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The estimated nuclear charge on an electron in a 30 orbital of chlorine atom is 6.1

The charge that the outermost valence electrons of any many-electron atom experience is known as the effective nuclear charge. This is done by taking into account how many shielding electrons there are surrounding the nucleus. Rule of Slater: The effective nuclear charge that an electron in a multi-electron atom experiences is measured using this method. This rule states that the screening effect of the other electrons in the atom causes the actual nuclear charge an electron experiences to be smaller than the actual nuclear charge. An atom's distribution of electrons within its atomic orbitals is known as its electronic configuration.

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Answer:

Gas

Explanation:

Similarly,if we heat a volume of water above 100 degrees Celsius, or 212 degrees Fahrenheit, water changes it's phase into a gas called water vapor

The minimal concentration of chloride ion is 1.67 × 10 ⁻³ M

Concentration is the abundance of a constituent divided by way of the overall volume of an aggregate. several sorts of mathematical descriptions may be outstanding: mass concentration, molar concentration, variety concentration, and extent awareness.

The concentration of a substance is the quantity of solute found in a given amount of solution. Concentrations are normally expressed in terms of molarity, defined because of the variety of moles of solute in 1 L of answer.

The Concentration of an answer is a measure of the quantity of solute that has been dissolved in a given amount of solvent or answer. A concentrated answer is one that has a rather huge quantity of dissolved solute.

calculation:-

2NaCl + Pb ⁺² ------------>  PbCl₂

  Ksp = [Pb⁺][Cl⁻]²

   [Cl⁻]       =  [tex]\sqrt{ \frac{Ksp}{[Pb+]}[/tex]

                 = [tex]\sqrt{ \frac{1.4×10^{-8} }{0.0049}[/tex]

                 = 1.67 × 10 ⁻³ M

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The result of the test is that the smaller object will have a greater change in motion. Option A

In the simplest sense of the word, a force could be regarded as a push or a pull. We can see that the object irrespective of the mass of the object would continue to be at rest until it is acted upon by a force.

In this question, we are told that Joey is thinking about applying an equal push force to two objects, one with a small mass, and one with a large mass. The force that could move the small mass may not move the large mass due to inertia.

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The concentration of Cd⁺² is  8.8×10⁻⁶mol/lit.

When there is no tendency for reactant and product quantities to fluctuate, a chemical reaction is in equilibrium. It is up to us to decide which components of a chemical reaction are deemed reactants and which are products, as well as the direction in which we write about them.

Cd(OH)₂ → Cd⁺² +2OH⁻

                    ↓

                   1mg/lit

Mass of Cd⁺² ⇒ 1mg/L×1 lit

Mass of Cd⁺² ⇒ 10⁻³gm

Mole of Cd⁺² → 10⁻³/112.4g/mol

Mole of Cd⁺² → 0.0088×10⁻³

Volume of Cd⁺² → 1Lit

Concentration of Cd⁺² →0.0088×10⁻³/1

Concentration of Cd⁺² → 8.8×10⁻⁶mol/lit.

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The shore of Lake Assal in Djibouti is the lowest point on land in Africa. This point is 153 meters below sea level. Using equations 10.3 and 10.4, the temperature required to boil water on the shore of Lake Assal would be 82.6 degrees.

Sea level is described as an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured.

Sea level rise is as a result of two primary factors related to global warming:

We are going to use the formula that says "Fahrenheit is equal to 9/6 times C plus 32.

where c = 32

Fahrenheit  = 9/6 * 28.1 + 32

Fahrenheit = 82.6 degrees.

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The original concentration of the solution will be 2.1 × 10⁻³ m

Dilution factor is the ratio to dilute the stock solution. This can be expressed as the ratio of the volume of the final diluted solution to the initial volume removed from the stock solution.

Differs from dilution factor. Dilution ratio refers to a simple dilution ratio that combines a unit volume of solute with the desired volume of solvent. On the other hand, the dilution factor refers to the ratio between the volume of the initially concentrated solute and the volume of the final diluted solution. Which is DF = Vₙ / V₀

For the given question,

Vₙ = DF × V₀

Where, Vₙ = Final concentration of the serial dilution

V₀ = Original concentration of the solution

DF = Dilution factor

Since the solution is diluted 6 times then

Vₙ = 1/5⁶ × V₀

1.4x10⁻⁷ = V₀/15625

V₀ = 15625 × 1.4x10⁻⁷

V₀ = 2.1 × 10⁻³ m

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An ammonia buffer solution contains 0.18 m NH₄ and 0.27 m NH₃ the pka of ammonium is 9.24  and the pH of the buffer is  9.41

pH means a measure of how acidic or basic a substances or solution

Here given data is

Pka of NH₄  = 9.24

Concentration of NH₄ = 0.18 M

Concentration of NH₃ = 0.27 M

Then we have to calculate pH =?

The pH of buffer solution can obtain by using the Henderson Hassel Bach equation

pH = Pka + log [base]/[acid]

pH =  9.24 + log [NH₃]/[NH₄]

pH = 9.24 + log [0.27 M[/[ 0.18 M]

pH = 9.24 + log [1.5]

pH =  9.24 + 0.176

pH = 9.41

pH of the buffer is 9.41

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The corresponding match for each element is as follows:

Silicon, Arsenic, and Antimony - Metalloids

Can exchange electrons with each other to form ionic compounds _ Metals and non-metals

May have no luster - Metalloids and Non-metals

Tin, Calcium, and Potassium - Metals

Hydrogen, Oxygen, and Chlorine - Non-meatals

Can be electrical conductors - Metals and metalloids

Comprised of atoms - all

The elements can be classified into three;

Each of these classes of elements has its own unique properties. The properties of the three classes of elements include the following:

Metals - metals are hard and mostly solid substances with luster. They are good conductors of heat and electricity. Metals form ionic compounds with non-metals by exchanging their electrons. Examples are calcium, sodium, copper

Metalloids - they are mostly solid substances that are intermediate conductors of heat and electricity. They may have no luster. Examples are Silicon, Arsenic, and Antimony.

Non-metals - non-metals are soft and mostly gaseous substances with no luster. They are poor conductors of heat and electricity. Non-metals form ionic compounds with metals by exchanging their electrons.

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The polarity equation is given, masks are divided by smaller mosques, and all are divided by the volume of solution in liters.

As a result, we will obtain a number closer to 1.49. Thus, the original solution's polarity is as follows.

The amount of a substance in a specific volume of solution is known as its molarity (M). The number of moles of a solute per liter of a solution is known as molarity. Molarity is defined as the number of moles of solute per liter of solution.

The moles of solute per liter of solution is measured as molarity. For instance, when table salt is dissolved in water, water serves as both the solution and the solute. Sodium chloride weights 58.44 grams per mole. One liter of water and 58.44 grams of sodium chloride combine to form one molar solution, or 1M.

100 g of a solution Additionally, it is assumed that the starting density is 1.02 grandpa. We can therefore determine the volume or solution from this information. Volume of the solution is therefore equal to the solution's mass divided by its city. So we have 100 g of solutions here. Therefore, 100 g make up the majority of the solution. Divided by the solution's density, 1.02 grandpa is obtained. The result will be 98.04 cm. The volume motor solution is now available. Next, we may determine the initial solution's polarity. As a result, we have the polarity equation, which is provided as smaller mosque divided by masks.

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Answer:

B

Explanation:

Ozone (O3) is a gas which is present naturally within Earth's atmosphere. It is formed of three oxygen atoms (giving it the chemical formula, O3).

C₁OH₈ formula is an alkene hydrocarbon in the nature of its existence.

What are hydrocarbons?

The only two types of atoms that make up all of an organic complex called a hydrocarbon are carbon and hydrogen. The majority of the time, hydrocarbons are colourless gases with hardly detectable odours. Alkanes, alkenes, alkynes, and aromatic hydrocarbons are the four subcategories that are generally used to classify hydrocarbons. These compounds can have relatively simple structures or relatively complex structures.

The study of hydrocarbons can shed light on other functional groups' chemical composition and behaviour. Liquefied petroleum gas, which is derived from hydrocarbons like propane and butane, is also employed as a source of fuel for commercial reasons (LPG). One of the most basic aromatic hydrocarbons, benzene, is used as the starting point for the creation of numeroubrainly.com/question/17578846s synthetic medications.

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The statement which best describes the most likely effect of the mismatch on future birds is that there could be a shift to later reproduction in the birds and is therefore denoted as option C.

This is referred to as the process in which an offspring is produced from their parent or cells and involves the fusion of gametes.

In the effect of mismatch on future birds, there will be a reduction in the birds getting a mate which therefore shift to later reproduction and is therefore the reason why option C was chosen as the correct choice.

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The statement that describes the most likely effect of the mismatch on future birds is that there could be a shift to later reproduction in the

birds.

So option C is correct.

Reproduction is described as the biological process by which new individual organisms offspring are produced from their "parent" or parents.

If there is mismatch on future birds, one of the many effects is that there could be a shift to later reproduction in the birds which the consequences of such mistiming in reproduction are reduced reproductive output.

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The pH at midpoint in the titration will be 3.16

The pH at the midpoint of the titration (the half-equivalence point) will be equal to the pKa of nitrous acid i.e. 3.16. The calculation is quite simple as the Ka value is 4.0 x 10^-4. To find pKa =  -log Ka.

Thus, pKa = -log (4.0 x 10^-4) = 3.16

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according to the above assertion, melting gold is simpler than boiling it.

Evaporation is the transformation of a liquid into its vapor when it occurs below the liquid's boiling point. The transition from a liquid into a gas is known as condensation. The rate of evaporating increases as the temperature rises.

The process through which a solution boils and transforms into a gas is known as vaporization. Although evaporation doesn't involve boiling, vaporization is frequently confused with evaporation. The boiling point of a liquid is the heat at which it begins to turn into a gas. Pure water reaches its boiling point at 100°C.

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Answer:

Divide the body mass by the body volume to determine density.

:

the heat of the water

Explanation:

water heat boils and starts to mske water vapor.

The energy transfer in the form of light or heat is called radiant energy. Thus the flow of electric current can be called as radiant.

Radiation is a mod of energy transfer through vacuum and the electromagnetic radiations are such energy transfer from stars and space which hits the earth surface.

Sound is a mechanical wave only travels through a medium whereas electromagnetic waves does not need a medium to travel. Electromagnetic radiation is the combination of an electric field and magnetic field.

Hence, the flow of electric current by which the energy made available is called radiant.

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When 0.018 mol of tripalmitin is hydrolyzed, the theoretical yield of palmitic acid will be 0.054 moles.

The hydrolysis of tripalmitin with NaOH is saponification where a glycerol compound and fatty acids are released. Thus the fatty acids combined with the Na ion further react with the acid HCl forming a salt. Tripalmitin is a triglyceride obtained from 3 hydroxy groups of glycerol by palmitic acid (hexadecanoic). Thus, this hydrolysis yield carboxylate salt and alcohol called a saponification reaction.

Hydrolysis of 1 tripalmitin releases 3 fatty acids hence, for 0.018 moles, palmitic acid yielded is,

= 0.018 × 3

= 0.054 moles.

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The electronic configuration of an element represent the filling of electrons in various orbitals or subshells. The configuration of the element neon is 1s² 2s² 2p⁶.

Neon is 10th element in periodic table. It is a noble gas also called an inert gas since the inert gas group that is group 18 gases are commonly unreactive. The group members are neon, argon, krypton, xenon and radon.

The elements in group 18 have the general electronic configuration for valence electrons ns² np⁶. Therefore, they have a completely filled orbital and attained octet which means they are all highly stable.

Neon have 10 electrons and these electrons are arranged in orbitals in the increasing order of energy levels. Thus its electronic configuration is 1s² 2s² 2p⁶.

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Lowering the flame can result in the tip overheating.

An overheating plasma system will wear out torch parts quickly and eventually may burn out the torch and leads.

What is an oxy-acetylene torch set?

A gas torch that burns a mixture of acetylene and oxygen to produce a high-temperature flame (3,000°C or 5,400°F) that can weld or cut metal.

Can an oxy-acetylene torch explode?

Thus, lowering the flame's size may result in the tip overheating.

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Chemicals that have leached into the soil can be made harmless by bio remediation .

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Valence electrons in CO₂ = 16

Bonded electrons in CO₂ = 4 electrons of carbon and 2 electrons of each oxygen atom

Lone pairs of electrons in CO₂ = 2 l0ne pair of electrons on each oxygen atom

Single bonds in CO₂ = None

A Lewis structure, also known as, Lewis dot structure, electron dot structure, is a diagram showing the bonds between the atoms of a molecule and the lone pairs of electrons present within the molecule.

Carbon dioxide is a colorless, odorless, non-flammable gas produced when carbon is burned. The ratio of carbon to oxygen in the  CO₂ molecule is 1:2. Two double bonds join the carbon and oxygen atoms in the Lewis structure. There are two oxygen atoms at each end where they share electrons and form a bond with the central carbon atom. A Lewis structure diagram shows the number of valence electrons available for bond formation within an atom. You can also visualize the behavior of valence electrons in molecules and determine if lone pairs are present.

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Stirring a solute into a solution increases the net dissolving rate because stirring affects how quickly a solute dissolves in a solvent but does not affect how much solute will dissolve.

The sum of solute that will break up is influenced by temperature - more will break down at higher temperatures. Typically called the solubility of the solute.

Charts of the solvency at distinctive temperatures can be utilized to decide how much will break down, or at which temperature a given arrangement will be gotten to be saturated.

Stirring moves the dissolvable particles around, permitting them to connect with the strong pieces of undissolved solute and transporting the broken-up solute absent into the bulk of the solution.

In the nonappearance of blending, the concentration of solute will be most noteworthy near the pieces of solute, so more solute won't break down into the arrangement until the broken-up solute has been transported absent by dissemination.

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The solubility of MgCO3 in water will increase if 0.1m HNO3 is added to the solution at 298k.

Magnesium carbonate (MgCO3) is basic in nature and insoluble in water but when 0.1m HNO3 (acidic) is added the MgCO3 will dissociate due to the opposite nature that is MgCO3 is basic and HNO3 is acidic. This will lead to an increase in solubility. The balanced equation of this reaction is:

MgCO 3 (s) + 2 HNO 3 (aq) → Mg(NO 3) 2 (aq) + CO 2 (g) + H 2O (l)

The equilibrium constant for the dissolution of a solid substance into an aqueous solution is the solubility product constant. Ksp is used to represent it.

A type of equilibrium constant, the solubility product's value changes with temperature. Due to increasing solubility, Ksp often rises as temperature rises.

A substance's ability to dissolve in a solvent to create a solution is known as a substance's solubility. Ionic compounds, which separate into cations and anions, have a wide range of solubilities in water. While other substances are exceedingly insoluble, some are highly soluble and may even absorb moisture from the air.

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The process is isobaric as a result of the separator breaking down. The amount of benzene in the liquid leaving the separator increases, This is also known as isobaric process.

A thermodynamic process known as an isobaric process occurs at a fixed pressure. Greek words "iso" and "baros," which both signify equal pressure, were used to create the phrase "isobaric." Therefore, when the volume is increased or decreased, the constant pressure is obtained.

With the molecular formula C6H6, benzoene is an organic chemical substance. Six carbon atoms linked together in a planar ring, with one hydrogen atom connected to each, make up the benzene molecule. Benzene is a hydrocarbon since it is made up only of carbon and hydrogen atoms.

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Answer:

I'm not entirely sure about questions 3-5, but I am going to assume you want the products.

3.  [tex]Al + O_{2} = AlO_{2}[/tex]

4. [tex]2 Mg + Zn(NO_{3})_{2} = 2 Mg(NO_{3}) + Zn[/tex]

5. [tex]BaCl_{2} + Na_{2}SO_{4} = BaSO_{4} + 2 NaCl[/tex]

As for questions 6-8, it is quite simple,

6. Synthesis Reaction

7. Single Displacement Reaction or another name is Substitution Reaction

8. Decomposition Reaction

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The root mean square speed of O₂ gas molecules under the same conditions is 521.04ms⁻²

Kinetic energy is the energy an object has because of its motion

Here given data is

He gas = 6950 j/mol

We have to find root mean square = ?

So the formula is to find root mean square is

Vrms = √RT/m

Vrms = RMS velocity of the gas

T = absolute temprature of the gas

M = molar mass of the gas

R = universal gas constant

So, average molar kinetic energy of gas

E = 1/2 mv²rms = 1/2 RT

This equation reveal that molar KE is independent of the nature of the gas and it only depends on temprature as ideal behavior is concerned and so both He and O₂ will have same KE = 6950 j/mol and under the same condition of temprature

So for O₂

1/2 m O₂ V²rmsO₂ = 6950 j/mol

Taking atomic mass of O₂ = 16g/mol

V²rmsO₂ = 6950 × 2/2×16g/mol

VrmsO₂ = √69500000/16g/mol

VrmsO₂ = 521.04ms⁻²

Root mean square speed of O₂ gas molecules is 521.04ms⁻²

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Answer:

50-70%

Explanation:

In adult men, about 60% of their bodies are water. However, fat tissue does not have as much water as lean tissue. In adult women, fat makes up more of the body than in men, so they have about 55% of their bodies are made of water.

0.936g is the theoretical yield of water

CO2 molecules = moles x Avogadro's number.

= 01034644x 6.022x1023

(2·0866 X 1022] (approx)

1 moles of O2 produce 6 moles of 420 from breath.

Theoretical 4x01060627 yield of H2O = Males of H2O X Molar Mass = 0.060627 moles of 02 generate.

= 0.051966 moles

10.051966 X 18.01528

0.936g

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