Consider the ranges of pitches made by these instruments and vocals.

A graph with frequency in Hertz on the x axis from 27 Hertz to 4166 Hertz. On the y axis are piccolo, oboe, flute, soprano vocal, violin, alto vocal, trumpet, clarinet, tenor vocal, bass vocal, guitar, french horn, bassoon, tuba, standup bass, bass guitar and pipe organ. Piccolo is 620 to 4166 Hertz, Oboe is 275 to 2200 Hertz, flute is 275 to 2200 Hertz, Soprano vocal is 200 to 1850 Hertz, violin is 196 to 3135 Hertz, alto vocal is 180 to 1760 Hertz, trumpet is 164 to 1050 Hertz, clarinet is 164 to 1900 Hertz, tenor vocal is 130 to 1306 Hertz, bass vocal is 96 to 987 Hertz, guitar is 83 to 850 Hertz, french horn is 83 to 1050 Hertz, bassoon is 61 to 529 Hertz, tuba is 49 to 246 Hertz, standup bass is 41 to 275 Hertz, bass guitar is 41 to 400 Hertz and pipe organ is 27 to 4166 Hertz.
In terms of the highest pitches they can make, which list correctly orders the instruments and vocals from highest to lowest?

clarinet, bassoon, piccolo, soprano vocal
piccolo, oboe, standup bass, tenor vocal
tuba, bass guitar, violin, piccolo
violin, clarinet, French horn, tuba

Answer:

d

Explanation:

d is the answer because the chemicals have changed forms from a solid to gaseous state of matter.

Atomic orbitals and molecular orbitals are mathematical functions that describe the behavior of electrons in atoms and molecules, respectively. the attachment 1 below describes the labelling of  the atomic and molecular orbitals shown below where there is 2s-2p mixing.

Atomic orbitals are the solutions of the Schrödinger equation for the electron in an isolated atom. They are characterized by the principal quantum number (n), the angular momentum quantum number (l) and the magnetic quantum number (m). Each orbital can hold a maximum of two electrons, one with a spin of +1/2 and the other with a spin of -1/2.Molecular orbitals, on the other hand, are the solutions of the Schrödinger equation for the electrons in a molecule

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the complete question is :

Label each of the atomic and molecular orbitals shown below where there is 2s-2p mixing. O 2s O 2p O sigma_2s O sigma_2s^* O sigma_ 2p O sigma_2p^* O pi_2p O pi_2p^*

Nitrogen molecules interact with one another through strong forces.

Individual molecules of a material interact with one another through the mediation of these forces. Most of the physical and chemical features of matter are caused by intermolecular forces. The phrase "intermolecular forces" refers to the forces that exist between the molecules themselves.

Intermolecular force is the attraction between two atoms or molecules that causes them to join together to create a molecule or other substance. In essence, it has a beautiful nature. It also affects atoms and ions.

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The mass of snow in kilograms that accumulates on your lawn per hour is 35.91 kg.

The area of the lawn is determined as follows:

Area of the lawn = length * breadth

Area of the lawn = l20 * 19 square feet

Area of the lawn = 380 square feet

Mass of an average snowflake = 1.50 mg

Total number of snowflakes that the lawn accumulates per hour = 1050 * 380 * 60

Total number of snowflakes that the lawn accumulates = 23940000 snowflakes

Total mass in kilograms of that the lawn accumulates per hour = 23940000 * 1.50 mg * 1 mg / 1000000 kg

Total mass in kilograms of that the lawn accumulates = 35.91 kg

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The major product(s) formed by treating 1,2-dimethyl cyclopentene with Br₂ reaction is attached below.

Cycloalkanes include 1,2-dimethylcyclopentane.The liquid cyclopentene has no color. Water insoluble and less dense than water.

The chemical compound cyclopentene has the formula (CH2)3(CH)2. It has an odour similar to that of gasoline and is colourless. Since it has few uses, gasoline typically contains concentrations of less than 1% of it, making it a minor component. One of the main cycloalkenes is it.

The polyurethane foams used to insulate refrigerators and freezers use cyclopentane as a blowing agent. Cyclopentane does not contain hydro-fluorocarbons, in contrast to some other materials used to insulate refrigerators (HFCs). Equivalent CO2 emissions are significantly reduced when cyclopentane is used.

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As the percentage of impurities increases, the ability of conduction of conductivity decreases.

Conduction is defined as a process as a means of which heat is transferred from the hotter end of the body to it's cooler end.Heat flows spontaneously from a body which is hot to a body which is cold.

In the process of conduction,heat flow is within the body and through itself.In solids the conduction of heat is due to the vibrations and collisions of molecules while in liquids and gases it is due to the random motion of the molecules .

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The H+ ions concentration in a 0.10 M HF solution that is 8.4% ionized is 0.0084 M.

The ionization of a weak acid, such as hydrofluoric acid (HF), can be described by the following equilibrium:

HF(aq) <=> H+(aq) + F-(aq)

The equilibrium constant for this reaction is known as the acid dissociation constant (KA) and can be used to calculate the H+ ion concentration in a solution of a weak acid.

The percent ionization of a weak acid is defined as the ratio of the concentration of H+ ions at equilibrium to the initial concentration of the acid, multiplied by 100.

In this case, the percent ionization of the 0.10 M HF solution is 8.4%. Therefore:

(H+ ion concentration at equilibrium/initial concentration of HF) * 100 = 8.4%

Hence, the H+ ion concentration at equilibrium is (8.4/100) * 0.10 M = 0.0084 M

So, the H+ ion concentration in a 0.10 M HF solution that is 8.4% ionized is 0.0084 M.

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The volume in deciliters of 100 drops of medicine is calculated as 1.77 deciliter.

Deciliter is a metric unit of capacity which is equal to ¹/₁₀ liter.

Some medical tests report result in grams (g) per deciliter (dL). Gram is equal to the weight of one milliliter or 16 drops of water which is around 1/30 of an ounce. Deciliter measures fluid volume equal to 1/10 of liter. A liter is a little bigger than quart of a fluid.

Given 1drop of medicine =1.77 ml

So, 100drops=177 ml

As, 1ml=0.01 dl

Hence, 177 ml=1.77 deciliter.

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Ionic compounds form through the transfer of electrons between atoms. In order for an ionic compound to form, one atom must give up one or more of its valence electrons, while another atom must gain one or more electrons to fill its valence shell.

Ionic compounds are formed when one atom loses one or more electrons and another atom gains the same number of electrons. The atom that loses electrons is called a cation, and the atom that gains electrons is called an anion.

The cation and anion are attracted to each other by the electrostatic force of attraction between opposite charges, resulting in the formation of a stable compound.

Ionic compounds can be formed by both metals and nonmetals, but typically occur between a metal and a nonmetal. Metals tend to lose electrons easily and form cations, while nonmetals tend to gain electrons easily and form anions. The electron transfer process is driven by the desire of both atoms to fill their valence shells and achieve a stable electron configuration.

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The number of moles in 44 g of CO₂ is one mole. Number of moles of 98 g of O₂ is 3 moles. Similarly the number of moles in 12 g of MgCl₂ is 0.12.

Any substance that contains 6.02 × 10²³ atoms or molecules is called one mole of that substance. This number is called Avogadro number. One mole of every element contains Avogadro number of atoms.

The mass of one mole of a compound is called its molar mass. We can determine the number of moles in a given mass of the compound by dividing the mass by molar mass.

no.of moles = given mass/molar mass.

Molar mass of CO₂ = 44 g

hence 44 g of is one mole.

Molecular mass of O₂ = 32 g

moles in 98 g = 98/32 = 3 moles.

Molar mass of   MgCl₂ = 95 g/mol

moles in 12 g = 12 /95 = 0.12 moles.

In the similar way, the number of moles of all compounds for the given mass can be calculates.

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Isopropyl group is  a large doublet and a small septet pattern in 1h nmr is usually indicative of a(n)

In organic chemistry, an isopropyl group is a functional group composed of a propane molecule with the middle carbon atom replaced by a hydroxy group (-OH). The chemical formula "-C(CH3)3" or "-(CH3)2CH-" is commonly used to represent it. Isopropyl groups can be found in a wide range of compounds, such as alcohols, esters, and ethers. Isopropyl alcohol, also known as isopropanol, rubbing alcohol, or IPA, is a type of organic compound classified as a secondary alcohol. Secondary alcohols are compounds that contain a secondary alcohol functional group and have the general formula HOC(R)(R') (R, R'=alkyl, aryl).

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The atomic number of bromine is 35. Thus the total number of electrons is 35. The number of core electrons is 28.

Bromine is 35th element in periodic table. It is a nonmetal and is placed in the 17th group called halogen group. Bromine relatively electronegative in nature and form ionic compounds.

The atomic number of an atom is the number of its total electrons in the neutral state. The electrons which are occupied in the higher energy levels that is in the outer orbitals far from the nucleus is called valence electrons. All other electrons are called inner electrons or core electrons.

Bromine contains total 35 electrons. Out of which 7 are valence electrons. Thus, the number of core electrons in the ground state of bromine is 35 -7 = 28 electrons.

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In the last we can say that when phenol is oxidised to sodium dichromate in acidified solution, it will form benzoquinone.

Primary alcohols can be oxidised into either aldehydes or carboxylic acids depending on the reagent. While PCC with CH2Cl2 stops at the aldehyde, Jones reagent (CrO3 with H3O+) and Na2Cr2O7 with H2SO4 oxidise primary alcohols all the way to carboxylic acids.

Alcohols in the tertiary stage won't oxidise. In addition to CrO3, sodium dichromate and potassium permanganate (KMnO4) are other frequently utilised oxidising agents (Na2Cr2O7). Any of these chemicals can be used to oxidise primary alcohols to produce carboxylic acids and secondary alcohols to produce ketones.

Every time an oxidation or reduction reaction takes place, a corresponding reduction reaction must also occur. In a reaction, a molecule must also be being reduced in order for an alcohol to be oxidised.

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the name given to the The study of how fast reactions take place is called chemical kinetics.

chemical kinetics is the branch of chemistry that deals with the rate of chemical reactions, including how the rate is affected by various factors such as temperature, concentration, and the presence of catalysts. It also includes the study of the mechanisms of reactions, which are the sequence of elementary steps that a chemical reaction goes through to occur.Activation energy is a term used in chemical kinetics to refer to the energy required to initiate a chemical reaction. Reaction rate is the term used to describe how fast a reaction occurs and can be measured in units of concentration per unit of time.

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The overall reaction order is simply the sum of orders for each reactant. For the example rate law here, the reaction is third order overall (1 + 2 = 3).

The concentrations of reactants frequently influence a reaction's rate, as was discussed in the preceding lesson. The link between the rate of a chemical reaction and the concentration of its reactants is expressed mathematically by rate laws, often known as differential rate laws or rate equations. Take the chemical equation's description of the reaction as an example.

aA+bB⟶products

rate is equal to k[A]m[B]n, where [A] and [B] are the reactant molar concentrations and k is the reaction's rate constant, which varies depending on the reaction's temperature. The reaction orders' exponents, m and n, are normally positive integers, however they can also be fractions.

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Oxygen is in group 6 and has 6 valence electrons.

What is meant by electrons?

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[BrCl4]–

of the following species contain a C4 axis and a σh plane.

Ammonia is a member of the symmetry group C3v, which is distinguished by a three-fold axis and three vertical symmetry planes. Figure 11.1 shows the ammonia molecule from two angles. Thus, all six combinations of the three hydrogen atoms have been considered.

The major C6 axis of benzoene encompasses the S6 and S3 axes. Six C2 axes run parallel to the C6 axis. A h, three v, three d, and an inversion center are present. Benzene belongs to the D6h point group as a result.

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The optimal behavior of SF6 is achieved at a higher boiling point of 150C.

Temperature is a unit used to represent how hot or cold something is. It can be stated using the Celsius or Fahrenheit scales, among others. Temperature shows which way heat energy will naturally flow, i.e., from a hotter (body with a higher temperature) to a colder (body with a lower temperature) (one at a lower temperature).

Instead of using the written word to indicate temperature measurements, the ° symbol is typically used instead, with a space coming after the number but not before the temperature scale: To achieve 80 °C, the sample was heated.

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Answer:

Using the dilution equation, we can solve for the initial volume required. We need 18.75 mL of 2.0 M NaCl solution.

Explanation:

Answer:

The discharge from factories mixes with various water bodies. The chemical discharges add unwanted and harmful substances into the water. This causes water pollution. Some of the chemicals that are mixed in water are lead, fluorides, carbon monoxide etc. These chemicals are harmful for aquatic plants and animals.Sometimes, the chemicals released also help in algae blooming which takes up a lot of oxygen from water. Lack of oxygen can kill aquatic organisms as well. Therefore, increased levels of chemicals in water is unhealthy for aquatic life.

Answer:

Because algae and many species of plants take on dissolved oxygen, rising nutrient levels in water have an impact on aquatic animal life. Chemicals are carried away from fields and end up in bodies of water including ponds, rivers, and the sea. These provide nutrients for algae to grow.

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Why does the increased level of nutrients in the water affect the survival of aquatic organisms? - Byju's

it's me bro ( ;

In terms of binding energy per nucleon,  Fe element divides fission and fusion processes.

The complete question is,
In terms of binding energy per nucleon, what element divides fission and fusion processes?

A) H

B) He

C) C

D) Fe

E) U

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Answer:

This is true

Explanation:

The energy that an object has stored due to its position is known as potential energy. Kinetic energy is the energy that a moving thing has as a result of its motion.

The energy that a body has as a result of its position or state is known as potential energy. Potential energy is fully independent of its environment, as contrast to kinetic energy, which is relative to the state of other things in its environment. So a car parked on a hill merely demonstrates potential energy, whereas a car moving at 60 mph demonstrates kinetic energy. As it descends from a certain height at a specific speed, a rock exhibits both potential energy and kinetic energy. A tank of compressed air demonstrates potential energy. Chemical energy is therefore seen as a type of potential energy because it is stored in chemical bonds.

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The enthalpy of vaporization of the unknown liquid is -31.9 kJ/mol.

We know that vaporization is the process that occur when there is a change from liquid to gas of a material at the boiling point of the substance . We must also note that the boiling point of the substance is the atmospheric temperature which is 1 atm.

Thus;

lnP  = -ΔHvap/R  * 1/T

We know that;

P = atmospheric pressure

R = gas constant

T = temperature

Hence;

ln(1) = -ΔHvap/8.314 * 1/ -3840

 -3840  * 8.314 = -ΔHvap

= -31.9 kJ/mol

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The empirical formula of a compound can be determined by analyzing the mass percentages of its various elements and expressing them as the smallest whole number ratio. To find the empirical formula of lysine, we first need to determine the number of moles of each element present in 1.50 g of lysine. We can then use these values to calculate the mole ratios of the elements, which will be the same as the ratio of the subscripts in the empirical formula.

By knowing the mass of produced CO2 and H2O we can calculate how many moles of C and H are present in 1.50 g of lysine

mass of C = 2.72 g CO2 x (1 mol CO2 / 44.01 g CO2) = 0.062 moles

moles of H = 1.29 g H2O x (2 moles H / 18.02 g H2O) = 0.072 moles

Then, by knowing that lysine also produced 0.287 g of N. We can calculate the number of moles of N

moles of N = 0.287 g N x (1 mole N / 28.02 g N) = 0.0102 moles

We can now find the ratio of the elements by dividing each by the smallest number of moles which is 0.0102 moles.

C:H:N = 0.062 moles / 0.0102 moles = 6:1:1

So the empirical formula of lysine is C6H14N2

a) KSO4 charge on SO4-2 - Potassium sulfite

b) NaClO4 charge on ClO4 - Sodium perchlorate

c) LiPO3 charge on PO4-3 - Lithium phosphate

d) MgClO charge on ClO- - Magnesium hypochlorite

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Methyl alcohol boils at 84 %H, the boiling point of methyl alcohol on the Jekyll scale is -188 %H.

The Jekyll scale is a temperature scale used to express the boiling points of liquids in terms of the percentage of sulfuric acid required to lower the boiling point of the liquid to that of water.

To convert from the boiling point in degrees Celsius to the Jekyll scale, we use the following formula:

= %H

= (100 - 4.6 * (boiling point in °C - 20))

So to convert 84 °C to the Jekyll scale, we can substitute into the above formula:

= %H

= (100 - 4.6 * (84 - 20))

= (100 - 4.6 * 64)

= (100 - 288)

= -188%H

So, the boiling point of methyl alcohol on the Jekyll scale is -188 %H.

It's worth noting that the Jekyll scale is rarely used today, and it's mostly used in historical context.

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What is the market price of iron in ore? This question cannot be addressed using the concept of chemical composition.

Chemical composition refers to the identification of the chemical substances and the proportion of each that make up a specific sample. It can refer to the types and amounts of elements present in a substance, such as the chemical compounds present in a sample of soil or the elements present in a mineral. It can also refer to the specific arrangement of atoms within a molecule, such as the chemical structure of a compound in a pen ink. The chemical composition of a substance can be determined through various analytical techniques such as spectroscopy, chromatography and mass spectrometry. Understanding the chemical composition of a substance is important in many fields, such as chemistry, geology, medicine, and materials science, as it can provide information about the properties, reactivity, and potential uses of the substance.

What is the price of iron in the market? This question cannot be addressed using the concept of chemical composition as it deals with economic aspect of iron ore and not its chemical composition.

How many grams of sodium are consumed by a person in a day? This question deals with the amount of a specific element, sodium, consumed by a person in a day, which can be addressed using the concept of chemical composition as it deals with the amount of a specific element in a sample.

How much hydrogen can be extracted from water for energy? This question deals with the amount of a specific element, hydrogen, that can be extracted from a compound, water, which can be addressed using the concept of chemical composition as it deals with the amount of a specific element in a sample.

What is the amount of chlorine in the chlorofluorocarbon freon-12 that is found in an air conditioner? This question deals with the amount of a specific element, chlorine, in a compound, chlorofluorocarbon freon-12, which can be addressed using the concept of chemical composition as it deals with the amount of a specific element in a sample.

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Answer: .39 Moles would be needed.

Explanation: The mole-to-mole ratio of Copper (ll) chloride to Al is 3/2. We can tell by looking at the coefficients of the reactants. Al has a coefficient of 2 and CuCl2 has a coefficient of 3. The ratio of CuCl2 to Al is 3:2 or 3/2. We multiply this ratio by the number of moles of Al which .26 to find how much we need of CuCl2. Now figure out how many moles of AlCl3 you would produce from .26 moles of Al.

The amount of sodium+ in each of these solutions is the same (aq), with the maximum molar concentration of Na+ occurring in the aqueous solutions.

supposing that every substance in the water has completely dissolved The quantity of a solute present in a solution expressed as a molar concentration. These are the units: mol/L, mol/dm 3, or mol/m 3. The unit M, or molar, can be used to denote molar concentration, also referred to as molarity. The Latin name for sodium is natrium, and it has the chemical elemental number 11 and the symbol Na. It is an extremely reactive, delicate, silvery-white metal. The periodic table's group 1 designates sodium as an alkali metal. Na is its sole stable isotope. Natural occurrences of the free metal don't exist.

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