Chlorine is a highly electronegative atom and yet CCl4 is not polar. Why might this be?
WILL GIVE BRAINLIEST AND 5 STAR+THANKYOU!

Answer:

D

Explanation:

The list of elements in order from most conductive to least conductive is potassium (K), germanium (Ge), selenium (Se).

Conductive is defined as the materials permit the flow or passage of electrical current, whether carried by electrons or ions.

It can also be defined as conductive hearing loss caused by failure in the systems for sound transmission in the external or middle ear.

There are four types of conductor.

Elements are defined as a pure substance made up of only one sort of atom with the same number of protons in its nucleus.

It can also be defined as any compound that cannot be broken down into smaller chemicals using standard chemical procedures.

There are three types of elements.

Potassium is the most metallic element on the list, and as a result, it has the highest conductivity (1.4 107 S/m), followed by the semiconductor germanium (2000 S/m). The least electrical conductivity is found in selenium i.e. it may be a insulator.

Thus, the list of elements in order from most conductive to least conductive is potassium (K), germanium (Ge), selenium (Se).

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Clad aluminum alloys are used in aircraft because they offer a combination of lightweight, strength, and corrosion resistance.

These properties are crucial for the performance and durability of aircraft components. The clad aluminum alloys consist of a core aluminum alloy, which provides the necessary strength, and a thin layer of pure aluminum, which offers corrosion resistance. This combination makes clad aluminum alloys an ideal choice for various parts of the aircraft, including wings, fuselage, and structural components.

Aluminium alloys with a wide range of properties are used in engineering structures. Alloy systems are classified by a number system (ANSI) or by names indicating their main alloying constituents (DIN and ISO). Selecting the right alloy for a given application entails considerations of its tensile strength, density, ductility, formability, workability, weldability, and corrosion resistance, to name a few.

A brief historical overview of alloys and manufacturing technologies  Aluminium alloys are used extensively in aircraft due to their high strength-to-weight ratio. Pure aluminium metal is much too soft for such uses, and it does not have the high tensile strength that is needed for building airplanes and helicopters.

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The metal is palladium. The density of a face-centered cubic (fcc) crystal can be calculated using the following equation:

ρ = (z * M) / (a^3 * N_A)

Where:

ρ is the density in g/cm^3

z is the number of atoms per unit cell

M is the molar mass of the metal in g/mol

a is the edge length of the unit cell in cm

N_A is Avogadro's number (6.022 x 10^23 atoms/mol)

We know that z = 4 for an fcc crystal, M = 106.42 g/mol for palladium, and a = 2(138 pm)/10^-12 = 1.422 Å = 1.422 x 10^-8 cm.

Plugging these values into the equation, we get:

ρ = (4 * 106.42 g/mol) / (1.422 x 10^-8 cm)^3 * 6.022 x 10^23 atoms/mol) = 11.9 g/cm^3

Therefore, the identity of the metal is palladium.

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Answer:

A chemical equation shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow. In a balanced chemical equation, the numbers of atoms of each element and the total charge are the same on both sides of the equation.

Answer:

chemical equation and chemical reaction

Explanation:

chemical equation is the symbolic representation Of a chemical reaction in the form of symbols

Explanation:

The major disadvantage of coal is its negative impact on the environment. Coal-burning energy plants are a major source of air pollution and greenhouse gas emissions. In addition to carbon monoxide and heavy metals like mercury, the use of coal releases sulfur dioxide, a harmful substance linked to acid rain.

Several principal emissions result from coal combustion: sulfur dioxide, which contributes to acid rain and respiratory illness.

Therefore, an increase in temperature is expected to have a positive effect on the electrical conductivity of bismuth, but a negative effect on the electrical conductivity of antimony and tellurium.  

(a) Antimony - Conductivity increases.

(b) Tellurium - Conductivity increases.

(c) Bismuth - increases.

The electrical conductivity of a substance depends on various factors, including temperature. In the case of antimony, as the temperature increases, the thermal vibrations of the atoms increase, which leads to a decrease in the mobility of the charge carriers, resulting in decreased conductivity. Conversely, in the case of tellurium, as the temperature increases, the number of free charge carriers increases, which leads to an increase in conductivity. In the case of bismuth, the increase in temperature has a minimal effect on its conductivity as it is a poor conductor of electricity, to begin with.

In summary, the effect of temperature on electrical conductivity depends on the specific substance. Antimony conductivity decreases with an increase in temperature, tellurium conductivity increases, and bismuth's conductivity is minimally affected.

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The possible reagents that could react with cyclohexane carboxylic anhydride depend on the type of reaction you want to perform. Here are some possibilities:

Acid halide reaction: To perform an acid halide reaction, you would use a nucleophile such as an alcohol, amine, or carboxylate ion. The reagent would depend on the nucleophile you want to use. For example, if you wanted to use an alcohol as the nucleophile, you could use pyridine and an alcohol such as methanol or ethanol.

Esterification: To perform an esterification, you would use an alcohol and an acid catalyst. The reagent would be the alcohol you want to use and the catalyst could be something like sulfuric acid or p-toluenesulfonic acid.

Amide formation: To form an amide, you would use an amine as the nucleophile. The reagent would depend on the amine you want to use. For example, if you wanted to use aniline, you could use pyridine and aniline.

Hydrolysis: To hydrolyze the anhydride to form two carboxylic acids, you would use water and an acid catalyst. The reagent would be water and the catalyst could be something like sulfuric acid.

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Unpaired electrons: The number of electrons that are singly occupying an orbital in a molecule or atom are unpaired electrons. Unpaired electrons in metal complexes are linked to the chemical and physical properties of a molecule. When all electrons are paired with another, the molecule has no unpaired electrons,

therefore a diamagnetic molecule is formed. Unpaired electrons cause paramagnetism in molecules and atoms.The given complex ion is [Co(OH)6]3-. For determining the unpaired electrons, we have to write down the electronic configuration of the given complex ion.

The electronic configuration of Co is [Ar]3d74s2.Now, in Co(III) ion, the 3d level is expected to be half-filled, and then the 4s level is emptied. Therefore, the electronic configuration of the given complex ion [Co(OH)6]3- is: [Co(III)]=[Ar]3d6We know that d-orbitals have five orbitals and can have a maximum of 10 electrons (i.e., five pairs of electrons).The electronic configuration of Co(III) ion indicates that all the electrons are paired up i.e., there is no unpaired electron. Therefore, the correct option is "d) 0". 0" and the of this is that the electronic configuration of the given complex ion [Co(OH)6]3- is [Co(III)]=[Ar]3d6 which indicates that all the electrons are paired up i.e., there is no unpaired electron. Therefore, the correct option is "d) 0".

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Answer:

Explanation:

They all seem right to me but if i had to pick i would pick B

Answer/Explanation:

The instinct to respond if they are in danger is beneficial to an animals' survival. Normally young doesn't know how to hunt nor what to hunt. But, all young can know that something is wrong this is called fear. Fear is a natural instinct that is both normal and learned. Fear protects something from going into a bad situation.

Answer:

90 mL

0.09 Liters

Explanation:

Givens

1 cc of solution = 1 mL

0.75 cc / min needed to go in intravenously.

2 hours needed.

? Liters

Solution

1 hour = 60 minutes

1 hours = 2 * 60 = 120 minutes

rate = 0.75 cc/minute

Liters = rate * time

Liters = 0.75 cc * 120 minutes

Liters = 90 cc

That's not the answer.

1 Liter has 1000 mL or ccs

x Liter has 90 mL          

Equation

1/x = 1000 / 90

Solution

Cross multiply

1000x = 90*1           Divide by 1000

x = 90/1000

x = 0.09 Liters.

Answer: assume pathogens are present and treat the samples accordingly

Explanation:

When investigators are unable to conclusively ascertain the source of a biological sample found at a crime scene, the correct thing to do is to treat it as if pathogens are present in it and handle it according to set rules on how to handle pathogens.

This is done to ensure that if a pathogen is indeed present, it would not cause a health emergency by infecting those who come in contact with the samples at the scene.

no

Explanation:

i simply answered the question

you didnt ask for it you simply asked if i had it

being mad is no use, same with reporting and taking this down

in thoery my answer is correct

so, dont get mad, dot report, dont take this down

this is my protest

Answer:

"Electron binding energy, more commonly known as ionization energy, is a measure of the energy required to free an electron from its atomic orbital or from a solid. ... The atomic binding energy of the atom is the energy required to disassemble an atom into free electrons and a nucleus."

Explanation:

Hope this helps! <33

God bless your heart <3333

have a wonderful day!

Binding energy is a required amount of energy that disperses the other particles of the reaction system. It measures the energy needed to free an electron or a subatomic particle.

Binding energy is the ionization energy that depicts how much energy will be needed if an electron has to be removed from an atom for a reaction to occur.

It can be said that the energy required to free an electron from the orbit of the atom is measured in electron volt (eV). It is a little different from ionization energy as binding energy can remove any subatomic particle and not just an electron.

Therefore, the binding energy measures the freed subatomic particle.

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The reaction Zn(s) + 2 MnO2(s) ⟶ ZnO(s) + Mn2O3(s) is used in a type of battery known as the zinc-manganese dioxide battery.

The zinc-manganese dioxide battery employs the reaction Zn(s) + 2 MnO2(s) ⟶ ZnO(s) + Mn2O3(s) to generate electrical energy.

The zinc-manganese dioxide battery, also referred to as the alkaline battery, is a common type of battery found in various devices such as flashlights, toys, and remote controls.

It consists of two primary components: a zinc anode (Zn) and a manganese dioxide cathode (MnO2). During discharge, the zinc anode undergoes oxidation, releasing electrons and forming zinc oxide (ZnO). Simultaneously, the manganese dioxide cathode undergoes reduction, accepting the electrons and forming manganese (III) oxide (Mn2O3).

This redox reaction generates electrical energy that can be used to power electronic devices.

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The statement is accurate about dominant alleles is they are expressed whenever present.

The relation between two versions of a gene are called as dominant. when the individual receive the two version of gene of each parent of gene known as alleles. if gene of alleles are different , one allele will be expressed as the dominant gene. Dominant alleles are expressed as phenotypic cell. Dominant alleles are indicated by the uppercase of a letter. so the dominant allele is that will be more powerful than the another allele.

Thus, The statement is accurate about dominant alleles is they are expressed whenever present.

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Answer:

The liquid could be cooking oil

Explanation:

Density contributes to sinking or floating. If this is vegetable oil of something like that, the ice cube will sink.

The number of sugar particles is 7.4 * 10^22 particles.

The mole is used to describe the amount of substance. The idea was first introduced by Professor Avogadro and the number of particles that constitute one mole of a substance was said to be 6.02 * 10^23 particles in a mole.

Thus;

Molar mass of sugar = 342 g/mol

Number of moles of sugar = 42 grams/342 g/mol = 0.123 moles

Now;

If 1 mole of sugar costs 90 cents

0.123 moles of sugar costs 0.123 moles *  90 cents/1 mole

= 11 cents

Now we know that;

1 mole of sugar contains  6.02 * 10^23 particles

0.123 moles of sugar contains 0.123 moles *  6.02 * 10^23 particles / 1 mole

= 7.4 * 10^22 particles

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Answer:

the answer is A.

i think:/

Explanation:

The theoretical yield of NH₄NO₃  in grams is 49.03 g (rounded to two decimal places).

nitrogen gas:

Convert the volume of nitrogen gas to moles using the ideal gas law: PV = nRT.

P = 1 atm (standard pressure), V = 16608 L, T = 20°C + 273.15 = 293.15 K, R = 0.08206 L·atm/mol·K

n = PV/RT = (1 atm)(16608 L)/(0.08206 L·atm/mol·K)(293.15 K) = 693.8 moles

Use the balanced chemical equation to determine the amount of product formed by nitrogen gas: 2 moles of N2 react to form 2 moles of NH₄NO₃ .

So, 693.8 moles of N2 would form 693.8/2 = 346.9 moles of NH₄NO₃ .

oxygen gas:

Convert the volume of oxygen gas to moles using the ideal gas law: PV = nRT.

P = 1 atm (standard pressure), V = 7.2123 L, T = 20°C + 273.15 = 293.15 K, R = 0.08206 L·atm/mol·K

n = PV/RT = (1 atm)(7.2123 L)/(0.08206 L·atm/mol·K)(293.15 K) = 0.3069 moles

Use the balanced chemical equation to determine the amount of product formed by oxygen gas: 1 mole of O2 reacts to form 2 moles of NH₄NO₃ .

So, 0.3069 moles of O2 would form 0.3069 x 2 = 0.6138 moles of NH₄NO₃ .

water:

Convert the volume of water to mass using its density:

Mass = Volume x Density = 7.2310 L x 1.00 kg/L x 1000 g/kg = 7231 g

Use the balanced chemical equation to determine the amount of product formed by water: 4 moles of H₂O react to form 2 moles of NH₄NO₃ .

So, 7231 g of H2O would form (2/4) x (7231 g/18.015 g/mol) = 201.2 moles of NH₄NO₃ .

Since oxygen gas forms the least amount of product, it is the limiting reactant. Therefore, we will use the amount of NH₄NO₃  formed by oxygen gas to calculate the theoretical yield.

The molar mass of NH₄NO₃  is 80.0434 g/mol.

The amount of NH₄NO₃  formed by oxygen gas is 0.6138 moles.

Therefore, the theoretical yield of NH₄NO₃  is (0.6138 mol) x (80.0434 g/mol) = 49.03 g.

The theoretical yield of NH₄NO₃ in grams is 49.03 g (rounded to two decimal places).

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Takealot excels at providing convenience, extensive product selection, competitive pricing, and a seamless online shopping experience as its value proposition for consumers.

Convenience is a key aspect of Takealot's value proposition. As an online retailer, Takealot offers the convenience of 24/7 shopping from the comfort of one's own home.

Customers can browse a wide range of products, place orders, and have them delivered directly to their doorstep.

Takealot also offers an extensive product selection, spanning various categories such as electronics, fashion, home goods, and more.

This breadth of choices allows consumers to find and compare different products all in one place, saving them time and effort compared to traditional retailers with limited inventory.

Competitive pricing is another area where Takealot excels. By operating online, the company has lower overhead costs compared to brick-and-mortar retailers, enabling them to offer competitive prices and discounts to their customers.

The seamless online shopping experience provided by Takealot includes user-friendly interfaces, secure payment options, and efficient delivery services. This enhances customer satisfaction and convenience.

In contrast, traditional non-online retailers typically have limited operating hours, smaller product selections, and may not offer the same level of convenience and competitive pricing.

They often require customers to physically visit their stores, which can be time-consuming and may not provide the same level of ease and accessibility as online platforms like Takealot.

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Answer:

I didn't get you

Explanation:

Please explain

Answer:

inner transition elements.

Explanation:

right answer

The final temperature of the gas is approximately 40.96 Kelvin.

To determine the final temperature of the gas, we can use the ideal gas law, which states:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles of the gas, R is the ideal gas constant, and T is the temperature in Kelvin.

First, let's convert the given temperatures to Kelvin. We have:

Initial temperature: -125 degrees Celsius = 148 K (approximate)

Final temperature: Unknown

The initial conditions of the gas are as follows:

Initial pressure (P1) = 1.25 atm

Initial volume (V1) = 1250 mL = 1.25 L (since 1 L = 1000 mL)

Initial temperature (T1) = 148 K

The final conditions of the gas are as follows:

Final pressure (P2) = 50.0 atm

Final volume (V2) = 325 mL = 0.325 L

Final temperature (T2) = Unknown

Using the ideal gas law, we can set up the following equation:

(P1 * V1) / T1 = (P2 * V2) / T2

Substituting the known values:

(1.25 atm * 1.25 L) / 148 K = (50.0 atm * 0.325 L) / T2

Simplifying the equation:

T2 = (50.0 atm * 0.325 L * 148 K) / (1.25 atm * 1.25 L)

T2 = 40.96 K

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Answer:

Fossil fuels..........

Answer:

The total kinetic energy of moving particles of matter is called thermal energy. The thermal energy of matter depends on how fast its particles are moving on average, which is measured by temperature, and also on how many particles there are, which is measured by mass

Explanation:

Being a weak acid (Ka = 5.6x104), the nitrous acid reacts with NaOH as follows: NaOH (l) + HNO2 = NaNO2 (aq) + H2O.

A 0.15 m naoh solution is used to titrate 100 ml of 0.15 m nitrous acid (HNO2). The pH of the initial solution is 2.04, 3.85 for the equivalence point, 8.06 for the point at which 80.0 ml of the base has been added, and 11.56 for the point at which 105 ml of the base have been added. There is initially simply a 0.12M HNO2 solution. Like Ka is: Ka is equal to [H+] [NO2]/[HNO2]. When the ions [H+] and [NO2] come from the same equilibrium, [H+] = [NO2] = x, 5.6x10⁻⁴ = X² / 0.15M. 8.4x10⁻⁵ = X². X = [H⁺] = 9.165x10⁻³M. Since pH = -log [H+], pH = 2.04.

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Answer:

Well elements are chemical substances while a compound consists of two or multiple elements put together.

Explanation:

Answer:

Elements

iron,

copper,

silver,

gold,

hydrogen,

carbon,

nitrogen,

and oxygen.

Compounds

Sugar (sucrose - C12H22O11)

Table salt (sodium chloride - NaCl)

Water (H2O)

Carbon dioxide (CO2)

Sodium bicarbonate (baking soda - NaHCO3)

Answer:

Like Earth, it gets plenty of sunlight. We don’t see the far side because “the moon is tidally locked to the Earth,” said John Keller, deputy project scientist for NASA’s Lunar Reconnaissance Orbiter project. “The moon does rotate, but it rotates at the same speed that it rotates around the Earth.”

Explanation:

We must first determine the formula mass of a Cu2O formula unit before we can set it on the nano-balance. As a result, we must increase the greater balance by one formula unit of H2O.

We must first determine the formula mass of a Cu2O formula unit before we can set it on the nano-balance. Since there are two copper atoms and one oxygen atom in every unit of the formula Cu2O, we may determine its mass as follows: Cu2O has a formula mass of 143.1 u, which is equal to 2 atomic masses of copper and 1 atomic mass of oxygen. 0.000 u x 143.1 u/formula unit = 0 formula units is the amount we must increase. The mass of water is expressed as: H2O's formula mass is (2 x hydrogen atomic mass) + (1 x oxygen atomic mass), which equals (2 x 1.008 u) + (1 x 15.999 u) = 18.015 u. The following must be added: 0.000 u; 18.015 u; and 0.000 formula units.

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Answer:

The biodiversity of an area is literally the number of species, both plant and animal, inhabiting the environment being examined.  When a species is no longer found in a region, it is locally extinct.

Explanation: