different orientations

s=0.   p=1.   d=2              

-2,-1,0,1,2

answer- n=3 l=2.  number of orbitals-5

n=4 refers to 4th energy level        

4th level has 4 possible l values      

Repeat from above for d

s=0 p=1 d=2 f=3        

n=4   l=2.  ml=2  

The number of orbitals is 5 and the ml=2 is referring to the last(5th) orbital space 4d.

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Reaction of cyclin, mitotic promoting factor or maturing-promoting factor catalyzes the phosphorylation of receptor superfamily of cyclin-dependent kinases.

They remove diphosphate form proteins is the response that is untrue. Proteins do not lose phosphate groups when they are added by kinases. The enzymes known as phosphatases are in charge of removing phosphate groups off proteins. The other claims made concerning protein kinases are all accurate.

Option d is the erroneous statement. Throughout the cell cycle, CDK levels fluctuate. Throughout the cell cycle, each CDK is present in the same quantity. However, each CDK's activity is reliant on the other.

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The value of the specific rate constant for the reaction is 0.0426 (M/s)^3. To determine the reactant orders, we need to use the initial rate data and the method of initial rates.

The method of initial rates involves changing the concentration of one reactant while keeping the other reactants constant. From the initial rate data, we can see that when [Br1-] is changed, the rate of the reaction changes (experiments 1, 2, and 3). Therefore, the order of Br1- is not zero. When [BrO31-] is changed, the rate of the reaction changes (experiments 2 and 3). Therefore, the order of BrO31- is not zero. When [H1+] is changed, the rate of the reaction changes (experiments 1, 2, and 4). Therefore, the order of H1+ is not zero.

From this, we can conclude that the reactant orders are:

= Order of Br1- = 1

= Order of BrO31- = 1

= Order of H1+ = 1

The rate constant k is the proportionality factor between the rate of the reaction and the concentrations of the reactants. The units of k depend on the reactant orders. Since the overall order of the reaction is the sum of the individual reactant orders, in this case the overall order of the reaction is 1+1+1=3. Therefore, the unit of k is (M/s)^3.

To find the value of the specific rate constant for the reaction, we can use the following equation:

= -d[Br1-]/dt

= k[Br1-][BrO31-][H1+]

By substituting the experimental value of the initial rates, we can find the specific rate constant for the reaction.

= -d[Br1-]/dt

= k[Br1-][BrO31-][H1+]

= 8.10e-03

= k10.1300.1500.270

= k

= 8.10e-03/(10.1300.150*0.270)

= k

= 0.0426

The specific rate constant for the reaction is 0.0426 (M/s)^3. It's worth to mention that the rate constant for the disappearance of Br1- is not the same as the rate constant for the reaction because it only consider the disappearance of one of the reactants, but the rate constant for the reaction consider all the reactants.

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Modifications of the a) formic acid b) acetylsalicylic acid (aspirin) CHa c) citric acid H_O- CH2 CHz' are attached below.

With only one carbon, formic acid is the most basic carboxylic acid. is a useful organic synthetic reagent that naturally occurs in a variety of sources, including the venom of bee and ant stings. used primarily as an antibacterial and preservative in animal feed.

A non-steroidal anti-inflammatory drug (NSAID), aspirin is an acetylated salicylate (acetylsalicylic acid) (NSAIDs). These medicines have a variety of pharmacologic effects, including analgesic, antipyretic, and antiplatelet properties, and they lessen the signs and symptoms of inflammation.

Citric acid is primarily used as a flavouring and preservation agent, especially in soft drinks and candies, due to its acidic, sour taste. As a disinfectant and to stabilise or preserve medicines, it is also used. Lemon juice was the original source of the compound known as citric acid.

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F2 Of The Compounds Below Would Contain Polar Covalent Bonds.

Although there are no strict guidelines, the general rule is that a bond is deemed nonpolar if the difference in electronegativities is less than or equal to 0.4; if the difference is larger than 0.4, the bond is termed polar.

A fluorine molecule with two atoms is this. One covalent link exists because two fluorine atoms share the same valence electron pair. Due to the fact that the atoms are from the same element, the connection is nonpolar.

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Glycine is the only naturally occurring amino acid that is: achiral.

Body requires the amino acid glycine to make proteins, which are necessary for tissue development and maintenance as well as the production of critical compounds like hormones and enzymes.

Two atoms of carbon, five atoms of hydrogen, one atom of nitrogen, and two atoms of oxygen make up the organic molecule glycine. It is one of the 20 amino acids that are frequently found in the proteins of mammals. NH₂-CH₂-COOH is the formula for the chemical compound glycine.

The smallest and most basic amino acid is glycine. The fact that 2-H is connected to the same carbon atom makes it the only amino acid without a chiral carbon. As a result, it is the sole achiral amino acid.

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The number of stages in the mechanism is the easiest method to tell the difference between E1 and E2.

Strong bases support the E2 mechanism while merely a weak base is necessary for the E1 mechanism. 2) The solvent: Effective ionising solvents (polar protics) support the E1 process by stabilising the intermediate carbocation.

The base's composition plays a crucial role in an E2 reaction since it is involved in the step that determines rate. More reactive bases will encourage an E2 reaction.

Steps in the process. Counting the steps in the mechanism is the most straightforward approach to tell E1 from E2 in a system. In contrast to E2, which occurs in a single step without an intermediate step, E1 involves two stages and a carbocation intermediate.

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One peak (single) is visible in the decoupling 13C spectra for each distinct carbon in the molecule.

An analytical chemistry method known as nuclear magnetic resonance (NMR) spectroscopy is used in quality control and research to ascertain a sample's composition and purity as well as its molecular structure. For instance, mixtures containing known substances may be quantitatively analyzed using NMR.

NMR is the abbreviation for nuclear magnetic resonance. An NMR device allows for the investigation of a material's molecular structure by seeing and measuring the interaction of nuclear spins when they are exposed to a high magnetic field.

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The first structure, is the alkane with 7 carbons and two isopropyls groups aside (structure name, 3,4 - diisopropylheptane) and the second below that, would be the one with seven carbons including the isopropyl group counting.

An alkane is a hydrocarbon with the general formula CnH2n+2, where n is the number of carbon atoms. They are also known as saturated hydrocarbons because they contain only single bonds between carbon atoms, and are typically composed of a chain of carbon atoms with hydrogen atoms bonded to them. Alkanes are relatively unreactive, and are found in many natural gases and crude oils.An isopropyl group is a functional group with the molecular formula C3H7. It is an alkyl group derived from propane, and is composed of three carbon atoms and seven hydrogen atoms.

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In paramecium which has eukaryotic cells mitosis occurs two or three times a week.

Eukaryotic cells are the cells which show presence of nucleus and possess membrane bound organelles.They may be unicellular or multicellular depending on the number of cells present in them.

In eukaryotes , the genetic material is is stored within an organelle which is called as nucleus wherein it is organized in to long molecules which are called as chromosomes.They possess other organelles like mitochondria which are responsible for generation of energy . Endoplasmic reticulum which helps in transport of proteins .

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The number of gold atoms in 0.434 ounces, 18 K gold bracelet would be 2.82 x [tex]10^{21[/tex] atoms.

1 ounce = 28.35 grams

0.434 ounce = 0.434 x 28.35

                      = 12.3039 grams

Since 18 K gold is 75% gold by mass, the actual amount of gold in the bracelet would be:

12.3039 x 0.75 = 9.23 grams

Equivalent mole of 9.23 grams of gold: mole = mass/molar mass

= 9.23/196.967 = 0.0469 mol

1 mole of substances = 6.022 x [tex]10^{23[/tex] atoms

0.0469 mole of gold = 0.0469 x 6.022 x [tex]10^{23[/tex]

                                    = 2.82 x [tex]10^{21[/tex] atoms

In other words, 0.434 ounces, 18 K gold bracelet would contain 2.82 x [tex]10^{21[/tex] atoms of gold.

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The actual iupac name for the chemical compounds is 6,6-diethyl-5-hexen-4-ol. The International Union of Pure and Applied Chemistry is a worldwide association of National Adhering Organizations.

Striving to establish vocabulary and nomenclature in order to enhance the chemical sciences. The organisation belongs to the International Science Council (ISC). Chemical compounds are made up of numerous similar molecules (or molecular entities) that contain atoms from multiple chemical elements and are joined by chemical bonds. Therefore, a molecule made up of atoms from only one element is not a compound. Multiple types of atoms are joined together by chemical bonds to form compounds. Compounds can become simpler substances as a result of chemical processes. Water (H2O) and table salt are examples of compounds (NaCl).

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Heat is absorbed by all solids as they melt and turn into liquids. As a result, the substance changing states absorbs energy throughout the melting process.

Melting and boiling will result in the absorption of heat energy. In both condensation and freezing, heat energy is released (temperature is lowered), which causes the kinetic energy of molecules to decrease. As a result, gas transforms into liquid and then solid as a result. Endothermic chemical processes are those that generally absorb (or use) energy. When bonds in the reactants are broken in endothermic reactions, more energy is absorbed than is released when new bonds are created in the products. Positive energy is released during condensation and consumed during vaporization (negative energy).

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The d-orbital energy diagram of octahedral complex [CoCl_6]^4- is as follows:

Octahedral complexes are a type of coordination complex consisting of a central atom or ion bound to six peripheral atoms, ions, or groups. The peripheral atoms or groups are arranged in an octahedral structure, consisting of six equidistant vertices connected by eight edges. The most common examples of octahedral complexes are those composed of metal ions and ligands. These complexes can be used in a variety of applications, including catalysis, metal extraction, and drug delivery.

The energy levels of the d-orbitals are organized in a set of 4 degenerate orbitals and each of these orbitals consists of 2 electrons. The 4 degenerate orbitals are: dxy, dyz, dxz and dz2. The dxy and dyz orbitals are the highest in energy and the dz2 orbital is the lowest in energy.

The octahedral complex [CoCl_6]^4- has 6 chloride ligands in an octahedral arrangement around the central cobalt metal ion. The 6 chloride ligands will interact with the metal ion’s d-orbitals, resulting in a splitting of the d-orbitals and the formation of a d-orbital energy diagram.

The d-orbital energy diagram of [CoCl_6]^4- is shown below, with the dxy and dyz orbitals at the highest energy, the dz2 orbital at the lowest energy and the dxz orbital in the middle.

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The correct response is C) [tex]5.09*10^{23}[/tex]. The number of sulfur atoms is [tex]5.09*10^{23}[/tex].

Chemical element sulphur has the symbol S and atomic number 16. Sulfur, which is categorized as a nonmetal, is a solid at ambient temperature. Due to the weak S=S double bonds that sulphur does not form, elemental sulphur is typically made up of cyclic S8 molecules, in which each atom completes its octet by creating single bonds to two adjacent atoms, as seen in the figure below. We are aware that sulphur, like SF6, can contain more than eight electrons using its vacant valence d orbitals. The Sulphur is once again six-coordinated in an alternate structure (b), which can be expressed with S=O double bonds. In 27.1 g of molecular Sulphur, there are the following Sulphur atoms:

27.1 g S8 x ([tex]1[/tex] mol S8/32.066 g S8) x ([tex]6.022*10^{23}[/tex] atoms/[tex]1[/tex] mole)

[tex]=5.09*10^{23}[/tex]

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Answer:

No reaction occurs

Explanation:

trust me on this one :)