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The ground-state electron configuration of a Mn2+ ion is 1s22s22p63s23p63d5. Therefore, Mn2+ is

The order of increasing disorder is solid, liquid, and gas. This arrangement is based on the increasing freedom of movement and randomness of the particles as we move from solid to liquid to gas.

Solid: Solids have a highly ordered arrangement of particles, with strong intermolecular forces and fixed positions of atoms or molecules.

Liquid: Liquids have less order compared to solids, as particles have more freedom of movement while still maintaining close proximity to one another.

Gas: Gases have the highest degree of disorder among the three phases. Gas particles are widely spaced, move freely, and lack a definite shape or volume.

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Answer:

electron orbitals (okay nayn manghula kana Lng)

First, we will calculate the number of moles of mixture of Xenon and Neon gases.Number of moles of mixture of Xenon and Neon gases:

Let x be the mole fraction of Neon.

Therefore, (1 - x) is the mole fraction of Xenon

.Mole fraction of Neon + Mole fraction of Xenon = 1x + (1 - x) = 1x = 1 - (1 -

x = 0 + x

x = 0.279

Mole fraction of Neon = 0.279

Mole fraction of Xenon = 0.721

Number of moles of gas = (Total Pressure * Volume)/(Gas Constant * Temperature)

Number of moles of Xenon = (7.10 atm * 16.75L * 0.721)/(0.08206 * (273 + 30))

Number of moles of Xenon = 8.44 moles

Number of moles of Neon = (7.10 atm * 16.75L * 0.279)/(0.08206 * (273 + 30))

Number of moles of Neon = 3.29 moles

Now, we can calculate the partial pressure of Xenon and Neon.

Partial pressure of Xenon:

Partial Pressure of Xenon = Mole fraction of Xenon * Total Pressure

Partial Pressure of Xenon = 0.721 * 7.10 atm

Partial Pressure of Xenon = 5.12 atm

Partial pressure of Neon

Partial Pressure of Neon = Mole fraction of Neon * Total Pressure

Partial Pressure of Neon = 0.279 * 7.10 atm

Partial Pressure of Neon = 1.98 atm

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The answer of this answer is given in the attached file

The pressure of nitrogen gas in the flask is 10.8 atm.

We can use the ideal gas law, which relates the pressure (P), volume (V), number of moles (n), and temperature (T) of gas:

PV = nRT

where R is the gas constant (0.0821 L atm mol⁻¹ K⁻¹).

We are given the volume (V = 2.50 L), number of moles (n = 0.862 mol), and temperature (T = 246 K) of nitrogen gas in the flask. We can rearrange the ideal gas law to solve the pressure:

P = nRT/V

P = (0.862 mol)(0.0821 L atm mol⁻¹ K⁻¹)(246 K)/(2.50 L)

P = 10.8 atm

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Answer:

1802

Explanation:

 Humphry Davy invented the first electric light

Answer:

1806

Explanation:

The very first light bulb was not invented by Thomas Edison, but by British inventor Humphry Davy in 1806. His devices created an arc of electricity between electrodes, creating a very bright light. While far too dangerous to use at home, they were used in public spaces and commercially.

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Answer:=33.8 psi

Explanation:

Answer:

33.8007 (i think)

Explanation:

The only incorrect statement in the diagram is (d) Cr202-7 can be used in aqueous H2SO4.

Option (d) is incorrect because the half-cell reaction involving Cr2O7^2- and H+ (aq) produces H2CrO4, which can decompose in acidic solutions, leading to inaccurate results. Therefore, Cr2O7^2- should not be used in aqueous H2SO4 for the quantitative estimation of Fe(NO3)2-.

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The Only incorrect statement is option C

Electrochemistry is a branch of chemistry that deals with the study of the relationship between electrical energy and chemical reactions.

It involves the study of the behavior of electrons and ions in chemical reactions that occur in a solution or at the interface between two different phases, such as a solid electrode and a liquid electrolyte.

We can see that it is better to use HCl instead of the use of the H2SO4 acid as we have in the options.

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Answer:

temp. of water, form of sugar

Explanation:

Answer:

If the mass of a sample of aluminum foil is known, then it is possible to calculate the volume of the foil. In general volume is the product of length times width times height of an object. If we know the length and width of a piece of foil, we can then determine its height, or thickness.

sorry if wrong

Answer:

amu, atomic number, electrons, atomic mass

Explanation:

The heat absorbed or released by a substance when its temperature changes depend on its heat capacity (Cp). The Cp of the water is 1 cal/g°C. The heat released can be found by the following equation:

Where,

Q is the heat released or absorbed

m is the mas oof water, 15.5g

Cp is the heat capacity of water, 1cal/g°C

dT is the change in temperature

We replace the known values

In Joules the heat released will be:

the heat has a negative value, this is because the water released heat.

Answer:

The amount of heat released is 504 calories or 2019 joules

Sucrose has the molecular  C₁₂H₂₂O₁₁ . if a sucrose sample contains 9.0x10²⁴ atoms of hydrogen, There are 1.4370 x10²⁶ molecules of sucrose are present in the sample.

Sucrose C₁₂H₂₂O₁₁ contain  C₁₂H₂₂O₁₁  Hydrogen

First we should how how many percentage of hydrogen in sucrose

The following formula will be used to determine the percentage of elements present in a molecule:

(Mass of Element / Mass of Molecule) / 100 equals the percentage of an element.

Sucrose's molecular weight is.

= (12)12 + (1)22 + (16)11, 

where 12 is the mass of an atom of carbon.

Hydrogen's atomic mass is 1, thus.

16 = Oxygen Atomic Mass

mass sucrose = 144 + 22 + 176

mass sucrose = 342 g/mol

% of H  =  (22 / 342) ×100    =  6.43 %

to calculate how many molecules sucrose are present we can compare percentage of hydrogen to % sucrose

 % hydrogen         =         % sucrose            

atom hydrogen           molecules of sucrose

6.43 %        =              100%              

9.0x10²⁴          molecules of sucrose    

molecules of sucrose    = 1.4370 x10²⁶ molecules

Therefore,  There are 1.4370 x10²⁶ molecules of sucrose are present in the sample.

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Answer:

A. 7

(assuming the water is neutral)

The number of c70 molecules that can be made from one mole of carbon atoms would be 42.14 × 10²³ molecules.

According to standards, 1 mole of any substance contains 6.02 × 10²³ molecules of the substance.

C70 is an allotope of carbon that contains 70 atoms in a single molecule of its atom.

If 1 mole of carbon contains 6.02 × 10²³ molecules by standard, then the number of C70 molecules that can be made from 1 mole of carbon atoms would be:

6.02 × 10²³ x 7 = 42.14 × 10²³ molecules

In other words, the number of C70 molecules that can be made from one mole of carbon atom would be 42.14 × 10²³ molecules.

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Physical components and the chain of cause and effect to explain how something works is known as a Mechanistic explanation.

Mechanistic’ is derived from ‘mechanism’ (and not ‘mechanics’). A mechanism is a complex entity that generates certain phenomena, after receiving some input. Mechanistic explanations aim at opening the black boxes of mechanisms and at understanding how the different parts work together. Complexity means, for example, the existence of multiple levels, and mutual relationships between parts and whole. That is why another term for ‘mechanistic explanation’ is ‘constitutive explanation’:

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Answer:

C

Explanation:

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The correct name of the compound is dinitrogen pentoxide.

We know that we can be able to name a compound from the formula of the compound. This is the whole essence of the IUPAC nomenclature. The International Union of Pure and Applied Chemistry put forward some standard rules  that can be applied when we are naming a compound.

We can see here that we have two atoms of nitrogen and five atoms of oxygen in the compound and this would have to reflect as we name the compound and this also as we can see do  derive directly from the molecular formula of the compound.

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70.9-gram sample of \(Cl_{2}\) gas will occupy Opton C. 22.4 liters at STP.

To determine the volume occupied by the sample of \(Cl_{2}\) (g) at STP, we can use the ideal gas law equation, PV = nRT

where P = pressure

V = volume

n = number of moles

R = ideal gas constant

T = temperature.

At STP (Standard Temperature and Pressure), the pressure is 1 atmosphere (atm) and the temperature is 273.15 Kelvin (K).

First, calculate the number of moles of \(Cl_{2}\) (g) using its molar mass. The molar mass  \(Cl_{2}\) is 70.9 grams/mol.

Number of moles (n) = mass (m) / molar mass (M)

n = 70.9 g / 70.9 g/mol

n = 1 mol

Now, we can calculate the volume using the ideal gas law:

V = (nRT) / P

V = (1 mol * 0.0821 L·atm/mol·K * 273.15 K) / 1 atm

V ≈ 22.4 L

Therefore, the correct answer is C. 22.4 L.

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The molecular shape is determined by the number of electron domains around a central atom where an electron domain can be a lone pair, a single bond, or a multiple bond.

The molecular geometry is determined by the type and number of electron domains on the central atom. The electron domain geometry is determined by the number of electron domains around the central atom.

Both the electron and molecular geometry of a compound can be identified using the VSEPR theory (Valence Shell Electron Pair Repulsion). The molecular geometry is determined by the type and number of electron domains on the central atom.

The electron domain geometry is determined by the number of electron domains around the central atom. Electron domains are regions of space around the central atom that contain an electron pair. When lone pairs or multiple bonds are present, these domains are also counted.

The electron domain geometry is the term used to describe the shape of the molecule based on the number of electron domains present on the central atom.

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The composition of the sigma bonds in methane i.e. the atomic orbits comprise the molecular orbit is σsp³-sp³

Methane is a one-carbon compound in which carbon is attached to four hydrogen atoms by single bonds. It is colorless, odorless, non-toxic, but a flammable gas (bp -161°C). It serves as a fossil fuel, a member of greenhouse gases, and a bacterial metabolite. In the methane molecule, a carbon atom forms covalent bonds with four different hydrogen atoms. There are no lone pairs of electrons in carbon atoms. So the 4 hydrogen atoms are at the 4 corners of the tetrahedron and the carbon is at the center of the tetrahedron. Hybridization in the methane molecule occurs by mixing one orbital with three p-orbitals. Each orbital consists of an unpaired electron. Carbon's s orbital and three p orbitals overlap with her 1s orbital of hydrogen to form a bond. Therefore, methane hybridizes to sp3 resulting in tetrahedral geometry. The methane molecule is non-polar. In particular, the dipole moment of methane is zero. A dipole moment of zero means that the "center of negative charge" in the molecule corresponds to the "center of positive charge".

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Dipole-dipole interactions, London dispersion forces, and hydrogen-bound are some kinds of attractive forces that may exist between particles in molecular crystals.

The forces of attraction or repulsion between adjacent particles are known as intermolecular forces (atoms, molecules, or ions ). When compared to intramolecular forces, such as the covalent or ionic bonds between atoms in a molecule, these forces are weak.

Molecular solids are bound together by hydrogen bonds, dipole-dipole forces, and intermolecular dispersion forces. Dry ice (solid CO2) and ice (solid H2O) are examples of molecular solids. Ice and dry ice are kept together by hydrogen bonds and dispersion forces, respectively.

Yes, solids have the strongest intermolecular forces.

The intermolecular interactions are extremely strong and the constituent particles are tightly packed in solids. Solids are hence incompressible and have a high density.

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Answer:b

Explanation:

Answer:

hi

Explanation:

1 east

2 the flower bud for cotton and for jute the leaves

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