What substituent(s) might you add to convert benzoic acid into a very strong acid? Draw its structure and explain your reasoning

Answer:

Truck crashes into a car

Answer:

I believe your answer would be, "A" A particle with two or more atoms bonded covalently.

Explanation:

The definition of a molecule;

A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

The correct order of increasing strength of intermolecular forces is C*H_{4} < C*H_{3}*C*H_{3} < C*H_{3}*C*H_{2}*C*H_{3}. Hence, the option (d) is correct.

The strength of intermolecular forces depends on the type of molecules present. There are three types of intermolecular forces that are generally present in molecular substances: van der Waals forces, dipole-dipole forces, and hydrogen bonding. These forces increase in strength as the polarity of the molecule increases. Vanderwaal's forces are considered the weakest intermolecular force between molecules. Van der Waals forces are also called dispersion forces, London forces, or instantaneous dipole forces. These forces arise when there is a temporary formation of dipoles between atoms. These are more pronounced in larger molecules as there is more space for temporary dipoles to occur, which implies that CH4 has the weakest Vanderwaal's forces due to the presence of multiple carbon atoms and the presence of hydrogen atoms in between them. CH3CH3 has a higher intermolecular force than CH4.

Therefore, CH3CH3 has higher intermolecular forces than CH4 and CH3CH2CH3 has the highest intermolecular force out of the three.

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The correct equation for the single replacement reaction between bromine (Br2) and calcium iodide (CaI2) can be written as:

Br2 + CaI2 → 2BrI + Ca

In this reaction, bromine (Br2) replaces the iodine (I) in calcium iodide (CaI2), resulting in the formation of bromine iodide (BrI) and calcium (Ca).

To write the balanced equation, we ensure that the number of atoms on both sides of the equation is equal. In this case, we have two iodine atoms on the reactant side, so we need two bromine iodide (BrI) molecules to balance the iodine atoms. The calcium (Ca) atom is already balanced.

Therefore, the balanced equation for the single replacement reaction between bromine and calcium iodide is:

Br2 + CaI2 → 2BrI + Ca

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Answer:

See explanation

Explanation:

Now , we have the equation of the reaction as;

2H2S(g) + 302(g)------->2SO2(g) + 2H2O(g)

This equation shows that SO2 gas is produced in the process. Let us recall that this same SO2 gas is the anhydride of H2SO4. This means that it can dissolve in water to form H2SO4

So, when SO2 dissolve in rain droplets, then H2SO4 is formed thereby lowering the pH of rain water. This is acid rain.

Temperature constant, Boyle's law

P₁V₁=P₂V₂

3.15 = P₂.7

P₂=6.43 atm

Answer:

The volume will remain the same.

Explanation:

The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure (Charles's law)

There are so many gas laws like Charles's law, Avogadro’s law, Boyle 's law and many more. If pressure of gas is kept constant, then volume of the gas will be increasing.

According to Charles's law, gas expands on heating. At constant pressure, volume well be directly proportional to temperature.

According to ideal gas equation

PV=nRT

On keeping pressure constant the following equation can be deduced to Charles's law as

V₁÷T₁=V₂÷T₂

where,

V₁= initial volume

V₂= final volume

T₁=initial temperature

T₂=final temperature

According to Charles's law, the volume of a given gas sample is directly proportional to its absolute temperature at constant pressure.

Therefore, if pressure is kept constant, then volume of the gas will be increasing.

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.

Answer:

dragon tree

Explanation:

they look pretty cool

Answer:

ooooo i like the dragan tree ^◡^

Explanation:

favorite plant the dragon tree or the Dicentra tree?

Answer: A.

Explanation: When light passes through a small hole, it creates an inverted image on the opposite side. In this case, since the arrow is pointing up, the inverted image will appear pointing down on the opposite wall. Furthermore, since the box has a hole on its left side, the inverted image will be shifted towards the left.

The selection of a wavelength of 565 nm in a spectrophotometer or colorimeter is based on the absorption characteristics of the substance being analyzed, maximizing the sensitivity and accuracy of the measurements.

The spectrophotometer and colorimeter are set to a wavelength of 565 nm because it corresponds to the absorption maximum of the substance being analyzed. When electromagnetic radiation, such as visible light, passes through a sample, certain wavelengths are absorbed by the molecules in the sample. The absorbed wavelengths cause electronic transitions within the molecules, resulting in the absorption of specific colors.

By setting the spectrophotometer or colorimeter to a wavelength of 565 nm, we are selecting a specific color of light that is most strongly absorbed by the substance of interest. This wavelength is determined through prior knowledge or experimental determination of the substance's absorption spectrum. It is important to use the wavelength of maximum absorption because it provides the highest sensitivity and accuracy in measuring the concentration of the substance.

Choosing a different wavelength may result in lower sensitivity or potential interference from other substances in the sample. By setting the instrument to the absorption maximum, we ensure that the measured absorbance values are optimized for the substance being analyzed, allowing for accurate determination of its concentration or other properties.

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Answer:

Hydrogen

Explanation:

The noble gas helium is found in the first period in the periodic table. The only element that is also in that period is hydrogen.

Now, helium has two electrons in its outermost shell. It is the first member among the noble gases.

Each hydrogen atom has only one electron. Therefore, when two hydrogen atoms are joined by a singe covalent bond to form hydrogen gas, each hydrogen atom now has two electrons thereby attaining the electronic configuration of helium, the nearest noble gas to hydrogen.

one mole of P weights about 31 grams

in one mole there are 6.022*10^23 atoms

we use the rule of threes

6.022*10^23atoms......weight..........31 grams

3.45*10^23 atoms.........weight...........x grams

x=(3.45*10^23*31)/6.022*10^23

x=106.95/6.022=17.76 grams

Answer:

this reminds me of biology

Explanation:

please dont delete this i'm gonna answer it later

Answer:

Explanation:

D.

carbon and oxygen atoms mixed without being bonded together

The Robinson annulation is a reaction that involves the conjugate addition of a stabilized carbanion to an alpha,beta-unsaturated ketone, followed by intramolecular aldol condensation.

The Robinson annulation reactions are in the image attached below

The reaction proceeds in two steps: in the first step, the carbanion attacks the electrophilic carbon of the alpha,beta-unsaturated ketone, forming a new carbon-carbon bond. In the second step, the newly formed double bond acts as a nucleophile and attacks the carbonyl group of the same molecule, leading to the formation of a cyclic product. The Robinson annulation is a powerful method for the synthesis of cyclic compounds, particularly those containing a six-membered ring with an alpha,beta-unsaturated ketone as a key intermediate.

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Complete question:

Draw the product obtained by heating each pair of ketones in a basic solution.

The figure is in the image attached below

Answer: The average valence electron energy (AVEE) of this element =

1014.2 KJ/ mol  or  1.0142mJ/mol.

Explanation:

The average valence electron energy =  (number of electrons in s subshell  x  Ionization energy of that subshell) + (number of electrons in p subshell  x  Ionization energy of that subshell) / total number of electrons in both subshells of the valence shells.

The 5A elements are non-metals like Nitrogen and Phosphorus with the metallic character increasing as you go down the group, So a new 5A element will have characteristics of its group with 5 valence electron in its outermost shell represented as ns2 np3

Therefore  the average valence electron energy (AVEE) of this element will be calculated as

The average valence electron energy = (2 x 1370  kJ/mol + 3 x 777 kJ/mol.) / 5

2740+2331/ 5 =5071/5

=1014.2 KJ/ mol  or  1.0142mJ/mol.

According to the Planck-Einstein relation, the energy of a photon emitted with a wavelength of 448 nm is 4.44 × 10⁻¹⁹ J.

A photon is a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.

A photon is emitted with a wavelength (λ) of 448 nm. Given the speed of light (c) is 3.00 × 10⁸ m/s, we can calculate the frequency (ν) of the photon using the following expression.

ν = c/λ

ν = (3.00 × 10⁸ m/s ) / (4.48 × 10⁻⁷ m) = 6.70 × 10¹⁴ s⁻¹

We will use the Planck-Einstein relation, being Planck's constant h = 6.63 × 10⁻³⁴ J.s.

E = h × ν

E = (6.63 × 10⁻³⁴ J.s) × (6.70 × 10¹⁴ s⁻¹) = 4.44 × 10⁻¹⁹ J

According to the Planck-Einstein relation, the energy of a photon emitted with a wavelength of 448 nm is 4.44 × 10⁻¹⁹ J.

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Answer:

k = 0.0306 min-1

Explanation:

The table is given as;

Time, Concentration

0 1.48

5 1.27

10 0.98

15 0.84

The integrated rate law for a first order reaction is given as;

ln [A] = -kt + ln [Ao]

where;

[A] = Final Concentration

[Ao] = Initial Concentration

k = rate constant

t = time

In the table, taking the first two sets of values;

t = 5

k = ?

[Ao]  = 1.48

[A] = 1.27

Inserting into the equation;

ln(1.27) = - k (5) + ln(1.48)

ln(1.27)  - ln(1.48) = -5k

-0.1530 = -5k

k = -0.1530 / -5

k = 0.0306 min-1

Answer:

Induction

Explanation:

The process whereby electrons are rearranged without direct contact with one another is called induction.

By induction electrons can get charged without them having to be in contact with one another.

Answer: 1.27 g/cm3

Explanation:

160cm3/126.4 grams

Answer:

Yes, that is correct!

Explanation:

Answer:

Yes

Explanation:

A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted by the two atomic nuclei. A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.

Answer:

c

Explanation:

No, during a course of reaction, multiple activated complexes can be formed for a particular type of reaction. An activated complex is a short-lived, high-energy intermediate state that occurs during a chemical reaction.

Energy is a fundamental concept in physics that describes the capacity of a physical system to do work or produce a change. It is a property of matter and radiation and can be converted from one form to another. There are various types of energy, including kinetic energy (energy of motion), potential energy (energy due to position or configuration), thermal energy (energy due to the temperature of a system), chemical energy (energy stored in the bonds between atoms and molecules), and nuclear energy (energy stored in the nucleus of an atom). The unit of energy is the joule (J) in the SI system.

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The pH of the resulting buffer solution is 4.44.

What is a buffer?

A buffer is a solution that is resistant to changes in pH upon the addition of small quantities of acid or base.

Buffers can be made by mixing a weak acid with its conjugate base or a weak base with its conjugate acid.

The pH of the buffer solution is determined by the pKa and the ratio of the concentration of the weak acid to its conjugate base.

In order for a solution to be considered a buffer, it must contain both a weak acid and its conjugate base or a weak base and its conjugate acid.

Mixing equal volumes of 0.1M NaOH with 0.2M acetic acid creates a buffer solution.

This is because the solution contains a weak acid (acetic acid) and its conjugate base (acetate ion) in roughly equal concentrations.

The acetic acid will partially dissociate to form acetate ion and hydrogen ions, while the NaOH will completely dissociate to form hydroxide ions and sodium ions.

Based on the Ka of acetic acid (1.8×10-5), the pKa can be calculated as:

pKa = -log(Ka)= -log(1.8×10-5)= 4.74

Using the Henderson-Hasselbalch equation: pH = pKa + log([A-]/[HA])= 4.74 + log([0.1]/[0.2])= 4.74 - 0.30= 4.44

Therefore, the pH of the resulting buffer solution is 4.44.

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Answer:

Enthalpy is a property of a thermodynamic system, defined as the sum of the system's internal energy and the product of its pressure and volume, H = U + pV

Explanation:

250 kJ of energy are removed from a 4.00 x 102 g sample of water at 60˚C. Will the sample of water completely freeze: Yes, because there is enough energy.

250 kJ of energy are removed from a 4.00 x 102 g sample of water at 60˚C. Will the sample of water completely freeze: Yes, because there is enough energy.

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