Carbon dioxide has a density of 2.0gl. what mass will a 3.5 l sample of carbon dioxide have?

Among the given species, B. N³⁻ is the diamagnetic species because all of its electrons are paired.

To determine which species is diamagnetic, let's analyze each option:

A. Co²⁺
B. N³⁻
C. Ti
D. Fe³⁺

Diamagnetic species have all of their electrons paired in their atomic or molecular orbitals. Let's examine the electron configurations for each species:

A. Co²⁺ has the electron configuration [Ar] 3d⁷, which contains unpaired electrons.
B. N³⁻ has the electron configuration [He] 2s² 2p⁶, which has all electrons paired.
C. Ti has the electron configuration [Ar] 3d² 4s², which contains unpaired electrons.
D. Fe³⁺ has the electron configuration [Ar] 3d⁵, which contains unpaired electrons.

Among the given species, B. N³⁻ is the diamagnetic species because all of its electrons are paired.

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Option D is the correct answer. This is because the production of medicinal compounds is determined by the plant's genetics and biochemistry, which may not be reflected in the plant's structural features alone.

The student's conclusion is not valid. While the two stem cross sections may have many structural similarities, this is not sufficient evidence to conclude that the plant that produced cross section B will produce the same valuable medicinal products as the plant that produced cross section A.

Option A and B are incorrect because structural similarities do not necessarily indicate a close relationship between organisms or their biochemical properties. Option C is also incorrect because while soil conditions may affect plant growth, they do not necessarily determine a plant's ability to produce specific medicinal compounds.

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The purchase process involves steps such as initiating a request, vendor selection, approval, purchase order issuance, product delivery, and payment, ensuring a systematic approach to procurement for accountability and efficiency.

The purchase process consists of several steps:

1. The department admin initiates the process by sending a purchase request to the IT department.
2. The IT Manager reviews the request and decides whether to approve or reject it.
3. If the request is approved, the IT Manager contacts various vendors, such as Apple, Dell, HP, ASUS, and Lenovo, to request quotes.
4. The IT Manager receives the quotes and selects the best price.
5. Once the best price is selected, the IT Manager informs the admin and waits for their approval.
6. If the admin approves, the IT Manager finalizes the vendor selection and prepares the purchase request.
7. The IT Manager then sends the purchase request to the Procurement Supervisor.
8. The Procurement Supervisor receives the request and issues a purchase order to the chosen vendor.
9. The Procurement Supervisor reviews the vendor's invoice and processing time.
10. If the processing time elapses and the tracking number has not been received, the Procurement Supervisor cancels the order.
11. If the vendor provides the tracking number within the processing time, the Procurement Supervisor collects the product once it is delivered.
12. At the same time, the Procurement Supervisor submits the payment to the vendor.
13. Once both steps are completed, the purchase process is considered finished, and the purchase is completed.

This process ensures that there is a clear and systematic approach to purchasing items, from the initial request to the final delivery and payment. Each step is important in maintaining accountability and efficiency in the procurement process.

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Answer:

Mass

Explanation:

(not sure if this is what you were looking for, but mass is the amount of matter in an object)

Answer:

In a chemical reaction, only the atoms present in the reactants can end up in the products. No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

Explanation:

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The balanced chemical reaction will be: \(Mg(OH)_2 + 2 HCl --- > MgCl_2 + 2 H_2O\)

A balanced chemical reaction is a reaction that obeys the law of conservation of matter.

According to this law, matter can neither be created nor destroyed. However, they can be converted from one form to another during reactions.

Following this law, a balanced chemical reaction must, therefore, have the same number of species atoms before and after the reaction.

Hence, the balanced equation is \(Mg(OH)_2 + 2 HCl --- > MgCl_2 + 2 H_2O\)

The number of Mg, O, H, and Cl atoms before and after the reaction is the same.

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Answer:

Thus, the required heat is 79kJ 79 k J .

Explanation:

i think its the right bottem one

Answer:

Explanation:

The height of the wave is called the amplitude.

so the correct answer is B.

Answer:

Answer is no.B

Explanation:

Because this fruit grow in big bunches and also the stem is sort but don't needs support.

Answer:

H2O and NaCl are individual compounds. When NaCl is dissolved in H2O, a mixture is formed.

Explanation:

When water is warmed from its freezing temperature to its temperature of maximum density, it a. contracts.

When water is warmed from its freezing temperature (0°C) to its temperature of maximum density (around 4°C), it undergoes a process of  contraction.  As  the water warms up from 0°C, the hydrogen bonds between water molecules are rearranged, allowing the molecules to come closer together. This results in a decrease in the overall volume, causing the water to contract.

During this process, the water maintains its mass, so its weight remains constant. It does not increase in weight, as this would require an addition of mass. Likewise, it does not expand or maintain a constant volume during this temperature change. Expansion typically occurs when water is heated beyond 4°C, as the kinetic energy of the water molecules increases and they move further apart, causing an increase in volume.

In summary, when water is warmed from its freezing temperature to its temperature of maximum density, it contracts. This is due to the rearrangement of hydrogen bonds between water molecules, allowing them to come closer together and decrease in volume. Therefore the correct option A

The Question was Incomplete, Find the full content below :

When water is warmed from its freezing temperature to its temperature of maximum density, it...

a. contracts.

b. maintains a constant volume.

c. increases in weight.

d. expands.

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Answer:

La distancia recorrida por el móvil es 228.600 m

Explanation:

El movimiento rectilíneo uniforme MRU es el movimiento que describe un cuerpo o partícula a través de una línea recta a velocidad constante. Es decir:, en este caso el movimiento es lineal en una única dirección  y la velocidad de desplazamiento es constante.

La velocidad es una magnitud física que expresa la relación entre el espacio recorrido por un objeto y el tiempo empleado para ello mediante la expresión:

\(velocidad=\frac{distancia}{tiempo}\)

En este caso:

Reemplazando:

\(25 \frac{m}{s} =\frac{distancia}{9144 s}\)

y resolviendo obtienes:

distancia= 25\(\frac{m}{s}\) *9144 s

distancia= 228.600 m

La distancia recorrida por el móvil es 228.600 m

A movement is rectilinear uniform when an "object" (for example) travels in a straight path at a constant speed, given that its acceleration is zero.

Velocity (v) = 25m/s

Distance (d) = ?

Time (t) = 2.54hr = 9,144 s

Looking at the data, we see that the time is in hr, but we need it in seconds. Therefore we do a conversion from hours to minutes, taking into account that 1 hour is equal to 3600 seconds.

To calculate the distance traveled by the mobile, the speed is multiplied by the time taken.

For this the following formula is applied:

We apply the data in the formula; to solve for the distance.

Answer: The distance traveled by the mobile is 228,600 meters.

Answer:

a solute

Explanation:

the answer is a solute

The molar mass of aluminium sulfide (Al₂S₃) is 150g/mol.

Molar mass is the mass of a given substance divided by its amount, measured in moles. It is commonly expressed in grams (sometimes kilograms) per mole.

The molar mass of a substance can be calculated by summing up the atomic mass of all the elements made up in the compound.

According to this question, aluminium sulfide with the chemical formula Al₂S₃ is given.

Molar mass of Al₂S₃ = 27(2) + 32(3)

Molar mass = 54 + 96 = 150g/mol

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Ethers can impact us in several ways, both positive and negative like 1-Anesthesia 2-Solvents and Industrial Applications 3-Flammability 4-Health Effects

1-Anesthesia: Certain ethers, such as diethyl ether, have been historically used as general anesthetics due to their ability to induce loss of consciousness and provide pain relief during surgical procedures.

2-Solvents and Industrial Applications: Ethers can be used as solvents in various industries, including pharmaceuticals, paints, and cleaning products. However, prolonged exposure to certain ethers, especially those with high volatility, can lead to health issues such as respiratory irritation and central nervous system effects.

3-Flammability: Ethers are generally highly flammable and can pose a fire hazard if not handled properly. Precautions should be taken to ensure safe storage and handling of ether-based products.

4-Health Effects: Some ethers, such as ethylene glycol ethers, can have toxic effects on the body, particularly on the reproductive system and blood cells. Prolonged exposure or ingestion of these ethers can lead to serious health complications.

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Answer:

1.8 atm

Explanation:

For bottle "A"

P1 = 1.8 atm V1 = 2.4L, P2 = ?, V2 = 2.4 + 4.8 L = 7.2 L,

Thus using P1•V1 = P2•V2, we have;

P2 = (1.8 × 2.4)/7.2 = 0.6 atm

For bottle "B"

P1 = 1.8 atm, V1 = 4.8L, P2 = ?, V2 = 7.2L,

P2 = (1.8 × 4.8)/7.2 = 1.2 atm

We will now add the individual pressures of each bottle;

Total pressure = P(A) + P(B)

Total pressure = 0.6 + 1.2

Total pressure = 1.8 atm.

Answer:

0.164541341 g H2

Explanation:

1) Convert grams to moles by dividing by RMM of Magnesium (24.31g).

  2g Mg * (1 mol Mg / 24.31 g Mg) = 0.082270671 mol of Mg

2) Use the balanced equation's ratio of 1 mol Mg: 1 mol H2.

  0.082270671 mol of Mg = 0.082270671 mol of H2

3) Convert the mol of H2 back into grams by multiplying by H2's RMM (2 g).

  0.082270671 mol of H2 * 2 g H2 = 0.164541341 g H2

* Answer can be rounded to your liking *

C8 columns refer to chromatography columns that contain a stationary phase consisting of hydrocarbon chains with eight carbon atoms. c8 columns means none of the given options. The correct answer is (d) None of the above.

C8 columns refer to chromatography columns that contain a stationary phase consisting of hydrocarbon chains with eight carbon atoms. These carbon chains are typically covalently bonded to a solid support material.

The C8 designation represents the length and composition of the hydrocarbon chains in the stationary phase.

These columns are commonly used in chromatography techniques, such as reversed-phase liquid chromatography, where nonpolar compounds are separated based on their interactions with the hydrophobic stationary phase.

The C8 stationary phase provides moderate retention for analytes with different polarities, allowing for effective separation.

The statement about ionic bonding or the presence of a phenyl group is not applicable to C8 columns.

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The compound C6H12O6 is glucose and it contains three elements; carbon, hydrogen, and oxygen.

There are six carbon atoms, twelve hydrogen atoms, and six oxygen atoms in one molecule of glucose.

The formula for glucose is C6H12O6, which means that there are six carbon atoms, twelve hydrogen atoms, and six oxygen atoms in one molecule of glucose. Therefore, there are three different elements in the compound C6H12O6.

To summarize, the compound C6H12O6 contains three different elements, namely carbon, hydrogen, and oxygen.

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Answer:

hex-3-ene

remember the least number rule and since the double bond lies at 3rd C-atom from either ways, the compound is named hex (six carbon atoms) -3(position of double bond)-ene (primary suffix for unsaturated organic compound where any two carbons have double bond). hex-3-ene.

if you have any doubt, please feel free to ask :-))

Answer:

These are two types of indicators which show a solution is either an acid a natural or an alkali solution

Explanation:

Hope this helps :)

The molar conductivity of KCl at this concentration and  transport numbers and molar ionic conductivity of K+ and Cl– are

Generally, The transport number, t, of an ion can be calculated using the equation: t = (μi x Ci) / Λm,

where

Given that the electric mobility of

K+ is 5.9 x 10^-4 cm^2 V^-1 s^-1, the electric mobility of Cl- is 6.14 x 10^-4 cm^2 V^-1 s^-1, and the concentration of KCl is 0.30 mol L^-1, we can calculate the transport numbers as:

t(K+) = (5.9 x 10^-4 cm^2 V^-1 s^-1 x [K+]) / Λm t(Cl-)

= (6.14 x 10^-4 cm^2 V^-1 s^-1 x [Cl-]) / Λm

where

[K+] and [Cl-] are the molar concentrations of K+ and Cl- ions, respectively.

The molar ionic conductivity, Λi, of an ion can be calculated using the equation: Λi = μi x Ci,

where

Given that the electric mobility of K+ is 5.9 x 10^-4 cm^2 V^-1 s^-1 and the concentration of K+ is 0.15 mol L^-1, the molar ionic conductivity of K+ is:

Λ(K+) = 5.9 x 10^-4 cm^2 V^-1 s^-1 x 0.15 mol L^-1

Λ(K+) =8.85×10−5

Similarly, given that the electric mobility of

Cl- is 6.14 x 10^-4 cm^2 V^-1 s^-1 and the concentration of Cl- is 0.15 mol L^-1, the molar ionic conductivity of Cl- is:

Λ(Cl-) = 6.14 x 10^-4 cm^2 V^-1 s^-1 x 0.15 mol L^-1

Λ(Cl-) =9.21×10^−5

Finally, the molar conductivity of KCl can be calculated as:

Λm = Λ(K+) + Λ(Cl-)

=9.21×10^−5+8.85×10^−5

Λm =1.806×10−4

The transport numbers of K+ and Cl- can be calculated by

t(K+) = Λ(K+) / Λm and

t(Cl-) = Λ(Cl-) / Λm respectively.

t(K+) = 8.85×10−5/1.806×10−4 '

t(K+)=4.90033223×10^−9

and

t(Cl-) =9.21×10^−5/1.806×10−4

t(Cl-) =5.09966777×10^−9

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The molarity of the solution that results when making dilution from 10.0 ml of bleach by the addition of 100.0 ml water is 0.061 M.

This problem is about stoichiometry. First, we have to calculate the mass of the bleach.

From the bleach, we can calculate the mass of sodium hypochlorite.

Then we can calculate the number of moles of sodium hypochlorite.

The molarity for NaOCl

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Answer:

b

Explanation:

Ethyne  will contain the strongest bond between the two carbon atoms as  the triple bonds are the strongest.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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Explanation:

False, gray whales average 75 miles per day at a speed of 5 mph and is the longest annual migration of any mammal.

Answer:

That would be speed.

Explanation:

Answer:

b refraction

Explanation:

i saw on nasa's website lol

Answer:

V=a3

Explanation:

sorry no explantion, but answer

The mass upon volume take the measure of the substance is known to be its density.

As we know the formula of density is:

density = mass / volume. ------ (1)

Mercury is a heavy silver colored element.

Also called as a quicksilver , it's formula is Hg.

Mercury's atomic number is 80.

According to question,

It is given in the question,

Mass of mercury ( Hg) = 537.0537.0 g

Volume of mercury (Hg)  = 39.9939.99 ml

Now putting the given values in formula (1)

density = 537.0537.0 / 39.9939.99

​density = 13.42 g/ml

Hence, the density of mercury is 13.42 g/m

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