Will a change in temperature affect the pressure that is measured using a gauge? If so, use kinetic molecular theory to explain how pressure and temperature are related.

Answer:

20 atoms

Explanation:

There are 4 in H2O2 because of 2 hydrogens and 2 oxygens.

Then, multiply by 5 because the coefficient is 5, therefore there are 5 H2O2 molecules.

5 x 4 = 20

The total number of atoms in the chemical formula 5H₂O₂ is 20.

The term chemical formula is defined as a way of presenting information about the chemical proportions of atoms that represent a particular chemical compound or molecule, applying chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas.

There are three types of chemical formula that are structural, molecular and empirical chemical formula.

There are four atoms in H₂O₂ because of two atoms of hydrogen and two atoms of oxygen. Then, multiply by five because the coefficient is five, therefore there are 5 H₂O₂ molecules.We get,

= 5 x 4

= 20

Thus, The total number of atoms in the chemical formula 5H₂O₂ is 20.

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Materials generally become warmer when they are "absorbed" by light, this statement is more detailed. So, the correct answer is "absorbed by them."

Explanation: When a material absorbs light, it receives energy from the light, which leads to an increase in temperature. When light is absorbed by a material, the energy of the light is transformed into internal energy in the material. The temperature of a material can increase as a result of this energy absorption.

This is due to the fact that the increased internal energy of the molecules in the material causes them to vibrate more quickly and hence results in a temperature rise.

The light reflects or transmits when it passes through the material. When light reflects off a surface, it bounces back in the opposite direction. Transmitted light travels through a material without being absorbed by it.

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The initial rate for a reaction that starts with 0.55 M of reagent A and 0.80 M of reagents B and C is \(1.152*10^{-3}\) M/s.

Given the reaction equation: a b c= d e

Therefore, according to the above data, we have:

[A]₀ = 0.40 M,

[B]₀ = 0.40 M,

[C]₀ = 0.40 M,

Initial rate = \(1.2*10^{-4}\)   M/s

[A]₀ = 0.40 M,

[B]₀ = 0.40 M,

[C]₀ = 1.20 M,

Initial rate =   \(3.6*10^{-4}\) M/s

[A]₀ = 0.80 M,

[B]₀ = 0.40 M,

[C]₀ = 0.40 M,

Initial rate = \(4.8*10^{-4}\) M/s

[A]₀ = 0.80 M,

[B]₀ = 0.80 M,

[C]₀ = 0.40 M,

Initial rate = \(4.8*10^{-4}\) M/s

Part A: The reaction is first order in reactant A, second order in reactants B and C.

Part B: The rate law for the reaction is: \(Rate = k[A][B]^{2}[C]\)

Part C: The value of the rate constant (k) is calculated by dividing the rate of reaction by the initial concentrations of the reactants. By taking the average of trials 1, 2, 3 and 4, we get:

Initial rate = ( \(1.2*10^{-4}\)  +   \(3.6*10^{-4}\) + \(4.8*10^{-4}\)  + \(4.8*10^{-4}\) )/4 = \(3.6*10^{-4}\)M/s

Substituting the given values into the rate law, we get:

\(3.6*10^{-4}\) M/s = k(0.40 M)(0.40 M)²(0.40 M)

k = \(3.6*10^{-4}\) / (0.40 M)(0.40 M)²(0.40 M)

k = 5.625×10⁻³ M⁻²s⁻¹

Part D: Determine the initial rate for a reaction that starts with 0.55 M of reagent A and 0.80 M of reagents B and C.

Substituting the given values into the rate law, we get:

\( Initial Rate = k[A][B]^{2}[C]\)

Initial rate = (\(5.624*10^{-3}\) M⁻²s⁻¹)(0.55 M)(0.80 M)²(0.80 M)

Initial rate =   \(1.152*10^{-3}\) M/s

Therefore, the initial rate for a reaction that starts with 0.55 M of reagent A and 0.80 M of reagents B and C is \(1.152*10^{-3}\) M/s.

The initial rate for a reaction that starts with 0.55 M of reagent A and 0.80 M of reagents B and C is \(1.152*10^{-3}\) M/s.

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Answer:

A not

B yes

C yes

D yes

Explanation:

A 2C 6H but 10O and 7O so no

B 3C 6O 2Fe on each side  so yes

C 4H 1S 6O 2Na so yes

D 2Ag 2Cl 1Ca 2N 6O so yes

I Hope this will Help You:-

Organisms need to detect and respond to changes in their internal and external environment. This is because the conditions inside our body must be carefully controlled for it to function effectively and survive. The control systems that allow organisms to respond to changes are incredibly important.

To make 1 liter of a 10% NaCl solution from a solid stock, you will require the following materials and containers.MaterialsSolid NaClDistilled water1-Liter volumetric flask250-mL volumetric flask 2-beakersProcedureTo prepare 1 liter of a 10% NaCl solution, the following procedure should be followed:Measure out 100g of NaCl using a balance.

Measure the weight of an empty 250-mL volumetric flask.Add the NaCl to a 250-mL beaker and add a small amount of distilled water to it to dissolve the NaCl.Carefully pour the dissolved NaCl solution into the 250-mL volumetric flask. Add distilled water to the mark on the flask to make up the volume. Stopper the flask and invert it several times to mix the solution.Measure the weight of the 1-Liter volumetric flask.Add the 250-mL volumetric flask solution to a 1-Liter volumetric flask.Add distilled water to the mark on the flask to make up the volume.

Stopper the flask and invert it several times to mix the solution.The final volume of the solution will be 1 liter of a 10% NaCl solution.PrecautionsEnsure the NaCl has completely dissolved before adding more water to avoid making a less concentrated solution.Measure the weight of the volumetric flask before and after adding the solution to calculate the volume of solution that was added.Use distilled water to prepare the solution.

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The mass of a sample of metal whose temperature rises from 25○C to 53 ○C as 8550 J of heat are absorbed is 338.68 grams.

To determine the mass of the metal sample, we can use the formula for heat absorbed:

Q = mcΔT

where Q is the heat absorbed (8550 J), m is the mass of the metal (which we want to find), c is the specific heat capacity (0.897 J/g-°C), and ΔT is the change in temperature (53°C - 25°C).

First, calculate ΔT:

ΔT = 53°C - 25°C = 28°C

Now, plug in the values into the formula and solve for m:

8550 J = m * (0.897 J/g-°C) * 28°C

To find m, divide both sides by (0.897 J/g-°C * 28°C):

m = 8550 J / (0.897 J/g-°C * 28°C) ≈ 338.68 g

The mass of the metal sample is approximately 338.68 grams.

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Good scientific design involves a. replication and repetition, which is fundamental to gaining understanding by using the scientific method.

Replication and repetition are fundamental in scientific design because they allow for obtaining results that can be tested by using the scientific method and thus validated or refute in the light of new scientific evidence.

Therefore, with this data, we can see that replication and repetition are critical for a good scientific design in order to obtain reproducible results that can be used to develop theories.

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Answer:

A

Explanation:

The heat causes the sugar's atoms to combine with the oxygen in the air, forming new groups of atoms. Energy is released in this chemical reaction in the form of smoke and black soot.         hope this helps

Sugar is made of carbon, hydrogen, and oxygen atoms. When heated over a candle, these elements react with the fire to turn into a liquid. The heat causes the sugar's atoms to combine with the oxygen in the air, forming new groups of atoms. Energy is released in this chemical reaction in the form of smoke and black soot.

Answer:

I would say the top one but im not confident in the answer

Answer:

MARK AS THE BRAINLIEST ANSWER

Explanation:

BRAINLIEST

Answer:

Neon

Explanation:

It has atomic mass of 20 and is a gas.

Answer:

Neon

Explanation:

Answer:

Well why didn't you do it? Have a great day and I am so sorry for wasting your points I don't need them. I hope someone helps!! ;)

Explanation:

The mass of 0.5 mole of the element is approximately 6.025 grams.

To calculate the mass of 0.5 mole of the element, we need to know the molar mass of the element.

Given that the mass of 2 x 10^21 atoms of the element is 0.4 grams, we can use this information to find the molar mass.

The number of atoms in 1 mole of any substance is given by Avogadro's number, which is approximately 6.022 x 10^23 atoms/mol.

First, we calculate the molar mass of the element using the given information:

Molar mass = Mass of 2 x 10^21 atoms / Number of moles of 2 x 10^21 atoms

Molar mass = 0.4 g / (2 x 10^21 atoms / (6.022 x 10^23 atoms/mol))

Molar mass ≈ 0.4 g / (3.32 x 10^-2 mol)

Molar mass ≈ 12.05 g/mol

Now that we know the molar mass of the element is approximately 12.05 g/mol, we can calculate the mass of 0.5 mole of the element:

Mass = Molar mass x Number of moles

Mass = 12.05 g/mol x 0.5 mol

Mass = 6.025 grams

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Answer:

It describes the number of atoms in 1 mole of an element.

Explanation:

Avogadro's number is simply a definition of a very large number.  It is called a mole.   It has no physical units.  It simply means 6.02x10^23 of something.  Anything.  Atoms, molecules, paper clips, dollars, school buses, people waiting in line for a concert, etc.  Anything.  Similar words include billion, trillion, quintillion, picometer (look it up) and similar shorthand for very large numbers.  "Santa received 1.8 moles of letters this past year" is an easier way of saying that he received 1,080,000,000,000,000,000,000,000  (or 1.08x10^24) letters.   Publishers didn't like the idea that science books may be cluttered with such nonsense.  And scientists have more fun things to do than wrtite out such long numbers [correctly], so the mole was invented.  It's relationship to the Periodic Table and concept of molar mass is it's true value, but that isn't aksed in this question.

Answer:

A biology investigation usually starts with an observation—that is, something that catches the biologist’s attention. For instance, a cancer biologist might notice that a certain kind of cancer can't be treated with chemotherapy and wonder why this is the case. A marine ecologist, seeing that the coral reefs of her field sites are bleaching—turning white—might set out to understand why.

How do biologists follow up on these observations? How can you follow up on your own observations of the natural world? In this article, we’ll walk through the scientific method, a logical problem-solving approach used by biologists and many other scientists.

Explanation:

Answer:

Hi! A substance with a pH of 11 is considered to be a base. Substances with a pH of 1-6 are considered to be acidic, substances with a pH of 7 are considered to be neutral, and substances with a ph of 8-14 are considered to be basic.

Have a great day! - Mani :)

Answer:

Base.

Explanation:

The pH scale includes the numbers 0 - 14, in which:

0 - 6 = acid, the smaller the number, the more acidic.

7 = neutral

8 - 14 = base, the greater the number, the more basic.

In this case, 11 falls within base, so your answer will be a base.

1.5 mole or 1.5 total number of atoms are there in a 30. gram sample of neon .

The mole concept is a convenient method of expressing the amount of a substance.

Mole is the amount of substance that contains as many elementary entities as there are atoms in exactly 12 grams of the carbon−12 isotope.

1 mole=6.022×1023 particles of matter of any chemical substance.

To calculate the total number of atoms in 30 gm sample of neon-

Given,

Mass of the substance =30 gm

Molar mass of neon = 20.17 a.m.u

n(no. of atoms )=?

We know number of atoms is given -

n=mass/molar mass

n=30/20.17

n=1.48≈1.5 mole

The total number of atoms in a 30 gm sample of neon will be 1.5 mole .

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the solubility (in moles/liter) of pbcl2 in a solution that is 0.15 m solution in hcl? (ksp pbcl2

Solubility of PbCl2 = 7.11×10−4 mol⋅L−1

The maximum amount of a chemical that will dissolve in a given amount of solvent at a given temperature is referred to as its solubility. Varying compounds have very different solubilities, which is a characteristic of a particular solute-solvent pair.What is solubility, for instance?

A typical illustration of a solution is the addition of sugar cubes to a cup of tea or coffee. Solubility is a quality that aids in the dissolution of sugar molecules. Thus, the ability of a substance (solute) to dissolve in a specific solvent can be defined as solubility.

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Triple orbital degeneracy refers to a situation where there are three orbitals that have the same energy level. This can give rise to interesting phenomena in chemistry and physics. For example, in a magnetic field, triple degeneracy can lead to the splitting of the energy levels into three distinct levels, known as Zeeman splitting.

They can help us understand the behavior of electrons in atoms and molecules and can have applications in fields such as quantum computing and materials science. Additionally, triple degeneracy can play a role in the electronic structure of certain molecules and can affect the way that they react with other molecules or undergo chemical transformations. Triple orbital degeneracy gives rise to a situation in which three orbitals of the same energy level are available for electrons to occupy. This means that electrons in these degenerate orbitals can be arranged in various ways while maintaining the same energy state. As a result, this can lead to a greater number of possible electron configurations and increased stability in certain molecular or atomic systems.

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When pipes leak, the environment's air, water, soil, and climate might be harmed. When there is a lot of rain and flooding, pipes that span rivers and streams are more likely to burst.

Acid rain, deteriorating water quality, groundwater contamination, and the greenhouse effect's intensification are only a few significant environmental effects. Aside from destroying ecosystems that, in some cases, may be unique, the oil and gas industry may also be a factor in the decline of biodiversity. Drilling and milling machines have both advantages and drawbacks.

Benefits: accurate points, good feed control, and challenging to roll. Retraction's shortcomings include its lack of flexibility and inability to process large or deep holes. Furthermore, methane, a greenhouse gas 21 times more potent than carbon dioxide, is released in enormous quantities by the oil and gas sector. In total, the industry is to blame for 3.8% of all greenhouse gases, or 38% of all methane emissions in the United States.

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Answer:

0.184 mol

Explanation:

Look up molar masses for the elements that comprise H₃PO₄:

H = 1.008 g/mol

P = 30.97 g/mol

O = 15.99 g/mol

The molar mass of H₃PO₄ is a weighted sum of these (3 hydrogen + 1 phosphorus + 4 oxygen) that comes out to about 97.99 g/mol.

Then

(18 g H₃PO₄) × (1/97.99 mol/g) ≈ 0.1837 mol

Burrows, tracks, coprolites, nests and footprints are examples of traces that can be found in a fossil.

Answer:

TRIPLE COVALENT BOND

Explanation:

Each nitrogen atom needs 3 more electrons, so they share 3 pairs of electrons between the two nitrogen atoms

A nitrogen atom can fill its octet by sharing three electrons with another nitrogen atom, forming three covalent bonds, a so-called triple bond. The triple bond formation of nitrogen is shown in the following figure.

Image result for triple bond in nitrogen

While molecular compounds often have greater specific temperatures than metals, metals typically have lower specific heats. The temperature change, T, is expressed in degrees Celsius.

Heat transmission through building surfaces such as walls, roofs, and windows causes heat loss, which is the reduction of heat that already exists in space.

By multiplying the area, the temperature differential between an interior and outside surface, and the material's heat loss value, we may determine heat loss.

Heat acquired by the water equals heat lost by the metal, or Qmetal = (Tm)(mm)(sm) = Qwater = (Tw)(mw)(sw), where m and w stand for the metal and the water, respectively.

Therefore, Copper and aluminum are the metals with the best thermal conductivity. Steel and bronze are at the bottom.

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Answer:

Just add and multiply after divding and lol

Explanation: add then add

Answer:

i know im painfully late but the answer is "the saturation point of a solution is measured in moles."

Explanation:

The relationship between concentration and mole is the number of particles of solute in a solution measured in terms of moles. Therefore,  option (D) is correct.

The mole is used to calculate the quantity amount of any substance. Moles of any substance can be determined by dividing the mass of the substance by its molar mass. Mole is useful to determine how many solute particles are present in a given solution.

Moles and molar mass are related to each other, as the concentration of substances can be calculated by using the number of moles of the solute.

The concentration of a solution is a measurement of the amount of solute per unit volume of solution. In chemistry, concentration is most commonly expressed in terms of molarity, which is equal to moles per liter solution.

Therefore, the correct option is option D.

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