URGENT!
(a) A gas' pressure is 765 torr at 296k. At what temperature will the pressure be 560. torr?

(b) Which gas law is being represented above?
Boyle's Law, Charle's Law, Gay-Lussac's Law?

Answer !BOTH! questions.

Answer:

Class M

Explanation:

Answer:

En el grupo de los no metales se incluyen los halógenos​ (flúor, cloro, bromo, yodo, astato y téneso), que tienen 7 electrones en su última capa de valencia y los gases nobles (helio, neón, argón, kriptón, xenón, radón), que tienen 8 electrones en su última capa (excepto el helio, que tiene 2).

Explanation:

halógenos

Answer:

1,4

Explanation:

The correct option is (E) It does not decompose when protected from moisture .The chemical property of aspirin is that it does not decompose when protected from moisture.

Aspirin is an organic acid, with the chemical name acetylsalicylic acid. It has a wide range of applications, including being used as a pain reliever, fever reducer, and anti-inflammatory drug. It is also used to reduce the risk of heart attack and stroke.

Aspirin breaks down quickly in solutions of ammonium acetate or the acetates, carbonates, citrates, or hydroxides of the alkali metals. In dry air, it is stable, but when it comes into contact with moisture, it breaks down into acetic and salicylic acids. In alkali solutions, acetate and salicylate hydrolyze quickly, and the clear solutions that result may only include these two compounds.

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The whale uses the oxygen of about 90 % in the each breath, which is much more than the one human being uses in the single breath.

The human being breath around the 10 to 20 time per minute. the oxygen used by the the human being in single breath is about 5 % of the oxygen. the whale uses the 90 % of the oxygen in the single breath. which is in comparison with the human being is much more higher . whale have lungs as the human have. the whales lungs can store the oxygen in the protein called as the myoglobin.

Thus, 90 % of the oxygen are used by the whale in a single breathe.

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Letter A because the temperature of a substance A increases "Twice as much".

Answer: a-f

b-t

c-t

Explanation:

Answer: 50 kg

Explanation: formula is

m= p/v

m=800 kg m/s : 16m/s

m= 50kg

idk tho hope this helps

Carrier proteins serve many purposes in the purposes in the attempt to move molecules across a plasma membrane.

Carrier proteins are proteins which are found n the surfaces of cell membranes which serve the function of transporting molecules across the cell membrane barrier.

The carrier proteins transport various molecules across the cell membrane.

Carrier proteins transport such molecules as sugars, proteins, ions, lipids across the membrane.

Some carrier proteins expend energy in the form of ATP when they transport molecules across the cell membrane.

Some use the concentration gradient of cells to transport molecules across the cell membrane.

The carrier proteins which expend energy to transport molecules are involved in active transport.

The carrier proteins that do not expend energy are involved in passive transport.

In conclusion, carrier proteins are essential in the transport of molecules across the plasma membrane.

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Among the given options, the amino acid that is most likely to contact the membrane in an integral membrane protein is Ala (alanine). The correct option is d).

Ala is a nonpolar amino acid with a small side chain consisting of a methyl group. Its nonpolar nature enables it to interact favorably with the hydrophobic lipid bilayer of the cell membrane.

Integral membrane proteins are embedded within the lipid bilayer, with their transmembrane regions spanning the hydrophobic core of the membrane. These regions typically consist of hydrophobic amino acids, such as Ala, that can anchor the protein within the membrane.

Ala's small size allows it to fit snugly within the hydrophobic interior of the lipid bilayer, where it can participate in hydrophobic interactions with the lipid tails.

On the other hand, Asn (asparagine), Gln (glutamine), Glu (glutamate), and Asp (aspartate) are polar amino acids. They possess hydrophilic properties and tend to favor interactions with aqueous environments rather than the hydrophobic lipid bilayer.

While these polar amino acids may be present in integral membrane proteins, they are more likely to be found in regions that face the interior or exterior of the protein, where they can participate in protein-protein interactions or contribute to the protein's overall structure and function.

Therefore, the amino acid that would most likely contact the membrane in an integral membrane protein is Ala (alanine). The correct option is d).

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For a solution containing a non-volatile solute, the proper formula to describe Raoult's law is Psolute = Posoulte. Xsolute

According to Raoult's law, the vapour pressure of a non-volatile solute solution is equal to the mole fraction of the pure solvent's vapour pressure at that temperature.

According to Raoult's law, a solvent's partial vapour pressure in a solution (or mixture) is equal to or the same as the pure solvent's vapour pressure times the mole fraction present in the solution.

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1.42x10^24 molecules

40.0 grams NH3 (6.02x10^23/17.0 grams NH3)= 1.42x10^24 molecules

Answer:

It's Mass

Explanation: I took the quiz

Have a good day!

Mass is the amount of matter in an object. Therefore, option C is correct.

Mass can be defined as an intrinsic property of a body. mass can be described as the quantity of matter in a body. Different atoms and different particles with the same amount of matter have nonetheless different masses.

Mass can be experimentally measured by the body's inertia, meaning the resistance to acceleration when a net force is applied. The mass determines the strength of its gravitational attraction to other bodies.

The SI base unit of measurement of mass is the kilogram (kg) and it is not the same as weight. Mass is generally determined by measuring the weight using a spring scale, rather than a balance scale and comparing it to known masses.

An object on the Moon will weigh less than it does on Earth due to the lower gravity but still have the same mass. Weight can be defined as a force, while mass is the property that determines the strength of this force.

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At constant temperature, if the volume of the unknown gas drops to the given value, the pressure increases to 20.0atm.

Given the data in the question;

Final pressure of the unknown gas; \(P_2 = \ ?\)

Boyle's law simply states that the volume V of any given quantity of gas is inversely proportional to its pressure P as long as temperature remains constant.

Boyle's law is expressed as;

\(P_1V_1 = P_2V_2\)

Where \(P_1\) is Initial Pressure, \(V_1\) Initial volume, \(P_2\) is Final Pressure and \(V_2\) is Final volume.

We substitute our given values into the expression above to determine the final pressure.

\(P_1V_1 = P_2V_2\\\\P_2 = \frac{P_1*V_1}{V_2} \\\\P_2 = \frac{2atm\ * 7L}{0.7L} \\\\P_2 = \frac{2atm\ * 7}{0.7}\\\\P_2 = \frac{14atm}{0.7}\\\\P_2 = 20.0atm\)

Therefore, at constant temperature, if the volume of the unknown gas drops to the given value, the pressure increases to 20.0atm.

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Answer: often differences in air temperature and wind on opposite sides of it.

in the classical free electron model, the neglect of electron-ion interaction is referred to as the free electron approximation. The correct option is (ii) Only.

This approximation assumes that the interaction between electrons and ions can be ignored, treating the electrons as free particles moving in a periodic potential without any significant influence from the ions. The independent electron approximation, on the other hand, assumes that the behavior of each electron can be considered independently of the others. The Drude electron-ion approximation incorporates electron-ion interactions and is not part of the classical free electron model. Therefore, the correct option is (ii) Only.

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Answer:

2 g/cm³

Explanation:

Answer:

180

Explanation:

proton = 80

electron = 80

neutron = 100

Note:- the atomic number of an element is the number of protons/electrons in the atomic shell

(protons = electrons)

Mass number = number of protons/electrons + number of neutrons

MN= NP+ NN

MN = 80 + 100

MN= 180

I HOPE THIS HELPS

pasagot nga po please need lang po talaga.

Answer:The biuret

Explanation:

The main difference between both models is that the Bohr model depicts all subatomic particles, but the Lewis dot diagram only depicts the symbol and valence electrons.

Lewis Structure is a simplified representation of a molecule's valence shell electrons. It's used to depict how electrons in a molecule are distributed around specific atoms.

Hence the Bohr model depicts all subatomic particles, but the Lewis dot diagram only depicts the symbol and valence electrons.

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The first two chemical equations are reversible while the other two are irreversible.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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The natural frequency of the force sensor is determined by the mass and spring constant, while the damping ratio indicates the type of damping present in the system (underdamped, critically damped, or overdamped).

The mass-spring-damper system represents the force sensor, with mass m, damping coefficient c, and spring constant k. To determine the natural frequency of the system, we use the equation:

ω_n = √(k/m)

where ω_n represents the natural frequency. The natural frequency is determined solely by the mass and the spring constant, indicating how quickly the system oscillates without any external forces.

To find the damping ratio, we use the equation:

ζ = c / (2√(mk))

where ζ represents the damping ratio. The damping ratio determines the rate of decay of the oscillations, indicating how quickly the system returns to its equilibrium position after being disturbed.

If the damping ratio ζ is less than 1, the system is considered underdamped. If ζ equals 1, it is critically damped, and if ζ is greater than 1, the system is overdamped.

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Option  D. Chemistry helps them learn the parts of the body is the reason need to understand chemistry.

Chemistry exists as the branch of science that contracts with the properties, composition, and arrangement of elements and compounds, how they can vary, and the energy that exists released or absorbed when they change.

Nurses must utilize organic chemistry to determine how the bodies of their patients metabolized glucose, and how the body responds to it. On a more complex level, nurses must cause conclusions based on their knowledge of organic chemistry to help protect the lives of their patients.

Hence, Option  D. Chemistry helps them learn the parts of the body is the reason need to understand chemistry.

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The only unpaired dural sinus is the Superior Sagittal Sinus.

The dural sinuses are venous channels located between the layers of the dura mater, the outermost membrane covering the brain. They collect deoxygenated blood and cerebrospinal fluid from the brain and drain it back into the circulatory system.

Typically, the dural sinuses are paired, meaning there are two sinuses on each side of the brain. However, there is one unpaired dural sinus called the Superior Sagittal Sinus. It is located in the midline of the brain, running along the superior margin of the falx cerebri, which is a fold of the dura mater that separates the two cerebral hemispheres.

The Superior Sagittal Sinus receives blood from the cerebral veins and drains into the confluence of sinuses at the back of the skull.

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The only unpaired dural sinus is the superior sagittal sinus. The dura mater, the brain's outermost covering, contains layers that are home to the venous channels known as dural sinuses. Hence option B is correct.

They are essential in the process of returning deoxygenated blood from the brain to the systemic circulation.

Superior sagittal sinus: Located at the superior edge of the falx cerebri, a fold of dura mater that divides the two cerebral hemispheres, the superior sagittal sinus is an unpaired dural sinus. It draws blood from different cerebral veins and empties into a group of sinuses.

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Your question is incomplete, most probably the complete question is :

Of the following, the only unpaired dural sinus is the

A) cavernous sinus.

B) superior sagittal sinus.

C) transverse sinus.

D) carotid sinus.

The swamps, marine sediments covered the peat

What is carboniferous?
From the end of the Devonian Period, 358.9 million years ago (Mya), to the start of a Permian Period, 298.9 million years ago, the Carboniferous is a Paleozoic geologic period and system that lasts 60 million years. The term Carboniferous, which derives from the Latin carb ("coal") and fer ("bear, carry"), means "coal-bearing" and alludes to the numerous coal beds that formed globally at that time. Geologists William Conybeare as well as William Phillips first used the term "system" in 1822 after researching the British rock succession. In North America, the earlier Mississippian as well as the later Pennsylvanian geological eras of the Carboniferous are frequently treated as separate geological periods.

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The type of light that can be broken into its individual wavelengths by a prism is Ultraviolet. The correct answer is Option B.

Ultraviolet (UV) light is a form of electromagnetic radiation that is invisible to the eye. Ultraviolet radiation has a wavelength that is shorter than visible light but longer than X-rays. This is the type of light that can be broken down into its individual wavelengths by a prism.

A prism is a piece of glass or other transparent material with a specific shape that can split white light into its component colors. The process of bending and separating light is known as dispersion. The index of refraction of the glass, as well as the angle of incidence, determines the amount of refraction that occurs.

In conclusion, ultraviolet light is the type of light that can be broken down into its individual wavelengths by a prism.

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