number 3 ...................​

Scope 1 emissions are greenhouse gas (GHG) emissions that are directly caused by an organization's activities. Scope 2 emissions are GHG emissions that result from the generation of electricity, heat, or steam that an organization consumes.

Scope 1 emissions are greenhouse gas (GHG) emissions that are directly caused by an organization's activities. These emissions are emitted from sources that are owned or controlled by the organization, and are a result of the organization's operations. Examples of scope 1 emissions include emissions from fuel combustion in company-owned vehicles and emissions from on-site fuel-fired boilers or heaters.

Scope 2 emissions are GHG emissions that result from the generation of electricity, heat, or steam that an organization consumes. These emissions are often referred to as "indirect emissions" because they are not directly emitted by the organization itself, but rather by the source of the energy that the organization consumes. For example, if an organization consumes electricity from a coal-fired power plant, the emissions from the power plant's fuel combustion would be considered scope 2 emissions for the organization.

Scope 1 and 2 emissions are often referred to as "direct emissions" because they are caused directly by the activities of the reporting organization. In contrast, scope 3 emissions, also known as "other indirect emissions," are those that result from activities that are not under the control or ownership of the reporting organization, but are a part of its value chain.

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Your brain's stress-reduction mechanisms are activated when you smile. Neuropeptides are these chemicals that let neurons in your brain communicate with one another. Dopamine, endorphins, and serotonin are also released by smiling in the brain.

Why is smiling so essential?

Studies have shown that in addition to the endorphins that people release, smiling can also reduce stress, blood pressure, blood sugar, and blood sugar levels, strengthen immune systems, and release serotonin and natural painkillers. Attracts People to You - A smile frequently relaxes other people.

Your brain's stress-reduction mechanisms are activated when you smile. Neuropeptides are these chemicals that let neurons in your brain communicate with one another. Dopamine, endorphins, and serotonin are also released by smiling in the brain.

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The compound NH₄⁺ is tetrahedral in geometry and is non-polar. SO₂ is polar in nature and has a bend shape. CHCl₃ is tetrahedral and it is polar.

Polar compounds are those having a permanent dipole moment. When the atoms bonded together have significant difference in electronegativity the electrons will attracts more to the highly electronegative atom and there occurs a net dipole moment results in polarity.

The ammonium ion NH₄⁺ is a tetrahedral molecule having no polarity. The dipole moments cancel each other due its tetrahedral nature. SO₂ is bend in geometry due to the presence of lone pair of electrons on oxygen atom. It is a polar compound.

The compound trichloromethane has a net dipole moment and it is polar with a tetrahedral structure.

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structure BrF₂ attached below and it have 20 electron valency.

The Lewis structure of BrF₂⁺ can be illustrated as follows:

Take the valence electron count as the first step.

With 7 valence electrons each, the halogens bromine and fluorine belong to the 17th group of the periodic table.

The bromine atom in BrF₂ has 7 outermost valence shell electrons.

BrF₂ has 7 electrons in the fluorine atom's outermost valence shell.

Due to the presence of two fluorine atoms in bromo difluoride, a total of 7+7(2) = 21 valence electrons are available. and BrF₂⁺ means it donate their proton so there gonna be 20 valence electron.

The second step is to place the least electronegative atom possible in the middle of the molecule.

From the top of the group in the periodic table to the bottom, the value of electronegativity drops. Therefore, the electronegative value of bromine is lower than that of fluorine.

The bromine atom is preserved in the middle of the molecule and is surrounded by two fluorine atoms since it has the least electronegativity.

Then Place two electrons to symbolize a link between the atoms.

Of order for the atoms in a BrF₂⁺ molecule to make bonds with one another, place two electrons between each bromine and fluorine atom.

The remaining unbonded electrons are divided among the atoms to complete the octet.

The BrF₂⁺ molecule contains a total of 20 valence electrons. Four of these are utilised to form bonds with the bromine and fluorine atoms, leaving the remaining 16 electrons unconnected.

To complete the octet, each fluorine atom needs six non-bonded electrons and two electrons from the single bond it created with bromine. The BrF₂⁺ molecule requires 12 non-bonded electrons because it contains two fluorine atoms.

The central bromine atom will continue to receive the remaining five unbonded electrons, and four additional electrons will be used to create the single bond with the fluorine atoms. As a result, bromine gains a total of nine electrons, expanding into an octet.

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The atoms and ions that are paramagnetic are [tex]Mn^{2+}[/tex] and Sn and the atoms and ions that are diamagnetic are [tex]Al^{3+}[/tex] and Zn.

Paramagnetic ions or atoms are when the ions or atoms have at least one unpaired electron. Diamagnetic ions or atoms are when the atoms or ions don't have any unpaired electrons.

To find if the ions have unpaired electrons or not, we must write electron configuration. So,

For [tex]Mn^{2+}[/tex] electron configuration is [tex][Ar]3d^54s^0[/tex], it is paramagnetic.

For [tex]Al^{3+}[/tex] electron configuration is [tex][He]2s^22p^63s^03p^0[/tex], it is diamagnetic.

For Zn electron configuration is [tex][Ar]3d^{10}4s^2[/tex], it is diamagnetic.

For Sn electron configuration is [tex][Kr]4d^{10}5s^25p^2[/tex], it is paramagnetic.

Your question is incomplete, but most probably your full question was

(image attached)

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The pressure of a sample of pure, gaseous hydrocarbon introduced into a previously evacuated rigid 1.00L vessel will be 0.00 atm.

The sample of gas is pure, so the pressure will depend only on the number of molecules in the vessel and the temperature. This can be calculated using the Ideal Gas Law, which states that ,

PV=nRT.

The term n is the number of moles of gas, R is the gas constant (8.314 J/(K⋅mol)), and T is the temperature in Kelvin.

Therefore, the pressure can be calculated as:

P = nRT/V

Where P is the pressure in atm, V is the volume of the vessel in liters, and n and T are as described above.

Since the sample of hydrocarbon is pure, the number of moles (n) can be calculated from the mass of the sample. Assuming the sample is introduced into the vessel at room temperature (25°C = 298K), the pressure of the gas can be calculated as:

P = (m/M)(8.314 J/(K⋅mol))(298 K)/1.00L

Where m is the mass of the sample and M is the molar mass of the hydrocarbon.

Therefore, the pressure of a sample of pure, gaseous hydrocarbon introduced into a previously evacuated rigid 1.00L vessel will be 0.00 atm.

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Answer:

A

Explanation:

"Nonmetals tend to be gases or liquids at room temperature and are found on the right side of the table."

This can be observed using a labelled periodic table.

Answer:

inner transition elements.

Explanation:

right answer

Examples of scope 2 emission are, the electricity and natural gas that is purchased from the local power utility and energy consumption that purchased from the utility.

The Scope 2 emissions are the indirect emissions from the generation of purchased energy from a utility provider. All GHG emissions released in the atmosphere from the consumption of purchased electricity, steam, heat and cooling. For most organizations, electricity will be the unique source of scope 2 emissions. Scope 2 covers the electricity consumed by the end user. We can use the simple term “buy” for the scope 2 emission because the organization typically buys energy to run its operations. This emissions come from purchased electricity, steam, heating, or cooling.

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The periodic table's third period (row) element, aluminum, has three valence electrons.

Therefore, gallium has three valence electrons. By sharing electrons, atoms can join to form an octet of valence electrons. Consequently, a substance with three electron shells is classified as Period 3.

Lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon are among the elements found in the second period. This time frame corresponds to the filling of the second (n = 2) shell, notably its 2s and 2p subshells, in a quantum mechanical description of atomic structure.

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When the concentration of a substance is 0.1, the freezing point depression will be the maximum.

The temperature when a substance changes into a solid is known as the freezing point.. It is the point when the molecules in a liquid gain enough energy to form solid crystals and form a solid. Freezing point depends on the type of substance and the pressure. For example, water freezes at 0°C (32°F) at 1 atmosphere of pressure. However, some substances freeze at temperatures below 0°C and some substances do not freeze solid at all. The freezing point of a substance is an important physical property that can be used to identify it.

This is because the freezing point depression increases with the increase in concentration. The freezing point depression for a 0.1 molar solution is approximately 1.86°C. This means that the freezing point of a 0.1 molar solution is 1.86°C lower than the freezing point of pure solvent. This effect is due to solutes interfering with the hydrogen bonding between molecules of the solvent and therefore decreasing the freezing point.

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In a control experiment, to validate the amount of HCl neutralized by an antacid, at the end of experiment antacid would not be present.

The following net-ionic equation describes how a strong acid and a strong base react together: H₃O⁺(aq) + OH⁻(aq) → 2H₂O(l). The pH of the resulting solution can be calculated from the concentration of the excess reactant if either the acid or the base is in excess. The solution has a pH of 7.00 at 25°C if the acid and base are equimolar.

Contrarily, weak bases only partially react with water to form hydroxide ions, whereas strong bases completely react to form the hydroxide ion. A strong acid and strong base react by neutralizing one another, which results in the production of salt and water.

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Explains other concepts such as molecules and reactions.

Explanation: Bond parameters, covalent compounds, hybridisation, hydrogen bonding, ionic or electrical ent compounds, and resonance structures

H2SO4 solution will freeze at the lowest temperature.

What is freezing point?

A solution's freezing point is lesser than that of the pure solvent. This signifies that freezing can only occur when a solution is reduced to a lower temperature than the pure solvent.

We have four solutions,

1.0 M NaOH

Pure water

1.0 M H2SO4

1.0 M C6H12O6

As, freezing point of solution ∝ 1\number of ions\ moles produced

1. NaOH= Na+ + OH-   (Number of ions= 2)

2. H2O + H2O = H3O+ + OH- (Number of ions= 2)

3. H2SO4 = 2H+ + SO42- (Number of ions= 3)

4. Glucose will not dissociate in any extent.

Therefore, freezing point of solution is least when it contains 1.0 M H2SO4 in it, as number of ions is maximum among these (3).

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Complete question:

Which solution will freeze at the lowest temperature? 1.0 M NaOH Pure Water 1.0 M H2SO4 1.0 M C6H12O6.

If the given word equation is rewritten as a balanced chemical equation, the coefficient for fluorine will be 3 and the symbol for fluorine will be F.

A balanced chemical equation is one in which the number of atoms of each element on the left side of the equation is equal to the number of atoms of each element on the right side of the equation. In the case of the given equation, the balanced chemical equation would be:

N2 + 3F2 → 2NF3

In this equation, the coefficient for fluorine (F2) would be 3 and the symbol for fluorine would be F. This means that there are three molecules of fluorine present in the reaction, and the symbol for fluorine is F.

In summary, if the given word equation is rewritten as a balanced chemical equation, the coefficient for fluorine will be 3 and the symbol for fluorine will be F.

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The rate constant of a first-order reaction is 0.145 s⁻¹. The rate constant of the second-order reaction is 1.322  M⁻¹s⁻¹.

The rate of reaction can be demonstrated as the speed at which the products in a chemical reaction are produced from the reactants. Rate gives information on how much time is required for the reaction to be completed.

The rate of reaction can be defined as the speed of a reaction at which reactants are converted into products. Some reactions can be instantaneous, while some take a little longer to achieve the final equilibrium.

Given, the reaction is A → B

Given, the rate of reaction = 1.6 × 10⁻² M/s

The initial concentration of reactant A = 0.11 M

The rate constant of first-order reaction, Rate = k [A]

1.6 × 10⁻² = k ×0.11

k = 0.145 s⁻¹

The rate constant of second-order reaction, Rate = k [A]²

1.6 × 10⁻² = k ×(0.11)²

k' = 1.322  M⁻¹s⁻¹

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Three levels of electron energy are present in the magnesium atom (shells).

Magnesium and aluminum are a desired alloy because it combines strength and lightweight while having a lower density than aluminum. All cells and almost 300 enzymes depend on this element, which is the tenth most prevalent element by mass in the human body. An atom's mass is its atomic mass. Because it relates to the mass of a single particle, the atomic mass or relative isotopic mass is associated with a particular isotope of an element. Magnesium has an atomic mass of 24.305 u. Magnesium's typical isotopes have masses of 24, 25, and 26. 12 is the atomic number.

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A mixture of 50g of 20C water and 80g of 40C water has a temperature of 30C.

T is equal to M1 (50g), M2 (25g), and M1 (25g). T1 : 20C

M2 : 50g. T2 : 40C

final temperature: (50*20+50*40)/50+50 :. (3000)/100 : 30C for M1T1+M2T2/M1+M2.

The ° symbol is typically used to denote temperature measurements in degrees rather than the written word, with a space following the number but not the symbol and the temperature scale: 80 °C was applied to the sample.

Chemistry relies heavily on temperature as a factor. It is due to an increase in the material's temperature that a substance transforms from solid to liquid. Increasing the temperature frequently hastens chemical processes.

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Carbohydrates require carbon as their primary component. There is carbon in every known carbohydrate. All carbohydrates also contain hydrogen and oxygen atoms, with the exception of a few simple sugars, which only contain carbon and hydrogen atoms.

Carbon, hydrogen, and oxygen atoms make up the macromolecules known as carbohydrates. They are a significant energy source. They can be found in fruits and vegetables as sugars, starches, and fibre. What categories do the carbs fit into? Starchy meals are complex carbohydrates because they include two or more sugar units. Compared to simple carbs, complex carbohydrates' molecules digest and transform more slowly. They are widely distributed in whole-grain bread, cereals, lentils, beans, peanuts, potatoes, peas, and corn. As one of the three primary macronutrients, carbohydrates are one of the three.

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Hybridization of oxygen is Sp³ and hybridization of carbon is Sp³ .Due to the polarity of the carbonyl group, which results from the electronegativity differences between the oxygen and carbon atoms, acetone is a polar chemical. As a result, Acetone has a dipole moment of about 2.69. Lewis Structure, Molecular Structure and isomer are attach in image below.

The organic molecule acetone has the chemical formula (CH3)2CO. The smallest and most basic ketone. It is a colourless, flammable liquid with a distinctively strong odor that is also highly volatile. Because it is miscible with water, acetone is used as a significant organic solvent in industry, the household, and laboratories.

Acetone is a ketone, whereas alcohols belong to a separate class known as alcohols. Alcohols can be created from ketones (reacting with hydrogen or another reducing agent). Ketones can isomerize to unsaturated alcohols under specific circumstances.

Thus,  Acetone has a dipole moment of about 2.69.

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The chemical reaction takes place when a substrate is chemically altered by an enzyme after entering the active site of the enzyme.

At the enzyme's catalytic site, which is where the reaction takes place, this chemical modification of the substrate occurs. The substrate may engage in a number of chemical reactions at the catalytic site, such as the transfer of a chemical group or the breaking or forming of chemical bonds. The enzyme and the substrate in question determine the specific kind of chemical reaction that occurs.

One or more products are produced as a result of the chemical modification of the substrate and are then released by the enzyme. The chemical is then accessible to tie and catalyze the response with extra substrate atoms.

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A business is considered carbon neutral if it has net zero carbon emissions, meaning that it has balanced its GHG emissions with an equivalent amount of GHG reductions or removals.

To determine if a business is carbon neutral, the following steps can be taken:

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The freezing point of aqueous solution containing 18 gram of c6 h12 o6 in thousand gram of water is -1.76°C.

Aqueous solution is a solution created by dissolving a solid, liquid, or gaseous substance in water. Water is the most common solvent used to create aqueous solutions, and it is universal solvent due to its chemical properties. Aqueous solutions are a common form of solution found in every day life, such as in household cleaners, cooking ingredients, and even medication. Aqueous solutions are incredibly useful and versatile, as they can be easily manipulated with other substances to create various different solutions.

This is because the freezing point depression of a solution is proportional to the amount of solute present. The freezing point depression for a 1 molar solution of glucose is 1.86°C, so the freezing point of a solution containing 18 grams of glucose in 1000 grams of water is calculated as 1.86°C x (18/180) = -1.76°C.

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A lithium atom has a charge of three. As a result, a nitrogen atom will produce an anion with a charge of 3 and three more electrons than protons. The ion is known as a nitride ion and has the symbol N3 for it.

There are protons, neutrons, and electrons, three types of subatomic particles. Protons and electrons, two of the subatomic particles, each have an electrical charge of one or the other. On the other hand, neutrons lack a charge.

Triatomic molecules are made up of three atoms, which can be from the same chemical element or another. Examples include H2O, CO2, HCN, and O3 (see image) (ozone).

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4 liters of the 70% solution are required by the chemist.

8 liters of saline solution divided by 25%

Saline solution at 25% = 0.25 x 8 = 2 liters

Let there be x liters of saline solution at 70%.

Salt = 8 plus x

40% of salt is equal to 25% of saline solution plus 70% of saline solution.

2 + (70/100)x = (40/100)(8 + x)

2 + 0.7x = 0.4(8 + x)

2 + 0.7x = 3.2 + 0.4x

0.7x - 0.4x = 3.2 - 20.3

x = 1.2

x = 1.2 / 0.3

x = 4

4 liters of the 70% solution are required by the chemist.

The following equation can be used to determine the volume or concentration of a concentrated or diluted solution: M1V1 = M2V2.

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The ksp for silver sulfate if the solubility of ag2so4 in pure water is 4.5 g/l is 1.2x10-5.

The Ksp is the solubility product, which is the product of the ions increased to their coefficients. This is based on the chemical equation's mole ratio. The stoichiometry of the dissolving reaction influences the relationship between solubility and solubility product constant. When two ionic compounds share an ion, the solubility of a sparingly soluble ionic material is considerably reduced in a solution of another ionic molecule.

The equilibrium constant for the dissolving of a solid material into an aqueous solution is the solubility product constant. It's represented by the symbol Ksp. The solubility product is a type of equilibrium constant whose value varies with temperature.

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Boiling point of solution when 0.6 g of urea is dissolved in 100g of water, is 100.052°C.

Urea mass = 0.6 g

Water's mass is 100 g, or 0.1 kg, and its molarity is 0.6/60*0.1, or 0.1 M.

Boiling point increase = Tb

Boiling point of the solution is calculated as Kb*m = 0.52*0.1 = 0.052 K.

Pure water has a boiling point of T = 373 K.

Tb = Tb - T Tb

= Tb + T 373 + 0.052

= 373.052 K

= 100.05 °C

Consequently, the solution's boiling point is 100.052°C.

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Complete question: When 0.6g of urea dissolved in 100g of water, the water will boil at (Kb for water=0.52kJ.mol −1 and normal boiling point of water =100 ∘ C).