How many grams of butane were in 1. 000 atm of gas at room temperature?

Answers

Answer 1

The mass in grams of butane at standard room temperature is 53.21 grams.

How can we determine the mass of an organic substance at room temperature?

The gram of an organic substance at room temperature can be determined by using the ideal gas equation which can be expressed as:

PV = nRT

Pressure = 1.00 atmVolume = 22.4 LRate = 0.0821 atm*L/mol*KTemperature = 25° C = 298 k

1 × 22.4 L = n × (0.0821 atm*L/mol*K×  298 K)

n = 22.4/24.4658 moles

n = 0.91556 moles

Recall that:

number of moles = mass(in grams)/molar mass

mass of butane = 0.91556 moles × 58.12 g/mole

mass of butane = 53.21 grams

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Related Questions

Calculate the mass of slver n grams depostedwhen 10.920 coulombs of electrcty s passed through a soluton of slver salt. (Ag= 180, 1 faraday-96500C)​

Answers

The mass of silver deposited when a current of 10A passed through a solution of silver salt for 4830s is A. 108.0g. B. 54. 0g. C. 27.0g. D. 13.5g ...

The speed of light through space is

Answers

The speed of light through space is 300 million m/s .

What is the limit of the speed ?

There was a time when everybody thought that there is no limit for the speed at which an object can travel , but Einstein gave the limit which is the speed of light.

The speed of the light in vacuum travels at a speed of 300 million m/s .

Therefore The speed of light through space is 300 million m/s .

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The ideal gas law only approximates the behaviour of real gases. The conditions
under which the ideal gas law is MOST accurate are

Answers

Answer:

I d K

Explanation:

If you take a 10.0 mL portion of a 14.8 M solution of NH3 and dilute it to a total solution volume of 0.500 L, what will be the concentration of the final solution

Answers

Answer:

no idea about this question sorry

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

Hich statement about scientific consensus is true? a. it represents the beliefs of most scientists. b. it is the only way to prove a theory true. c. it is necessary to form a hypothesis. d. it is an assurance that the interpretations of a study are correct. e. it is necessary before research can be published in a science journal.

Answers

The Answer should be A. A consensus is defined as a general agreement so it is something most scientists would believe.

An arrow is fired at a target on a high wall. How does the energy change between the moment the arrow is fired and the moment it hits the target?

o The potential energy and kinetic energy remain the same.
o The potential energy decreases as kinetic energy increases.
o The kinetic energy decreases as potential energy increases.
o The kinetic energy remains at zero, but potential energy increases.

Answers

The kinetic energy decreases as potential energy increases. Hence, option C is correct.

What is potential energy?

Potential energy is stored energy that depends upon the relative position of various parts of a system.

As the target is fired high on the wall, the change in the energy that is observed as the arrow moves toward the target is kinetic energy starts to decrease as the arrow reaches nearer to the target and the potential energy is observed to increase.

So, in short, the energy transformation is from kinetic energy from a moving arrow to potential energy when the arrow hits the target.

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The valence electrons found in metallic bonds are different from other bonds
because

A. their valance electrons are free-roaming
B.they allow conductivity of electricity
C.their valence electrons are immobile
D. They’re able to share electrons with other atoms

Answers

Answer:

their valence electrons are free roaming

IB Chemistry SL Question - Empirical/Molecular formulae
A 4.406g sample of a compound containing only C, H and O was burnt in excess oxygen. 8.802g of CO2 and 3.604g of H2O were produced.

i) Determine the empirical formula of the compound (section 6 of the data booklet)
ii) Determine the molecular formula of this compound if its molar mass is 88.12gmol-1

Answers

Answer:

(i)

Explanation:

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A 208.1 mL sample of gas exerts 574.6 mm Hg pressure at 44.4 ºC. What pressure does it exert at 68.1 ºC if the volume expands to 401.5 mL?
a. 320
b. 457
c. 190
d. 917

Answers

Answer:

a.  P = 320 mmHg

Explanation:

For this problem, the pressure, volume, and temperature are changing, so we'll need to combine Boyle's Law and Charles' Law:

[tex]\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}[/tex]

For this equation, the temperatures must be measured in Kelvin.  The rest of units in the equation only need to match between beginning and end conditions.

Recall that to convert from Celsius to Kelvin, add 273, or use the equation [tex]T_C+273=T_K[/tex].

So [tex]T_1=(44.4+273)[K]=317.4[K][/tex]  and [tex]T_2=(68.1+273)[K]=341.1[K][/tex]

Substituting known values, we can solve for the unknown:

[tex]\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}[/tex]

[tex]\dfrac{(574.6[mmHg])(208.1[mL])}{(317.4[K])}=\dfrac{P_2(401.5[mL])}{(341.1[K])}[/tex]

[tex]\dfrac{(574.6[mmHg])(208.1[mL]\!\!\!\!\!\!\!\!\!\!{--} )}{317.4[K]\!\!\!\!\!\!{-}}*\dfrac{341.1[K] \!\!\!\!\!\!{-}}{401.5[mL] \!\!\!\!\!\!\!\!\!\!\!{--} }=\dfrac{P_2(401.5[mL] \!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{-----})}{341.1[K] \!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{----}}*\dfrac{341.1[K] \!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{----}}{401.5[mL] \!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{-----} }[/tex]

[tex]320.056719296[mmHg]=P_2[/tex]

Accounting for significant figures, [tex]P_2=320.1[mmHg][/tex].  

The closest answer provided is 320, so "a".

Which shows two structures that are made mostly of metal?

Answers

Answer:

The bell and the Eiffel tower

the bell and the eiffel tower

Most alkaline permanent waves have a pH between:

Answers

The alkaline permanent waves have a pH between 9.0 to 9.6.

What are Alkaline permanent waves?

Alkaline permanent waves are chemical that is apply to the hair. The alkaline perm makes the hair curly or wavy.

The major ingredient is the ammonium thioglycolate and ammonium hydroxide.

The alkaline permanent wave is alkaline in nature and the pH scale for alkaline substances are higher.

pH of 7 depicts neutrality while pH of 7 and above depicts alkalinity.

Therefore, alkaline permanent waves have a pH between 9.0 to 9.6.

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Select the correct answer from each drop-down menu.
Scientific theories are always
testable
. A theory may be changed as a result of
.

Answers

Scientific theories are always testable. A theory may be changed as a result of new observations.

What are Scientific theories ?

A scientific theory is a set of laws, facts and hypotheses that have a complete vision of an aspect of reality.

It is a proposed explanation for a set of observable phenomena.

It allows in this way to organize and understand the observations and to be able to predict or provoke other future observations.

Theories can be modified or improved as more information is collected.

That is, theories can continue to be tested indefinitely, and eventually rejected, if the tests lead to it.  

Therefore, a scientific theory is testable by using a research method.

As mentioned, any theory can be tested or rejected as more information is collected.

This information to prove or reject theories are interpretations of observable facts, which generates new statements or allows to accept those already included in the theory.

Then, a theory may be changed as a result of new observations.

Finally, scientific theories are always testable. A theory may be changed as a result of new observations.

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Answer:

testable & new observations

Explanation:

How many grams of carbon are contained in one mole of[tex]C_{3}H_{8}[/tex] ?

Answers

[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \tt \rightarrow \:36 \:\: g [/tex]

____________________________________

[tex] \large \tt Explanation \: : [/tex]

The given compound has 3 carbon atoms, so in 1 mole of that compound, there will be 3 moles of carbon atoms.

Mass of each mole of carbon atoms = 12 g

For 3 mole carbon atoms, it will be 12 × 3 = 36 grams

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Why do you need to combust benzoic acid before testing the "unknown" sample you are interested in? Why do you need to combust more than one sample of the "unknown" you are testing?

Answers

Various samples of the must be combusted in other to obtain a reliable result.

What is a bomb calorimeter?

The bomb calorimeter is used to obtain the energy of a sample. This is called the energy equivalent or the energy value of the sample.

Now, we know that the bomb calorimeter is calibrated by the use of benzoic acid hence it must be combusted first to obtain the basic energy value of the calorimeter.

Various samples of the must be combusted in other to obtain a reliable result.

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How many moles is 25g of ammonia (NH3)?

Answers

Explanation:

Ammonia has a formula mass of 17.031 g/mol, so the top blank is 1 and the bottom blank is 17.031

Calculating the product, we get the answer to be 1.5 mol

Which best describes two ways in which hydrogen is involved in photosynthesis?
O1-Hydrogen is stored in leaves of plants.
2-Hydrogen combines with carbon dioxide to make glucose.
O1-Hydrogen is stored in leaves of plants.
2- Hydrogen combines with oxygen to make water.
O 1-Hydrogen enters plants as a component of water.
2-Hydrogen combines with carbon dioxide to make glucose.
O1-Hydrogen enters plants as a component of water.
2- Hydrogen combines with oxygen to make carbon dioxide.

Answers

Answer:

1- Hydrogen enters plants as a component of water.

2-Hydrogen combines with carbon dioxide to make glucose.

Explanation:

Hydrogen enters the plant bonded with Oxygen as water (H2O).

The water molecule splits and the Hydrogen combines with carbon dioxide to make glucose.

Answer:

1 - Hydrogen enters plants as a component of water.

2 - Hydrogen combines with carbon dioxide to make glucose.

Explanation:

A piece of lithium is added to a beaker of water. Will the solution formed be acidic, alkaline or neutral?

Answers

Answer:

alkaline

Explanation:

Lithium reacts intensely with water, forming lithium hydroxide and highly flammable hydrogen. The colorless solution is highly alkalic.

According to the chemical reaction between lithium and water, lithium hydroxide is formed which is a basic substance.

What  are chemical reactions?

Chemical reactions are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.

There are several characteristics of chemical reactions like change in color, change in state , change in odor and change in composition . During chemical reaction there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are three types of chemical reactions:

1) inorganic reactions

2)organic reactions

3) biochemical reactions

During chemical reactions atoms are rearranged and changes are accompanied by an energy change as new substances are formed.

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Please select the word from the list that best fits the definition

Rock that is formed from the remains of older rocks and organisms

Super position
Radioactive dating
Sedimentary
Igneous
Metamorphic
Rock Cycle

Answers

Answer is Sedimentary Rock
Explained

Sedimentary rocks are formed from layers of eroded rocks, sand, silt, dead plants, and animal skeletons.

What is the molar volume of a gas at standard temperature and pressure? 1.0 L2.4 L11.2 L22.4 L

Answers

The molar volume of a gas at standard temperature and pressure is 22.4L

Molar volume of a gas at STP

Because the particles in gases are compressible, they can be driven to enclose one another when subjected to high pressure. As a result, the volume of the gas is smaller and there is less free space. The temperature has an impact on gas volume as well. A gas expands as a result of its molecules moving more quickly when it is heated. The comparison of gas volumes must be done at standard temperature and pressure due to the variation in gas volume caused by variations in pressure and temperature. The definition of standard temperature and pressure (STP) is (273.15K) and 1atm pressure. The volume of one mole of a gas at STP is its molar volume. A mole (6.02 x 10^23 typical particles) of any gas takes up 22.4L at STP.

using ideal gas law:-

PV =nRT

P = 1.00atm

n = 1.00 mol

R = 0.0821 L atm/mol  K

T = 273 K

V = ?

V = nRT/P

V = (1.00 x 0.081 x 273)/1.00

V = 22.4 L

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30 points!!!! Answer fast

EXPERIMENT: MAGNETISM Bar Magnet
1. Place the bar magnet on a table.
2. Put a sheet of glass or plastic over the magnet.
3. Sprinkle the iron filings over the sheet evenly.
4. On a separate paper, sketch the magnet. Show the lines made by the iron filings. Horseshoe Magnet
5. Place a horseshoe magnet on the table.
6. Put a sheet of glass or plastic over the magnet.
7. Sprinkle the iron filings over the sheet.
8. On a separate paper, sketch the magnet. Show the lines made by the iron filings. N Pole to N Pole
9. Place two bar magnets N pole to N pole with an inch between them.
10. Put a piece of glass or plastic over the magnets.
11. Sprinkle the iron filings over the glass or plastic.
12. On a separate paper sketch the magnets. Show the lines made by the iron filings. N Pole to S Pole
13. Turn one of the bar magnets around so the magnets are N pole to S pole with an inch between.
14. Sprinkle the iron filings over the glass or plastic.
15. On a separate paper sketch the magnets. Show the lines made by the iron filings.

From the information you have observed, determine the following:
What rule of magnetism is illustrated by the lines of the iron filings in Step 12?

What rule of magnetism is illustrated by the lines of the iron filings in Step 15?

Why was glass or plastic used to separate the filings from the magnets in the experiments?

Did the glass or plastic stop the passage of the magnetic lines of force?

Did the iron filings almost or completely bridge the open end of the horseshoe magnet?

Answers

The magnetism is either created inside a given element by passing some number of charges,Q across it or it is due to the interaction with a permanent magnet.

What is Magnetism ?

A physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects.

The magnet consists the characteristics of having an optimum amount of energy (P.E inside it) inside it.

As, the energy lines are either directed outwards from the north pole of the magnet, the south pole of the magnet consumes or absorbs the magnetic rays(energy lines) originated from the north pole of the magnet.

The right hand rule of magnetism is illustrated in the 12 point of the question.
As the right hand rule says that there will be a net amount of magnetic field around the conductor or any current carrying element in a specific direction.
Now, the current carrying direction of the wire is in perpendicular direction to that of the magnetic field created.

Point No.15 of the given question provides us the information regarding the idea of left hand rule of magnetism.
As, due to the contact between the  magnetic fields.

The fillings are separated from the magnets in the given experiment due to the fact there is a source for covering up the particles from getting too much exposed to the magnetic field. But, they are not able to stop the magnetic line of force,F from not penetrating its surface.

The iron fillings are present there to have a complete bridged form of connections between itself and the horseshoe magnet.
As the horseshoe magnet and the iron fillings are placed in a specified form of orientation inside the given space or region of interaction.

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How many moles of propane
react when 294 g of CO2 form?

C3H8 +502 → 3CO₂ + 4H₂O

Answers

2.23 moles of propane react when 294 g of CO₂ is formed .

What is moles ?

Moles is a unit which is equal to the molar mass of an element.

A reaction is given

C₃H₈ +50₂ → 3CO₂ + 4H₂O

Grams of CO₂ formed = 294 gm

In moles = 294 /44 = 6.68 moles.

Let x be the moles of C₃H₈ is x

Mole ratio of CO₂ to C₃H₈ = 3 : 1

so

6.68 /x = 3/1

x = 6.68 /3 = 2.23 moles

Therefore 2.23 moles of propane react when 294 g of CO₂ is formed .

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Question 10 of 10
Why are railroad tracks built with a flexible expansion and contraction joint?
OA. The tracks have a larger coefficient of linear expansion than the
ground beneath.
B. The two have equal coefficients of linear expansion.
C. The ground beneath has a larger coefficient of linear expansion
than the tracks.
OD. The tracks have a smaller coefficient of linear expansion than the
ground beneath.

Answers

Railroad tracks built with a flexible expansion and contraction joint because the tracks have a larger coefficient of linear expansion than the ground beneath. Hence, Correct opotion is option (A)

Where is linear expansion used?

The linear expansion of a solid under a change in temperature can be measured using Δℓ/ℓ = αΔT and has applications in the ways solids expand and contract in everyday life.

The strain that the object undergoes has implications in engineering when fitting objects among each other.


Hence, Railroad tracks built with a flexible expansion and contraction joint because the tracks have a larger coefficient of linear expansion than the ground beneath. Therefore, Correct opotion is option (A)

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what is electron
and the unit​

Answers

Electron is a negatively charged subatomic particle. It orbits the shells of an atom.

A 2. 75-l container filled with co2 gas at 25°c and 225 kpa pressure springs a leak. When the container is re-sealed, the pressure is 185 kpa and the temperature is 10°c. How many moles of gas were lost?.

Answers

The number of moles of gas lost is  0.0213 mol. It can be solved with the help of Ideal gas law.

What is Ideal law ?

According to this law, "the volume of a given amount of gas is directly proportional to the number on moles of gas, directly proportional to the temperature and inversely proportional to the pressure. i.e.

PV = nRT.

Where,

p = pressure V = volume (1.75 L = 1.75 x 10⁻³ m³)T =  absolute temperature n = number of molesR =  gas constant, 8.314 J*(mol-K)

Therefore, the number of moles is

n = PV / RT

State 1 :

T₁ = (25⁰ C = 25+273 = 298 K)p₁ = 225 kPa = 225 x 10³ N/m²

State 2 :

T₂ = 10 C = 283 Kp₂ = 185 kPa = 185 x 10³ N/m²

The loss in moles of gas from state 1 to state 2 is

Δn = V/R (P₁/T₁ - P₂/T₂ )

V/R = (1.75 x 10⁻³ m³)/(8.314 (N-m)/(mol-K) = 2.1049 x 10⁻⁴ (mol-m²-K)/N

p₁/T₁ = (225 x 10³)/298 = 755.0336 N/(m²-K)

p₂/T₂ = (185 x 10³)/283 = 653.7102 N/(m²-K)

Therefore,

Δn = (2.1049 x 10⁻⁴ (mol-m²-K)/N)*(755.0336 - 653.7102 N/(m²-K))

    = 0.0213 mol

Hence, The number of moles of gas lost is 0.0213 mol.

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A chemical change Group of answer choices occurs when powdered lemonade is stirred into water. occurs when methane gas is burned. occurs when water is vaporized. occurs when salt is dissolved in water. occurs when paper is shredded.

Answers

A Chemical change occurs when methane gas is burned.

What is Chemical change ?

A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed.

A chemical change occurs when matter undergoes a change to form a new substance with different chemical properties, and the reaction is usually not reversible.

In this case,burning of methane gas (CH₄) considered as chemical change.

Oxygen and methane are the reactants, while the new substance formed from the reaction are carbondioxide (CO₂) and water (H₂O) as ;

CH₄ + O₂  --->  CO₂ + H₂O

Hence, Chemical change occurs when methane gas is burned.

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What is the change in freezing
point, ATf, when the 0.195 m
aqueous solution of K2S dissolves
into 3 particles?

Answers

-1.09'C is the change in freezing point

“Freezing point depression” depends on the solvent and the molar concentration of the solute.

Sulfide is highly basic, consequently

K2S

completely and irreversibly hydrolyzes in water according to the following equation:

K2S+H2O→KOH+KSH

What is freezing?

Freezing, also known as solidification, is a phase transition where a liquid turns into a solid when its temperature is lowered below its freezing point.

the temperature at which a liquid solidifies specifically : the temperature at which the liquid and solid states of the substance are in equilibrium at atmospheric pressure : melting point the freezing point of water is 0° Celsius or 32° Fahrenheit.

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Answer:1.0881

Explanation:

why do crystals form during crystallisation

Answers

Answer: Crystallization is a technique which chemists use to purify solid compounds. Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. The process is based on the principles of solubility: compounds (solutes) tend to be more soluble in hot liquids (solvents) than they are in cold liquids. If a saturated hot solution is allowed to cool, the solute is no longer soluble in the solvent and forms crystals of pure compound. Impurities are excluded from the growing crystals and the pure solid crystals can be separated from the dissolved impurities by filtration.
For an example the salt we get from seawater can have many impurities in it. Hence, the process of crystallization is in use to remove these impurities.

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┗━━━━━━━┛

As the solution cools, the solvent can no longer hold all of the solute molecules, and they begin to leave the solution and form solid crystals.

During this cooling, each solute molecule in turn approaches a growing crystal and rests on the crystal surface.

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A compound has an empirical formula C₂H4S.
What is its molecular formula, if its molar
mass is 168 g/mol?

Answers

The atomic mass of carbon is 12.011 g/mol.The atomic mass of hydrogen is 1.00794 g/mol.The atomic mass of sulfur is 32.06 g/mol.

This means that the molar mass of [tex]\text{C}_{2}\text{H}_{4}\text{S}[/tex] is

[tex]2(12.011)+4(1.00794)+32.06=60.11376[/tex]

Dividing this by the given molar mass, we get [tex]\frac{168}{60.11376} \approx 3[/tex]

So, the molecular formula is about [tex]\boxed{\text{C}_{6}\text{H}_{12}\text{S}_{3}}[/tex]

the difference between cow stomach and human stomach​

Answers

The primary distinction between the digestive systems of cows and humans is that the former uses a foregut fermenter while the latter uses a straightforward monogastric digestion. The types of teeth, mouths, stomachs, guts, and digestive enzymes released by the gut also vary between the two digestive systems. Cows and humans have different digestive systems because they have evolved two different sorts of dietary patterns based on their capacities. The primary distinctions between the digestive systems of cows and humans are in the types of teeth, mouths, stomachs, and intestines, as well as the enzymes released.

Answer:

The main difference between cow and human digestive system is that cow exhibits a foregut fermenter digestion whereas human exhibits a simple monogastric digestion. Both digestive systems also differ by the type of teeth, mouth, stomach, gut, and digestive enzymes secreted by the gut.

Explanation:

Other Questions
Which sentence best avoids bias? a. if there is an engineer on staff, he likely knows me. b. every veterans day, i support the men overseas. c. as a therapist, i focused primarily on men's issues. d. the average nurse is in her element during a crisis, Read the following two arguments about school uniforms then answer the question below.Carl: "Imagine a world without color and free choice. That will be the world we live in if we are forced to wear uniforms. The uniforms will be ugly. They will make you look like a nerd, because uniforms are what all nerds wear. Don't be one of the fools that think this is a good idea, because everyone knows we do not need uniforms.Beth: "Uniforms are a great idea for our school. Studies have shown that schools that adopted a uniform saw a 10% increase in grades. I know Carl says that the uniforms are ugly, however as a guy, what does he know about fashion? The uniforms will not be ugly, because uniforms are not ugly."Who uses circular reasoning in their argument?A. Beth and CarlB. BethC. Neither Beth nor CarlD. CarlReset Selection Pls help quickly!!!Find the coordinates of the vertex of the graph of the function. y=3x^2-4x+3 9. (04.03 LC)Empareje el artista con la descripcin. Match the artist with the description. (4 points)Los murales de este expresionista mexicano se encuentran en Estados Unidos y en Mxico. Sua. Franck de las Mercedesmural de Hombre en fuego es un autorretrato del artista.0. Jos Clemente Orozco2. Pas por una etapa de gris, azul y rojo. Usaba los colores montonos y las formas geomtricaspara hacer comentarios de todo lo que le rodeaba en la sociedad.c. Pablo Picasso3. El arte pop y el arte abstracto manifiestan las influencias del arte abstracto de Nueva York y losd. Joaqun Sorollaartistas de grafiti. Sus obras del arte pop reflejan su afinidad por el artista Andy Warhol.Sus imgenes livianas parecen una foto rpida. Su meta era capturar un momento en la luz como sifuera una foto rpida. El artista fue inspirado por el impresionismo. The election of 1828 was unique because it was the first presidential election a) in which the candidates campaigned for votes b) that ended in a tie between two candidates c) in which the candidate with the greatest number of votes lost the election d) that ended with the House of Representatives selecting the president HELP ME PLEASE I BEG View the graph of sun hours in a city.Average Monthly Sun Hours in Addis Ababa, Ethiopia300 hrs150 hrs0 hrsJanFebMar Apr MayJul Aug SepOct NovDecJunMonthIt can be predicted that in the following year, this city can expect the hours of sunshine to significantly increase afterwhich month?JanuaryMayJuly September Which expression is equal to the polynomialbelow?2x + 5x38x - 20Ox(2x + 5) + 4(2x - 5)Ox(2x + 5)- 4(2x + 5)Ox(2x-5)-4(2x - 5)Ox(2x + 5) + 4(2x + 5) 1. What type of evidence must molecular clocks be compared against to estimate the split from a common ancestor? Look at the text below and correct the punctuation mistakes. There are 3 in total. Farmers across britain are being paid to rewild parts of their land in an effort to give local wildlife a better future. But what is rewilding. Its the process of letting land return to its natural state so that animals such as foxes hedgehogs and badgers can live in newly formed habitats. An immunocompromised host is one who shows a decrease in ______. How many times Ahmed Shah Abdali invaded India? What percent of organic matter sink into deeper water where it may be removed effectively from the atmosphere? - How many grams are in 1.4 x 105 atoms of calcium? The length of a rectangle is units greater than twice its width. If its width is w, which expression gives the perimeter of the rectangle in terms of w?A. 2(w) + wB. w + wC. 3w + D. 6w + 5 What happens to earnings in a cooperative? They are used to pay middlemen for services. They are shared with member owners.They are used to buy more stock for members. They are shared with customers through dividends. 1. The country is fighting to __________ its territorial integrity.A. preserve B. serve C. prepare D. exert How to subtract negative number from 1 The traditional timing for diagnosing specific learning disorders has been after a child displays difficulty with a particular school subject that makes his or her achievement scores fall at least two years below IQ. What does the textbook say about this policy how both e-learning and classroom learning are one of the quickest learning strategies? An expansionist strategy in regards to capacity is best characterized by Group of answer choices making small, frequent jumps in capacity expansions. using capacity as a competitive weapon in order to compete on cost. willing to use short-term options (e.g., overtime, subcontracting) to meet the demand that exceeds capacity. reducing the risks of over-optimistic demand forecasts.