in the following reaction 2Al + FeO2 ---> Al2O2 +2Fe. If 8 grams of Fe2O3 reacted with an excess of Al the maximum number of moles of Fe could be produced is ? A. 0.100 b. 0.200 c. 0.300 4. 0.400

Answers

Answer 1

The maximum number of moles of Fe could be produced is 0.1 option - A is correct.

How are grams and moles converted?

The grams to moles formula must be used in order to accurately calculate the number of moles, n, of a substance with a given mass, m, (in grams): M is the material's molar mass, so n = m / M.

According to the periodic table, the molecular mass of iron, to three decimal places, is 55.845 and its elemental symbol is Fe.

Moles = mass/molar mass

Molar mass of Fe = 56

Number of moles of Fe = 8/56

Number of moles of Fe = 0.14moles.

To know more about moles visit:

https://brainly.com/question/2001450

#SPJ1


Related Questions

Be sure to answer all parts. Write a balanced equation and Kb expression for the following Brønsted-Lowry base in water: guanidine, (NH2)2CNH (double bonded N is most basic). Include the states of all reactants and products in your equation. You do not need to include states in the equilibrium expression. Do not include double bonds in your answers below.Balanced equation:Kb expression:[OH- / [(NH2)2CNH)]

Answers

The balanced equation for the reaction of guanidine with water is: (NH2)2CNH (aq) + H2O (l) ⇌ (NH2)2CNH2+ (aq) + OH- (aq).

The Kb expression for this reaction is: Kb = [OH-] [(NH2)2CNH2+] / [(NH2)2CNH]

In this reaction, guanidine acts as a Brønsted-Lowry base by accepting a proton from water to form the conjugate acid (NH2)2CNH2+ and the hydroxide ion (OH-).

The Kb expression reflects the equilibrium between the reactants and products, with the concentrations of the products in the numerator and the concentration of the base in the denominator.

know more about guanidine here

https://brainly.com/question/30901805#

#SPJ11

Help plz:))) I’ll mark u brainliest ASAP 10 points

Help plz:))) Ill mark u brainliest ASAP 10 points

Answers

Answer: I believe it’s the second one

(F)

Explanation:

Which of the following describes an impact of the specific heat of water on the planet? (3 points)

A. Islands and coastal places have moderate pleasant climates.

B. Ocean waters experience sudden spikes and drops in temperature.

C. The internal temperature of living organisms varies over a wide range.

D. Inland places have minimal temperatures changes throughout the year.

Answers

An impact of the specific heat of the water on the planet is that islands and coastal places have moderately pleasant climates. Therefore, option A is correct.

The specific heat of water is relatively high compared to other substances. This means that water requires a significant amount of heat energy to increase its temperature. As a result, water has a stabilizing effect on the climate of coastal and island regions.

The high specific heat of the water helps to moderate temperature changes, resulting in milder and more pleasant climates in these areas.

Learn more about specific heat, here:

https://brainly.com/question/31608647

#SPJ1

what is the scope of humidity?

Answers

Humidity refers to the amount of moisture present in the air or atmosphere. It is a crucial atmospheric parameter that impacts various aspects of our environment and daily lives.

The scope of humidity extends across multiple domains, including meteorology, agriculture, health, and technology. In meteorology, humidity plays a vital role in determining weather patterns, cloud formation, and precipitation. In agriculture, it affects crop growth, irrigation requirements, and pest control. Humidity also influences human comfort and well-being, as high humidity can make temperatures feel hotter and exacerbate respiratory conditions. Moreover, industries such as manufacturing and electronics depend on humidity control to ensure product quality and prevent damage.Understanding and managing humidity levels are essential for optimizing numerous processes, improving human health, and maintaining the balance of ecosystems.

For such more question on Humidity

https://brainly.com/question/21494654

#SPJ8

A scientific law is different from a scientific theory because it describes something in nature without attempting to explain it.

Answers

Yes, that statement is generally correct. A scientific law is a statement that describes a phenomenon or pattern in nature, often expressed mathematically, without attempting to explain why it occurs. A scientific theory, on the other hand, is a well-substantiated explanation for a set of phenomena, based on empirical evidence and scientific reasoning.

A scientific law summarizes what happens in a particular situation, often in the form of an equation or formula, whereas a scientific theory attempts to explain why it happens.

For example, the law of gravity describes the attraction between masses, but it does not explain why this attraction occurs. In contrast, the theory of general relativity attempts to explain the underlying principles of gravity, including its effects on the curvature of space-time.

It's worth noting that both scientific laws and scientific theories are based on empirical evidence, but they serve different purposes in scientific inquiry. Laws describe what happens in a particular situation, while theories attempt to explain why it happens.

For more question on scientific law click on

https://brainly.com/question/16347879

#SPJ11

For some transformation having kinetics that obey the Avrami equation, the parameter n is known to have a value of 1.5. If the reaction is 25% complete after 125 sec, how long (total time) will it take the transformation to go to 80% completion?

Answers

Time taken the transformation to go to 80% completion t = 259.04 sec

From Avrami equation we have

Y= 1 - e^{-Kt^n}  

here

Y = 50%

T Time of reaction completion = 148 sec

n = 1.8

putting all value to get constant K

0.5=1- e^{-K*148^1.8}

e^{-K*148^1.8} = 0.5

Taking log on both side

-K*148^{1.8} = -0.693

K=8.59 * 10^{-5}

NOW GIVEN

0.85= 1 - e^{- 8.59 * 10^{-5} *t^1.8}

e^{- 8.59 * 10^{-5} *t^1.8} = 0.15

Taking log on both side

- 8.59 * 10^{-5} *t^1.8 = -1.897

t = 259.04 sec

The speed at which a chemical reaction occurs is called the reaction rate, and it is defined as proportional to the increase in the concentration of a product per unit time and to the. decrease in the concentration. of a reactant per. unit time. Reaction rates. can vary significantly. For instance, cellulose burns in a fire in a matter of fractions of a second, unlike the sluggish, years-long oxidative corrosion of iron under the Earth's atmosphere. The rate typically decreases with time for most reactions. Monitoring the concentration alterations over time allows one to calculate the pace of a reaction.

Learn more about Time here:

https://brainly.com/question/13693578

#SPJ4

PLEASE help, ill mark brainliest. an inflated balloon is left outside overnight. initially, it has a volume of 2.89L when the temperature 32.4 degree celsius and the pressure is 101.87 kPa.the temperature falls to 22.3 degree celsius and the pressure remains constant. what is the volume now?

a) what temperature scale must be used?
b) calculate the new volume

Answers

Answer:

B) 2.85 ∘C

Explanation:

A) Kelvin

How many bonds will form between 2 nitrogen atoms? (N2)
no bonds form
O 3
O 2
O1

How many bonds will form between 2 nitrogen atoms? (N2)no bonds formO 3O 2O1

Answers

Answer: Between 2 nitrogen atoms, 3 covalent bonds will form. So answer choice A is the correct answer.

Which describes a likely advantage of the roots that gymnosperms have?

-They are shallow, preventing the plants from growing too tall above ground.

-They are shallow, allowing the plants to easily gather water from Earth’s surface.

-They grow deep, preventing the plants from growing too tall above the ground.

-They grow deep, allowing the plants to gather water from far below Earth’s surface.


please answer quickly! im being timed on EDGE

Answers

Answer: They grow deep, allowing plants to gather water from far below Earth's surface- D

Explanation: Sorry I dont have time to explain its D on edgen

To solve this we must be knowing each and every concept related to gymnosperms. Therefore, the roots that gymnosperms  grow deep, allowing the plants to gather water from far below Earth’s surface. The correct option is option D.

What is gymnosperms?

Unlike angiosperms, and flowering plants, because seeds are closed by fully developed ovaries, or fruits, gymnosperms, or any vascular plant, reproduce by the use of a exposed seed, or ovule.

Many gymnosperms bear their seeds in cones, which are known as "seeds" because they are never visible until they are fully developed. The roots that gymnosperms  grow deep, allowing the plants to gather water from far below Earth’s surface.

Therefore, the roots that gymnosperms  grow deep, allowing the plants to gather water from far below Earth’s surface. The correct option is option D.

To know more about gymnosperms, here:

https://brainly.com/question/4526473

#SPJ6

the number of elements in 2CH4

Answers

Answer:mnedd kfj

Explanation:

fr rb r

Venus's atmosphere, while primarily CO2, is also 3.5% nitrogen gas (i.e. mole fraction of 0.035). What is the partial pressure of nitrogen on Venus in kPa given that the total atmospheric pressure is 1334 psi?

Answers

The partial pressure of nitrogen on Venus is approximately 321.914 kPa.

To find the partial pressure of nitrogen on Venus, we need to calculate the partial pressure using the mole fraction of nitrogen and the total atmospheric pressure. First, we convert the total atmospheric pressure from psi to kilopascals (kPa) since the mole fraction is given in terms of kPa.

1 psi = 6.89476 kPa

Therefore, the total atmospheric pressure on Venus is:

1334 psi × 6.89476 kPa/psi = 9197.53 kPa

Next, we can calculate the partial pressure of nitrogen using the mole fraction. The mole fraction of nitrogen is given as 0.035, which means that nitrogen makes up 3.5% of the total moles of gas in the atmosphere.

The partial pressure of nitrogen is given by:

Partial pressure of nitrogen = Mole fraction of nitrogen × Total atmospheric pressure

Partial pressure of nitrogen = 0.035 × 9197.53 kPa

Partial pressure of nitrogen = 321.914 kPa

Therefore, the partial pressure of nitrogen on Venus is approximately 321.914 kPa.

It's important to note that the given atmospheric composition of Venus's atmosphere and the total atmospheric pressure are approximate values and can vary depending on specific conditions and measurements.

For more such question on partial pressure visit:

https://brainly.com/question/19813237

#SPJ8

does the law of conservation of mass hold true in its original form at present give reason​

Answers

Answer:

yes

Explanation:

Lavoisier's finding laid the foundation for modern chemistry and revolutionized science. The Law of Conservation of Mass holds true because naturally occurring elements are very stable at the conditions found on the surface of the Earth. Most elements come from fusion reactions found only in stars or supernovae.

Once alchol is in the bloodstrram it will reach the brain I'm a few

Answers

Once alcohol is in the bloodstream it will reach the brain in a few seconds to minutes, depending on various factors such as the amount and concentration of alcohol consumed, body weight, metabolism, and other individual factors.

Alcohol's Effects on Brain

Alcohol can swiftly cross the blood-brain barrier after it is ingested, having an impact on the brain and neurological system. Depending on the quantity and frequency of drinking, alcohol's effects on the brain can range from minor disturbances in judgment and coordination to more serious consequences including loss of consciousness and, in the worst circumstances, death.

Long-term changes in brain structure and function, such as cognitive impairment and a higher chance of developing specific neurological and mental illnesses, can also result from chronic alcohol consumption.

Once alcohol is in the bloodstream it will reach the brain in a few seconds to minutes, depending on various factors such as the amount and concentration of alcohol consumed, body weight, metabolism, and other individual factors.

Learn more on effects of alcohol on the body here https://brainly.com/question/6511905

#SPJ1

There are four different starting molecules that one might use to synthesize the illustrated alkyl halide as the major product using an electrophilic addition reaction. Please draw all four of them.

Answers

Answer:

Explanation:

An electrophilic addition reaction occurs when an electrophile attacks a substrate, with the end result being the inclusion of one or many comparatively straightforward molecules along with multiple bonds.

In the given question, the hydrogen bromide provides the electrophile while the bromide is the nucleophile. The mechanism proceeds with the attack of the electrophile on the carbon, followed by deprotonation. This process is continued with a formation of carbocation and the bromide(nucleophile) finally bonds to the carbocation to form a stable product.

The first diagram showcases the possible various starting molecules for the synthesis while the second diagram illustrates their mechanism.

There are four different starting molecules that one might use to synthesize the illustrated alkyl halide
There are four different starting molecules that one might use to synthesize the illustrated alkyl halide

1. Which solvent is best for the following solute. Explain why
a.
Explain:
a
9:0:
A
CH₂
H₂c
H₂c
b
HC
HC.
CH₂
CH
CH₂
CH₂
HC-0:

Answers

The solubility of the solute in the solvent depends on intermolecular interactions.

How does the nature of the solvent affect its ability to dissolve a solute?

The nature of the solute and the solvent alone determines how soluble they are in a solvent. In a polar solvent, a polar solute dissolves. In a non-polar solvent, a polar solute is poorly soluble. In a non-polar solvent, a non-polar solute dissolves.

Since the question is incomplete, we can not see what the solute or the solvent ought to have been. However, we must know that the solubility of the solute in the solvent must depend on intermolecular interactions between the both.

Learn more about solute:https://brainly.com/question/1202167

#SPJ1

Which of the following can be mixed in solution with NH3 to make a buffer?

Which of the following can be mixed in solution with NH3 to make a buffer?

Answers

Choice C) RbOH, HBr cannot be mixed together to form a buffer solution.

Answer:

c. NaOH

Explanation:

just took the quiz

11. In a reaction from number 10, 65.0g of Ni(NO3)2 is reacted with 58.0g KOH. Which is
the limiting reactant? Show your work for credit. (4pts)

Answers

Answer:

Ni(NO3)2 is the limiting reactant.

Explanation:

- First, we balance the equation...

Ni(NO3)2 + 2 KOH --->  2 KNO3 + Ni(OH)2

- Second, we find the moles of each substance...

65g Ni(NO3)2 / 182.703g Ni(NO3)2 = 0.356 mol Ni(NO3)2

58g KOH / 56.1056g KOH = 1.034 mol KOH

- Third, to make the molar ratio equal to each other for comparison, we either multiply KOH by 1/2 or multiply Ni(NO3)2 by 2 to compare the number of moles; because the Ni(NO3)2 to KOH molar ratio is 1 to 2. Note that the multiplication of moles is only for comparison. We do not use these multiplied values. We use the values from step 2...

0.356 mol Ni(NO3)2 * 2 = 0.712 mol Ni(NO3)2

0.712 mol Ni(NO3)2 < 1.034 mol KOH ... Ni(NO3)2 is the limiting reactant.

Who has course hero?I really need the “lion king…Ecology science.” Answer key so I can print it.It wont let me print mines.

Answers

Note that the above prompt on Ecology draws it's analysis form a well known story which have been told visually called "The Lion King".

The answers are:

1) Biotic Factors, simply put are living things

2 examples of things from Lion King Introduction are:

The MonkeyThe LionThe Grass

3) Abiotic factors are Non -living things.

4) Examples from the introduction are:

MountainWaterDirt

5) the symbiotic relationship is called: commensalism.

What is commensalism?

Long-term biological interactions known as commensalism occur when individuals of one species benefit while those of the other species suffer neither advantages nor harm.

Ecology which is the study of the environment, allows  a person  to comprehend how different types of creatures coexist in various kinds of physical settings.

Learn more about Ecology  at:

https://brainly.com/question/30429252

#SPJ1

Full Question:

Although part of your question is missing, you might be referring to this full question:

1) What is Biotic Factors

2) List three biotic factors from the Lion King introduction

3) What is Abiotic factors?

4) List three Abiotic factors from the Lion King introduction

5) The bird riding on the tusks of the elephant feed on insects the elephant stirs up. What kind of symbiotic relationship exists between the two?

An atomic emission spectrum of hydrogen shows three wavelengths:

121.5 nm,102.6 nm, and 97.23 nm

Assign these wavelengths to transitions in the hydrogen atom.

Drag the appropriate items to their respective bins.

Answers

We have that wavelengths to transitions in the hydrogen atom.

\(nf=2,ni=1 \rightarrow 121.5nm\\\\ni=1,nf=3 \rightarrow 102.6nm\\\\\ni=1,nf=4 \rightarrow 97.2nm\)

From the question we are told that

121.5 nm,102.6 nm, and 97.23 nm

Generally the equation for wavelength  is mathematically given as

\(\frac{1}{\lambda}=R_H*(\frac{1}{nf^2}-\frac{1}{nf^2})\\\\\frac{1}{\lambda}=1.097*10^7*\frac{1}{nf^2}-\frac{1}{ni^2}\)

Therefore

For nf=2,ni=1

\(\frac{1}{\lambda}=1.097*10^7*\frac{1}{2^2}-\frac{1}{1^2}\\\\\frac{1}{\lambda}=121.5nm\)

For ni=1,nf=3

\(\frac{1}{\lambda}=1.097*10^7*\frac{3}{1^2}-\frac{1}{1^2}\\\\\frac{1}{\lambda}=102.6nm\)

For ni=1,nf=4

\(\frac{1}{\lambda}=1.097*10^7*\frac{1}{4^2}-\frac{1}{1^2}\\\\\frac{1}{\lambda}=97.2nm\)

Therefore

The Correct slots are

\(nf=2,ni=1 \rightarrow 121.5nm\\\\ ni=1 ,nf = 3  \rightarrow 102.6nm\\\\\ni=1,nf=4   \rightarrow  97.2 nm\)

For more information on this visit

https://brainly.com/question/13025901?referrer=searchResults

HQ5.40
Homework Answered Due Today, 11:59 PM
The reaction 3H₂(g) + N₂(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 1 g of hydrogen and 2 g of nitrogen are
reacted, how much heat is produced (kJ)?

Answers

The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ

How do i determine the heat energy produced?

First, we shall obtain the limiting reactant. Details below:

3H₂ + N₂ -> 2NH₃

Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 g Molar mass of H₂ = 2 g/molMass of H₂ from the balanced equation = 3 × 2 = 6 g

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂

We can see that only 0.43 g of H₂ is needed in the reaction.

Thus, the limiting reactant is N₂

Finally, we the amount of heat energy produced. Details below:

3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ

Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 g

From the balanced equation above,

When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.

Therefore,

When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ

Thus the heat energy produced from the reaction is -6.61 KJ

Learn more about heat energy:

https://brainly.com/question/31429264

#SPJ1

Which set of terms best defines what affects kinetic energy and potential energy, respecrively

Answers

The correct answer is velocity and height!

What is the function of the esophagus?

Answers

The esophagus functions primarily as a transport tube that directs the progression of food and fluids from the mouth to the stomach.

The function of the esophagus is to help with food consumption (correct me if I’m wrong)

How many grams of NaCl

How many grams of NaCl

Answers

You would recover 36.525g of NaCl after evaporating all of the water.

How to find the how many grams of NaCl that would be recover when  all water is evaporated off of this solution?

To find the grams of NaCl that would be recovered after evaporating all the water, we can use the following formula:

mass = moles * molar mass

Where:

Moles = Molarity * Volume

Molarity = 0.250 M

Volume = 2500.0 mL = 2.5 L

Molar mass of NaCl = 58.44 g/mol

mass = 0.250 M * 2.5 L * 58.44 g/mol

mass = 36.525 g

Learn about evaporation here https://brainly.com/question/2013258

#SPJ1

Mangrove trees grow in swampy areas and have strong roots that hold the soil in place. How is this helpful for the environment?


a

They absorb water from the soil.


b

They overtake the environment.


c

They provide wood for humans.


d

They protect the land from eroding

Answers

Mangrove trees' robust roots aid in stabilizing the soil and preventing soil erosion. This is especially crucial in swampy coastal locations, where the soil is frequently loose and prone to wind and wave erosion. Mangrove trees work to stabilize the coastline and stop land erosion by securing the soil in place.

Mangrove trees also aid in removing contaminants from the water, enhancing the quality of the water in coastal areas while serving as an essential home for a variety of wildlife species. Mangrove trees contribute significantly to environmental protection and are an essential component of coastal ecosystems.

Mangrove trees are crucial for environmental preservation because they hold the soil in place and stop erosion in marshy coastal areas. They also provide crucial habitats for numerous wildlife species, stabilize the coastline, and stop the land from being lost to erosion while enhancing water quality by filtering pollutants from the ocean.

Mangrove trees are an essential part of coastal ecosystems overall, and preserving them is essential for preserving a healthy and sustainable environment.

learn more about Mangrove trees here

https://brainly.com/question/19385367

#SPJ1

How many elements are in the compound C2H8O

Answers

Answer:

I think 2

Explanation:

The number of atoms in 10. grams of calcium is equal to 6.0 x 1023 multiplied by which number?

Answers

Answer:

1.51×10²³ atoms.

Explanation:

From the question given above, the following data were obtained:

Mass of Calcium (Ca = 10 g

Number of atom of Calcium (Ca) =?

The number of atoms present in 10 g of Ca be obtained as follow:

From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ atoms. This implies that 1 mole Ca contains 6.02×10²³ atoms.

1 mole of Ca = 40 g.

Now, if 40 g of Ca contains 6.02×10²³ atoms.

Therefore, 10 g of Ca will contain = (10 × 6.02×10²³) / 40 = 1.51×10²³ atoms.

Thus, 10 g of calcium contains 1.51×10²³ atoms.

9.16 liters of CO2 weighs how many grams?

Your answer

Answers

Answer:

18.0g of CO₂ are present in 9.16L

Explanation:

To solve this question we must use:

PV = nRT

In order to find the moles of the gas and with its molar mass (44.01g/mol for CO₂) we can find the mass of the gas

Assuming STP conditions:

P = 1atm at STP

V = 9.16L

n are the moles of CO₂

R = 0.082atmL/molK

T = 273.15K

Replacing:

PV / RT = n

1atm*9.16L / 0.082atmL/molK*273.15K = n

0.409 moles = Moles of CO₂

The mass is:

0.409 moles CO₂ * (44.01g / mol) =

18.0g of CO₂ are present in 9.16L

C2H6O + 3 O2 → 2 CO2 + 3 H2O
How many moles of CO2 is produced with 8.5 g of O2
0.32 mol
5.7 mol
0.53 mol
0.18 mol

Answers

The number of moles of CO₂ produced from the reaction of 8.5 g of oxygen gas, O₂ is 0.18 mole (last option)

How do i determine the number of mole of CO₂ produced?

We shall begin by obtaining the mole in 8.5 g of oxygen gas, O₂. Details below:

Mass of oxygen gas, O₂ = 8.5 grams Molar mass of oxygen gas, O₂ = 32 g/mol Mole of oxygen gas, O₂ =?

Mole = mass / molar mass

Mole of oxygen gas, O₂ = 8.5 / 32

Mole of oxygen gas, O₂ = 0.266 mole

Finally, we shall determine the number of mole of CO₂ produced. Details below:

C₂H₆O + 3O₂ -> 2CO₂ + 3H₂O

From the balanced equation above,

3 moles of O₂ reacted to produce 2 moles of CO₂

Therefore,

0.266 mole of O₂ will react to produce = (0.266 × 2) / 3 = 0.18 mole of CO₂

Thus, the number of mole of CO₂ produced is 0.18 mole (last option)

Learn more about number of mole:

https://brainly.com/question/13375719

#SPJ1

The investigators were able to determine that the footprints were made by a Nike, size 10 tennis shoe; however, they couldn’t match it exactly to the suspect’s shoe. What is TRUE about this piece of evidence?

A.
They were unable to find class nor individual characteristics.

B.
They were only able to find class characteristics.

C.
They were only able to find individual characteristics.

D.
They were able to find both class and individual characteristics.

Answers

Answer

the correct answer would be A

Explanation:

They were unable to find class nor individual characteristics.

How are ocean waves formed? gravity energy transfer conduction radiation​

How are ocean waves formed? gravity energy transfer conduction radiation

Answers

i think is energy passing and if its not im so sorry :(((

Answer:

I apologize that I'm late and all But your answer is B. Energy Transfer.

Explanation:

The waves transfer energy to the sand for example.

Other Questions
What is one major drawback of globalization?O A. Poor workers in developing countries may not share in economicgains.O B. Environmental regulations have gotten in the way of economicgrowth.C. Businesses have access to fewer markets when selling theirproducts.D. Inflation rates have declined significantly because of increasedglobal trade. At what points will the line y = x intersect the unit circle x2 y2 = 1? smaller value and larger value NEED HELP PLEASE ASAPthanks- BRAINLIST only for correct answers :)Thank you!!In your own words, explain the Atlantic slave trade. Madi is going to the gym, she only has $53.27 with her. It is $15 per hour, she works out for 3 hours, she bought a snack bar for $2.57, how much money did she spend? x =x=x, equals ^\circ Manny is covering a book. The front of the book is 11.2 inches high and 7.3 inches wide. What is the area of the front of the book? Enter your answer as a decimal in the box. what is 23 in binary Consider an economy that is initially in a long-run equilibrium, and where the Central Bank conducting monetary policy is concerned only with price stability. Suppose the government is unsatisfied with the existing employment rate and increases government spending on goods and services, financed by borrowing, in order to further reduce the unemployment rate. Draw an AD-AS diagram and explain the impact of this fiscal policy action on output and prices in both the short run and the long run. In the new long-run equilibrium after the implementation of the fiscal policy measures, how do output, prices, and public debt compare with their initial equilibrium levels? Given the observed economic changes, discuss whether you would support the government's fiscal stimulus package. In your answer, you should also consider the issues of debt sustainability. Explain how your answers to the above questions would be different if the initial government spending plan is fully financed through lump-sum taxes, rather than through borrowing. Finally, comment on whether this type of expansionary fiscal policy would raise concerns for the Central Bank and indicate how it might adjust monetary policy in response. national efforts to improve the user experience are under way in the united states. one organization involved with this effort is the: Vertically polarized light with an intensity of 70 W/m2 passes through a polarizer whose transmission axis is at an angle of 60 degrees with the vertical. What is the intensity of the transmitted light In a dbr system, the mechanism that controls the rate at which the bottleneck dictates the throughput of the entire plant is called the. Hasan plans to choose a book from a section of the store where everything is 25% off. He writes the expression d0.25d to find the sale price of the book if the original price is d dollars.Bella correctly writes another expression, 0.75d, that will also find the sale price of the book if the original price is d dollars.Drag each description to explain each part of both expressions. Scale height in Earth's atmosphere a. The Earth's atmosphere is mostly diatomic nitrogen, with molecular weight u 28mp. For a typical temperature on a spring day (~ 50 F), compute the isothermal sound speed, Cs, in km/s, and as a ratio to the orbital speed in low-Earth orbit, Vorb = 7.9 km/s. b. Use this and Earth's surface gravity to compute the atmospheric scale height H for the Earth (in km), and its ratio to Earths radius, H/Re. How does the latter compare with cs/Vorb? c. The pressure at sea level is defined as 1 atmosphere (atm). Ignoring any tem- perature change of the atmosphere, estimate the pressure (in atm) at a typical altitude h = 300 km for an orbiting satellite. d. A satellite in circular orbit at this altitude of h = 300 km will typically stay in orbit for about decade. If the temperature of the remaining gas at this height is twice that of the Earth's surface, estimate how much higher the orbital height would have to be to double this orbital lifetime. In analyzing hits by bombs in a past war, a city was subdivided into 511 regions, each with an area of 1mi2. A total of 403 bombs hit the combined area of 511 regions. The Poisson distribution applies because we are dealing with the occurrences of an event (bomb hits) over some interval (a region with area of 1mi2 ). (a) Find the mean number of hits per region. (Round your answer to 2 places after the decimal point, if necessary.) = (b) Find the standard deviation of hits per region. (Round your answer to 2 places after the decimal point, if necessary.) = (c) If a region is randomly selected, find the probability that it was hit exactly twice. (Round your answer to 4 places after the decimal point, if necessary.) P(x=2)= (d) Based on the probability found above, how many of the 511 regions are expected to be hit exactly twice? (Round your answer to a whole number.) ans = (e) If a region is randomly selected, find the probability that it was hit at most twice. (Round your answer to 4 places after the decimal point, if necessary.) P(x2)= HELP ILL GIVE BRAINLEST Find the value of x. Under capitalism, the government prohibits people and businesses from competing with each other. (T/F). if you have a standard score of z = 1, what percentage of the population has scores farther away from the population mean (in either direction) than you? Why were Williams parents angry with the schoolmaster? {the boy who harnessed the wind} Marissa earns $1,000 after taxes twice a month. Marissa's monthly bills are $1,200. Marissa deposits 40% of her remaining monthly income into a savings account and annually saves: