How does the electron-cloud model describe electrons?

The answer of this question is shown below in the image with proper structural representation.

To recognize the chiral middle, search for the wedge and sprint bonds as commonly those are the ones indicating a chiral center. One vital issue to remember, a carbon with a double bond cannot be a chiral center as it does no longer have four extraordinary companies.

wedge-and-dash (uncountable) (chemistry) a technique of representing the three-dimensional shape of a molecule in which simple lines constitute bonds within the aircraft of the image, wedge-formed lines represent bonds toward the viewer, and dashed strains represent bonds faraway from the viewer.

Prioritize the four atoms, or agencies of atoms, attached to the chiral center based on the atomic quantity of the atom this is bonded directly to the chiral center. The higher the atomic variety, the higher the priority.

Learn more about chiral:

brainly.com/question/9522537

#SPJ4

The molar mass of calcium hydroxide, Ca(OH)₂ is 74.10 g/mol. The moles of the K₂SO₄ is 0.086 mol . The grams of the glucose is 639 g.

The molar mass of the Calcium oxide , Ca(OH)₂ is :

Ca(OH)₂ = 40 + 2( 15.99 + 1 )

              = 74.10 g/mol

The moles of the  K₂SO₄ in the 15 g of the  K₂SO₄ :

Moles = mass / molar mass

Moles = 15 / 174.25

Moles = 0.086 mol

The moles of the glucose, C₆H₁₂O₆ = 3.55 mol

The mass of the glucose = moles × molar mass

                                         = 3.55 × 180

                                         = 639 g

To learn more about moles here

https://brainly.com/question/26416088

#SPJ4

The volume of a saturated solution of Min hexane that would contain 40 mg of Mat this temperature 0.527 mL

You may calculate the solute's mass by multiplying its volume by its concentration: mass of solute = volume of solution * concentration of solution * 0.500 L * 14.5 g L = 7.25 g 7.25 g of sodium chloride were dissolved in water.

Organic compound O has a determined solubility in hexane of 0.758 g/mL at 20 °C.

We must determine how many mL contain 40 mg.

Now, 1 mL contains 758 mg.

as a result, 40 mg is in

0.5805 mL of solution is equal to 40/758.

= 0.527 mL

The volume of a saturated solution of Min hexane that would contain 40 mg of Mat this temperature 0.527 mL

To learn more about solute mass refer to:

https://brainly.com/question/14119950

#SPJ4

This unit is explained as the work of a driving force of a newton whose point of application moves one meter in the direction of the force

1. The work done by the gas is 425,565 Joules

2. The change in internal energy of the gas is 637,171 Joules

1. W = P (V2 - V1) difference of v1 and v2.

P = 1 atm = 101325 N/m^2

V2 = 16.2 m^3

V1 = 12 m^3

W = 101325(16.2 - 12) = 101325 × 4.2 = equal to 425,565 Joules

2. ∆U = Q - W

Q = 254 kcal = 254×4184 = 1,062,736 Joules

now, Q is equal to 1,062,736 joules

∆U = 1,062,736 - 425,565 = 637,171 Joules

So, U is equal to 637,171 joules.

To know more about Ideal Gas:

https://brainly.com/question/28257995

#SPJ4

The balanced reaction equation is; [tex]2Ca(OH)_{2} + 2Cl_{2} ----- > Ca(ClO)_{2} + CaCl_{2} + 2H_{2} O[/tex]

We have to note that when we are talking about the reaction equation, what we mean is how the reactants and the products are able to exists in the system.

For the reaction, the species that we find at the right hand side are called the reactants that are in the system while the species that we find on the left hand side are called the products of the reaction. Thus, the balanced reaction equation is shown above.

Learn more about reaction:https://brainly.com/question/28984750

#SPJ1

When the rates of the forward and reverse reactions are equal, a chemical reaction has reached equilibrium.

When the rates of the forward and reverse reactions are equal, a system is said to be in equilibrium. The rate of the forward reaction increases with the addition of more reactants. It appears that the equilibrium is shifting toward the product, or right, side of the equation because the rate of the reverse reaction remains unchanged at first. A stage is reached when a reversible reaction is conducted in a closed system where both the forward and backward reactions move at the same rate. Every reaction strives to reach a state of chemical equilibrium, which is the point where both the forward and reverse processes are occurring at the same rate. The concentrations of the reactants and products are constant at equilibrium because the forward and reverse rates are equal.

To learn more about equilibrium click here:

https://brainly.com/question/5537989

#SPJ4

the equation gibbs free energy ΔG = ΔH - TΔS, where ΔG = -25.134x + 165 and ΔH = 165, to calculate the value of ΔS. We can rearrange the equation to ΔS = (ΔH - ΔG)/T and plug in our values to get ΔS = 190.134/x.

ΔG = ΔH - TΔS

ΔG = -25.134x + 165

ΔH = 165

TΔS = 25.134x

ΔS = (ΔH - ΔG)/T

ΔS = (165 - (-25.134x))/x

ΔS = (165 + 25.134x)/x

ΔS = 190.134/x

For x = 1 (T = 1 K):

ΔS = 190.134/1

ΔS = 190.134 kJ/mol-K

Therefore, ΔS = -50.27 kJ/mol-K.

We can use the equation gibbs free energy ΔG = ΔH - TΔS, where ΔG = -25.134x + 165 and ΔH = 165, to calculate the value of ΔS. We can rearrange the equation to ΔS = (ΔH - ΔG)/T and plug in our values to get ΔS = 190.134/x. For x = 1 (T = 1 K), we get ΔS = 190.134 kJ/mol-K, so the value of ΔS is -50.27 kJ/mol-K.

learn more about gibbs free energy here

https://brainly.com/question/20358734

#SPJ4

The first general equation represents a synthesis reaction and the second one is decomposition. Third equation represents a single displacement reaction and the last one is a double displacement reaction.

There are different types of reactions. The combination of two species A and B giving a single product is called a synthesis reaction.

Hence, A  + B ⇒ C is a synthesis reaction.

In decomposition reaction, one compound breakes into its constituent groups or elements.

AB ⇒ A + B  is a decomposition reaction.

In a single displacement reaction, one element or group from a reactant is displaced by the other.

AB + C ⇒ AC + B is  a single displacement reaction.

In double displacement reactions, two groups or elements are displaced by other two groups.

AB + CD ⇒ AD + BC is a double displacement reaction.

Find more on reaction types:

https://brainly.com/question/29409694

#SPJ1

The lone pairs or valence electrons represented by the dots. The valence electron of carbon is the first to be evaluated for each element.

The oxidation number of O in [CH3OH2]+ is determined to be -2 based on the discussion that has been provided above. O has a formal charge of 1 and a partial charge that is negative. As a result, choice E is the right response. The CH3OH2Lewis +'s process involves the following steps: H |..plus H - H - O - H | | H H

The specified molecule is CH3OH2+.

16 valence electrons make up CH2N2. The carbon in concentration levels has 4 valence electrons, 2 nitrogen atoms offer different 5 valence shell, 2 hydrogen ions each have electron configuration, and so on.

To know more about electrons visit :

https://brainly.com/question/28977387

#SPJ4

The use of heat and alcohol to disinfect medical equipment is because both heat and alcohol are effective at killing microorganisms and bacteria.

Heat can be used to sterilize equipment by exposing it to high temperatures for a certain period of time, while alcohol, specifically ethanol and isopropyl alcohol, can be used to disinfect surfaces by denaturing the proteins and dissolving the lipid membranes of microorganisms.

Milk is not given to someone who accidentally ingests a heavy metal ion such as silver or mercury. Ingestion of heavy metal ions like silver or mercury can cause serious health problems and requires prompt medical attention. Milk is not an effective treatment for heavy metal poisoning, and chelating agents or other specific treatments are used for removing heavy metals from the body.

Learn more about chelating agents here:

https://brainly.com/question/1217155

#SPJ4

The equilibrium constant for the given reaction is 1.05.

The formula for equilibrium constant is as follows

E° cell= E°cathode- E°anode

So we will find E°cathode as follows

E° cathode = 0.8698 V

and E°anode will be found as  

E°anode= -0.04V

By putting the value of E°anode and E° cathode we will get the value of E° cell the solution is a sfollows

E°cell=0.8698 V - (-0.04V)

E°cell= 0.9098 V

E°cell= 0.0592/n logK

From the balanced redox reaction equations above,

n=3

0.9098 V= 0.0592/3 logK

By separating logk as indicated below

logK= 0.0217

Now separating the k by taking log to the RHS by making log as antilog

K= Antilog (0.0217)

So the value of k is as follows

K= 1.05

To look more about equilibrium constant click here

brainly.com/question/10038290

#SPJ4

The correct condensed structure of hexene is CH₃CH₂CH=CHCH₂CH₃.

A condensed structural formula also termed as semi-structural formula and it is used to describe the organic compounds in a line of text. They will be illustrated in a single line of text and specifies the atoms in the order which are located in a molecule.

Hexene is a hydrocarbon having chemical formula C₆H₁₂. It s used as a comonomer in the production of the polyethylene. There are several number of isomers in hexene, depending on the geometry and position of the double bond in the chain. One of the most common useful of isomers is 1-hexene as well as an alpha-olefin.

To know more about condensed structure visit:

https://brainly.com/question/15451582

#SPJ4

The entropy of vaporization of benzene is 86.7 J/mol.K. where the normal boiling point of benzene is 80.1°C, and the heat of vaporization is AHvap 30.7 kJ/mol.

T(benzene - C₆H₆) = 80.1 °C = 80.1 + 273.15 = 353.25 K.

ΔHvap(C₆H₆) = 30.7 kJ/mol.

ΔSvap(C₆H₆) = ?

ΔS(C₆H₆) = ΔH ÷ T

ΔS(C₆H₆) = 30.7 kJ/mol ÷ 353.25 K

ΔS(C₆H₆) = 0.087 kJ/mol·K = 86.7 J/mol·K.

ΔS - entropy of vaporization.

Benzene is a colorless or light-yellow liquid chemical. Primarily it is used as a solvent in the chemical and pharmaceutical industries, as a starting material and an intermediate in the synthesis of numerous chemicals, and in gasoline. Benzene is produced by both natural and man-made processes.

Learn more about Benzene:

brainly.com/question/14525517

#SPJ4

The blank column under the category of plasma corresponds the characteristics that, it is made of charged particles.

Plasma is the fourth state of matter. It is composed of charged particles that is electrons and ions. It is the most prevalent type of ordinary matter in the universe and is mostly linked to stars.

Plasma may be created intentionally by heating a neutral gas or exposing it to a strong electromagnetic field, and it extends to the rarefied intracluster medium and perhaps to intergalactic areas. 

Plasma is electrically conductive due to the existence of charged particles, and the dynamics of individual particles and macroscopic plasma motion are controlled by collective electromagnetic fields.

Find more on plasma state :

https://brainly.com/question/17721564

#SPJ5

Answer: c

Explanation:

The number of grams of hydrogen gas in 2600 ml container at 35 degrees celsius and a pressure of 165 mmHg is 0.045g.

The mass of a substance can be calculated by multiplying the number of moles of a substance by its molar mass.

However, the number of moles of the substance must first be calculated as follows:

PV = nRT

Where;

0.217 × 2.6 = n × 0.0821 × 308

0.5642 = 25.29n

n = 0.5642 ÷ 25.29

n = 0.0223 moles

molar mass of hydrogen gas = 2g/mol

mass of hydrogen gas = 0.0223 × 2 = 0.045grams

Therefore, 0.045grams is the mass of hydrogen gas.

Learn more about mass at: https://brainly.com/question/26408362

#SPJ1

When water is lost, but electrolytes are retained, the first thing that happens is that moves water from the ICF to the ECF.

The fluid inside of cells, also called the cytoplasm or cytosol, makes up about 60% of the water in the human body, totaling about 7 gallons. Organelles like the nucleus, endoplasmic reticulum, mitochondria, lysosomes, and Golgi apparatus are suspended in and supported by the ICF. Also found in the ICF are cellular building blocks like sugars, proteins, carbohydrates, and lipids.

ECFs are any body fluids that are not inside cells. The two main components of ECF are plasma and interstitial fluid (IF). The balance consists of cerebrospinal fluid, lymph, the synovial fluid in the joints, pleural fluid in the pleural cavities (lungs), pericardial fluid around the heart, peritoneal fluid in the peritoneal cavity (abdomen), and the aqueous humor of the eye. In mammals, milk is also considered an extracellular fluid.

The ICF has higher amounts of potassium, phosphate, magnesium, and protein compared to the ECF. The plasma has high concentrations of sodium, chloride, and bicarbonate, but lower levels of protein as compared to the ICF. While water moves passively via osmosis, sodium and potassium ions move in and out of cells using active transport ion pumps. The pumps are powered by adenosine triphosphate (ATP) to provide the energy to move the ions against their concentration gradients (i.e. sodium moves out of the cell and potassium is pumped in) and maintain the gradients inside and outside the cell.

learn more about ICF and ECF at https://brainly.com/question/17312247.

#SPJ4

The percentage composition  of water in a hydrate of BaCl₂ is 14 %.

Percent composition is defined as a convenient way to record concentration of solution.It is a expression which relates solute to solvent as,mass of element/mass of compound ×100.

It provides quantitative information about the compound and helps in it's analysis.

Percent composition helps in elemental analysis in compound .In the given compound, mass= 5 g and mass of anhydrous salt= 4.3 g , mass of water=5-4.3=0.7 g .

Therefore, percent composition is, 0.7/5×100=14 %.

Learn more about percent composition,here:

https://brainly.com/question/17505281

#SPJ1

Lim x→−[infinity] (x⁶ + 2x⁹) exists, limit exists for the function x⁶ + 2x⁹ for x tends to -[infinity], and is equal to negative infinity, that is -[infinity].

To find the limit of the function as x approaches negative infinity, we need to substitute a large negative value for x and see what the function evaluates to.

However, in this case, we can see that the function is the sum of two polynomials:

x⁶ + 2x⁹

The term x⁶ becomes insignificant as x becomes very large in magnitude, as x⁶ becomes much smaller than x⁹. Therefore, the limit as x approaches negative infinity is the same as the limit of 2x⁹ as x approaches negative infinity.

Therefore, the limit is:

lim x→−[infinity] (x⁶ + 2x⁹) = lim x→−[infinity] (2x⁹)

lim x→−[infinity] (x⁶ + 2x⁹) = -2×infinity

lim x→−[infinity] (x⁶ + 2x⁹) = -infinity

So, the limit of the function (x⁶ + 2x⁹) as x approaches negative infinity is negative infinity.

To know more on limits

https://brainly.com/question/28975075

#SPJ4

True: when questioned, the principal could say that open campus lunch was a contributing factor to student tardiness.

There are various techniques for determining whether a claim is true. When questioned, the principal could confirm that the claim that open campus lunch contributed to student tardiness was accurate. This is due to the fact that when they removed the open campus for lunch, student tardiness reduced.

Children are expected to arrive at school by the scheduled start time. Children are also expected to stay until the day is over. Coming to school after the start of the school day is being tardy. There are various definitions and procedures for tardiness in schools.

To know more about tardiness, refer to the following link:

https://brainly.com/question/17488687

#SPJ4

Answer:

The answer is true :)

Explanation:

The people should read the book. Because In the films, most characters were changed from the book to suit the film's plot-line or to make the characters more likable or dislikeable.

In comparison to other cinematic adaptations, the Lord of the Rings films are more true to J.R.R. Tolkien's works. However, there are a number of significant and numerous small deviations from the books in the movies, and many ardent book fans claim that the movies don't even remotely reflect the books.

Most characters from the books were altered for the movies to better fit the storyline or to make them more likeable or unlikable. The corruption brought about by Sauron or his Ring is reflected in a few of these modifications.

The Lord of the Rings novels and films are incredibly popular. The fans of both stories adore both of them very much. The movies, however, somewhat outperform the novels.

To learn more about The Lord of Rings refers to;

https://brainly.com/question/1477610

#SPJ1

Taking into account the reaction stoichiometry, if 65.8 grams of SO₃ are produced, a mass of  13.16 grams of oxygen reacted.

In first place, the balanced reaction is:

2 SO₂ + O₂  → 2 SO₃

By reaction stoichiometry, the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied:If 160 grams of SO₃ are produced by 32 grams of O₂, 65.8 grams of SO₃ are produced by how much mass of O₂?

mass of O₂= (65.8 grams of SO₃× 32 grams of O₂)÷ 160 grams of SO₃

mass of O₂= 13.16 grams

Finally, 13.16 grams of oxygen reacted.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵ is the electronic configuration of Cr. the correct answer is D.

There are 24 electrons in all, according to the electron arrangement. A neutral atom will contain 24 protons if it has 24 electrons. The element is determined by its proton count. Chromium, symbol Cr, is the 24th element.

Since Cr contains 24 protons and the +2 charge would result in the nucleus having 26 protons, Cr²⁺ is invalid.  Cu is made up of 29 protons. The copper would be Cu⁵⁺ as there are only 24 electrons. Cu²⁺ was rejected for the same reason.

Therefore, 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵ is the electronic configuration of Cr.

Learn more about electron configuration at https://brainly.com/question/12706589

#SPJ4

The empirical formula mass of the compound CH₂O is 30g and the molecular weight is 180.156 g/mol. Then the molecular formula is C₆H₁₂O₆.

Empirical formula of a compound is derived from the number of moles of each element in the compound. The formula mass is the sum of masses of atoms in the empirical formula.

Dividing the formula mass with the molecular mass and multiply the empirical formula with the obtained integer will give you the molecular formula of the compound.

Given that, molecular mass = 180.156  g/mol

formula mass = 12 + 2 + 16 =30 g

Then, 180.156/30 = 6

multiply CH₂O with 6 we obtain the molecular formula as C₆H₁₂O₆.

To find more on empirical formula, refer here:

https://brainly.com/question/14425592

#SPJ1

Coal burning is the result of London-type smoge (option C)

A serious case of air pollution known as the Great Smog of London, or Great Smog of 1952, struck London, England, in December 1952. The city was covered in a thick layer of smog due to an extended period of exceptionally cold weather, an anticyclone, and windless circumstances. The majority of the airborne pollutants were caused by the usage of coal. From Friday, December 5, until Tuesday, December 9, 1952, it persisted before dispersing fast as the weather altered.

Significant disruption was caused by the smog, which was far worse than past "pea-souper" pollution storms in that it reduced visibility and even entered indoor spaces. In the weeks that followed the incident, government medical studies suggested that up to 4,000 people had died directly as a result of the pollution and that 100,000 more had become ill as a result.

Learn more about coal here: https://brainly.com/question/18297510

#SPJ4

Of the compounds below, a 0.1 M aqueous solution of KCN, Ka of HCN = 4.0 × 10⁻¹⁰ will have the highest pH.

The pH is given as :

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

ka for the HCN is 4.0 × 10⁻¹⁰ , the pka = -log ka.

pka = - log (4.0 × 10⁻¹⁰)

pka = 9.30

pH = pka + log [KCN ] / [HCN]

The KCN  is the salt of the strong base and the weak acid. The salt of the weak acid and the strong base will have the highest pH . so among the given option , the salt of weal acid and the strong base is the KCN, Ka of HCN = 4.0 × 10⁻¹⁰.

The question is incomplete, the complete question is :

Of the compounds below, a 0.1 m aqueous solution of ________ will have the highest ph.

NaOAc, Ka of HOAc = 1.8 × 10⁻⁵

NaClO, Ka of HClO = 3.2 × 10⁻⁸

NH₄NO₃, Kb of NH3 = 1.8 × 10⁻⁵

KCN, Ka of HCN = 4.0 × 10⁻¹⁰

NaHS, Kb of HS- = 1.8 × 10⁻⁷

To learn more about pH here

https://brainly.com/question/29575409

#SPJ4

The presence or absence of a solute in the filtrate depends on The molecular weight and size of the solute as well as the MWCO and pore size of the membrane.

The presence and the absent of the solute in the filtrate will depends on the molecular weight and the size of the solute as well as the MWCO that molecular weight cut off and pore size of the membrane. The molecular weight cut - off is the lowest molecular weight of the solute from which the 90% of the it is retained by membrane . The MWCO is important in the filtration.

The MWCO describes the pore size. it will describe the rejection capability of the membrane.

To learn more about molecular weight here

https://brainly.com/question/29597397

#SPJ4

The balance equation for the given equation is,

2BF3 + 3Li2SO3 → B2(SO3)3 + 6LiF

Lithium fluoride is an inorganic compound with the chemical formula LiF. It is a colorless solid, that transitions to white with decreasing crystal size. Although odorless, lithium fluoride has a bitter-saline taste.

Its structure is analogous to that of sodium chloride, but it is much less soluble in water. It is mainly used as a component of molten salts.

Formation of LiF from the elements releases one of the highest energy per mass of reactants, second only to that of BeO.

Fluorine is produced by the electrolysis of molten potassium bifluoride. This electrolysis proceeds more efficiently when the electrolyte contains a few percent of LiF, possibly because it facilitates formation of an Li-C-F interface on the carbon electrodes.

A useful molten salt, FLiNaK, consists of a mixture of LiF, together with sodium fluoride and potassium fluoride.

The primary coolant for the Molten-Salt Reactor Experiment was FLiBe; LiF-BeF2 (66-33 mol%).

The given equation is:

BF3 + Li2SO3 → B2(SO3)3 + LiF

# atoms in Reactants                        # atoms in Products

B = 1                                                              B = 2

F = 3                                                              F = 1

Li = 2                                                             Li = 1

S = 1                                                               S = 3

O = 3                                                             O = 9

In order to balance the unequal distribution of atoms, multiply BF3 by 2, Li2SO3 by 3 and LiF by 6 to get:

2BF3 + 3Li2SO3 → B2(SO3)3 + 6LiF

Coefficient of LiF = 6

To learn more about Lithium fluoride visit:

brainly.com/question/11932928

#SPJ4

The Lewis structure of TeO4⁻² is: [Te]=O-O-O-O.

The number of electron regions is 8 (5 from the Oxygen atoms and 1 from the tellurium atom).

The hybridization of the Te atom is sp3.

The electron geometry is tetrahedral and the molecular geometry is also tetrahedral.

The number of lone pairs is 4 and the bond angles are 109.5 degrees.

The molecule is polar due to the difference in electronegativity between Te and O atoms.

A Lewis structure, also known as a Lewis dot diagram or electron dot diagram, is a way of representing the valence electrons of an atom in a chemical compound. The structure is named after Gilbert N. Lewis, who first proposed it in 1916. Lewis structures depict the chemical symbol of the atom in the center, with dots representing the valence electrons surrounding it. The number of dots corresponds to the number of valence electrons in the element. These dots are used to show the chemical bonds between atoms in a molecule, and can be used to predict the chemical properties and reactivity of the compound.

Learn more about lewis structure, here https://brainly.com/question/20300458

#SPJ4

Heating occurs in the following categories- Heating , Condensation and deposition.

Cooling occurs in Cooling, Freezing and sublimation

To know more about cooling here

https://brainly.com/question/13748261

#SPJ4