What are some other things that have been engineered to help people deal with the effects of gravity?​

The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

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Answer:

D

Explanation:

The ratio of C6H12O6 (which will be referred to as "the carb") to oxygen is 1 to 6, so if we find an answer which has the same ratio, it should be chosen. A is 1:3
B is even worse with a ratio of the carb to oxygen of 1:2
C is the same as B, 1:2
D has a ratio of the carb to oxygen of 1:6, which is what we are looking for.

The number of moles of CO2 produced is 0.021 moles

If the estimated volume of the balloon is wrong then the amount of glucose reacted must be more than is stated.

The respiration equation represents the chemical process of aerobic cellular respiration, which occurs in the mitochondria of cells and is the primary way in which cells generate energy in the form of ATP (adenosine triphosphate).

The equation of the reaction is;

C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP

We know that;

Number of moles of glucose = 10 g/180 g/mol

= 0.056 moles

PV = nRT

n = PV/RT

n = 1 * 0.55/318 * 0.082

n = 0.021

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Answer:

See explanation

Explanation:

The compound is acetylacetone. This compound is immiscible with water because it is completely nonpolar.

However the introduction of ammonia, leads to the ionization of the specie. In the presence of a base(such as NH3), the molecule acetylacetone is deprotonated and its corresponding anion is formed. This anion can now interact with water and become miscible with it.

The concentration of H₂SO₃ solution is equal to 0.123 M.

A neutralization reaction is described as a reaction in which an acid and base react to form salt and water. When a strong acid will react with a base then the salt which is formed can be neither acidic nor basic.

When H₂SO₃ (a strong acid) reacts with KOH, the resulting salt is K₂SO₃  and water.

H₂SO₃  +  2KOH   →   K₂SO₃  +   2H₂O

Given, the concentration of KOH = 0.235 M

The volume of the KOH = 65.25 ml = 0.06525 L

The number of moles of KOH, n = M × V = 0.235 × 0.06525 = 0.0153 M

The volume of the  H₂SO₃ = 62.4 ml = 0.0624 L

The number of moles of  H₂SO₃, n = 0.0153/2 = 0.00767 mol

The concentration of H₂SO₃ =0.00767/0.0624 = 0.123 M

Therefore, the molarity of  H₂SO₃ is 0.123 M.

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According to Newton's Third Law of Motion, The force the child applies on the boat same force that is applied to the child.

The third regulation states that for every movement (force) in nature there is the same and contrary reaction. If item A exerts a force on object B, object B also exerts an identical and contrary force on item A. In different phrases, forces result from interactions.

The swimmer whilst swimming pushes in opposition to the pool wall along with his feet and in return hurries up (swims) inside the course contrary to that of his push. Newton's third law of motion states that for each movement, there may be the same and contrary reaction.

The third law states that for each motion (pressure) in nature there is a same and contrary reaction. If object A exerts pressure on item B, object B also exerts an identical and contrary pressure on object A.

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Answer:  A from the burial and decomposition of plant material.

Explanation:

Answer:

I am almost done

Explanation:

21.0 L

↓

2H₂(g) + O₂(g) → 2H₂O(l)

↑

4.67 × 10²⁴ moles

[This is done so the equation is balanced and the reaction can occur]

[subscripts are the number of atoms, and the coefficients are the number of molecules]

______________

Since there are about 6.02 × 10²³ moles in one mol of a substance.

4.67 × 10²⁴ / 6.02 × 10²³ =

7.7547174437 mol.

Next, we must determine the grams per mole of each substance, this can be done with the periodic table.

Since hydrogen, and oxygen gas are diatomic, they will consist of two atoms each. So the atomic mass will be multiplied by 2 to get the molecular mass. Therefore H₂ will have a molecular mass of 1.00794 × 2 = 2.01588 g/mol.

Answer:

“You Asked” is a series where Earth Institute experts tackle reader questions on science and sustainability. Over the past few years, we’ve received a lot of questions about carbon dioxide — how it traps heat, how it can have such a big effect if it only makes up a tiny percentage of the atmosphere, and more. With the help of Jason Smerdon, a climate scientist at Columbia University’s Lamont-Doherty Earth Observatory, we answer several of those questions here.

Answer:

gas X

Explanation:

The median reaction at the second end point in the HCl and NaOH titration is: HCl + NaOH → NaCl + H2O

In a titration between hydrochloric acid (HCl) and sodium hydroxide (NaOH), the reaction involved is the neutralization reaction between an acid and a base. The balanced equation for this reaction is:

HCl + NaOH → NaCl + H2O

In this reaction, one mole of HCl reacts with one mole of NaOH to form one mole of NaCl (sodium chloride) and one mole of water.

During the titration process, the reaction occurs gradually as the base is added to the acid solution.

The first end point of the titration is reached when the moles of HCl and NaOH are stoichiometrically equivalent, meaning they react in a 1:1 ratio. At this point, all the HCl has been neutralized by the NaOH, and no excess of either reagent remains.

However, if the titration is continued beyond the first end point, the reaction between HCl and NaOH can still occur, albeit in a different ratio.

The second end point refers to the point where the moles of NaOH added exceed the stoichiometrically required amount to neutralize the HCl completely. As a result, any excess NaOH added after the second end point reacts with the excess HCl in a 1:1 ratio.

Therefore, the median reaction at the second end point in the HCl and NaOH titration is:

HCl + NaOH → NaCl + H2O

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Answer: \(5.15\times 10^5kg\)

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number of particles.

To calculate the number of moles, we use the equation:

Putting in the values we get:

\(\text{Number of moles}=\frac{1.00\times 10^{31}}{6.023\times 10^{23}}=0.166\times 10^{8}moles\)

1 mole of phosphorous \(P\) weighs = 31 g

Thus \(0.166\times 10^8\) moles of phosphorous \(P\) weigh=\(\frac{31}{1}\times 0.166\times 10^8=5.15\times 10^8g=5.15\times 10^5kg\)

7 moles of Cr

Given that there is 1 mole of he compound Cr7(PO4)3, the 1 mole of the compound is composed of 12moles of oxygen, 3 moles of phosphorous and 7 moles of chromium.

Hence we can conclude that there will be 7 moles of Cr in 1 mole of Cr7(PO4)3

Answer:

\(CH_2Cl_2\)

Explanation:

In this case, we must analyze the structure for each molecule. In the case of , we have a bond with a chlorine atom. Chlorine has a high electronegativity, therefore the C-Cl bond has a relatively large dipole moment since we have a high electronegativity difference.

In the molecule, we have two bonds of this type, therefore we will have two high dipole moments. Thus, the net dipole moment for this second molecule should be higher.

This statement can be confirmed if we look at the dielectric constant, this value is an indicator of the polarity of a molecule. If we have a high dielectric constant there will be more polarity and therefore a higher net dipole moment.

See figure 1 to further explanations

I hope it helps!

ANSWER

The redox reaction in the cell is non spontaneous and requires energy to occur.

option A

EXPLANATION

Electrolytic cell is an electrochemical cell that requires an external source of electrical energy to drive a chemical reaction.

The oxidation-reduction reaction in electrolytic cell would not occur spontaneously, so, there is a need for an external source (electrical energy) to cause the reaction to occur

Therefore, the redox reaction in the cell is non spontaneous and requires energy to occur.

The correct answer is option A

To ensure insurance coverage for Percocet, it is essential to verify the patient's insurance coverage and check if prior authorization is required. If prior authorization is necessary, gather the required information, complete the authorization form, and submit it to the insurance company.

When a patient presents a prescription for a medication like Percocet, which requires prior authorization from the insurance company, several steps should be taken:

Verify Insurance Coverage: Check the patient's insurance coverage and confirm if prior authorization is required for Percocet. This can be done by contacting the insurance company or using an online portal provided by the insurer.

Review Prior Authorization Criteria: Understand the specific requirements set by the insurance company for obtaining prior authorization for Percocet. This may include documentation, medical history, and supporting evidence to justify the need for the medication.

Gather Patient Information: Collect relevant patient information, including medical records, diagnosis, and any previous treatments. This information will be used to support the prior authorization request.

Complete Prior Authorization Form: Fill out the necessary prior authorization form provided by the insurance company. Ensure that all required information is accurately entered, including the patient's details, prescriber information, and supporting documentation.

Submit the Request: Send the completed prior authorization form along with any supporting documents to the insurance company. This can be done electronically through their designated channels or by fax/mail, following their specified process.

Follow Up: Monitor the progress of the prior authorization request. Follow up with the insurance company to confirm receipt, inquire about any additional information needed, and track the status of the request.

Inform the Patient: Keep the patient informed about the prior authorization process, estimated timelines, and any potential out-of-pocket costs they may incur.

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Answer:

uifhiuwrhuio fw

Explanation:

hfuiwehgu34iht3uht34[pht349348ut0tg

Answer:

Hello! so this is what I was able to find related to your question.

Explanation:

The oxidation number of this molecule, called a bromate molecule, is    -1.  It should be correctly written BrO3-.  It has this net charge of negative 1 because the bromine has an oxidation number of +5, while oxygen has it's normal oxidation of -2.

The mass of 2.40 × 10²³ molecules of anonymous substance with molar mass of 18.02g/mol is 7.18grams.

The mass of a substance can be calculated by multiplying the number of moles in the substance by its molar mass as follows:

mass = no of moles × molar mass

First, we convert the number of molecules in the anonymous substance to moles as follows:

2.40 × 10²³ ÷ 6.02 × 10²³ = 0.39moles

mass of anonymous substance = 0.39 moles × 18.02g/mol = 7.18grams

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Answer:

D. It is extremely reactive.​

Explanation:

Hello!

In this case, since potassium is an alkali metal, it is known those are extremely reactive because the energy required to ionize them is very low, it means they react so easily. For instance, even in the presence of water, potassium is able to react and form a purple flame as a product of the reaction:

\(2K+2H_2O\rightarrow 2KOH+H_2\)

As well as potassium, the rest of the elements belonging to the alkali metals series are extremely reactive; therefore the answer is D. It is extremely reactive.​

Best regards!

Answer:

Thx

Explanation:

When setting up your experiment, sodium hydroxide is added to the buret and acetic acid is pipetted into the Erlenmeyer flask. one to two drops of phenolphthalein are added to the Erlenmeyer flask along with additional water to bring the total volume to 50 ml before beginning the titration.

Steps for conducting titration.

First of all pipette and burette should be rinsed 3 times with distilled water and then 3 times with the solution they will measure and transfer. Then after add suitable amount of indicator. This procedures should be consistent across all titrations; 3 drops is usual.

We must ensure that all glassware is properly cleaned and rinsed before beginning any analysis.

Erlenmeyer flasks are the flasks that are used to contain liquids and for mixing, heating, cooling, incubation, filtration, storage, and other liquid-handling processes. They have slanted sides and narrow necks which allow the contents to be mixed by swirling without the risk of spills, which is useful for titrations and for boiling liquids.

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Answer: .819 Moles of Air

Explanation: To solve this problem, we will use the Ideal Gas Law which states that PV=nRT. P represents pressure or internal pressure, V is volume, T is temperature, n is moles of a gas, and R is the Universal Gas Constant. For the ideal gas law, R is .08206. R is 8.314 for any other calculation. We are solving for the moles of gas. The gas in this case is air which is a mixture of gases but that isn't important.

Our givens are P = 7.3 atm, V = 2.67 L and T = 17.0°C. We convert T to Kelvin because the Ideal Gas Law requires that. We simply add 273 to the value in Celcius to convert it to Kelvin. Our T is now 290 K. We also know R is our Universal Gas Constant. We can now plug into the law.

(7.3 atm)(2.67 L) = n(.08206)(290 K)

n = ((7.3 atm)(2.67 L))/(.08206)(290 K)

n = .819 moles of air

Hope this helps!

The some of the potential in the real world applications for the renewable energy sources such as the solar power and the wind power are  electricity generation, the water heating and cooling, and the transportation.

Renewable energy defined as the energy produced from the sources like the sun and the wind energy which are the naturally replenished and which do not run out.

The Renewable energy which can be used for the electricity generation, and the water heating and the cooling, and the transportation. The most sustainable sources of the energy are the renewable bioenergy. The Renewable sources of the, like the wind and the solar, it will emit the little to no the greenhouse gases.

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The significance of the point where the pressure drops to zero is that at that point the gases would completely show ideal behavior.

The gas laws can be used to describe the behavior of the ideal gases. It is pertinent to note that the ideal gas law can strictly be applied to gases that are at a high temperature and low pressure.

We can be able to find the  temperature when the pressure is equal to zero either be the use of the equation line or by experiment. In that case, we would be able to obtain the point at which the pressure drops to zero.

The significance of the point where the pressure drops to zero is that at that point the gases would completely show ideal behavior.

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The following balanced chemical equation may be used to describe the interaction between aluminum (Al) and calcium nitrate (Ca(NO₃)₂):

2 Al + 3 Ca(NO₃)₂ → 2 Al(NO₃)3 + 3 Ca

Reactants are the chemicals that begin a chemical reaction, while products are the compounds that are created as a result of the reaction.

The substances that initiate a chemical reaction. Products are the substances that are created during the reaction. Compounds or elements can act as reactants and products.

Aluminium and calcium nitrate interact in this reaction to form aluminium nitrate (Al(NO₃)₃) and calcium (Ca), which are the end products.

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Answer: We can point out two main reasons: atoms and molecules are too small to bee seen without the help of complex equipments and there are too many particles (atoms or molecules) in a small amount of substance (6.022 x 10^23 particles per mol of substance).

Explanation:

The question requires us to explain why atoms and/or molecules can't be count in dozen.

We can point out two main reasons for why it is not practical to count atoms and molecules the way we do with donuts and eggs, for example:

- The first one is the size of this particles. We need powerful and complex equipments to be able to see atoms and molecules. The size of atoms, for example, is measured in Angstroms, which corresponds to 10^-10 meters. Although molecules are slightly bigger, they are still too small to be seen without complex microscopes.

- Considering that we were able to see atoms and molecules in order to count them, there would be another issue: the amount of atoms and/or molecules contained in small amount of substances is too big. For example: let's consider 18 g of water, which corresponds to approximately 1 mol of this substance; in 18 g of water there are 6.022 x 10^23 molecules of water - which is way more complex than counting a dozen (12) units of donuts, for example.

The concentration of a solution can be expressed in molarity, molality, mass percent, etc. By dissolving the same number of moles of each substance in the same volume of water a scientist make two solutions with the same molarity. The correct option is A.

The molarity of a solution is defined as the number of moles of the solute present per litre of the solution. It is usually expressed in mol / L. The equation used to calculate the molarity is:

Molarity = Number of moles of the solute / Volume of the solution in litres

The solutions with the same number of moles and volume have equal molarity.

Thus the correct option is A.

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