write the net ionic equation for the reaction that occurs when 0.087 mol hcl is added to 1.00 l of the buffer solution. use h3o instead of h .

All the three phases (solid, liquid, gas) of matter make up the atmosphere.

Phases are also known as state - states of matter or phases of matter. There are generally three states of matter - Solid, liquid, and gases.

             Among all three gases have the lowest density as they have the weakest intermolecular forces. If gases are put in a container, then they fill up the entire volume of the container. In gases, the molecules are constantly moving and getting replaced by other gas particles.

      In contrast to gases, the liquids have relatively higher intermolecular forces and are relatively dense and incompressible. In liquid we can determine the viscosity that is - the rate at which they flow.

      Solids are relatively dense, rigid and have highest intermolecular force unlike liquids and solid. In solids, the molecules are compactly packed, hence preventing the molecules from moving from its place.

Complete question: -

Matter can be broadly described as a solid, liquid, or gas. (There are more exotic states, including plasma, but we will ignore them for now.) In which phase of matter is the material that makes up the atmosphere? A. solid B. liquid C. gas D. All of these

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Answer:

2Li3PO4(aq) + 3Ca(C2H3O2)2(aq)

- - - > Ca2(PO4)2(s) + 6LiC2H3O2(aq)

Answer:

About 0.965 mol Na

Explanation:

The wavelength of a radio wave having a frequency is 0.8m.

Radio waves are the longest waves in the electromagnetic spectrum. These waves are a form of electromagnetic radiation with frequencies ranging from 300 GHz to 3 kHz, but above 3 GHz are defined as microwaves. Wave frequency is the number of waves passing through a fixed point in a given time.

calculation:-

frequency = 3.75 x 10^7 Hz?

f = wavelength / speed of light

wavelength = c/f

= 3 × 10^8 / 3.75 x 10^7 Hz

= 0.8 m.

Frequency is the rate at which the current changes direction per second. It is measured in hertz an international unit of measurement where one hertz equals one cycle per second. To calculate the frequency of a wave, divide the velocity of the wave by the wavelength. Write your answer in Hertz or Hz which is the unit for frequency. If you need to calculate the frequency from the time it takes to complete a wave cycle or T the frequency will be the inverse of the time or 1 divided by T.

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Ductility is the physical property of matter which indicates ability to be stretched into a wire without breaking.

Due to its physical attribute of ductility, metal will stretch as opposed to breaking when pulled. In other words, a material's ductile qualities are its capacity to experience significant plastic deformation under tensile stress prior to rapture. Nickel, copper, steel, and other ductile materials are examples.

Brittleness is the property of metals that accounts for their breaking under tensile stress without producing stretch. Another name for it is abrupt failure. Glass, iron, and other fragile materials are examples.

The ability of a material to absorb mechanical overload is determined by its ductility, which is a crucial factor in engineering and manufacturing.

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The polarity equation is given, masks are divided by smaller mosques, and all are divided by the volume of solution in liters.

As a result, we will obtain a number closer to 1.49. Thus, the original solution's polarity is as follows.

The amount of a substance in a specific volume of solution is known as its molarity (M). The number of moles of a solute per liter of a solution is known as molarity. Molarity is defined as the number of moles of solute per liter of solution.

The moles of solute per liter of solution is measured as molarity. For instance, when table salt is dissolved in water, water serves as both the solution and the solute. Sodium chloride weights 58.44 grams per mole. One liter of water and 58.44 grams of sodium chloride combine to form one molar solution, or 1M.

100 g of a solution Additionally, it is assumed that the starting density is 1.02 grandpa. We can therefore determine the volume or solution from this information. Volume of the solution is therefore equal to the solution's mass divided by its city. So we have 100 g of solutions here. Therefore, 100 g make up the majority of the solution. Divided by the solution's density, 1.02 grandpa is obtained. The result will be 98.04 cm. The volume motor solution is now available. Next, we may determine the initial solution's polarity. As a result, we have the polarity equation, which is provided as smaller mosque divided by masks.

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the mole percent of oxygen be in the diving gas for the partial pressure of oxygen in the mixture to be 0.21 atm , the same as in air at 1 atm is 2.52%

Atm 8.32 is the total pressure.

0.21 atm is the partial pressure of oxygen gas.

The relationship between partial pressure, total pressure, and mole fraction is depicted here.

partial oxygen pressure Total pressure x Mole percent of oxygen -

Calculate the gas's mole fraction of oxygen.

0.21 atm 8.32 x Mole fraction

Mole fraction = 0.21/8.32 = 0.0252

As illustrated below, determine the mole percent of the gas. Mole percent is equal to the mole fraction divided by 100, which is 0.0252 times 100 and 2.52% respectively.

As a result, oxygen's mole percent is 2.52%.

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Answer:

25

E

12

Explanation:

As shown in the pic

Mass number = 12 + 13 = 25

Atomic number = No of protons = 12

Fermentation products can include commonly known compounds such as lactic acid and ethanol, but many other products like butanol, acetic acid, and succinic acid are also possible because, these products arise to complete catabolism of glucose and regenerate NAD+ from NADH.

What is Fermentation?

It is an anaerobic process in which energy can be released from glucose even if oxygen is not available.”

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11.10 moles of cacl2 are required

Lets 0.24000000000000002m approx. be 0.2m

so, Molarity = 0.2m

volume = 500 ml

we know that

molarity = no. of moles of solute (cacl2) / volume of solutions

0.2m = n / 0.5 L

n = 0.1 moles of cacl2

now,

1 mole of cacl2 = 110.98 gm

so,

o.1 moles of cacl2 = 11.10 gm

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The substance with the highest specific heat value will have the highest increase in temperature.

What is a chemical reaction ?

Chemical reaction, the process by which one or more substances (reactants) are transformed into one or more other substances (products). Substances are either chemical elements or compounds. Chemical reactions rearrange the constituent atoms of reactants to produce different substances as products.

Chemical reactions are  part of technology, culture, life . Fuel combustion, glass and pottery making, beer , and wine and cheese making are few examples. Activities involving chemical reactions that have been around for thousands of years. Chemical reactions are abundant in a variety of complex processes occurring in the Earth's geology, atmosphere and oceans, and in all biological systems.

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This is related to how polar each water molecule is.

Each water (H2O) molecule has an electric charge on its side of hydrogen, which is slightly positive, and on its side of oxygen, which is slightly negative. It facilitates the separation of ionic compounds into their positive and negative ions in water.

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By halogenating an alkane, it is feasible to produce high yields of 1-chloro-2,2-dimethylpropane. Therefore, following radical halogenation of the parent alkane, only one monohalo isomer is feasible.

A double-branched chain alkane containing five carbon atoms, neopentane is also known as 2,2-dimethylpropane. Neopentane is a flammable gas at ambient pressure that, on a chilly day, in an ice bath, or when compressed to a higher pressure, can condense into a highly volatile liquid known as dimethylpropane. In organic chemistry, an alkane is an acyclic saturated hydrocarbon, sometimes known as paraffin (a historical quaint word that also has various meanings). In other terms, an alkane is made up of carbon and hydrogen atoms that are all grouped in a tree form.

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Explanation:

enzymes are biological catalysts that increase the rate of reaction without being used up in the reaction process.

this is done by providing an alternative route to the reaction progress that'll require a lower activation energy.

example - digestive enzyme Amylase, is used to breakdown sugars into glucose for cellular respiration.

hope it helps. :)

My prediction on the conspicuous changes which occurs simultaneously during flooding activities is that it decreases the oxygen levels which are available to habitat and even destroy the community.

The oxygen levels are affected whenever flooding activities occur in a given habitat when its activities damage the community by way of sedimentation.

So therefore, we can now confirm from the explanation above that when flooding occurs to a given habitat of organisms, it reduces the quality of water levels which directly affect the oxygen levels too.

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Answer: The concentrations of the products and

reactants are equal.

Explanation:

Potassium chloride can be defined as a metal halide salt composed of potassium and chlorine. It is odorless and has a white or colorless.

To prepare Potassium Chloride from Potassium Chloride Solution.

1. KCl can be analyzed by reacting bases of potassium (such as potassium hydroxide) with hydrochloric acid. This ensures acid-base neutralization reaction will yield water and potassium chloride as the products.

KCL + HCL = KCL + H2O

2. Boiling the solution can help in removing the water until a super-saturated solution is obtained and then cooling the super saturated solution at room temperature and introducing a seed crystal of Potassium chloride, crystals of Potassium chloride are obtained.

This is how , pure crystals of potassium chloride from potassium chloride solution

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The molarity of the K₂CO₃ solution is 2.36 M.

The unit of molarity is molar or M is the same as moles per liter, when n moles of a compound appear that have been dissolved in V liters of solution, the molarity formula is [tex]M = n/V[/tex]

M = molarity

n = number of moles

V = volume of solution

The concentration of the solution states the quantitative composition of the substance that has been dissolved and the solvent in the solution. Determination of the concentration or vice versa depends on the number of solution ratios of each substance that enters. Chemical reactions occur during the process and result from the presence of the same solution.

So, the molarity of the K₂CO₃ solution is:

[tex]M =6.63/2.8[/tex]

[tex]=2.36[/tex] M

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The wavelength of the photon required to excite this molecule from its ground state, to its first excited state is 1240 nm.

This is given by the equation:

wavelength = hc/(E_homo - E_lumo)

where h is Planck's constant =6.626070 * 10^-34 J.m , c is the speed of light = 3.0 x 10^8 m/s^2, and E_homo and E_lumo are the energies of the highest occupied molecular orbital and the lowest unoccupied molecular orbital, respectively.

In this particular case, the wavelength of the required photon would be:

wavelength = hc/(-2.42 hartree - 0.65 hartree)

= 6.626070 * 10^-34 X 3.0 x 10^8 / (-3.07)

= 1240 nm

Hence , The wavelength of the photon required to excite this molecule from its ground state, to its first excited state is 1240 nm.

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Answer: The s-cis conformer of 1,3-butadiene is less stable than the s-trans conformer as in the s-cis conformer both the CH2 C H 2 groups are facing in the same direction resulting in a sterically crowded structure that leads to repulsion between the hydrogen atoms attached to C1 and C4

Explanation:

Answer:

I presume you are talking about Nitric Oxide so the molar mass of NO is 30g/mol 30 g / m o l.

Then you should substitute the respective values from the formula above.

Doing that the mass of NO formed is 4.413 g or just 4.4 grams.

This is an example of positive feedback regulation.

A change in a particular direction causes an additional change in the same direction. For example, if the concentration of a substance increases, a feedback of continuously increasing concentration will occur.

A positive feedback loop occurs in nature when a product of a reaction leads to an increase in that reaction. Considering a system in homeostasis, a positive feedback loop pushes the system away from the goal of equilibrium.

Example of Positive Feedback Loops

The feedback loop possess two major forms: (1) positive feedback and (2) negative feedback. They work simultaneously to maintain body equilibrium under different conditions.

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Answer:

N2O3= Dinitride Trioxide

CO= Carbon Oxide

SO3= Sulfide Trioxide

Explanation:

Di= 2

Tri= 3

The ions are present in cations and anions.

The cathode Positively charged cations.

The anode is negative ions.

The oxidation occurs is Zn(s) = Zn2+ (aq) + (2e-).

A redox reaction combines two half-reactions into one complete formula. Electrons lost in the oxidation half-reaction are gained in the reduction half-reaction. Thus, a redox reaction is a chemical reaction in which electrons are transferred between the two species.

A substance that is reduced in a chemical reaction is called an oxidizing agent and a substance that is oxidized is called a reducing agent. Example of the redox reaction of zinc and copper. A reaction is complete when it reaches equilibrium, that is when the concentrations of reactants and products stop changing. If the equilibrium constant is very large.

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There is 12.4g of silver chromate.

Almost all alkali metal compounds and nitrates are soluble, but most silver compounds are not. Therefore, when the soluble salts silver nitrate and sodium chromate are mixed, insoluble silver chromate is formed and precipitated. This method involves titrating the chloride ion concentration in a solution with silver nitrate. A silver chloride precipitate forms when the silver nitrate solution is slowly added.

The endpoint of the titration is when all chloride ions have precipitated. Silver chromate precipitates as a brick-red precipitate from aqueous solutions. This reaction is also called a precipitation reaction. A precipitate is an insoluble solid that forms when solutions are mixed. For precipitation titrations with silver nitrate, a suitable indicator indicates the end point of the titration by a color change when there is excess Ag+ in the solution.

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The type of quantitative chemical method was used to determine the precise concentration of hydroxide in the experiment is titration.

Titration is quantitative chemical method used to determine the concentration of unknown solution by using the known concentration of solution. the solution with the known concentration is called as the titrant. the solution of the unknown concentration is called as analyte. titrant is added from burette to known quantity of solution of unknown concentration that is analyte until the reaction is complete.

Thus, The type of quantitative chemical method was used to determine the precise concentration of hydroxide in the experiment is titration.

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The  5  major parts of the long bone are :

.The  Proximal epiphysis

. The distal ephiphysis

.The compact bone

.The Diphysis

.The metaphysis.

What are long bones?

They are long, wide, and cylindrical in shape. They act as levers. e.gFemur, tibia, fibula, metatarsals, humerus, ulna, radius, metacarpals, and phalanges.

The five major parts of a long bone

.The  Proximal epiphysis: This is made up of the spongy bone and articular cartilage.

.The distal epiphysis: This is enclosed by a membrane of connective tissue called the periosteum.

.The metaphysis: This is made up of an epiphyseal line and red bone marrow.

.The Diphysis: This is found in the medullary cavity which has an inner core of bone marrow. It contains nutrients and helps in the formation of cells, made up of yellow marrow in the adult and red marrow in the child.

.The compact bone: This is the outer shell of the long bone is made of cortical bone called compact bone.

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In a chemical reaction, 0. 3 moles of H2O result in the production of 0.2 moles of CO2. Chemical reactions are the means through which one group of chemical compounds are changed into another.

Chemical reactions are typically defined as changes that only affect the positions of electrons in the formation and breakage of chemical bonds between atoms, with no change to the nuclei (i.e., no change to the elements present). These types of changes are often included in the term chemical reactions.

Number of moles Definition We utilize this enormous quantity to measure atoms. Additionally, it equals the 6.022* 10 23 atoms that make up 12 grammes of carbon-12, or atoms.

C2H6 + 7/2O2 = 2CO2 + 3H2O,

where moles(CO2)=(2*0,3)/3=0.2 mol,

and n(CO2)=(2*0,3)/3=n(H2O);

n(CO2)=n(CO2)=n(H2O).

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In phosphorous pentachloride, also known as pcl5, the central p atom's hybrid orbital, designated Sp3d, forms a sigma bond with an exterior cl atom. The P molecule hybridization is indicated by the symbol sp3d.

To create 5 P-Cl sigma bond in this situation, the P atom needs 5 orbitals. It needs to create the fifth sigma bond using one of its three 3d orbitals because it has three 3s and two 3p orbitals. These orbitals are combined to create five sp3d orbitals, making a triangular bipyramid. The process was referred to as hybridization, and it was characterized as the redistribution of the energy in the individual atoms' orbitals to create new orbitals with equivalent energy. The new orbitals are created and given the term hybrid orbitals. Is known as hybridization.

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The equilibrium concentration of ICl is 17.97M

Equilibrium concentration is when both reactant and product are in concentration which does not change with time any more

Here given data is

Volume =  2.00L

Number of moles of ICl = 0.440 moles

Kc = 0.110

Balanced chemical equation

2ICl ⇄ I₂ + Cl₂

We have to calculate equilibrium concentration of icl = ?

Calculations for initial concentration

ICl =  0.440 moles/ 2.00L = 0.22M

I₂ = 0M

Cl₂ = 0M

Concentration of equilibrium

ICl = (0.22M - 2x)M

I₂ = xM

Cl₂ = xM

Calculation for Kc

Kc = 0.110 = [I₂][Cl₂]/[ICl]

0.110 = x²/ (0.22M-2x)²

0.332 = x(0.22M-2x)

x = 0.332×(0.22M-2x)

x = 0.0730 - 0.664x

0.664x = 0.0730

x = 0.664/0.0730

x = 9.095

The equilibrium concentration will

[I₂] = [Cl₂] = 9.095M

[ICl] =  0.22M - 2(9.095)

[ICl] = 17.97M

Equilibrium concentration of ICl is 17.97M

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