CAN SOMEONE HELP WITH THIS QUESTION?

Describe how collecting pressure and temperature data in a sealed rigid container could be used to determine absolute zero?

Answer:

1. chlorine ion 2. methylene

Explanation:

I think #2 is right. i'm not sure.

Answer:

B. the number of protons added to the number of neutrons in the nucleus.

Explanation:

Sana makatulong

Answer:

Voltage is the measure of electric potential energy per unit charge, current is the flow of electric charge through a circuit, and resistance is the property of a material that opposes the flow of electric current.

Ohm's Law relates these three concepts by stating that current is directly proportional to voltage and inversely proportional to resistance.

Hope this helps!

Answer:

0.00000000910938;

9.109380 * 10^-9

Explanation:

Given the question :

Given :

1.602176*10-¹⁹/ 1.758820*10¹¹

The numbers are expressed in the form:

A * 10^b ; Where;

A = Coefficient ; 10 = base ; b = exponent

The Coefficients can be divided directly as :

1.602176 / 1.758820 = 0.9109380

Using the division law of indices, the exponents acn be worked out as follows since they have the same base :

10^-19 / 10^-11 = 10^(-19 - (-11)) = 10^(-19+11) = 10^-8

Thus, we have ;

0.9109380 × 10^-8

In standard form:

9.109380 * 10^-9

In Expanded form:

10^-8 = 0.00000001

0.9109380 * 0.00000001 = 0.00000000910938

0.000000009 +

0.0000000001 +

0.00000000000 +

0.000000000009 +

0.0000000000003 +

0.00000000000008

__________________

0.00000000910938

___________________

Answer:

Electrons

Explanation:

Assuming you are talking about the nucleus of an atom, the particles surrounding the nucleus are electrons.

Atoms consist of three subatomic particles: protons, neutrons, and electrons. Protons and neutrons are located within the nucleus, whereas the electrons exist outside of it.

The partial pressure of hydrogen in the collected gas sample is 733.0 mm Hg (calculated by subtracting the partial pressure of water, 17.0 mm Hg, from the total atmospheric pressure, 750.0 mm Hg).

When a gas is collected over water, the presence of water vapor affects the total pressure observed. In this case, the total atmospheric pressure is given as 750.0 mm Hg, and the partial pressure of water vapor at 19.5°C is 17.0 mm Hg.

To determine the partial pressure of hydrogen, we need to subtract the partial pressure of water vapor from the total atmospheric pressure. Partial pressure refers to the pressure exerted by an individual gas component in a mixture. In this scenario, the collected gas is primarily hydrogen, with water vapor being the other component.

By subtracting the partial pressure of water vapor (17.0 mm Hg) from the total atmospheric pressure (750.0 mm Hg), we can find the partial pressure of hydrogen:

Partial pressure of hydrogen = Total atmospheric pressure - Partial pressure of water vapor

Partial pressure of hydrogen = 750.0 mm Hg - 17.0 mm Hg

Partial pressure of hydrogen = 733.0 mm Hg

Therefore, the partial pressure of hydrogen in the collected gas sample is 733.0 mm Hg.

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Answer:

Common causes of hypoxemia include:

Anemia.

ARDS (Acute respiratory distress syndrome)

Asthma.

Congenital heart defects in children.

Congenital heart disease in adults.

COPD (chronic obstructive pulmonary disease) exacerbation — worsening of symptoms.

Emphysema.

Interstitial lung disease

and many more.....

Answer:

heterozygous

Answer:

4-oxopentanoic acid.

Explanation:

In this case, we must remember that the Grignard reaction is a reaction in which carbanions are produced. Carboanions have the ability to react with CO2 to generate a new C-C bond and a carboxylate ion. Finally, the acid medium will protonate the carboxylate to produce the carboxylic acid group.

The molecules that can follow the mechanism described above are the molecules: p-methylbenzoic acid, cyclopentane carboxylic acid and 3-methylbutanoic acid. (See figure 1)

In the case of 4-oxopentanoic acid, the possible carbanion will attack the carbonyl group to generate a cyclic structure and an alcohol group (1-methylcyclopropan-1-ol). Therefore, this molecule cannot be produced by this reaction. (See figure 2)

Answer:

(B)

Explanation:

edg 2020

The four seasons in earth is originating from the earth's revolution around the sun. Therefore, the most suitable model for Amanda is  Four earth models, each with a different tilt to represent the earth’s position relative to the sun, lined up in order of season.

Seasons in earth is originating from the difference in the distance from the sun over each time period. Hence, revolution of earth around sun make these seasons.

The time period at which earth comes closer to sun more hot will be earth's surface and we experience summer season. When we far from sun winter season occurs.

Therefore, different season are coming based on the distance of earth from sun at each revolution point. This is also affected by the tilt of earth's in its own axis.

Hence, different earth models with different distance from sun is most suitable model here for Amanda. Thus option B is correct.

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hydrogen bonds between molecules are overcome when water boils.

Because of the relative strength of these hydrogen bonds, water is a liquid at ambient temperature. Hydrogen bonds must be broken in order to convert water from liquid to vapour (i.e., boil it).

The bonds that rupture as water boils are known as hydrogen bonds. This kind of link is substantially weaker than a covalent bond and is referred to as an intermolecular force of attraction. The molecules' increased mobility as a result of the kinetic energy addition causes this bond breaking.

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Answer:

BOD produced per 1000kg of milk processed = (1400mg/I x 240m3) / 150000kg = 0.192mg/I

Population equivalent = (0.192mg/I x 75g) / 5 = 0.576g

Explanation:

Answer:

The reaction N2 + 3H2 → 2NH3 is an exothermic reaction, which means that it releases heat. The amount of energy released is called the enthalpy of reaction, and it is typically measured in kilojoules per mole (kJ/mol). The enthalpy of reaction for the Haber-Bosch process, which is the industrial process used to produce ammonia, is -46.2 kJ/mol. This means that for every mole of ammonia produced, 46.2 kJ of heat is released.

The energy released during the Haber-Bosch process is used to heat the reactants and to drive the reaction forward. The reaction is exothermic because the bonds in the products (NH3) are stronger than the bonds in the reactants (N2 and H2). When the reactants are combined, the energy released when the bonds in the products form is greater than the energy required to break the bonds in the reactants. This excess energy is released as heat.

The Haber-Bosch process is a very important industrial process, and it is used to produce ammonia on a large scale. Ammonia is used in a variety of products, including fertilizers, explosives, and plastics. The exothermic nature of the Haber-Bosch process makes it a very efficient way to produce ammonia.

Explanation:

Yes, the benefits of using nuclear energy outweigh the risks as  nuclear energy has help to solve electricity issues in the United states and other countries.

The benefits of nuclear energy  is that it is one of the cleanest forms of energy. Its carbon footprint is also among the smallest. It is among the solutions to the energy gap. It is crucial to how we respond to greenhouse gas emissions and climate change.

Note that A clean energy source with no emissions is nuclear. It produces energy by fission, which is the splitting of uranium atoms to release energy. With no toxic byproducts created from fossil fuels, the heat from fission is used to create steam that powers a turbine and produces electricity.

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The concept ideal gas equation is used here to determine the volume of the carbondioxide. Combustion reactions are generally highly exothermic reactions. The volume of CO₂ is

A combustion is a chemical reaction in which a fuel undergoes oxidation as a result of the reaction with an oxidizing agent which causes the release of energy in the form of heat.

15.0 °C = 288 K

The ideal gas equation is:

PV = nRT

V = nRT / P

V = 354 × 0.0821 × 288 / 0.995 = 8412.3 L

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While having experienced polar explorers at the Catlin Arctic Survey would have been beneficial in many ways, it would also have been important for them to work collaboratively with the rest of the team.

Advantages:

Experienced polar explorers would have had a wealth of knowledge and skills, such as how to travel over the ice, how to set up camp, and how to handle emergencies.

Experienced polar explorers would have been able to make informed decisions about the best routes to take and the most efficient ways to travel. This could have helped to save time and energy.

Disadvantages:

Experienced polar explorers may have been set in their ways and resistant to new ideas. This could have hindered the team's ability to adapt to changing circumstances and make the most of new opportunities.

Experienced polar explorers may have been overconfident and taken risks that the rest of the team was not comfortable with. This could have put everyone's safety at risk.

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Answer:

Explanation:Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?

The concept half life is used here to determine the mass of 'A' remaining after 0.731 min. The rate constant of a reaction is defined as the rate of the reaction when the molar concentration of each of the reactants is unity. The mass of A remaining is 5.163 g.

The half life period of a reaction is defined as the time in which the concentration of a reactant is reduced to half of its initial concentration. The expression for half life period of a first order reaction is:

\(t _{1} /_{2} = 0.693 / k\)

k - rate constant

k = 0.693 / 0.0459 = 15.098 s

Divide by 60 to convert half life into minutes.

15.098 s = 0.251 minutes

The number of half lives that have past is:

0.731 min / 0.251 min = 2.912 ≈ 3

Initial mass / number of half lives = 15.49 / 3 = 5.163 g

Thus the mass of A remaining after 0.731 min is 5.163 g.

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3122.0 mL of gas are present at 120.0 °C.

The volume of a gas is the amount of three-dimensional space it occupies. The volume of a gas is directly proportional to the temperature if the pressure is held constant.The force exerted perpendicularly to an object's surface in relation to its area is known as pressure. The average kinetic energy of the molecules that make up a system is measured by temperature.This means that the volume at 120°C will be the same multiple of the volume at 27°C. To calculate the multiple, we divide the final temperature by the initial temperature:

\(\frac{120.0\°C}{27.0\°C} = 4.44\)

Therefore, the volume at 120°C will be 4.44 times the volume of 700.0 mL at 27°C.

Volume at 120°C = 4.44 x 700.0 mL = 3122.0 mL

Therefore ,The volume of gas at 120.0 °C is 3122.0mL

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The lower bond energy of the silicanes make them more reactive than the alkanes.

We know that the members of group four has the ability to catenate and this is a property that characterizes all the elements that we can find in the group. However the extent to which the members of the group can be able to catenate is what we use to determine the stability of the bonds.

The alkanes are composed of the bonds that exist between carbon and hydrogen and the alkanes can be able to form very long chains and this can be used to explain the fact that you can be able to find the alkanes in various kinds of applications.

However, the bond energy of the silicanes is less than that of the alkanes hence they tend to be more reactive  then the alkanes.

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Answer:

evaporation.

evaporation is the process by which water changes from liquid to a gas or vapor.

Answer: 0.0827

Hope This Will Help You And This Should Be The Correct One.

Answer:a) 2C4H10 + 13O2 —> 8CO2 + 10H2O. Oxidation reaction

b) 8 (4 moles CO2 per mole butane)

Explanation:

could be written C4H10 + 6 1/2 O2 —> 4CO2 + 5H2O

Answer:

To convert joules to calories, you can use the conversion factor:

1 calorie = 4.184 joules

To find out how many calories are in 4,180 joules, divide the given value by the conversion factor:

4,180 joules / 4.184 joules per calorie = 0.9 calories (approximately)

Therefore, there are approximately 0.9 calories in 4,180 joules.

The change in free energy is 19.3kJ.

Now we know that the equation of the reaction is; H₂(g) + Cl₂(g)⇔2HCI(g).

Thus we have that Kp can only be obtained at equilibrium thus we ste up the ICE table as shown;

pH2 = 1 atm

pCl2 = 1 atm

pHCl =  16.30 mm Hg or 0.02 atm

        H₂(g) + Cl₂(g) ⇔ 2HCI(g)

I        1           1                0

C     -x           -x               +2x

E     1 - x         1 -x            2x

When 2x = 0.02

x = 0.01

pH2 =  1 - 0.01

pCl2 = 1 - 0.01

pHCl = 0.02

Kp = (0.02)^2/(0.99)^2

Kp = 4.1 * 10^-4

ΔG = -RT lnKp

ΔG = - (8.314 * 298.15 * ln  4.1 * 10^-4)

= 19.3kJ

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Answer:

humans have a huge impact on all spheres. if you negatively impact the spheres, such as burning fossil fuels, it'll pollute the atmosphere.

Explanation:

All four spheres of Earth are susceptible to human influence. Burning fossil fuels can cause pollution to be released into the atmosphere. Garbage accumulated by humans in landfills has an impact on the geosphere. Human waste enters waterways and has an effect on the hydrosphere.

Different definitions of the geosphere have conflicting uses. It can be used to refer to the atmosphere, lithosphere, hydrosphere, and cryosphere as a whole. Different mass and/or energy flows can be exchanged between the various geosphere collectives.

Land erosion and soil movement currently result from human activity more frequently than from any natural mechanism. Human-caused air and water pollution has a negative impact on the environment, rivers, and lakes, harming both other animals and people's health.

According to some scientists, humans have their own sphere, the "anthrosphere." But for the purposes of this module, people will also be considered a component of the biosphere.

Thus, Garbage accumulated by humans in landfills has an impact on the geosphere.

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The attraction between the particles present in an atom to be held together firmly is called intermolecular force.

The forces are mentioned in the question are the forces by which the different elements are joined together while making the compound.

When things are arranged in the smaller to bigger value, the arrangement is referred to as increasing order.

The correct increasing order of the forces are as follows:-

Ion-ion forces <Ion-dipole forces <Hydrogen bonding< Dipole-dipole forces <London dispersion forces

Hence, these are answers to the question.

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Answer 1:

During the summer months in the northern hemisphere (where the United States is located), Earth is in position C, which is when the northern hemisphere is tilted towards the sun.

Answer 2:

The highest tide occurs during the full moon phase, which is represented by position C in the diagram.

Answer 3:

A star that has a luminosity of 10^-2 is likely a red dwarf.

Answer 4:

Telescopes that observe short-wavelength radiation, such as X-rays and gamma rays, do not need to be placed in orbit around Earth because these wavelengths are absorbed by the atmosphere. Therefore, telescopes that observe these wavelengths are typically placed in space, outside of Earth's atmosphere.

Answer 5:

The student is likely demonstrating the relationship between the Earth and the Sun's gravitational pull. The ball represents the Sun, and the string represents the gravitational force pulling the Earth towards the Sun. The demonstration shows how the Earth orbits the Sun due to this gravitational force.

Gravitational force is described as a force that exists between any two objects in the universe that have mass.

It is the force that causes objects with mass to be attracted to each other. The magnitude of the gravitational force between two objects depends on their masses and the distance between them.

Along with the electromagnetic force, the strong nuclear force, and the weak nuclear force, gravity is one of the four fundamental forces of the universe.

Sir Isaac Newton initially introduced it in his law of universal gravitation, and Albert Einstein later elaborated on it in his theory of general relativity.

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Answer:

Co2

Explanation

An organic compound includes Carbon and Hydrogen both bonded