What will be the mass of one mole of carbon atoms?.

Answer:

option B. less time than the other runners

hope it helps you

Track runners will all cover the same distance. The winner will take less time than the other runners. Therefore, the correct option is option B.

Despite the direction of something like the journey, distance is the overall path that an item in motion has traveled. Since just the length of the path travelled is calculated as well as the motion direction is ignored, distance is referred to as a scalar number.

Displacement is described as the overall alteration of an object's location and motion direction. Displacement is recognized as a vector quantity since it takes into consideration both the directions of the motion and the amount of the changing position. Track runners will all cover the same distance. The winner will take less time than the other runners.

Therefore, the correct option is option B.

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The major product formed upon treatment of (R) 2-bromohexane with sodium cyanide is (S) 2-cyanohexane. The correct option is b.

When (R) 2-bromohexane is treated with sodium cyanide (NaCN), a nucleophilic substitution reaction takes place. The nucleophile, cyanide ion (CN⁻), attacks the electrophilic carbon of the bromoalkane, resulting in the replacement of the bromine atom with a cyanide group.

Since the starting compound, (R) 2-bromohexane, has a chirality center at the second carbon atom, the reaction proceeds with inversion of configuration due to the nucleophilic attack at the backside of the molecule. As a result, the major product formed is the (S) enantiomer of 2-cyanohexane.

The reason for this inversion of configuration is due to the SN2 (substitution nucleophilic bimolecular) mechanism, where the nucleophile attacks the carbon atom bearing the leaving group from the opposite side, leading to a complete reversal of stereochemistry.

Therefore, the correct answer is b. (S) 2-cyanohexane, which represents the major product obtained from the reaction between (R) 2-bromohexane and sodium cyanide.

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The empirical formula of the compound would be  \(P_2O_5\).

The empirical formula of a compound is the chemical formula of the compound based on the simplest whole-number ratio of its component atoms.

The compound in question contains phosphorus, P, and oxygen, O.

P = 43.64

O = 56.36

First, let's find the moles of each atom by dividing their percentage composition by their respective molar weights.

P = 43.64/30.97

  = 1.4

O = 56.36/16

   = 3.5

Next would be to divide the moles by the smallest mole.

P = 1.4/1.4

  = 1

O = 3.5/1.4

   = 2.5

Thus, the smallest, whole-number ratio of the two atoms would be 2:5. In other words, the empirical formula of the compound is \(P_2O_5\).

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The overall order of the chemical kinetics is 1.

To determine the order of each chemical and the overall order of the chemical kinetics in the given differential rate law, we can analyze the exponents of the concentration terms.

The differential rate law for the balanced chemical reaction is given by:

rate = k [A]^2 / [B]^2 [C]

For each chemical, the order is represented by the exponent of its concentration term:

1. Order for chemical A: The exponent for [A] is 2, so the order for chemical A is 2.
2. Order for chemical B: The exponent for [B] is -2 (since it's in the denominator), so the order for chemical B is -2.
3. Order for chemical C: The exponent for [C] is 1 (since there is no exponent written, it is assumed to be 1), so the order for chemical C is 1.

To find the overall order of the chemical kinetics, we add the orders for each chemical:

Overall order = Order of A + Order of B + Order of C
Overall order = 2 + (-2) + 1
Overall order = 1

So, the orders for each chemical are A: 2, B: -2, and C: 1, and the overall order of the chemical kinetics is 1.

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Answer:

sodium proxide

Explanation:

Here, sodium is allowed to shift from 4p to 4s, and its wavelength is 2.214 m. A wave's wavelength is described as the characteristic that measures the separation between adjacent spots.

Calculations are made between the two succeeding waves. The Greek letter lambda () is used to represent it. Thus, the wavelength is defined as the separation between one wave's crest or trough and the following wave. The chemical element sodium has the atomic number 11 and the letter Na, which derives from the Latin natrium. It is a malleable, silvery-white, and extremely reactive metal. In group 1 of the periodic table, sodium is an alkali metal.

a change from 4p to 4s

As l = 1 for a 4p state and I = 0 for a 4s state, this transition is permitted because l = 1 - 0 = 1

4p (Ei) = 3.75 eV energy

Energy of 4s (E2) = 3.19 eV,

with = 1240 eV nm / (E2 - E1) = 2214 nm 2.214 m.

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The complete question is-

Is a 4p S 4s transition allowed in sodium? If so, what is its wavelength? If not, why not?

Answer: D.  \(1.0\times 10^{-8.43}M\)

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydronium ion concentration.

\(pH=-\log [H_3O^+]\)

Putting in the values:

\(8.43=-\log[H_3O^+]\)

\([H_3O^+]=10^{-8.43}=3.7\times 10^{-9}M\)

Thus \([H_3O^+]\) concentration is \(10^{-8.43}M\)

Answer: B. Potential energy

Explanation:

There are several form of potential energy including gravitational, magnetic, electrical, chemical and eleastic potential

Answer:

Potential Energy

Explanation:

Potential energy is stored energy and the energy of position.

Chemical, Gravitational, and Elastic are all stored energy and the energy of position.

Hope this helps!

:D

Respiration has an equal enthalpy to cellular respiration. The correct option is D.

A thermodynamic system's enthalpy is the sum of its internal energy and the product of its volume and pressure.

It is a state function utilized in numerous measurement techniques in chemical, biological, and physical systems at constant pressure, which the large ambient atmosphere conveniently provides.

At its initial stage, cellular respiration combines the information of photosynthesis, and photosynthesis uses the results of cellular respiration.

The processes of cellular respiration and photosynthesis have the same enthalpy.

Thus, the correct option is D.

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Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The binding of these base pairs forms the structure of DNA

Answer:

adenine (A) and thymine (T) pair together and cytosine (C) and guanine (G) pair together in DNA

Answer:

c

Explanation:

the plate tectonics collide there a lot

The correct answer for question 20 is: Electricity and water.

For question 3, the correct answer is: International agreements that aim to reduce the impact of human activities on the environment. Environment conventions are international agreements or treaties that are established among nations to address environmental issues and promote sustainable practices. These agreements aim to reduce pollution, conserve natural resources, protect ecosystems, and mitigate climate change. They involve negotiations and commitments from participating countries to implement measures and policies to minimize the adverse impacts of human activities on the environment.

Environment conventions are international agreements that bring together nations to collectively address environmental challenges. These agreements are crucial for promoting global cooperation and establishing frameworks for sustainable development. Through negotiations and commitments, countries work towards reducing pollution, conserving biodiversity, mitigating climate change, and preserving natural resources for future generations.

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Answer:

The answer is

Explanation:

To find the number of moles of a substance given it's number of entities we use the formula

\(n = \frac{N}{L} \\ \)

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

N = 2.60x10^27 atoms of boron

The number of moles is

\(n = \frac{2.60 \times {10}^{27} }{6.02 \times {10}^{23} } \\ = 4318.93687...\)

We have the final answer as

Hope this helps you

If 0.6 moles of \(NH_3\) were produced from the reaction, the mole of \(H_2\) that is required will be 0.90 moles.

From the equation of the reaction, the mole ratio of  \(H_2\)  that reacts to that of  \(NH_3\) that is produced is 3:2.

In other words, for every 1 mole of  \(NH_3\) that is produced, 1.5 moles of  \(H_2\)  is required.

Now, if 0.600 moles of  \(NH_3\) were produced from the reaction, the amount of  \(H_2\)  that is required can be calculated from a simple ratio as thus:

1 mole of  \(NH_3\) = 1.5 moles of  \(H_2\)  

0.600 moles of  \(NH_3\) = 1.5 x 0.600/1

                                    = 0.90 moles of  \(H_2\)  

In other words, if 0.600 moles of  \(NH_3\) were produced in the reaction, 0.90 moles of  \(H_2\)  would be needed to react.

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Because it has a higher mass than CO2 (g), CO2 has a higher absolute entropy value.

In order for the atoms of the various chemical elements to be bound together by strong chemical bonds, a compound must be created by mixing two or more different chemical components.

Atoms of various elements are chemically mixed in compounds in a predetermined ratio. A pure chemical compound made of the same type of atom is referred to as an element. Composition. Different elements are found in compounds in a predetermined ratio, organized by chemical bonds in a predetermined way.

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To find the maximum number of optically active stereoisomers, we need to use the formula:

maximum number of stereoisomers = 2^n

Where "n" is the number of chiral centers (asymmetric carbon atoms) in the molecule.

A chiral center is a carbon atom that is attached to four different groups. Chiral centers can exist in both cyclic and acyclic compounds. In cyclic compounds, the chiral center can be part of the ring structure.

Optical isomers are stereoisomers that have the same molecular formula and the same connectivity but differ in the arrangement of their atoms in space, resulting in non-superimposable mirror images.

Each chiral center in a molecule can generate two different stereoisomers. Therefore, the maximum number of stereoisomers in a molecule with "n" chiral centers will be 2^n.

For example, a molecule with two chiral centers can have a maximum of 2^2 = 4 stereoisomers (two pairs of enantiomers). Similarly, a molecule with three chiral centers can have a maximum of 2^3 = 8 stereoisomers (four pairs of enantiomers).

It is important to note that not all stereoisomers are necessarily optically active. For a stereoisomer to be optically active, it must be chiral and not possess a plane of symmetry or an internal mirror plane.

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The brush used for artificial nail services is made the of a. nylon

This type of hair is preferred because it is easy to clean and durable. Nylon hair also has the ability to hold onto liquid products, such as acrylic or gel, without soaking them up too quickly, allowing the nail technician to have more control over the application process. While natural hair brushes may be used for some services, such as gel polish application, they are not ideal for use with acrylics or other liquid nail products as they can absorb too much of the product and become damaged over time.

Plastic brushes are not typically used in artificial nail services, as they are not as effective at holding and applying the products. Overall, a nylon hair brush is the preferred choice for artificial nail services due to its durability, ease of cleaning, and ability to hold liquid products.

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Answer:

B. is the answer

Explanation:

(A) (B) + (C) (D) (AD) +(CB)

(H) (F) + (Na) (OH) --> H2O+NaF

Answer:

Approximately 7.65

Explanation:

math.

skillz.

Answer:

Environmentalism

Explanation:

Environmental Science is the pursuit of knowledge about the environment, while Environmentalism as you know, "a social movement dedicated to protecting the natural world and people from undesirable changes".

Answer:

2 electron in 1 energy level

and 8 at second

also 8 at third

because only 4 shells are in the high school level

k,l,m,n

Answer:

There are more hours of daylight at Location X than at Location Y.

Explanation:

The student has created a model in the diagram in which sun and earth are presented. There are two point location on earth one is x and other is y. The x point is declined towards the sun which means that locations on point x receives more light than location Y. There will be more hours of daylight at Location x.

The best comparison of the conditions at Location X and Location Y is there are more hours of daylight at Location X than at Location Y.

The sun is the big spherical of heat and energy. The sun gives light. The Earth is the third planet of our solar system.

Thus, the correct option is C, There are more hours of daylight at Location X than at Location Y.

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Answer:

When bit into without the onion's outermost skin, apples and onions share an extremely similar crunch. ... The flavors of the apple neutralize the onions pungency. So there you have it, if you plug your nose, close your eyes and bite into an onion...it is indistinguishable from an apple... until your nostrils open again.

Explanation:

Answer:

Apples, potatoes and onions will all taste the same if somehow you were to block your sense of smell (plug your nose).

Explanation:

Answer:

Proton   -  Positive charge

Neutron - No charge

Electron - negative charge

Explanation:

An atom is the smallest particle of matter that takes part in a chemical reaction.

It is made up of three fundamental subatomic particles.

Both the protons and neutrons occupy a tiny center where the mass of the atom is concentrated. The region is called the nucleus.

A liquid is allowed to evaporate and leaves no residue. It can not be determined whether it was an element, a compound, or a mixture.

A water vapor molecule stays roughly 10 days in the atmosphere after it has evaporated. Water vapor starts to cool back down as it ascends higher in the atmosphere. The water vapor condenses when it becomes cold enough, turning it back into liquid water. Eventually, individual water droplets will condense to create clouds and precipitation.

It is not possible to determined whether it would be an element, a compound and mixture because the size of the particle will be too less.

A method for separating homogenous mixtures with one or even more dissolved salts is called evaporation. The procedure separates the liquid from the solid components. Usually, the procedure entails heating the combination until there is no more liquid is present.

Therefore, it can not be possible to determined whether it was an element, a compound, or a mixture by evaporation.

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Answer:

The most likely atom involved in coordination of calcium ions found in HRP is oxygen (D).

Option c is correct. Specific behavior does chelate ligands possess these ligands can simultaneously occupy two or more sites in a coordination sphere of the metal.

The many donor atoms in the ligand, which can coordinate to the metal center in a way that maximizes their interactions with the metal ion, are what cause this behavior.

Chelating ligands can form more stiff and stable complexes with metals by occupying numerous sites, which can be helpful in a variety of industries like catalysis, medicine, and materials research.

The complex may take on a particular shape and orientation as a result, which may have an impact on its characteristics and responsiveness. The solubility and bioavailability of metal ions in biological systems can also be improved by chelation.

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Complete question

What specific behavior do chelating ligands possess?

a. these ligands occupy only one site in a coordination sphere.

b. these ligands change the oxidation state of the complex by binding to a metal center.

c. these ligands can simultaneously occupy two or more sites in a coordination sphere of the metal.

d. these ligands change the color of the complex by binding the metal in a coordination sphere.

Neutral, because anything too acidic or basic would kill a person

Answer:

Neutral.

Explanation:

Milk has a PH of 8, and if I am wrong, it has a PH of 6. Basically, it has a margin of error of 2; PH 5-8.

Answer:

Explanation:

a) 202.4 g

b) 185.24 m

c) 0.13 dm

d) 6.91 L

e)0.0546 mol

f) 2.7 s

g) 42kg

h) 0

i) -0.11 g

j) -0.34 mL

Unlike protons and neutrons, which are housed inside the atom's nucleus at its center, electrons are found outside the atom.

An atom can have a label in addition to a symbol or atomic number. The label is formatted as "(text)" (without the quotation marks), which means "text, closed curved bracket, open curved bracket." If an isotopic mass is present, it should come after the chemical symbol, followed by the label.

The element is represented by the letter(s) in the centre. The atomic number, which indicates the quantity of protons, is the number in the bottom left corner.

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