1. Is diphenylmethane a solid or a liquid at room temperature?

concentration of the acetone immediately after mixing

We are given:

- Molarity of Acetone\($=4.0 \mathrm{M}$,\)

- Volume of Acetone\($=11 \mathrm{~mL}=0.011 \mathrm{~L}$,\)

- Volume of\($B r_2=16 \mathrm{~mL}$,\)

- Volume of \($\mathrm{HCl}=11 \mathrm{~mL}$\), and

- Volume of Water\($=16 \mathrm{~mL}$.\)

therefore Total Volume of Solution\($=(11+16+11+16) m L=54 m L=0.054 L$\)and

Total No. of moles \(\mathrm{M} \times 0.011 \mathrm{~L}$$=0.044 \mathrm{~mol}$\)of Acetone = Molarity of Acetone \($\times$\) Volume of Acetone i =4.0

\($\therefore$ Molarity of Acetone $=\frac{\text { No. of moles of Acetone }}{\text { Volume of solution in liter }}$\)

\($=\frac{0.044 \mathrm{~mol}}{0.054 \mathrm{~L}}$$=0.815 M$Hence, Concentration of Acetone (in Molarity) is $0.815 \mathrm{M}$.\)

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To solve this problem, we can use the ideal gas law, which relates the pressure, volume, temperature, and number of moles of a gas.

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

Since we are dealing with the same gas (oxygen) at the same temperature and pressure, we can assume that the value of R is constant. Therefore, we can write:

PV/n = RT

The ratio PV/n is known as the molar volume of the gas, and is constant for a given temperature and pressure. We can use this relationship to find the volume of oxygen gas that corresponds to 5.00 g.

First, we need to calculate the number of moles of oxygen gas in 1.9 g:

n = m/M

where m is the mass of the gas and M is the molar mass of oxygen, which is 32 g/mol.

n = 1.9 g / 32 g/mol

n = 0.059375 mol

The molar volume of oxygen gas at the given temperature and pressure is:

PV/n = RT/n

V/n = RT/P

Substituting the given values, we get:

V/n = (0.0821 L·atm/mol·K) x (273 K) / (1 atm)

V/n = 22.414 L/mol

Therefore, the volume of 1.9 g of oxygen gas is:

V1 = n x V/n = 0.059375 mol x 22.414 L/mol = 1.331 L

Now we can use the molar volume to find the volume of 5.00 g of oxygen gas:

n = m/M = 5.00 g / 32 g/mol = 0.15625 mol

V2 = n x V/n = 0.15625 mol x 22.414 L/mol = 3.51 L

Therefore, 5.00 g of oxygen gas will occupy a volume of 3.51 L at the same temperature and pressure as 1.9 g of oxygen gas.

N₂O₄(g)   ---->  2NO₂(g) is called as the decomposition reaction.

When one reactant in a chemical reaction is decompose to form one or more products then the chemical reaction is said to be decomposition reaction. The reaction is as follows :

N₂O₄(g)   ---->  2NO₂(g)

This equation is balanced equation. Dinitrogen tetroxide containing N - N single bond dissociates to form two molecules of nitrogen dioxide. the reaction is called as decomposition reaction . decomposition reaction are generally endothermic reaction because they require heat to decompose. as we know to break the bond energy is absorbed and formation of bond is the release of energy.

Thus, N₂O₄(g)   ---->  2NO₂(g) is called as the decomposition reaction.

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Answer:

A

Explanation:

I believe the answer is A. An object is every color except the color we see, or the color that bounces off of said object. Therefore if a carpet is yellow, the carpet is every color but yellow. Yellow is the color that it rejects, bounces off of it, and the one we see.

To solve this we must be knowing each and every concept related to reflections. Therefore, a pair of jeans look blue because  it reflects blue light.

In physics, reflection usually described as a change in the orientation of a waveform at the interface of two distinct media, bouncing the waveform back onto the original medium.

The color we perceive is primarily determined by how things interact with lighting as well as finally reflect or transfer it to our eyes. The color we perceive is primarily determined by how things interact with lighting as well as finally reflect or transfer it to our eyes. A pair of jeans look blue because  it reflects blue light.

Therefore, a pair of jeans look blue because  it reflects blue light.

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Answer:

it is charles's law

Explanation:

volume does matter with pressure

Answer:

Well,

3

×

N

A

oxygen atoms..

Explanation:

Where

N

A

≡

Avogadro's number

≡

6.022

×

10

23

⋅

m

o

l

−

1

.

And so if wl1

oxygen atoms...

i.e.

18.066×

1023

⋅

oxygen atoms..

Answer:

Help with what?

Explanation:

You didn't give us anything to help you with.

Answer:

Action given and reaction taken

Also known as

Newton's third law of motion

Explanation:

An action will be done such as bouncing a ball on the wall

- You throw the ball (Action)

- The ball bounces back (Reaction)

Hope this Helps

Answer:

305 seconds

Explanation:

Answer:C - 3.115 g

Explanation:Correct

The functional group found in methanol is as follows: R single bond OH (R-OH). Details about methanol can be found below.

A functional group is a specific grouping of elements that is specific to a class of compounds, and determines the chemical properties of that class.

Each hydrocarbon or organic compound have a specific functional group characteristics of its group.

Alcohol (OH) is the functional group of certain organic compounds like methanol, ethanol etc. Therefore, the functional group found in methanol is as follows: R single bond OH (R-OH).

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Answer:

R single bond O single bond R.

Single bond N H Subscript 2

Single bond O H.

R single bond X.

Explanation:

Cody's vehicle accelerates by 3 m/s2 (northward) in the 15 seconds it takes to go from 0 m/s to 45 m/s (northward).

Newton's second law, which states that the force acting on a body is equal to the mass of the body, is the fundamental equation of motion in classical mechanics acceleration an of its center of mass, or F = ma.

When the final velocity is 45 m/s (northward), the beginning velocity is 0 m/s, and the time is 15 seconds, we can calculate the acceleration using the formula acceleration = (final velocity - initial velocity) / time.

When these values are added to the formula, we obtain:

acceleration = (45 m/s - 0 m/s) / 15

acceleration = 3 m/s² (northward).

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The isomer that cannot form an H-bonding interaction with another identical molecule, but can do so with a water molecule, is the primary amine isomer (C3H9N).

The primary amine isomer (C3H9N) has the following structure: H3C-CH2-CH2-NH2.This isomer cannot form H-bonding interactions with another identical molecule because it lacks a hydrogen atom bonded to the nitrogen atom. In order for H-bonding to occur between two molecules, there must be a hydrogen atom bonded to an electronegative atom (such as nitrogen, oxygen, or fluorine) and a lone pair of electrons on the electronegative atom.

In the case of the primary amine isomer, there is only one hydrogen atom bonded to the nitrogen atom, and it is already involved in forming an H-bond with a water molecule.However, the primary amine isomer can form an H-bonding interaction with a water molecule. The lone pair of electrons on the nitrogen atom can act as a hydrogen bond acceptor, while the hydrogen atom bonded to the nitrogen can act as a hydrogen bond donor. This interaction can occur between the lone pair of electrons on the oxygen atom of water and the hydrogen atom bonded to the nitrogen of the primary amine isomer.

In summary, the primary amine isomer (C3H9N) cannot form an H-bonding interaction with another identical molecule due to the lack of a hydrogen atom bonded to the nitrogen. However, it can form an H-bonding interaction with a water molecule.

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The order of the reaction with respect to a is 2.

Let's understand this in detail:

1. In chemistry, the term rate refers to the speed of a reaction or the speed at which a reaction takes place. The symbol "r usually denotes it."

2. A factor is a numerical quantity that indicates how often one quantity is greater than another. For example, if quantity A is ten times greater than quantity B, we say that quantity A is a factor of ten greater than quantity B.

3. In chemistry, the term order refers to the power of the concentration of reactants in the rate law equation that governs the rate of a chemical reaction. The symbol "n usually represents it."

4. The reaction rate between a and b increases by a factor of 100 when the concentration of a is increased tenfold. So, 100 = (r2/r1) (10)^n

Rearranging the above equation, we get:r2 = 100 × r1 = (10^2) × r1

Putting the value of r2 in the rate law equation, we get: 100 × r1 = k[A]^n [B]^m

When the concentration of a is increased tenfold, the factor by which the reaction rate increases is 100. Therefore, the order of the reaction with respect to a can be calculated as follows:

r2/r1 = (10)^n= 100/1= (10^2)

Therefore, n = 2. Hence, the order of the reaction with respect to a is 2.

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3.4 mole of H₂SO₄ moles of sulfuric acid (H₂SO4) are needed to react completely with 6.8 moles of lithium hydroxide.

How many moles of sulfuric acid (H₂SO4) are needed ?

Based on the reaction’s stoichiometry: 2 LiOH + H2SO4 Li2SO4 + 2 H2O

It is obvious that when 2.0 moles of LiOH react with 1.0 mole of H2SO4, 1.0 mole of Li2SO4 and 2.0 moles of H2O are produced.

Making use of cross multiplication:

1.0 mole of H2SO4 totally interacts with LiOH (2.0 moles)

2.0 mole of H2SO4 is required to totally react with 6.8 mole of LiOH.

The mole of H2SO4 = (1.0 x 6.8) / (2.0) = 3.4 mole of H2SO4.

One mole of H2SO4 has an atomic mass of 98 grams. So 98 grams of H2SO4 comprises one mole of H2SO4 molecule, or seven moles of atoms.

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Elements with high ionization energies typically also have high electronegativity values.

This is because the strength of the attraction between an atom and the electrons it contains affects both properties. The more strongly an atom attracts its electrons, the higher it's ionization energy and electronegativity.

This is because it requires more energy to remove the electrons from the atom, resulting in higher ionization energy, and it will also take more energy to attract electrons away from another atom, resulting in a higher electronegativity. This means that elements with high ionization energies typically also have high electronegativity values.

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Despite its appearance, air has a ‘thickness’ so when the sun is high in the sky the light travels through the air on a very much shorter path than when it is low on the horizon.

Imagine that air water and you are below the surface, the light from an overhead sun will be quite sharp and bright, but if lower in the sky it will have to travel through much more water to reach you, so will look less bright and sharp. It ma not seem the same, but the atmosphere is just like very thin water, and a low lying sun will be drastically reduced in strength, so all you will see is a sun with a shift to the red end of the spectrum as all the actinic part will be filtered away by that thicker atmosphere.

Answer:

Basaltic magma is formed through dry partial melting of the mantle. The mantle lies just below the crust of the earth. Basalts make up most of the ocean’s crust; this is why basaltic magma is typically found in oceanic volcanoes. See also what substances are emitted from fumaroles? What type of melting produces most basaltic magmas?

Explanation:

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Down the group lattice energy decreases with increase in atomic radii. It will increase if the magnitude of the charge increases.

A. LiF has greater lattice energy than CsF as \(li^{+}\) has smaller size than \(Cs^{+}\).

B. NaBr has greater lattice energy than NaI as \(Br^{-}\) is smaller in size.

C. BaO has greater lattice energy than \(BaCl_{2}\) due to greater charge on \(O^{2-}\).

D. \(CaSO_{4}\) has greater lattice energy than \(NaSO_{4}\) due to greater charge on \(Ca^{2+}\).

E. \(Na_{2}S\) has greater lattice energy than \(Li_{2} S\) due to large size of \(Na^{+}\) and S.

Lattice energy is the quantity of energy necessary to dissociate the ions in a crystal lattice into their individual gaseous ions. The intensity of interactions between cations and anions in the lattice determines lattice energy.

When one mole of a crystalline ionic compound is formed from its component ions, which are believed to begin be in the gaseous state, the energy change that occurs is known as the lattice energy. It is an evaluation of the cohesive forces holding ionic solids together.

In contrast to the hydration energy, which has distinct anion and cation terms, the lattice energy depends on the sum of the anion and cation radii (r+ + r-). Because of the 1/r2 dependence, the hydration energy is often dominated by the solvation of tiny ions (typically cations).

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Answer:

I'm pretty sure by type and size (I might be wrong).

Explanation:

Magnesium chloride has Ionic bonding.

Hydrogen chloride has Covalent bonding.

Chlorine has Covalent bonding.

Only Magnesium has metallic bonding (3).

Answer:

A

Explanation:

We are usually asked to close the valve of the gas cylinder in our various kitchens at home due to the inflammable property of the Liquified Petroleum Gas.

Without closing the valve, the LPG would diffuse into our homes, and any form of spark would cause an explosion and lead to a fire. Lives and properties could be lost in the process.

The correct option is A.

An atom with 6 protons and 2 electrons would have a net charge of +4, indicating that it has lost two electrons. This atom is now referred to as a cation, specifically a helium cation (He₂⁺). The ion notation for this atom would be written as He₂⁺.

The notation is a shorthand way of representing the atomic structure of an ion. It includes the chemical symbol of the element followed by the charge of the ion written as a superscript. In this case, the chemical symbol is He, which represents helium. The superscript of 2+ indicates that the helium atom has lost two electrons, leaving it with a net positive charge.

It is important to note that the number of protons in the nucleus of the helium ion remains the same as in a neutral helium atom. However, the number of electrons in the ion has decreased, resulting in a change in its chemical and physical properties. This ion is now more likely to bond with other ions or atoms to regain its lost electrons and become more stable.

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Answer: chromium, germanium, iodine

Explanation:

Answer:

Chromium, Germanium, Iodine

Explanation:

edge

In retrosynthetic analysis, the goal is to work backward from a target molecule to identify the possible starting materials and reactions that could be used to synthesize it. In this question, you are asked to draw the two possible starting materials that could be used to synthesize a molecule using a nucleophilic substitution reaction.

Let's break it down step-by-step:

Molecule is the smallest part of a compound that is composed of a combination of two or more atoms. Molecules are divided into two, namely compound molecules and elemental molecules. The difference between compound molecules and elemental molecules is the elements that compose them. Molecules are combinations of two or more atoms, which can be formed from the same atom. Examples of molecules include hydrogen (H2) and oxygen (O2). It can also be formed from different atoms, for example, water (H2O), carbon dioxide (CO2), or carbon monoxide (CO). Molecule (molecule) has the same meaning as a compound (compound), which is a combination of several elements / atoms that bond with each other. Examples of compounds/molecules that exist in nature include: water (H2O) carbon dioxide (CO2).

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The given statement "Modern vehicles are designed to crush when they crash to absorb kinetic energy" is true. Because, Modern vehicles are designed with safety features that include controlled deformation or "crumple zones" to absorb kinetic energy during a crash. Option A is correct.

These crumple zones are strategically placed in the front and rear of the vehicle and are designed to collapse and deform upon impact.

When a vehicle collides with an object or another vehicle, the kinetic energy of the moving vehicle is converted into various forms of energy, including deformation energy. By allowing certain parts of the vehicle to crush or deform, the kinetic energy is absorbed and dissipated over a longer period of time, reducing the force transmitted to the occupants.

The purpose of designing vehicles to crush during a crash is to enhance occupant safety. By absorbing and dissipating energy through controlled deformation, the impact forces on the occupants are reduced, which can help minimize the risk and severity of injuries.

Hence, A. is the correct option.

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The answer to your question is:

The definition of the standard atmosphere's unit of pressure is 101325 Pa. It is occasionally used as a standard pressure or a reference pressure. It roughly corresponds to the average atmospheric pressure at sea level on Earth.

Psi: means "Pounds of force per Square Inch of area " an is a unit of pressure.

Atm: means atmosphere and is a unit of pressure defined as 101325 Pa.

kPa: is defined as the force of 1 Newton applied over one square meter.

     ( 101325 Pa = 101.3 kPa)

Then

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Answer:

Al(OH)3 + HNO3 = Al(NO3)3 + H2O - Chemical Equation Balancer.

Explanation: