Explain your thinking. describe the "rule" or reasoning you used to decide if something is a plant.

The ligand field splitting energy in the [V(OH2)6]3 complex is 21,000 cm-1, or 259 kJ/mol.

The green color and absorption of light at 560 nm suggest that the [V(OH2)6]3 ion has undergone a ligand field transition from its ground state to an excited state. The ligand field splitting energy, denoted as Δ, is the energy difference between the two states. We can use the relationship between energy and wavelength, E = hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength, to calculate the energy of the absorbed light.

E = hc/λ = (6.626 x 10^-34 J s) x (3.00 x 10^8 m/s) / (560 x 10^-9 m) = 3.55 x 10^-19 J

To convert this energy to units of cm-1, we use the relationship E = hcν, where ν is the frequency.

ν = E/hc = (3.55 x 10^-19 J) / (6.626 x 10^-34 J s x 3.00 x 10^8 m/s) = 1.77 x 10^14 Hz

The frequency in units of cm-1 is obtained by dividing by the speed of light in cm/s.

ν(cm^-1) = ν/ c = (1.77 x 10^14 Hz) / (3.00 x 10^10 cm/s) = 5,900 cm^-1

Finally, we use the Tanabe-Sugano diagram or empirical equations to relate the ligand field splitting energy to the frequency. For the [V(OH2)6]3 complex, the ligand field splitting energy is 21,000 cm^-1, or 259 kJ/mol.

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Answer:

In order to determine whether the original material was a uniform/pure-looking mixture or a chemical compound broken into two new compounds, the following points must be noted;

1. If the two new materials are separated by physical means without any  chemical change occurring, the original material is a pure-looking mixture, but if a chemical reaction was involved in separating the material, then it is a compound.

2. If the individual properties of properties of the constituents were retained in the original material, the substance is a mixture, but if the properties of the constituents differed entirely from that of the material, then the material is a compound.

3. If the constituents of the material are not present in a fixed ratio, the material is a mixture but if they are present in a fixed ratio, the material is a compound.

Explanation:

When a substance is being separated into its components, the nature of the substance can be determined by the components obtained.

Matter can be classified into pure substances and mixtures.

Pure substances include elements and compounds which have distinct chemical properties, whereas mixture are composed of two or more constituents physically joined together.

In order to determine whether the original material was a uniform/pure-looking mixture or a chemical compound broken into two new compounds, the following points must be noted;

1. If the two new materials are separated by physical means without any  chemical change occurring, the original material is a pure-looking mixture, if the a chemical reaction was involved in separating the material, then it is a compound.

For example, a sugar and water mixture can be easily separated by evaporation and crystallization to obtain sugar and water respectively, but water which is composed of the elements hydrogen and oxygen cannot be separated by any physical means but by means of a chemical reaction, electrolysis.

2. If the individual properties of properties of the constituents were retained in the original material, the substance is a mixture, but if the properties of the constituents differed entirely from that of the material, then the material is a compound.

For example, a pure-looking mixture of sugar and water has the sweet taste of sugar and the liquid properties of water. However, water, a compound composed of hydrogen and oxygen which are gases, is a liquid and gas properties entirely different from either two.

3. If the constituents of the material are not present in a fixed ratio, the material is a mixture but if they are present in a fixed ratio, the material is a compound.

For example, sugar and water can be mixed together in any ratio to produce a sugar solution, but hydrogen and oxygen are always in a fixed ratio of 2:1 in water

Answer:

boiling it

Explanation:

the most simple way to purify water both at home and in the wild, is by boiling in kettle or if you are in the wilderness simply by boiling it over a fire.

One of the ways to purify water is by filtration.

What is filtration process?

Filtration is a physical separation procedure that uses a filter material with a complicated structure through which only fluid can flow to separate solid matter and fluid from a mixture. Oversize solid particles are those that cannot pass through the filter medium, and the fluid that does is known as the filtrate. Oversize particles can form a filter cake on top of the filter and also block the filter lattice, preventing the fluid phase from passing through the filter, a process known as blinding. The effective pore size of a filter is the size of the biggest particles that can successfully pass through it.

Water can be purified by the process of filtration.

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The hybridization change that occurs for phosphorus in the reaction PCl3 + Cl2 → PCl5 is sp3 → sp3d.The hybridization change that occurs for phosphorus in the reaction PCl3 + Cl2 → PCl5 is sp3 → sp3d.PCl3 + Cl2 → PCl5The above reaction is a balanced chemical equation.

The phosphorus (P) atom in PCl3 has a hybridization of sp3, whereas the Cl2 molecule has a hybridization of sp2. During the formation of PCl5, there is a hybridization change in the phosphorus atom from sp3 to sp3d.A change in the hybridization of an atom occurs when it is involved in a chemical reaction. The changes in hybridization occur due to the difference in electronegativity of the atoms in the reactants or due to the bond formation.

For instance, in the reaction PCl3 + Cl2 → PCl5, the reaction occurs due to the formation of a covalent bond between the P atom in PCl3 and Cl atom in Cl2. This causes the electrons in the 3p subshell of the P atom to undergo excitation, resulting in the hybridization change from sp3 to sp3d.Hence, the correct answer is sp3 → sp3d.

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Answer:

Cl has 7 dots

if its Cl2; Cl-Cl it will contain 14 dots

Explanation:

The appearance and observable qualities of matter are considered to be its physical attributes. Colour, smell, taste, solubility, etc. An attribute that appears during a chemical reaction is known as a chemical property. A few examples include pH, reactivity, and flammability, etc. The correct option is B.

The chemical makeup or content of matter are not altered after a physical transformation.  The internal makeup is unaffected as molecules rearrange themselves during this transformation. The chemical attribute is unaffected by a physical change.

Here both crushing a mineral into powder and picking up a paper clip with a magnet are physical changes.

Thus the correct option is B.

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The mass number is the atomic mass rounded to a whole number, i.e., which is a value that rounds the atomic weight to a near number.

The expression mass number is used in chemistry to denote the total amount of subatomic particles i.e. atomic protons and neutrons, which are present in a given atom (for example hydrogen has only one proton and one neutron).

Therefore, with this data, we can see that mass number denotes the overall amount of protons and neutrons present in a given atom, which is equal to one in the hydrogen atom

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Answer:

displacement reaction..

Option (d)  a mixture has different melting and boiling points than the pure substances from which it is made.

This property of a mixture can be used to tell the difference between a container of salt water and a container of distilled water as the two given mixtures are homogeneous mixture as they have a uniform composition throughout the substance.

Therefore the given two mixtures are solution and hence they have different melting and boiling points than the pure substances from which they are made of.

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Answer:

Both types of waves transfer energy

Explanation:

I think that's right

Electromagnetic waves and sound waves  both types of waves can transfer energy.

The electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.

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The percent composition by mass for sodium (Na) in Sodium phosphate (Na₃PO₄) : 42.07%

Given

Compound of Sodium phosphate (Na₃PO₄)

Required

The percent composition by mass for sodium (Na)

Solution

The Comparative Law (Proust ) : compounds are formed from elements with the same Mass Comparison

MW Na₃PO₄ = 163,94 g/mol

Ar Na=22,989769g/mol

\(\tt \%mass~Na=\dfrac{3.Ar~Na}{MW~Na_3PO_4}\times 100\%\\\\\%mass~Na=\dfrac{3\times 22.99}{163.94}\times 100\%\\\\\%mass~Na=42.07\%~Na\)

Answer:

D

Explanation:

Because chemicals like uranium are created as wastes which is not good for the environment

The complete electron configuration of vanadium (element 23) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d³4s² .

The electron configuration describes the arrangement of electrons in an atom. It follows a specific pattern based on the energy levels and orbitals of the atom. In the first step, we start by filling the 1s orbital, which can hold a maximum of 2 electrons. Then we move to the 2s orbital, which can also hold 2 electrons. Next, we fill the 2p orbital with 6 electrons (2 in the 2px, 2 in the 2py, and 2 in the 2pz orbitals).

Moving on to the next energy level, we fill the 3s orbital with 2 electrons. Then, we fill the 3p orbital with 6 electrons (2 in the 3px, 2 in the 3py, and 2 in the 3pz orbitals).

Finally, we reach the 3d orbital. In the case of vanadium, it has 5 electrons in the 3d orbital (3d³). Lastly, the 4s orbital is filled with 2 electrons.Therefore, the complete electron configuration of vanadium is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d³4s² .

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Answer:

The correct statement is;

(B) Only II

Explanation:

I) The atomic mass unit or amu which is also known as daltons which is defined as 1/12 × the mass of a carbon-12 atom, which is therefore, 1.660538921 × ⁻²⁴ grams

Therefore, the mass of 1 atom of carbon-12 = 12 amu

II) The mass of one mole of oxygen-16 is 16 grams while the mass of one mole of carbon-12 is 12 grams

The mass of 4 atoms of carbon 12 = 4 × 12 amu = 48 amu

The mass of 1 atom of oxygen-16 = 15.99491461956 amu

Therefore, the mass of 3 atoms of oxygen-16 = 3 × 15.99491461956 = 47.9847438587 amu ≈ 48 amu

Therefore only II is correct.

Answer: Protons have a positive charge while electrons have a negative charge.

Explanation:

An auditor should consider the risk of assessing control risk too low, the desired level of assurance, and the allowable risk of overreliance.

These factors help the auditor determine an appropriate tolerable rate, which is the maximum number of deviations from the prescribed control procedures that can be accepted without altering the auditor's planned assessed level of control risk. When assessing the tolerable rate of deviations of a test of controls that was performed using statistical sampling, an auditor should consider the acceptable level of risk (or confidence level) they want to have in their conclusion, the size of the sample, the rate of deviations observed in the sample, and the amount of deviation that the auditor is willing to accept before concluding that the control is ineffective.

The auditor should also consider any qualitative factors that may affect the control's effectiveness, such as the nature of the control, the complexity of the underlying transactions, and the potential for management override. By taking all of these factors into account, the auditor can determine an appropriate tolerable rate of deviations for the control in question.

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Answer:

-3

Explanation:

What is the overall charge of anion that has 15 protons, 18 electrons and 17 neutrons?

ONLY CHARGED PARTICLES CONTRIBUTE TO THE OVERALL CHARGE, SO

+15 -18 = -3 OVERALL CHARGE

Remember

Total charge

Answer:

its c

Explanation:

because i have the most wrinkly brain

If you find yourself rushing to complete many different tasks at once, it may be useful to clarify the deadlines for each of the tasks with your boss.

It is common in an office setting to be assigned many tasks to be completed within a short time frame. However, all these tasks must be prioritized in order.

Hence, If you find yourself rushing to complete many different tasks at once, it may be useful to clarify the deadlines for each of the tasks with your boss.

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The synthesis of silver nanoparticles can involve various methods and conditions, but a general order of steps in a typical synthesis process might be as follows:

Preparation of the silver precursor: Silver nitrate (AgNO3) is commonly used as a silver precursor. It is dissolved in water or other suitable solvents to prepare a silver precursor solution.

Preparation of the reducing agent: A reducing agent, such as sodium borohydride (NaBH4) or sodium citrate, is prepared separately. The reducing agent will react with the silver precursor to form silver nanoparticles.

Mixing the silver precursor and reducing agent: The silver precursor solution and the reducing agent solution are mixed together under suitable conditions, such as controlled temperature and stirring, to allow the reduction reaction to occur.

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SF holds ten elections in the central Splunk atam In a tigenal two - tier structure structure, this indicates there are 5 electron pairs annanged. Two are exidl and three of a Fluonne are equatonal.

Each atom in a bond between two atoms will share 1 electron. The electrons taking part in this connection are referred to as the electron bond pairs. Example: All four hydrogen atoms in the methane molecule form a bond link with the central carbon atom.

Bond pairs refer to the shared electron pairs that exist between the bound atoms. Bonding may not involve all of the valence electrons. Lone pair of electrons are defined as electron pairs without a partner in a bond. For instance, there really are seven bond pairings but no lone pair in C2H6 (ethane).

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Solids have a dignified structure. The particles are stuck together causing them to not flow. Liquids and gases have particles that move around so they can take the shape of their container.

Answer:

Option A

Explanation:

The total heat absorbed during the chemical reaction is the total heat released by the surrounding.

Net change of heat is equal to zero

Hence, the energy liberated from the air or the walls of the containers would be equal to the energy absorbed by the chemical reactions is equal to 100 Kj

Thus, option A is correct

The balanced chemical equation is as follows:

4KClO₃ ₍s₎ ⇒ 3KClO₄ ₍s₎ + 3KCl

The term balanced chemical equation is defined an equation where the number of atoms of each type in the reaction is the equal on both reactants and product sides.

The chemical equation must be balanced in order to obey the law of conservation of mass. When the number of different atoms of elements in the reactants side equals the number of atoms in the products side, the chemical equation is balanced.

Thus, The balanced chemical equation is as follows:

4KClO₃ ₍s₎ ⇒ 3KClO₄ ₍s₎ + 3KCl

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Answer:

this is not the full question

\(\\ \rm\Rrightarrow pH=-log[H^+]\)

\(\\ \rm\Rrightarrow pH=-log[2.5\times 10^{-6}]\)

\(\\ \rm\Rrightarrow pH=-log2.5-log10^{-6}\)

\(\\ \rm\Rrightarrow pH=-0.398+6\)

\(\\ \rm\Rrightarrow pH=5.602\)

The given question is incomplete. The complete question is:

Which molecule would diffuse faster \(SO_2\), or \(SO_3\),? Explain your reasoning.

Answer: \(SO_2\) will diffuse faster as it has low molecuklar weight.

Explanation:

From Graham's law of diffusion rates, the rate of diffusion of a gas is inversely proportional to the square root of its molar mass.

\(Rate\propto \sqrt\frac{1}{M}\)

or \(\frac{Rate_1}{Rate_2}\propto \sqrt\frac{M_2}{M_1}\)

Molecular mass of \(SO_2\) is 64 g/mol and Molecular mass of \(SO_3\) is 80 g/mol

Thus as molecular mass of is less , it will diffuse faster.

After opening to trade, a capital-abundant country will export the capital-intensive good and both the country and its trading partners will be better off. Capital-intensive goods refer to those products that require more investment in machines, equipment, and technology for their production.

Since a capital-abundant country has a relatively higher amount of capital, it can produce these goods more efficiently than labor-intensive products. By exporting capital-intensive goods, the country can earn higher profits and increase its overall economic growth. Furthermore, the exporting of capital-intensive goods can also lead to improved economic conditions for its trading partners. These partners can purchase these goods at a lower price, as the exporting country can produce them at a lower cost. The importing of these goods will lead to an increase in consumption, investment, and overall economic growth in the importing countries.

In conclusion, the opening to trade can benefit a capital-abundant country through the exporting of capital-intensive goods, which leads to increased profits and economic growth. It also benefits the importing countries through the increased availability of these goods at a lower cost, leading to improved economic conditions.

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Answer:

Explanation:

The sketch of the curve for two Br atoms can be seen in the image attached below. From the image below, we can deduce the following:

On the periodic table, the Bromine (Br) atom is the fourth member in the halogen family group. The atomic size increases from top to bottom down the group, thus Br atom posses a larger atomic size than Cl atom. As a result of that, the bond length formation between the two Br atoms will be larger compared to that of the two Cl atoms.

The reaction converts the aldehyde group of L-glucose to a carboxylic acid group, resulting in the formation of an aldonic acid.

The Fischer projection of the aldonic acid formed when L-glucose reacts with  Br₂/H₃O⁺ is shown(image attached). In the Fischer projection, the horizontal lines represent bonds that project out of the plane of the paper, while the vertical lines represent bonds that project into the plane of the paper.

The -OH group on the carbon that was previously the aldehyde carbon is now replaced with a -COOH group, while the other -OH groups remain in the same position. The reaction with   Br₂/H₃O⁺ converts the -OH group on the second carbon to a -Br group. The resulting aldonic acid has a carboxylic acid group and a bromine substituent on adjacent carbon atoms.

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Answer:

It's typically a mixture of particles and rocks of all sizes

Explanation:

The atomic radius is a parameter of atoms that refers to the distance from the center of the nucleus to the largest shell occupied by the valence electron of a neutral element.

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