draw the lewis structure for monochloramine, which is a covalent compound with the formula nh2cl. include all nonbonding electrons, such as lone pairs, and any nonzero formal charges.

To demonstrate that material is neither created nor destroyed throughout the chemical, the quantity of particles or mass with in donor ends must match the number the bits of weights in the final sides.

Protons, protons, and particles are three incredibly small subatomic particles that make up an atom. The nucleus, which is made up of protons and neutrons, sits in the middle of an atom, and an electron cloud flies around it.

According to the rule of conservation of masses, masses can change from one form to another but are neither generated nor destroyed.

It simply indicates that the reactant and product masses in a nuclear reaction will be equal.

A equation must be balances in order to follow the rule of conservation of mass. Therefore,

Mg(OH)₂ + 2HNO₃ → Mg(NO₃)₂ + 2H₂O

Therefore, the quantity of atoms or bodies in the reactor sides must match the quantity of atoms or mass in the product sides in order to show why matter is neither generated nor deleted in the chemical process.

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The complete electronic configuration of Mg is 1s² 2s² 2p⁶ 3s² and the electronic configuration of Al is 1s² 2s² 2p⁶ 3s² 3p¹.

The The complete electronic configuration of Mg is 1s² 2s² 2p⁶ 3s² and the electronic configuration of Al is 1s² 2s² 2p⁶ 3s² 3p¹. so Mg has more stable configuration than the Al. removing an electron from the 3s² orbital of Mg requires more energy than removing an electron from the 3p¹ orbital of Al .

However, when adding an electron, the electron affinity for Mg is less negative than that of Al because the electron is being added to sublevel.

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In the Lewis formula for difluorodiazine, N₂F₂, the total number of lone electron pairs around the two nitrogen atoms is 2.

Electron dot structures or Lewis dot formula can be drawn if the molecular formula of the compound is known. It describes the nature of bond and position of atoms of the molecule that are connected in the molecule.

Lewis structures (also known as Lewis dot structures or electron dot structures) are diagrams which represent the valence electrons of atoms within a molecule. These Lewis symbols and Lewis structures help visualize the valence electrons of atoms and molecules, whether they exist as lone pairs or within bonds.

For N₂F₂, total number of lone electron pairs around the two nitrogen atoms is 2, because molecular formula of Nitrogen molecule is N₂. The nitrogen atoms are bonded with triple bonds. So, each of them have a lone pair of electron. Hence, total number of lone pair is 2.

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The balanced chemical equation for the reaction between an acid, acetic acid and base, magnesium hydroxide leads to the production of Mg(CH₃COO)₂(aq) is :

2CH₃COOH(aq)  +   Mg(OH)₂(s)    ---->  Mg(CH₃COO)₂(aq)  +  2H₂O(l)

The reaction with the acid and base is below :

CH₃COOH(aq)  +   Mg(OH)₂(s)    ---->  Mg(CH₃COO)₂(aq)  +  H₂O(l)

acetic acid         magnesium                    magnesium           water

                           hydroxide                            acetate

                    reactant                 product

C                        2                               4

H                        6                               8

O                        4                               5

Mg                       1                               1

the reaction is not balanced the equation multiply by 2 in CH₃COOH and 2 in H₂O , we get

2CH₃COOH(aq)  +   Mg(OH)₂(s)    ---->  Mg(CH₃COO)₂(aq)  +  2H₂O(l)

This is the balanced chemical equation .

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You will need to critical the moles of O2 from its mass and molar mass, then calculate the moles of C2H6 that can be created using stoichiometry.

First Calculate moles of O2.

n = m/M

n = moles = ? mol O2

m = mass(g) = 154 g O2

M = molar mass(g/mol) = (2×15.999 g/mol O) = 31.998 g O2/mol O2

n = m/M = g/g/mol = g × mol/g

n O2 = 154 g O2 × 1mol O2/31.998 g O2 = 4.34 mol O2

The balanced equation is:

2C2H6 + 7O2 → 4CO2 + 6H2O

By using stoichiometry to calculate the moles of C2H6.

Multiply the 4.34 moles of O2 by the mole ratio between O2 and C2H6 in the balanced equation, such that moles of O2 cancel and leave moles C2H6.

4.34 mol O2 × 2 mol C2H6/7 mol O2 = 0.556 mol C2H6 rounded up to three significant figures

1.25 mole of ethane will be required to react with 4.34 g of oxygen gas.

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From the stoichiometry of the reaction, the final molarity of Cr2O7^2- in the solution is 0.039 M.

1) The balanced reaction equation is;

4Cr^3+(aq) + 14HClO(aq) + 14H^+(aq) -----> 28H^+(aq) + 7Cl2(g) + 2Cr2O7^2-(aq)

2) The oxidation number of chromium in Cr2O7^2- is obtained as follows;

2x + 7(-2) = -2

2x - 14 = -2

2x = -2 + 14

2x = 12

x = 6

3) This is an oxidation - reduction reaction because the oxidation number of Cr increased from + 3 to +6.

4) This is because, the reaction produces hydrogen ions causing the pH to decrease.

5) Nitrate does not appear in the balanced reaction equation hence it is a spectator ion.

6) Number of moles of chromium nitrate = 26.5/1000 L × 0.120 M = 0.00318 moles

Since 4 moles of Cr^3+ reacts with 14 moles of hypochlorous acid

0.00318 moles of  Cr^3+ reacts with  0.00318 moles × 14 moles/4 moles =

0.0011 moles

Molarity of hypochlorous acid = 0.0011 moles/0.01 L = 0.11 M

7) If  4 moles of Cr^3+  yields 2 moles of  Cr207^2-

0.00318 moles of  Cr^3+ yields  0.00318 moles ×  2 moles / 4 moles

= 0.00159 moles

Final molarity of   Cr207^2- =  0.00159 moles/(15 mL + 26.5 mL) × 10^-3

= 0.039 M.

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It is observed that the electronegativity difference in the bond between the two atoms is highest in the case of H2O. Thereby, it has a greater ionic bond character.

Pauling proposed quantifying the percentage of ionic character that a chemical link possesses. A complete ionic link would obviously have 100% ionic character, while a covalent bond with an equal share of the charge density has 0% ionic character.

We examine the electronegativity of the two atoms participating in a bond in order to determine its ionic character (or polarity). The connection has a stronger ionic character the larger the difference. The placement of polar bonds in the compound's three - dimensional structure allows us to determine the polarity of the entire complex.

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The balanced chemical equation for the combustion of propane gas would be [tex]C_3H_8 + 5O_2 -- > 3CO_2 + 4H_2O[/tex]

Propane gas burns in oxygen to yield carbon dioxide and water according to the following equation:

[tex]C_3H_8 + O_2 -- > CO_2 + H_2O[/tex]

The equation above is not balanced because it does not conform to the law of conservation of atoms. According to this law, an equal number of atoms of different elements must be in the reactants and the products, irrespective of their forms.

Thus, the balanced version of the equation would be the following:

[tex]C_3H_8 + 5O_2 -- > 3CO_2 + 4H_2O[/tex]

Thus, the slots can be filled accordingly to reflect the balanced equation of the reaction.

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we should recommend the bull market if there is a chance of rising stocks and that would be profitable.

This shows the bull market according to the Dow theory. The Dow theory on stock price movement is a form of technical analysis that includes some aspects of sector rotation. A bull market is the condition of a financial market in which prices are rising or are expected to rise. The term is most often used to refer to the stock market but can be applied to anything that is traded such as bonds, real estate, currencies, and commodities. A bull market is a period of time in financial markets when the price of an asset or security rises continuously. The commonly accepted definition of a bull market is when stock prices rise by 20% after two declines of 20% each. Traders employ a variety of strategies, such as increased buy and hold and retracement, to profit off bull markets.

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Constant volume process is a thermodynamic process which is also known as isochoric process. an example when heat is added to a gas in a container with fixes walls.

The temperature and pressure of a gas will rise when it is heated using a constant volume process, often known as an isochoric process. The gas doesn't perform any external labor because its volume doesn't change. The body of the gas stores all the heat that was delivered as internal energy. It should be emphasized that Gay-Lussac statute controls this procedure. Therefore, there is no work done in a constant volume process. The heating or cooling of the contents of a closed, inelastic container is an example of an isochoric process: The thermodynamic process is the addition or removal of heat; the closed system is established by the isolation of the container's contents; and the constant-volume requirement is imposed by the container's impossibility of deforming. Here, the isochoric process ought to be nearly static.

In a constant-volume process, 209 J of energy is transferred by heat to 1.00 mol of an ideal monatomic gas initially at 300 K. Find (a) the work done on the gas,(b) the increase in internal energy of the gas, and(c) its final temperature.

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Answer:

Allylic: H3C (CH3)2C-CHCH2

Primary: (CH3)2CHCH2CH2

Secondary: (CH3)2CHCHCH3

Tertiary: (CH3)2CCH2CH3

In this classification, the radicals are sorted based on the number of carbon atoms that are bonded to the carbon atom containing the radical. Allylic radicals have a double bond between the carbon atom containing the radical and the adjacent carbon atom, while primary, secondary, and tertiary radicals have one, two, and three carbon atoms bonded to the carbon atom containing the radical, respectively.

The descending order of the strength of the conjugate bases of the given acids is as follows:

Conjugate bases are substances formed when an acid donates its proton.

The strength of the conjugate bases formed from an acid is the inverse of the acid dissociation constant, Ka, of the acid.

The acid dissociation constant, Ka, of the given acid are given below:

The acid dissociation constant, Ka, of hypobromous acid, HBrO, is 2.3 * 10⁻⁹

The acid dissociation constant, Ka, of trioxonitrate (v) acid, HNO₃ is 2.4 * 10¹

The acid dissociation constant, Ka, of water, H₂O, is 1.8 x 10⁻¹⁶

The acid dissociation constant, Ka, of Hypochlorous acid, HClO, is 3.0 x 10⁻⁸

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Given reaction H2 + F2 → 2 HF is a Synthesis reaction.

Synthesis reactions are those that take place when two distinct atoms or molecules interact to create a new chemical or molecule. When a synthesis reaction takes place, energy is often released, and the reaction is exothermic. An endothermic result, however, is also conceivable.

Because several reactants combine to generate a single product, synthesis reactions are also known as combination reactions.

Bonds between two substances are formed during synthesis reactions. As a result, you might want to think about synthesis reactions as processes that help your body create things. Because of this, we can see that synthesis reactions are crucial for both body growth and tissue healing.

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The precessional frequency of the compound's non-equivalent hydrogen atoms affects the signals in NMR. The non-equivalent hydrogens exist in an alternative chemical setting.

The (a) compound has three sets of non-equivalent hydrogens. The methyl hydrogens in (1) are in cis to chlorine. Methyl hydrogens, which are trans to chlorine, make up (2). Next to the chlorine atom are the (3) methyl hydrogens.  The compound in (b) contains one set of non-equivalent hydrogens. The environments of the (1) and (1') methyl hydrogens are identical. The (c) compound has one set of non-equivalent hydrogens. The environments of the (1) and (1') methyl hydrogens are identical. The compound (d) contains one set of non-equivalent hydrogens. The atmosphere contains both the (1) and (1') methyl hydrogens. The compound (e) contains two sets of non-equivalent hydrogens. The chlorine atom is located at the carbon next to the (1), which is trans to the methyl group. The (2) is cis to the methyl group, and a nearby carbon has a bromine atom.

Hence, frequency of the compound's non-equivalent hydrogen atoms affects the signals in NMR.

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1. The pH of 8.0×10−2 M in HNO3 and 0.185 M in HC7H5O2 is 2.12.

To calculate the pH of this mixture, first, calculate the total concentration of the acid. This can be done using the following equation:

Total concentration = 8.0 × 10−2 + 0.185 = 0.193 M

Next, calculate the hydrogen ion concentration (H+) using the following equation:

H+ = 10−2.12 = 5.8 × 10−3 M

Finally, calculate the pH using the following equation:

pH = −log[H+] = −log(5.8 × 10−3) = 2.12

2. The pH of 1.5×10−2 M in HBr and 2.0×10−2 M in HClO4 is 1.76.

To calculate the pH of this mixture, first, calculate the total concentration of the acid. This can be done using the following equation:

Total concentration = 1.5 × 10−2 + 2.0 × 10−2 = 3.5 × 10−2 M

Next, calculate the hydrogen ion concentration (H+) using the following equation:

H+ = 10−1.76 = 5.6 × 10−2 M

Finally, calculate the pH using the following equation:

pH = −log[H+] = −log(5.6 × 10−2) = 1.76

3. The pH of 9.5×10−2 M in HF and 0.230 M in HC6H5O is 0.77.

To calculate the pH of this mixture, first calculate the total concentration of the acid. This can be done using the following equation:

Total concentration = 9.5 × 10−2 + 0.230 = 0.329 M

Next, calculate the hydrogen ion concentration (H+) using the following equation:

H+ = 10−0.77 = 2.3 × 10−1 M

Finally, calculate the pH using the following equation:

pH = −log[H+] = −log(2.3 × 10−1) = 0.77

4. The pH of 0.100 M in formic acid and 5.5×10−2 M in hypochlorous acid is 1.25.

To calculate the pH of this mixture, first, calculate the total concentration of the acid. This can be done using the following equation:

Total concentration = 0.100 + 5.5 × 10−2 = 0.105 M

Next, calculate the hydrogen ion concentration (H+) using the following equation:

H+ = 10−1.25 = 8.0 × 10−2 M

Finally, calculate the pH using the following equation:

pH = −log[H+] = −log(8.0 × 10−2) = 1.25

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TRUE, There are several valid ways to represent an organic structure In a structural formula, all atoms and bonds are shown.

Organic chemistry is a branch of chemistry that studies the structure, properties, and reactions of organic compounds and organic materials, which are matter in various forms that contain carbon atoms. Structure research determines their structural formula. The primary distinction between these organic compounds and inorganic compounds is that organic compounds always contain a carbon atom, whereas most inorganic compounds do not. Almost every organic compound contains a carbon-hydrogen or a simple C-H bond.Chemical bonds between atoms in a molecule are identified by structural formulas. A structural formula is made up of atom symbols connected by short lines representing chemical bonds—one, two, or three lines representing single, double, or triple bonds, respectively.

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The Second Law of Thermodynamics states that thermal energy can only be transferred from a cooler location to a warmer location when work is done.

This means that energy cannot spontaneously move from a cold body to a hot body; rather, energy must be input into the colder body in order to move it to the warmer body.

This is because thermal energy always flows from high temperature to low temperature, rather than the other way around. The work done must be greater than the thermal energy being transferred, so that the thermal energy can be transferred from cold to hot.

This is because energy is always conserved, so any energy that is gained from the transfer must be greater than the energy that was put in.

The Second Law of Thermodynamics is essential in understanding the behavior of many physical processes, such as the flow of heat and the efficiency of engines.

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All characteristics of a molecule, including resonance, can be precisely defined by bond line configurations. these is correct option is resonance stabilization occurs due to the delocalization of electrons.

Resonant molecules are more stable than non-resonant ones because resonance enables delocalization, where the total energy of a molecule is reduced because its electrons inhabit a larger volume. We refer to these compounds as resonance stabilized. Resonance structures are employed when a single Lewis structure is insufficient to properly explain the bonding. Some compounds have two or more resonance structures, which are chemically similar Lewis electron structures.

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Answer:

Multi cellular

Explanation:

As it has more than one cell

Answer:

giant water lily is is multi cellular

There are several methods that can be used to separate zinc from brass. One method is to use a chemical process called solvent extraction, which involves dissolving the brass in a chemical solvent that will selectively extract the zinc. Another method is to use electroplating, which involves using an electric current to coat the brass with a layer of pure zinc. Once the zinc has been separated from the brass, it can be recovered by heating the brass to a high temperature, causing the zinc to vaporize and be collected.

structure II is correct answer

in NMR peak spectrum at 12 ppm is only for the carboxylic acid peak

in given options there is only one option with carboxylic acid functional group .therefore the answer is structure 2 is correct answer

Structures are compatible with this spectrum since no response would occur in the absence of rotation. The change in light intensity with regard to wavelength or frequency is referred to as a "spectrum." While a spectroscope is used to see spectra visually, a spectrograph is a device used to record or map spectrum.

Options and reference diagram are provided in below the solution.

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Answer:

D

Explanation:

Protons are a positively charged subatomic particles, neutrons have no charge, and lastly, electrons are a negatively charged subatomic particles.

Answer:

Synthesis reactions are also called combination reactions because multiple reactants form a single product.

Answer:

Explanation:

synthesis is a word that means ,   start from the bottom and work up, or put it together from parts.  

So that is saying, what is the reaction when elements / molecules are combined

Because the Xe atoms in sample 2 are closer together, the intermolecular attractions increase, causing the gas to deviate more from ideal behaviour.

Elastic collisions occur between molecules in an ideal gas. When compared to the distance between two molecules, the molecules in an ideal gas are very small. As a result, unlike in Sample 1, there are no attractive forces between the molecules. • In Sample 2, the molecules are very close to each other and will be attracted by other molecules. The term ideal gas makes reference to a purely theoretical gas made of molecules that adhere to a few rules: The molecules of a thermodynamic equilibrium need not attract or repel one another. An ideal gas is one where both the volume of molecules and the forces between both the particles are so small that they no effect just on gas's behaviour.

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Uranium-235, with a half-life of 713 million years, decays to lead-207. The rock sample contains U-235 and Pb-207 in a ratio of 1:3. The age of the rock is 1426000000 years old (option b)

The decay formula is given by:

N(t) = No (1/2)^(t/T)

Where:

N(t) = remaining quantity after time t

t = elapsed time

No = initial quantity

T = half-life

However, for simple number such as in the problem, we can solve it without formula. Given the ratio:

        U-235 : Pb-207 = 1 : 3

It means the remaining uranium is 1/4 of its initial quantity.

Suppose the half-life is T and initial quantity is No, it means:

        after time T, the quantity becomes 1/2 No

        after time 2T, the quantity becomes 1/2 x (1/2 No) = 1/4 No

Hence,

rock's age = elapsed time

                  = 2T = 2 x 713 million years old

                  = 1426000000 years old (option b)

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The best diagram to represent N₂O is the second diagram which is shown in the attached image.

The Lewis diagram is used to represent the way two or more atoms bond. This is possible by using lines to represent bonds and dots to represent electrons.

In the case of the molecule N₂O bonding occurs in the following way:

A triple bond is formed between the nitrogen atoms, which means,  in the Lewis diagram the nitrogen atoms are connected with three lines.

The oxygen atom connects to one of the nitrogen atoms.

The nitrogen atom that is not connected to the oxygen will have 2 electrons represented by dots because the number of valence electrons is 5, but three were used in the triple bond.

The oxygen atom will have 6 electrons represented by dots, which are equal to the number of valence electrons.

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The combustion reaction is to rate the Stoichiometric coefficient.

What is combustion ?

Combustion is a chemical reaction that often involves the presence of oxygen and produces heat and light in the form of flames.

What is Stoichiometric coefficient ?

To maintain an even distribution of each element on the reactant and product sides of the equation, the stoichiometric coefficient is the number placed in front of atoms, ions, and molecules in a chemical process. Despite the fact that the stoichiometric coefficients might be fractions, whole numbers are routinely employed and frequently preferable.

CH4(g)+2O2(g)→CO2(g)+2H2O(g)

(1,2,1,2) are the coefficients that are needed to balance the equation for the combustion of methane.

Therefore, the combustion reaction is to rate the Stoichiometric coefficient.

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The chemical process known as combustion reaction occurs when a hydrocarbon combines with an oxygen-containing gas to form carbon dioxide and water molecules.

The term "hydrocarbon" refers to substances that include covalent bonds between hydrogen and carbon atoms. Other substances besides carbon and hydrogen may potentially exist.

Because methane is a hydrocarbon, it can undergo combustion to produce carbon dioxide and water. CH4

Because glucose is a hydrocarbon, it can undergo combustion reactions that result in the production of carbon dioxide and water.

Water is the sole result of combustion that CH2 hydrogen can undergo.

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Depending on whether they consume adenosine triphosphate (atp) energy or create it to store as atp, reactions or processes are classified as follows: Energy used = molecular transport, anabolic reaction.

Oxidation of lipids and catabolic process = energy stored.

Cells can utilise the energy provided by ATP for things like energy-absorbing processes (carb and protein synthesis). transport electrical signals between the nerve cells. Between endergonic (energy-consuming) and exergonic (energy-releasing) reactions, it transports energy.

By rupturing and re-forming the links between its phosphate groups, ATP may quickly release and store energy. Because of this quality, ATP is a very valuable basic energy source for all cells.

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The propane nitrile react with the Grignard reagent in the presence of the diethyl ether the product form is called as the ethyl phenyl ketone.

The reaction in between the propane nitrile and the Grignard reagent is given as follows :

                                                   diethyl ether

CH₃ - CH₂ - C ≡ N  +  ph - MgBr  ---------->   CH₃ - CH₂ - C - ph

propane nitrile                                                                   ||

                                                                                          O

                                                                      ethyl phenyl ketone

The Grignard reagent is a type of the organometallic compound. the general formula for the grignard reagent is R - X. the very common use of grignard reagent is the in the organic synthesis.

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