Which reaction would yield the largest amount of energy per mole of fuel?
A) 92238U→ 90234 Th + 24He2+
B) CH4 + 2O2→H2O + CO2
C) 92235U + 01n→ 56141Ba + 3692Kr + 3 01n
D) 94238Pu→ 92234U + 24He2+

Student 2 provided the right response because ions are always produced during dissolution.

We already know that as the number of ions rises, the amount of randomness in the solution rises as well. As the amount of disorder rises, the system's entropy rises as a result.

Dissolution of ammonium nitrate as follows:-

NH4NO3 (aq) -> NH4+ (aq) + NO3" (aq)

Dissolution of sodium hydroxide as follows:-

NaOH(aq) -> Na+ (aq) + OH (aq)

So the correct answer is:-

Because dissolving always results in an increase in micro-states, the entropy increased for the dissolution reactions of sodium hydroxide and ammonium nitrate.

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Answer:

the atom of the oxidized molecule donates an electron to the reduced molecule that attracts the electrons

During an oxidation-reduction reaction, electrons are transferred between two molecules. The molecule that loses electrons is oxidized, while the molecule that gains electrons is reduced.

Oxidation-reduction reactions involve a transfer of electrons from one molecule to another. The molecule that loses electrons becomes oxidized because it has lost electrons, while the molecule that gains electrons becomes reduced because it has gained electrons. This transfer of electrons is typically facilitated by the presence of a catalyst or an electron acceptor, such as oxygen or a metal ion.

Thus, during an oxidation-reduction reaction, electrons are transferred between two molecules, leading to the oxidation of one molecule and the reduction of the other. This process is essential for many biological and chemical reactions, including cellular respiration and the combustion of fuels.

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The statement that is NOT true about diazonium salts is d. Diazotization and coupling reactions must be performed at least 1 suppress the hydrolysis of the diazonium salt.

Diazonium salts are compounds that contain a positive charged nitrogen atom (N⁺) and are commonly used as intermediates in organic synthesis. They are formed through a reaction called diazotization, which involves the conversion of a primary aromatic amine to its corresponding diazonium salt by treating it with nitrous acid.

Aryldiazonium salts (where R is an aryl group) are used in the synthesis of commercially available dyes through coupling reactions between activated aromatic compounds. On the other hand, alkyldiazonium salts (where R is an alkyl group) are unstable and likely to decompose, giving a variety of products because N2 is far more stable than R-N2.

Aryldiazonium salts are moderately stable in water at 0 °C because the system of the aromatic ring stabilizes the pi system of the N2+, the diazonium ion. However, diazonium salts are generally unstable in water and can undergo hydrolysis to produce the corresponding phenol or amine. Therefore, diazotization and coupling reactions must be performed in a dry, organic solvent to suppress the hydrolysis of the diazonium salt.

Therefore, option d is NOT true as it states that diazotization and coupling reactions must be performed to suppress the hydrolysis of the diazonium salt, while in reality, these reactions are performed in dry, organic solvents to avoid hydrolysis.

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Answer:

Natural gas is an odorless, gaseous mixture of hydrocarbons—predominantly made up of methane (CH4). It accounts for about 30% of the energy used in the United States. About 40% of the fuel goes to electric power production and the remaining is split between residential and commercial uses, such as heating and cooking, and industrial uses. Although natural gas is a proven, reliable alternative fuel that has long been used to power natural gas vehicles, only about two-tenths of 1% is used for transportation fuel.

The vast majority of natural gas in the United States is considered a fossil fuel because it is made from sources formed over millions of years by the action of heat and pressure on organic materials. Alternatively, renewable natural gas (RNG), also known as biomethane, is a pipeline-quality vehicle fuel produced from organic materials—such as waste from landfills and livestock—through anaerobic digestion. RNG qualifies as an advanced biofuel under the Renewable Fuel Standard.

Because RNG is chemically identical to fossil-derived conventional natural gas, it can use the existing natural gas distribution system and must be compressed or liquefied for use in vehicles.

CNG and LNG as Alternative Transportation Fuels

Two forms of natural gas are currently used in vehicles: compressed natural gas (CNG) and liquefied natural gas (LNG). Both are domestically produced, relatively low priced, and commercially available. Considered alternative fuels under the Energy Policy Act of 1992, CNG and LNG are sold in units of gasoline or diesel gallon equivalents (GGEs or DGEs) based on the energy content of a gallon of gasoline or diesel fuel.

Compressed Natural Gas

CNG is produced by compressing natural gas to less than 1% of its volume at standard atmospheric pressure. To provide adequate driving range, CNG is stored onboard a vehicle in a compressed gaseous state at a pressure of up to 3,600 pounds per square inch.

CNG is used in light-, medium-, and heavy-duty applications. A CNG-powered vehicle gets about the same fuel economy as a conventional gasoline vehicle on a GGE basis. One GGE equals about 5.66 pounds of CNG.

Liquefied Natural Gas

LNG is natural gas in its liquid form. LNG is produced by purifying natural gas and super-cooling it to -260°F to turn it into a liquid. During the process known as liquefaction, natural gas is cooled below its boiling point, removing most of the extraneous compounds found in the fuel. The remaining natural gas is primarily methane with small amounts of other hydrocarbons.

Because of LNG's relatively high production cost, as well as the need to store it in expensive cryogenic tanks, the fuel's widespread use in commercial applications has been limited. LNG must be kept at cold temperatures and is stored in double-walled, vacuum-insulated pressure vessels. LNG is suitable for trucks that require longer ranges because liquid is denser than gas and, therefore, more energy can be stored by volume. LNG is typically used in medium- and heavy-duty vehicles. One GGE equals about 1.5 gallons of LNG.

Answer:

72.440064 in

Explanation:

Convert meters to yards.

(1.84 m) × (1.0936 yd/m) = 2.012224 yd

Convert yards to feet.

(2.012224 yd) × (3 ft/yd) = 6.036672 ft

Convert feet to inches.

(6.036672 ft) × (12 in/ft) = 72.440064 in

Answer:

Answer to the following question is as follows;

Explanation:

A millilitre is equal to the volume of a cube with 1 cm on each side. As a result, one millilitre equals one cubic centimetre. There are 1000 mL in a litre, that is the same as 1000 cm3 in a square metre.

1 ml = 1 cm³

1000 ml = 1 liter

The solubility in moles/liter for aluminum hydroxide at 25 degrees Celcius is  2.47×109 M

What is solubility?

The maximum amount of a substance that can be dissolved in a given volume of a solvent at a particular temperature is referred to as the substance's solubility. The solubility of a given solute-solvent combination is a quality that is unique to that combination; yet, the solubility of individual compounds can vary substantially.

Given that,

Temperature= 25 degrees Celcius

Ksp value= 1.0 X 10^-33

Al(OH)3(s) ==> Al3+(aq) + 3OH-(aq)

Ksp = [Al3+][OH-]3

Let x = [Al3+], then [OH-] = 3x

1.3x10-33 = (x)(3x)3

1.3x10-33 = 27x4

x4 = 4.8x10-35

x = 2.5X10-9 M = molar solubility of Al(OH)3

Hence, the answer rounded off to one decimal point since in decimal part .466 digits in 2nd and 3rd place (66) and greater than 50. the previous digit is converted to the next digit (4-5) Even if you want to give the answer up to two decimal points then the digit in 3rd place (6) is greater than (5) so the digit in 2nd decimal place converts to (67) the answer will be 2.47×109.

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Answer:

Explanation:

A + B → C + D I think

Answer:

Explanation:

Carbon cycle explains the movement of carbon between the earth's biosphere, geosphere, hydrosphere and atmosphere. ... Carbon atoms are then released as carbon dioxide when organisms respire. The formation of fossil fuels and sedimentary rocks contribute to the carbon cycle for very long periods.

Answer:

they regulate the amount of water in the body.

Explanation:

The kidneys help maintain homeostasis by regulating the concentration and volume of body fluids. For example, the amount of H+ and HCO3 - secreted by the kidneys controls the body's pH.

Answer:

10 must be added

Explanation:

The concentration of iron(iii) chloride contaminant in the original groundwater sample is (C1 × V1 / V) × 162.2 g/mol.

Given that the chemist adds m silver nitrate solution to the sample until silver chloride stops forming. He then washes, dries, and weighs the precipitate. He finds he has collected of silver chloride. Let us calculate the concentration of iron(iii) chloride contaminant in the original groundwater sample.Calculating the concentration of iron(iii) chloride contaminant in the original groundwater sample

Here is the given information;

Mass of silver chloride precipitate = m grams

Volume of groundwater sample taken = V ml

Volume of AgNO3 solution used = V1 ml

Concentration of AgNO3 solution = C1

Molar Mass of AgCl precipitated = 143.5 g/mol

The molarity of AgNO3 solution is given as;

Molarity of AgNO3 = Number of equivalents / Volume of solution in liters

We know that 1 mole of AgNO3 gives 1 mole of AgCl, i.e., AgNO3 is equivalent to AgCl.Therefore, the number of equivalents of AgNO3 is the same as the number of equivalents of AgCl.

Number of equivalents of AgNO3 = C1 × V1

Number of equivalents of AgCl = m / 143.5 g/mol

Concentration of FeCl3 = (Number of equivalents of FeCl3 / Volume of sample in liters) × Molar mass of FeCl3

Number of equivalents of FeCl3 = Number of equivalents of AgNO3

Number of equivalents of FeCl3 = C1 × V1

Concentration of FeCl3 = (C1 × V1 / V) × Molar mass of FeCl3

Concentration of FeCl3 = (C1 × V1 / V) × 162.2 g/mol

Hence, the concentration of iron(iii) chloride contaminant in the original groundwater sample is (C1 × V1 / V) × 162.2 g/mol.

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Answer: The entire container because gases will expand to fill it.

Explanation:

Answer:

The value is   \(k = 2 \ ppb\)

Explanation:

From the question we are told that

   The volume of the drinking water is  \(V = 500 \ mL = 500 *10^{-3} \ L = 500 *10^{-6} \ m^3\)

   The mass of  mercury it contains  \(m_c = 0.001 \ mg = 0.001 *10^{-3} \ g = 0.001 *10^{-6}\ kg\)

Generally the mass of water is mathematically represented as

       \(m = V * \rho\)

Here \(\rho\) is the  density of water with value  \(\rho = 1000 \ kg/m^3\)

So

       \(m = 500 *10^{-6 }* 1000\)

=>    \(m = 0.5 \ kg\)

Generally  ppb mean part per billon ,  and  1 billon is  100,000,000

So the part per billon which this represents is mathematically represented as

        \(k = \frac{0.001 *10^{-6}}{ 0.5} * 100 000 000\)

=>     \(k = 2 \ ppb\)

Answer:

2 ppb

Explanation:

I got it right in class!

Hope this Helps!! :))

Answer:

Tornadoes form when warm, humid air collides with cold, dry air.

Explanation:

The denser cold air is pushed over the warm air, usually producing thunderstorms. The warm air rises through the colder air, causing an updraft. The updraft will begin to rotate if winds vary sharply in speed or direction.

// have a great day //

Answer:

your question says of the following but their isn't any of the following ):

Explanation:

But other than than that person right up above

Answer:

Zirconium

Explanation:

Given that,

Mass number = 92

No of neutrons = 52

Mass number is the sum of the number of protons and neutrons. We can find the number of protons.

92 = 52 + P

P = 40

Atomic number is equal to the number of protons. It means that the atomic no of the element is 40. The element is Zirconium whose atomic number is 40 and mass number is 92.

Answer:

condensation

Explanation:

when heated beaker sed condensation

Answer: For the given reaction-

Explanation:

For example, Tin + silver nitrate = tin (IV) nitrate + silver

The 'equal to' symbol denotes a forward arrow.

For example, \(Sn + AgNO_{3} \rightarrow N_{4}O_{12}Sn + Ag\)

 \(Sn(s) + 4AgNO_{3}(aq) \rightarrow N_{4}O_{12}Sn(aq) + 4Ag(s)\)

Answer:

Explanation:

2C4H10 (g) + 11O2(g) —> 8CO2 (g) + 6H2O (g)

Hope this helps you

Hope this helps you

Answer:

2C4H10 + 2O2 ---> 8CO2 + 10H2O

Explanation:

Student question: For each solute, identify the better solvent: water or carbon tetrachloride.

To determine the better solvent for a given solute, consider the general rule "like dissolves like." This means that polar solutes dissolve well in polar solvents, and nonpolar solutes dissolve well in nonpolar solvents.

Water (H2O) is a polar solvent, while carbon tetrachloride (CCl4) is a nonpolar solvent.

1. If the solute is polar, water (H2O) would be the better solvent.
2. If the solute is nonpolar, carbon tetrachloride (CCl4) would be the better solvent.

Remember to identify the solute's polarity first, and then use the "like dissolves like" principle to choose the appropriate solvent.

The expected bond angles in It have a see saw shape and thus will have bond angles of 90, 120, and 180.

What is bond perspective primarily based totally on?

A bond perspective is the perspective made through 3 linked nuclei in a molecule. By convention, the bond perspective is taken into consideration to be among 0° and 180°. Electron domain names have function angles and structures. For example, a valuable atom with areas of electron density is taken into consideration linear with a bond perspective of 180°.

Bond attitude is described as the attitude among the 2 bonds i.e., attitude among orbitals containing bonding electron pairs across the significant atom in a complicated molecule or ion. It is measured in ranges and is calculated the use of spectroscopic method.

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Answer:

ll

Explanation:

brainlest if this helped

Answer:

see below

Explanation:

3.  87.073 meters to three significant figures.

  = 87.1 meters

2.  Write the number in scientific notation. _____meters​

   = 8.71 x 10 ¹  meters

Answer:

see below

Explanation:

a.  87.073 meters to three significant figures  = 87.1 meters

b.  Write the number in scientific notation. _____meters​  = 8.71 x 10^1  meters

A 0.01 sugar solution and a 0.01 NaCl solution have different properties and characteristics due to the different nature of the solutes present in the solutions.

A sugar solution refers to a solution in which a sugar, such as glucose or sucrose, is dissolved in water. The concentration of the sugar in the solution is measured in molarity, which is defined as the number of moles of solute per liter of solution. A NaCl solution refers to a solution in which sodium chloride (NaCl) is dissolved in water. The concentration of the NaCl in the solution is also measured in molarity.

The properties of a solution depend on the nature of the solute and the concentration of the solution. In general, as the concentration of a solution increases, the solute particles become more dispersed and the solution becomes more dilute. This can lead to changes in the physical and chemical properties of the solution, such as changes in color, odor, taste, and viscosity.

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Answer:

A=4

B= 4+2 =6

C=Carbon

D=10

E=22

F=Argon

Answer:

A = 8

B = 8

C = O

D = 26

E = 30

F = Fe

Explanation: I got it wrong from both of the answers on the other answer. These were the correct ones.

Find the number of moles, we divide the given mass (125 g) by the formula mass (262.9 g/mol):  125 g / 262.9 g/mol = 0.475 mol, However, we need to multiply this by the number of phosphorus atoms in one formula unit of magnesium phosphate.

In one formula unit of mg3(po4)2, there are 2 atoms of phosphorus.
Therefore, the total number of phosphorus atoms in 125 g of magnesium phosphate can be calculated as: 0.475 mol x 2 atoms/mol = 0.950 atoms .

Calculate the number of moles of Mg3(PO4)2 in 125 g:
moles = mass / molar mass = 125 g / 262.9 g/mol = 0.475 moles
2. Determine the number of moles of phosphorus (P) in Mg3(PO4)2:
Mg3(PO4)2 has 2 moles of P per 1 mole of the compound, so 0.475 moles Mg3(PO4)2 × 2 moles P/1 mole Mg3(PO4)2 = 0.95 moles P
3. Calculate the number of atoms of phosphorus:
atoms = moles × Avogadro's number = 0.95 moles P × 6.022 x 10^23 atoms/mol = 1.43 x 10^23 atoms P.

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To answer this question, there are approximately 5.72 x 10^23 atoms of phosphorus in 125 g of magnesium phosphate.

we first need to find the molar mass of magnesium phosphate. The formula mass given in the question is 262.9 g/mol.
Now, we can use the formula mass to find the number of moles of magnesium phosphate in 125 g of the compound.
Moles of Mg3(PO4)2 = mass / molar mass
Moles of Mg3(PO4)2 = 125 g / 262.9 g/mol
Moles of Mg3(PO4)2 = 0.4754 mol
Next, we need to determine the number of moles of phosphorus in this amount of magnesium phosphate. We can use the formula of the compound to determine the ratio of magnesium to phosphorus.
There are 2 phosphorus atoms in each molecule of magnesium phosphate, so we can multiply the number of moles of Mg3(PO4)2 by 2 to get the number of moles of phosphorus.
Moles of P = 0.4754 mol Mg3(PO4)2 x 2
Moles of P = 0.9508 mol P
Finally, we can use Avogadro's number (6.022 x 10^23) to convert the number of moles of phosphorus to the number of atoms of phosphorus.
Number of P atoms = moles of P x Avogadro's number
Number of P atoms = 0.9508 mol P x 6.022 x 10^23 atoms/mol
Number of P atoms = 5.72 x 10^23 atoms
Therefore, there are approximately 5.72 x 10^23 atoms of phosphorus in 125 g of magnesium phosphate.

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The theoretical yield of a reaction is 5.00 moles of potassium permanganate . If the reaction actually produces 616.2 g KMnO₄ ,  the percent yield of the reaction is 78 %.

given that :

the theoretical yield of the reaction = 5 mol

mass of the potassium permanganate = 616.2 g

molar mass of the potassium permanganate = 158 g /mol

moles of the  KMnO₄ = mass / molar mass

                                   = 616.2 / 158

                                   = 3.9 moles

the percent yield = ( experimental yield / theoretical yield ) × 100 %

                              = ( 3.9 / 5 ) ×100 %

                              = 78 %

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The classification of the given compounds is as follows:

(a) lactose (C₁₂​H₂₂​O₁₁​) - non-electrolytes

(b) lactic acid (HC₃​H₅​O₃​) - weak electrolytes

(c) dimethylamine [(CH₃​)₂​NH] - weak electrolyte

(d) barium hydroxide Ba(OH)₂ - strong electrolytes

Electrolytes are substances that when in the molten or solution state conduct electricity and are decomposed by the direct current passing through them.

Electrolytes dissociate into the component ions when they are dissolved in water or in molten form. Some examples of electrolytes are acids and bases.

Strong electrolytes dissociate completely into one while weak electrolytes dissociate partially.

Non-electrolytes do not dissociate into ions in solution but remain as molecules. Some example of non-electrolytes is organic solvents.

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