how to minimize the harmful effects of power station on our environment​

Answers

Answer 1
Burning low-sulfur-content coal to reduce SO2 emissions. Some coal-fired power plants cofire wood chips with coal to reduce SO2 emissions. Pretreating and processing coal can also reduce the level of undesirable compounds in combustion gases.

Related Questions

what mass of aluminium is required to produce 500g of aluminium chloride?

2Al + 3Cl₂ --> 2AlCl₃

Answers

Answer:

101.18 grams

Explanation:

From the equation you can see that the same number of MOLES will be required as MOLES of aluminum chloride produced.

Mole weight of aluminum chloride = 26.981 + 3 * 35.45 = 133.331 gm

     500 gms of this is then    500 / 133.331 = 3.75 moles

So you need 3.75 moles of aluminum

    3.75 moles * 26.981 g/mole = 101.18 grams of Al

101.07 grams of aluminum (Al) are required to produce 500 grams of aluminum chloride (AlCl₃) according to the given chemical equation.

Mass is a fundamental physical property of matter that represents the amount of substance contained in an object. It is a measure of the total amount of matter or material in an object, and it is typically measured in units such as grams (g) or kilograms (kg).

Molar mass, also known as molecular mass or formula mass, is the mass of one mole of a chemical substance. It is usually expressed in grams per mole (g/mol). Molar mass is a fundamental concept in chemistry that allows scientists to relate the mass of a substance to the number of moles it contains.

The balanced chemical equation is:

2Al + 3Cl₂ → 2AlCl₃

From the balanced equation, 2 moles of aluminum (Al) react with 3 moles of chlorine gas (Cl₂) to produce 2 moles of aluminum chloride (AlCl₃).

Molar mass of Al = 26.98 g/mol

Molar mass of Cl = 35.45 g/mol

Molar mass of AlCl₃ = 2 × (26.98 g/mol) + 3 × (35.45 g/mol)

= 133.34 g/mol

moles of AlCl₃ = mass / molar mass

moles of AlCl₃ = 500 g / 133.34 g/mol

= 3.749 moles

In the reaction, 2 moles of Al react to produce 2 moles of AlCl₃.

Therefore, moles of Al = moles of AlCl₃

moles of Al = 3.749 moles

Step 4: Calculate the mass of Al required:

mass of Al = moles of Al × molar mass of Al

mass of Al = 3.749 moles × 26.98 g/mol

= 101.07 g

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When a magnet spins within a coil of wires, what is produced?
A. blue sparks
B. glowing light
C. nuclear energy
D. an electric current

and

In an electric generator, ___ will increase the output of electricity.
A. decreasing the turns of wire
B. increasing the turns of wire
C. decreasing the size of the magnet
D. decreasing the speed if the spinning magnet

lastly

Electric field defined as force per charge. It is measured in units of newtons divided by _____.
A. watts
B. coulombs
C. mass
D. grams

thanks :)​

Answers

Decreasing the turns of wire

Which of the following observations would indicate that a material is a pure substance?

O It does not dissolve in water.

O It changes color after heating.

O It cannot be physically broken down into different types of atoms.

O It can be physically broken down into different types of molecules.

Answers

Answer:

C

Explanation:

Got it right on a test

Q2:- Which branch of chemistry deal with the structure and properties of naturally occurring molecules?​

Answers

Answer:

Explanation:

Organic ChemistryOrganic Chemistry It is often known as the 'Chemistry of Life' that deals with the structure, properties and reactions of organic compounds. A study of Organic Chemistry helps students to identify and classify the various naturally occurring compounds and to create one with desired properties and functions.

The branch of chemistry that deals with the structure and properties of naturally occurring molecules is Organic Chemistry.

What is Organic chemistry?

Chemistry is divided into several branches in which we learn inorganic chemistry, Physical chemistry, analytical chemistry and also organic chemistry. Organic chemistry deals with natural compounds in which we learn about chemical and physical properties of natural compounds and then the structures of organic compounds as well. We study about the formation of different organic compounds and which kind of compounds will be useful in which field.

For example- Alcohols can be used in vehicles, as solvents, it can be used to form many other organic compounds as well.

Aldehydes, Ketones are the organic compounds which has medicinal use and helps in forming other compounds as well.

Therefore, The branch of chemistry that deals with the structure and properties of naturally occurring molecules is Organic Chemistry.

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An electron on an energy level has an energy of 16.32 x 10−19 J. It moves to another level by absorbing 5.4 x 10−19 J of energy. Which of the following descriptions most likely explains what occurred?

The electron moved down to an energy level and has an energy of 10.92 x 10−19 J.
The electron moved down to an energy level and has an energy of 21.72 x 10−19 J.
The electron moved up to an energy level and has an energy of 10.92 x 10−19 J.
The electron moved up to an energy level and has an energy of 21.72 x 10−19 J.

Answers

Answer:

The electron moved up to an energy level and has an energy of 21.72 x 10−19 J.

Explanation:

i know

Answer:

D) The electron moved up to an energy level and has an energy of 21.72 x 10−19 J.

Explanation:

I took the test and got it right.

blocks on the periodic table will not list a(n):

Answers

Blocks on the periodic table will not list a mass number of elements in this scenario.

What is Periodic table?

This table comprises of elements in order of their atomic number which determines their chemical properties.

It contains the atomic number but however doesn't contain the mass number of the elements.

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There are 6.02 x 10^23 formula units Na2O in a sample. How many grams of Na2O is this? The molar mass of Na2O is about 62 g/mol.

Answers

Answer:

= 62g

Explanation:

We have been asked to find the mass of Na2O having 6.02 x 10^23 units.

We know that one mole of a substance contains 6.02 x10^23 units/particles.

That means we have one mole of Na2O.

To find the mass of Na2O we use the formula,

mass = number of moles x formula mass

= 1 mole x 62g/mol

= 62g

Therefore the mass of Na2O with 6.02 x 10^23 units is 62g.

what does ivf stand for and sexual intercom

Answers

Answer:IVF

Explanation:

What is the substance produced by a chemical reaction called?
a. Reactant
b. Product
c. Resultant
d. Reagent
e. Summation

Answers

Answer:

=> 11. d. Moon

The moon is not a light source because it does not emit its own light.

=> 12. b. The light is refracted.

13. What is the substance produced by a chemical reaction called?

=> b. Product

How many grams Fe2O3 would be
required to make 187 g Fe?

Fe₂O3 + 3CO →2Fe + 3CO2

Answers

267.14 gm grams[tex]Fe_2O_3[/tex] would be required to make 187 g Fe.

What is a balanced chemical equation?

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products.

The balanced equation:

Fe₂O₃ + 3 CO ⟶ 3 CO₂ + 2 Fe

We know that the molecular mass of iron-oxide = 160 g/mole.

We know that the molecular mass of iron = 56 g/mole.

From the above reaction, we can say that

1 mole of iron -oxide produces 2 moles of iron

160 gm of iron oxide produce 112 gm of iron

So,

1 gm of iron required 160÷112 =1.42 gram of iron oxide

Therefore,

187 gm of iron required 1.42 x 187 =265.54 of iron oxide.

Therefore 187 gm of iron required 267.14 iron oxide.

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How many moles of na2so4 are present in 284.078 grams of na2so4?
a. 2
b. 3
c. 5
d. 6

Answers

There are 2 moles of NA2SO4 present in 284.078 grams of NA2SO4. Why? Well, we already know here that there are 284.078 grams of NA2SO4. To find how many moles are present in this compound, we would have to divide these grams by the molar mass of the compound. When we go to the periodic table of elements, we will find that there are two moles sodium (which represents 45.98 grams), one mole sulfur (which represents 32.06 grams), and four moles oxygen (which represents 64 grams). When combining these, we would get one mole of sodium sulfate which is representative of 142.04 grams total. That is our molar mass. Now that we have the molar mass, we can go back and divide. 284.078 divided by 142.04 is equal to about 1.99999, and that rounds up to 2 moles. Hence, there are 2 moles of NA2SO4 present in 284.078 grams of NA2SO4.

Your final answer: A is your answer.

Recall all the models you described in task 1.(Bohr, Rutherford, Thomson, and Dalton) Think about the results each model would predict for Thomson’s experiment. Which atomic models does Thomson’s experimental evidence support? Explain why these models are compatible with the experimental results.

Answers

Thomson's experimental data does support the Rutherford model.

What is an atom?

The atom consists of matter that may be split without releasing electrical charges.

It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.

Rutherford was the one who first published the nuclear model of the atom. According to his atomic model, an atom's volume is largely empty,

The center of the atom houses the nucleus, which is made up of protons and neutrons, and its electrons follow certain pathways as they orbit it.

When compared to Rutherford's discoveries, the study of certain other scientists, like Dalton, Neil Bohr, and JJ Thomson, is mostly consistent.

For instance, Dalton's atomic theory assumed that atoms interact to create compounds and are nearly the same size.

Rutherford's theory states that atoms have a finite amount of electrons that may be shared to form compounds.

Rutherford's discoveries, which gave rise to the concept of shells, are also consistent with the Bohr model, which holds that electrons orbit the nucleus in certain shells.

Despite the fact that Rutherford's model was the best atomic model, it nevertheless drew from a number of prior studies and was compatible with their findings.

Hence Thomson's experimental data does support the Rutherford model.

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In What season of Breaking Bad did the character Walter White die.

Answers

Answer:

Season 5 lol

Explanation:

Answer:

season 1

Explanation:

the man was shot rip

There are 4.9875 mol C, 7.9802 mol H,
and 2.00 mol O in the sample.
Divide each by the smallest number of
moles. What is the ratio for the C?

[?] C [ ]H[ ]0

Answers

Answer:

So, in 1 mol there are 6.02x10^23 atoms, regardless of the susbtance, only the weight of the mol changes. Doing a simple rule of 3 we can get many of the answers to your questions.

Explanation:

1mol of Ar → 6.02x10^23 atoms

0.25 mol → X

So now what we do is (0.25mol * 6.02x10^23 atoms)/1 mol = X

That gives us 1.505x10^23 atoms in 0.25 mol of Ar.

For this I'm guessing you mean the stable form of oxygen, O2. The Avogadro constant stays well, constant.

1 mol of O2 → 6.02x10^23 molecules

1.0×10^-4 mol of O2 → X molecules

So you can do (1.0×10^-4 * 6.02x10^23) / 1mol = X

(I feel like this is homework, so i will help you, but not give you all the answer, will be good practice to try yourself) :)

For this you need to know the weight of a mol of Be. Luckily the periodic table gives us that number. The number under each element is the weight in grams of 1 mol .

Answer:

C- 2.48925 H- 3.9901 O- 1

Explanation:

Read the instructions

What is the empirical formula for the molecular formula given? Molecular formula: C5H12O

Answers

What is the empirical formula for the molecular formula given? Molecular formula: C5H12O

The empirical formula for the given molecular formula C₅H₁₂O. As the molecular formula cannot be reduced into simplest ratio, therefore, the empirical formula and the molecular formula are the same.

What is the empirical formula?

The empirical formula can be described as the simplest ratio of the number of different atoms present in a compound. The molecular formula of the compound can be described as the actual number of each different atom in a molecule. This formula is generally used and is also a multiple of the empirical formula of a compound.

The empirical formula provides the ratio of the number of atoms of a chemical in a given compound. The percentage composition directly gives the empirical formula of the compound.

The molecular formula can be reduced into the empirical formula of the compound by dividing the subscripts with a number that can provide the smallest ratio of the elements in the compound.

For the given molecular formula, the further simplest or most reduced ratio cannot be possible. Therefore, the empirical formula of the compound will be the same as the molecular formula. Therefore empirical formula of the compound is C₅H₁₂O.

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What is Mg ^-2 and SO4^-2=

Answers

MgSo4 will be formed

this question in the screenshot

Answers

Mass of hydrate + crucible = 47.29 g

Mass of anhydrous salt = 2.7 g

Molar mass of anhydrous salt CuSO4 = 159.5 g

Given,

mass of empty crucible = 42.45 g

mass of hydrate salt= 4.84 g

mass of crucible after first heating = 46.1 g

mass of crucible after second heating= 45.153 g

mass of crucible after third heating= 45.15 g

so, as per the question we need to find...

Mass of hydrate + crucible = ? g

Mass of anhydrous salt = ? g

Molar mass of anhydrous salt CuSO4 = ? g

∴Mass of hydrate + crucible = 42.45 + 4.48 = 47.29 g

The given salt is in hydrate form, to remove water from this molecule we need to perform heating .

So we are taking the substance into the crucible as it is in less quantity.

Here, we performed heating 3 times and note the weight after every heating.

After this, assume that the water is totally evaporated and the remaining salt is in anhydrous form,

Mass of anhydrous salt = 45.15 - 42.45 = 2.7 g

To find the molar mass of anhydrous salt of CuSO4,

atomic weight of Cu = 63.5 g

atomic weight of S = 32 g

atomic weight of O =16 g

molar mass of anhydrous salt of CuSO4 = 63.5 + 32 + (16 ×3)

                                                                   =159.5 gm

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There are 4.9875 mol C, 7.9802 mol H,
and 2.00 mol O in the sample.
Divide each by the smallest number of
moles. What is the ratio for the H?

Answers

did anyone able to look up this question

the ratio for the H is 3.9901

what are the most abundant metal in the earths crust from 1 to 10​

Answers

Answer:

1. Oxygen - 46.1%

2. Silicon - 28.2%

3. Aluminium - 8.23%

4. Iron - 5.63%

5. Calcium - 4.15%

6. Sodium - 2.36%

7. Magnesium - 2.33%

8. Potassium - 2.09%

9. Titanium - 0.565%

10.Hydrogen -0.140%

Explanation:

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What makes a compound an acid?

a. It dissolves into Hydrogen ions in water (H+ and H3O+)
b. It has a pH higher than 7
c. It dissolves into Hydroxide ions in water (OH-)
d. It cannot be mixed with oil

Answers

A. Dissolves into hydrogen ions in water

We know is B is wrong because pH higher than 7 is basic and not acidic

C is wrong because having more OH is basic which makes the compound a base rather than acid

Although D is also correct, the most likely answer is A

HELP FAST!!!!!!!
Which two groups have the same functional group?
O A. Amines and alcohols
B. Aldehydes and esters
C. Ketones and aldehydes
D. Esters and ethers

Answers

It’s d
I Did this myself and was right

Answer:

ketones and aldehydes

Explanation:

just took it!

What type of molecule is shown below

Answers

Answer:

alcohol

Explanation:

alcohol thus, C2H5OH

if element X has two valence electrons and element Y has five valence electrons the formula for the compound is?

Answers

Answer:

the answer to the question is X3Y2

How many moles of plutonium
are present in a sample
containing 8.4 x 1022 atoms of Pt?

?] moles Pt

Answers

0.139 moles of plutonium are present in a sample containing 8.4 x 10²² atoms of Pt.

How to calculate number of moles?

The number of moles of a substance can be calculated using the following expression:

no of moles = no of molecules ÷ 6.02 × 10²³

According to this question, 8.4 × 10²² atoms of plutonium are present in the molecule of plutonium.

no of moles = 8.4 × 10²² = 6.02 × 10²³

no of moles = 1.39 × 10-¹

no of moles = 0.139moles

Therefore, 0.139 moles of plutonium are present in a sample containing 8.4 x 10²² atoms of Pt.

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Fatty acids are a component of:

Answers

According to the research, fatty acids, which are long molecules in the form of a hydrocarbon chain, are a component of lipids.

What are lipids?

They are hydrophobic and water-insoluble molecules that are formed from the esterification of alcohols with fatty acids.

Lipids are a vital part of the diet of living beings since many vitamins are assimilated in the presence of certain lipids and many fatty acids are essential for animal metabolism.

Therefore, we can conclude that according to the research,  fatty acids, which are long molecules in the form of a hydrocarbon chain, are a component of lipids.

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PLEASE HELP FAST! What is the percent yield if 0.856 g of NO is actually obtained in the lab during the following reaction: 4NH3 + 5O2 --> 4NO + 6H2O . 6.3 g of Ammonia was reacted with 1.8 g of Oxygen?


Options:

A. 20.1%

B. 53.5%

C. 89.4%

D. 63.4%

Answers

The percent yield of the reaction is 63.4%; option D

What is percent yield?

Percent yield of a reaction is given as:

Percent yield = actual yield/expected yield * 100 %

Actual yield of the reaction = 0.856 g

Expected yield = 1.8/32 * 4/5 * 30 = 1.35 g

Percent yield = 0.856/1.35 * 100 % = 63.4 %

Therefore, the percent yield is 63.4%.

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What is an example of climate?

Answers

Answer:

Tropical.

Dry.

Temperate.Continental.Polar.

Explanation:

The tropical climate in the Köppen system is defined as having an average temperature in every month of above 18°C. There is no winter season, and annual rainfall is large and exceeds the annual evaporation.

The dry climate regions are characterized by evaporation surpassing the humidity of precipitation. It is represented with the letter "B" in the Köppen climate classification. Precipitation is infrequent and vegetation is scarce in these areas.

Temperate climates are generally defined as environments with moderate rainfall spread across the year or portion of the year with sporadic drought, mild to warm summers and cool to cold winters.

A relatively dry climate with very hot summers and very cold winters, characteristic of the central parts of Asia and North America.

A polar climate consists of cool summers and very cold winters, which results in treeless tundra, glaciers, or a permanent or semi-permanent layer of ice. It is identified with the letter E in the Köppen climate classification.

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[tex]\\ \blue{MaggieEve}[/tex]

Which of the following is the best definition of nuclear fusion?
A. Nuclear fusion is the release of high-energy photons from a
nucleus.
B. Nuclear fusion is the joining of two or more nuclei into one
nucleus.
C. Nuclear fusion is the formation of new isotopes through a gain of
electrons.
D. Nuclear fusion is the splitting of a nucleus into two or more nuclei.

Answers

Answer:

B. Nuclear fusion is the joining of two or more nuclei into one nucleus.

The best definition of nuclear fusion : Nuclear fusion is the joining of two or more nuclei into one nucleus.

What is Nuclear reaction ?

Nuclear reaction, change in the identity or characteristics of an atomic nucleus, induced by bombarding it with an energetic particle.

The bombarding particle may be an alpha particle, a gamma-ray photon, a neutron, a proton, or a heavy ion.

Nuclear Fusion reactions power the Sun and other stars.

In a fusion reaction, two light nuclei merge to form a single heavier nucleus.

The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei. The leftover mass becomes energy.

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Compare
Ion and Radical
Atom and molecule
Organic and inorganic compounds

Answers

Answer:

'An ion has a non-zero electric charge. A radical has an atom with unfilled electron shells and so is very reactive, but is electrically neutral.'

'Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.'

'The primary difference that lies between these organic compounds and inorganic compounds is that organic compounds always have a carbon atom while most of the inorganic compounds do not contain the carbon atom in them.'

Organic and inorganic compounds:

Similarities:::---

1) In both organic and inorganic compound, the elements joining in making compound complete their octet.

2) Organic compound shows isomerism (R/S , E/Z , cis/trans, enantiomers, diastereomers, etc), just as inorganic compound do (Δ/Λ, enantiomers, R/S enantiomers, cis/trans, fac/mer isomers, etc).

3) Organic compound and inorganic compounds can be very active in chemical reactions, e.g. organolithium reagents could be flammable or even pyrophoric (generally stored under 10°C), while inorganic reagents like in this paper are quite rapid...

Differences:::---

1) Organic compound are very long in size so they can make polymer but inorganic compound are not very long but its structure might me complex.

2) The boiling,melting point of organic compound is lass than inorganic compound.

3) Organic compound always contains carbon but inorganic compounds might not.

4) Organic compound

_____________________________

Ion and Radical Atoms:

In some sense they are a bit similar. The main difference is that a neutral radical has no charge imbalance between the protons and electrons, but the cation or anion does.

Ions are written with an explicit charge because of that charge imbalance, but radicals may or may not have an imbalance of charge. Just because a molecule is a radical doesn't mean it's neutral.

For example, if you shoot 2-pentanone with an electron beam for Electron "Impact" Mass Spectroscopy, where you essentially study molecules whose structures break into smaller pieces as a result of interacting with stray electrons to identify the molecules, you get a cationic radical (middle, or far right of the following diagram).

Explain why beryllium looses electrons while ionic bonds,while Sulfur gains electrons.

Answers

Answer:

Since Beryllium has a larger atomic radius than Sulphur its electrons are not strongly attracted to the nucleus hence lost easily. But Sulphur has a small atomic radius hence electrons are more closely attracted to the nucleus.

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Find f(g(x)) for the functions f(x)=5sqrt(x+1)-2 and g(x)=x^2-1 When a fish swims from salt water into fresh water, its cells react by: A. gaining water and swelling. B. dividing to increase surface area. C. fusing to decrease surface area. D. losing water and shrinking. Jon does an experiment in which he varies the amount of calcium chloride (CaCl2) powder used for the chemical reaction with sodium bicarbonate (NaHCO3). He plans to observe whether the amount of CaCl2 powder has an effect on reaction rate.Make the most logical prediction for the results of his experiment using the drop-down menus.I predict that using a larger amount of calcium chloride powder will ______a. increase b. decreasec. have no effect on the reaction rate because the calcium chloride molecules will ______a. have more kinetic energyb. balance the number of product moleculesc. collide more often with other reactant molecules Divide.round to the nearest tenth .16.03220 3. Find the value of 99225. Hence find the sum of 992.25 and 9.9225. educated to be attuned to the whole person, not just the unique presenting healthproblem. Millicent brushed back a strand of hair. It was stiff and sticky from the egg that they had broken on her head as she knelt blindfolded at the sorority altar a short while before. There had been a silence, a slight crunching sound, and then she had felt the cold, slimy egg-white flattening and spreading on her head and sliding down her neck. She had heard someone smothering a laugh. It was all part of the ceremony.What technique does the author use to describe Millicent in this scene? All of the following encouraged European expansion and exploration in the 15th and 16thcenturies EXCEPT ONE. Which of the following is the EXCEPTION?O the invention of the printing pressO the invention of the lateen sailO the need for a streamlined route to the spices and silks of the AmericasO the development of nation-states p + (-q) - 2 = ? When p = -3 and q = 5 In which part of a prsentation should you provide background information, ask a thoughtful question, or offer aninteresting fact? A random sample is selected from a population with mean = 100 and standard deviation = 10. Determine the mean and standard deviation of the x sampling distribution for each of the following sample sizes. (Round the answers to three decimal places.)If N=41If N=130 How many moles of electrons are transferred when 2.0 moles of aluminum metal react with excess copper(II) nitrate in aqueous solution to form Al(NO3)3(aq) and Cu(s) How many words does the english translation of the universal declaration of human rights have. What were the author's purposes in writing It's Our World, Too!: Young People Who Are Making a Difference?Check all that applyO to entertain readers with the antics of young high school studentsO to persuade readers that all students are equal, regardless of raceO to inform readers about the ways young people are changing the worlda O to entertain readers with a story about high schoolers who made a changeto persuade readers that racism still exists in today's society inO to inform readers about different ways that changes can be made what are the three main reason for the french revolution The shorter leg of a right triangle is 5cm shorter than the longer leg. The hypotenuse is 5cm longer than the longer leg. Find the side lengths of the triangle. Proper, smooth shifting is important because if you shift before your vehicle is ready Find the area of the following region.The region common to the circles r=-2sin(theta) and r=1 19% of 49 in a decimal PLEASE HELPQuestion 3 Alexa wants to use an indirect proof to prove that all rectangles are not squares. She first assumes that all rectangles are squares. Alexa then provides the following counterexample to disprove her assumption. She concludes that all rectangles must not be squares. Which statement best describes Alexa's indirect proof? Alexa's proof is incorrect. She followed the steps of an indirect proof in the wrong order. O Alexa's proof is incorrect. She made an error in her assumption. O Alexa's proof is correct and contains no errors. Alexa's proof is incorrect. She made an error in her counterexample. #