The temperature of a sample of gas is 350K at 2.5 atm and 45.0 L. What is the new volume at standard temperature and pressure?

When atoms form chemical bonding then the atoms attain Noble gas configuration.

Noble gas configuration of an atom includes the fundamental image of the ultimate noble fueloline previous to that atom, observed via way of means of the configuration of the ultimate electrons.so for sodium, we make the substitution of [Ne] for the 1s22s22p6 a part of the configuration. Sodium's noble fueloline configuration becomes [Ne]3s1.

Covalent bonds, atoms percentage pairs of electrons, at the same time as in ionic bonds, electrons are absolutely transferred among atoms in order that ions are formed.During the formation of a chemical bond, the predicted end result is that the electrons will whole a noble fueloline configuration in each atoms. Typically, while atoms shape a chemical bond, the predicted end result is that the electrons.

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Answer:

sodium ,Na and magnesium,Mg

Organic compound which has -OH as functional group is classified as alcohols while those with -COOH as functional group are classified as carboxylic acids.

Functional group is defined as a substituent or group of atoms or an atom which causes chemical reactions.Each functional group will react similarly regardless to the parent carbon chain to which it is attached.This helps in prediction of chemical reactions.

The reactivity of functional group can be enhanced by making modifications in the functional group .Atoms present in functional groups are linked to each other by means of covalent bonds.They are named along with organic compounds according to IUPAC nomenclature.

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The description of nonpoint source pollution is dirty drainage from city roadways.

The correct option is A.

Pollution describes the presence of substances in the environment that are harmful to the living organisms present in that environment.

Pollution may be classified based on the source of the pollution into:

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Answer:

B solvent

Explanation:

The mass of the corn oil is 39.002 g.

Define density.

The ratio of mass to volume forms the compound measure known as density. The amount of matter per unit volume is measured by density.

Given:

Density of corn oil =  0.88 g/ml

Volume of corn oil = 44.32 ml

Mass= ?

To calculate the mass, density or volume of an object, we use the formula:

Mass = density * volume

where M is the mass,

D is the density, and

V is the volume of an object.

By substituting the values in the above formula, we get

Mass = density * volume

Mass

= 0.88 g/ml* 44.32 ml

= 39.002 g

Therefore, the mass of the corn oil is 39.002 g.

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Answer:

6 moles of Iron(II) Oxide

Answer:

1.2 mol

Explanation:

Answer:

option D is the correct answer of this question.

When stress is applied to an equilibrium reaction then the system will change its concentration to shift to a new equilibrium position.

So, the correct option is D.

The stage at which the rate of formation of reaction is equal to rate of backward reaction in an reversible reaction is called equilibrium.

The reaction in such stage occur is called equilibrium reaction.

There are some factors which affects the equilibrium.

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Answer:

region 2 and region 3

Explanation:

you can tell by the color of the land my friends^^

Answer:

2, 3 They are closest to the equator, and the equator marks to hottest places on earth.

Explanation:

I hope this helps you.

Answer:

It would be 3.1063937724731447 moles.

Hope this helps :)

Answer:

1. positive

2. no relationship

3. negative

Explanation:

1. increasing would mean x and y are becoming greater

2. straight across would not be increasing x or y

3. decreasing would mean y (probably not x) is getting smaller

i hope that's what you're looking for

Answer:

The pH of a solution in which the concentration of hydroxide ions is 6.9 x 10^-10 M is approximately 4.84.

Explanation:

The pH of a solution can be calculated from the concentration of hydroxide ions (OH-) using the relationship between pH, pOH, and the ion product constant for water (Kw). The pOH of a solution is defined as the negative logarithm (base 10) of the hydroxide ion concentration: pOH = -log[OH-]. The pH and pOH of a solution are related by the equation pH + pOH = 14. The ion product constant for water at 25°C is Kw = [H+][OH-] = 1.0 x 10^-14.

In this case, the concentration of hydroxide ions is given as [OH-] = 6.9 x 10^-10 M. We can use this value to calculate the pOH of the solution:

pOH = -log[OH-] = -log(6.9 x 10^-10) = 9.16

Then, we can use the relationship between pH and pOH to calculate the pH of the solution:

pH + pOH = 14

pH + 9.16 = 14

pH = 14 - 9.16

pH = 4.84

Therefore, the pH of a solution in which the concentration of hydroxide ions is 6.9 x 10^-10 M is approximately 4.84.

Answer:

pH = 4.84

Explanation:

To find the pH of a solution, we can use the formula:

pOH = -log[OH-]

Given:

[OH-] = 6.9 × 10^-10 M

First, let's calculate the pOH of the solution:

pOH = -log(6.9 × 10^-10)

pOH ≈ -(-9.16)

pOH ≈ 9.16

Now, to find the pH, we can use the relation:

pH + pOH = 14

pH = 14 - pOH

pH = 14 - 9.16

pH ≈ 4.84

Therefore, the pH of the solution is approximately 4.84.

Environmental scientists prioritize environmental impact assessment, mitigation, and sustainability, while civil engineers focus on engineering and construction aspects of the geothermal site.

The difference in the work performed by an environmental scientist and a civil engineer during the development of a geothermal site is as follows:
1. Environmental Scientist: Their primary role is to assess and monitor the environmental impacts of the geothermal site development. They study the site's natural resources, flora, fauna, and potential environmental risks. Their work includes collecting data, analyzing potential impacts on the environment, and ensuring compliance with environmental regulations.
2. Civil Engineer: Their main responsibility is to design, plan, and oversee the construction of the geothermal site's infrastructure. This includes the development of roads, pipelines, and buildings necessary for the site's operation. They also work on the structural aspects of the project, ensuring that the design is safe, efficient, and sustainable.
In summary, an environmental scientist focuses on the environmental aspects and impacts of the geothermal site development, while a civil engineer focuses on the design and construction of the infrastructure. Both professionals work together to ensure the successful and sustainable development of the geothermal site.

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Atoms strive for a helium nucleus electron configuration, which consists of eight valence electrons, in accordance with the octet rule.

The research of chemical reactions that take place both in and out of living organisms is known as biochemistry. It is a research facility science that combines chemistry and biology. Biochemists can understand and address biological issues by utilizing their understanding of and proficiency with chemical processes.

One such biological molecule is glucose. The Greek word for "life" is where the word bio- comes from. Any carbon-based substance found in living beings is referred to as a biochemical compound. The cells in the body of all living organisms are composed of biochemical substances.

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The correct answer is the liquid level will be lower inside the capillary when a capillary is inserted into a bowl of the liquid.

When a liquid is placed in a glass capillary with a convex meniscus, the behavior of the liquid is driven by strong cohesive forces between the liquid molecules and strong interactions with the capillary glass. As a result, the liquid will have a convex meniscus, meaning that the surface of the liquid will be curved outward. This is due to the forces acting on the liquid in the capillary. However, when a capillary is inserted into a bowl of the liquid, the liquid level inside the capillary will be higher than the liquid level outside the capillary. This is because the cohesive forces between the liquid molecules are stronger inside the capillary, where the liquid is in contact with the walls of the capillary, than they are outside the capillary. As a result, the liquid will be pulled up the walls of the capillary, causing the liquid level inside the capillary to be higher than the liquid level outside the capillary. This is opposite to what is stated in choice b, which is why it is the correct answer.

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Answer:

32 degrees

Explanation:

The grams of N2 are required to completely react with 3.03 grams of H2 for the following balanced chemical equation is 14 g.

We may calculate the number of moles of H2 that will be used by dividing the amount of H2 that will be utilised by its molar mass. We may multiply that number by the molar mass of N2 to get how many grammes we should use. We can divide that mole quantity by 3 to determine how many moles of N2 the reaction will consume.

In the reaction 1 mole of N2 react with  3 mole of H2 and give 2 mole of NH3

mass of H2 = 3.03g

No of moles of H2 = 3.03g/2 gmol-1

         = 1.51 mole

1.51 mole of H2 require N2 = (1/3)× 1.51 moles  

        = 0.50 mole N2

molar mass of N2  =28g/mol

Mass of N2 require   = 0.50mole ×28g/mol

    = 14g

Mass of N2 require = 14g.

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The answer is C. 14.0 grams of N2 are required to completely react with 3.03 grams of H2.

The balanced chemical equation is:

N2 + 3H2 -> 2NH3

From the equation, we can see that 1 mole of N2 reacts with 3 moles of H2 to produce 2 moles of NH3.

To find out how many grams of N2 are required to react with 3.03 grams of H2, we first need to convert 3.03 grams of H2 to moles:

moles of H2 = mass of H2 / molar mass of H2
moles of H2 = 3.03 / 2.016
moles of H2 = 1.505

Now, we can use the mole ratio from the balanced equation to find out how many moles of N2 are required to react with 1.505 moles of H2:

moles of N2 = (1.505 mol H2) / (3 mol H2/1 mol N2)
moles of N2 = 0.5017

Finally, we can convert moles of N2 to grams of N2:

mass of N2 = moles of N2 x molar mass of N2
mass of N2 = 0.5017 x 28.02
mass of N2 = 14.04

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A compound is a substance made up of two or more different elements that are chemically bonded together. A molecule, on the other hand, is the smallest unit of a chemical compound that has the chemical properties of that compound. In other words, a compound is a type of molecule.

For example, water (H2O) is a compound made up of two hydrogen atoms and one oxygen atom. The smallest unit of water that still has the chemical properties of water is a molecule of water, which is made up of two hydrogen atoms and one oxygen atom chemically bonded together.

Another example is table salt (NaCl), which is a compound made up of one sodium atom and one chlorine atom chemically bonded together. The smallest unit of table salt that still has the chemical properties of table salt is a molecule of table salt, which is made up of one sodium atom and one chlorine atom chemically bonded together.

It's worth noting that not all compounds are made up of molecules. For example, compounds like metals, which are made up of metal atoms packed closely together, do not have distinct molecules, because the atoms are not chemically bonded together in a specific ratio, but instead are held together by metallic bonds.

In summary, a compound is a substance made up of two or more different elements that are chemically bonded together, and a molecule is the smallest unit of a chemical compound that has the chemical properties of that compound. Examples of compounds include water and table salt, which can be broken down into their respective molecules, H2O and NaCl respectively.

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The ratio of [CH₃COOH] to [CH₃COO⁻] is 1:1 at pH 4.76, meaning that equal amounts of acetic acid and its conjugate base are present in the solution.

To find the ratio of [CH₃COOH] to [CH₃COO⁻] at pH = 4.76, we can use the Henderson-Hasselbalch equation, which is:
pH = pKa + log ([A⁻]/[HA])

In this case, the pKa of acetic acid is 4.76, and the pH is also 4.76. Plugging these values into the equation, we get:
4.76 = 4.76 + log ([CH₃COO⁻]/[CH₃COOH])

Since both sides of the equation are equal, it means the logarithmic term must be equal to 0:
0 = log ([CH₃COO⁻]/[CH₃COOH])

To find the ratio, we can take the antilog of both sides:
1 = [CH₃COO⁻]/[CH₃COOH]

This indicates that the ratio of [CH₃COOH] to [CH₃COO⁻] is 1:1 at pH 4.76, meaning that equal amounts of acetic acid and its conjugate base are present in the solution. This pH value represents the buffering capacity of the acetic acid/acetate system, as the solution can effectively resist changes in pH when small amounts of acids or bases are added.

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Answer:

The temperature to the nearest 0.5°C is 98.5°C

They will not have to pay any cost because the accident was not Dave’s fault, Eli will be covered by Dave’s family car insurance policy, they will be protected by the other driver’s insurance. (B,C,D)

Explanation: just answered it and it was correct.

B. They will not have to pay any costs because the accident was not Dave’s fault.

C. Eli will be covered by Dave’s family car insurance policy.

D. They will be protected by the other driver’s insurance.

May I have brainliest please? :)

Answer: Observing

Explanation: Information gathered in an experiment is called data, and its represents observations derived from the methods of the experiment on its sample elements.  Hope this helped! :)

The Information gathered from observations and experimentation is called empirical evidence. Empirical evidence is a significant part of scientific research and helps to further results and discussions.

Scientific research is a well designed and organised steps to conducts a scientific experiment for solving a problem under study. The research  methodologies include logical, economic and creative ways to reveal the solution for a problem.

Information obtained through testing or observation is known as empirical evidence. These data are logged and examined by scientists. The procedure, which is a key component of the scientific method, results in the confirmation or rejection of a hypothesis and, as a result, improves our knowledge of the universe.

A hypothesis can be tested and accurately evaluated using different types of data collection, such as experiments that aim to produce a quantifiable or observable reaction, trials that replicate experiments to test their effectiveness  or other methods of data collection.

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The Keq for the interconversion for the two chair conformers of methylcyclohexane at 25 °C is 18. The % of the chair conformers having an axial methyl group is A) 95%.

If the value of Keq is higher than 1, that means the reaction is favored in the forward direction. If the value of Keq is lower than 1, that means the reaction is favored in the reverse direction.If the value of Keq is equal to 1, that means the reaction is at equilibrium.Methylcyclohexane is an example of the cyclohexane molecule in which there is a substitution of a methyl group on one of the six carbon atoms in the ring structure. The two chair conformers of methylcyclohexane are the axial and equatorial conformers, in which the methyl group is either in an axial or equatorial position, respectively.

The percentage of chair conformers having an axial methyl group can be calculated using the following formula:

% axial conformer = Keq / (1+Keq) × 100

Putting the value of Keq in the formula:

axial conformer = 18 / (1+18) × 100%

axial conformer = 18/19 × 100%

axial conformer = 94.7%

The value of percentage has been rounded off to the nearest whole number, which is 95. Therefore, the answer is (A) 95.

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Answer:   2) see below

                 3) 2AgCl → 2Ag + Cl₂

Explanation:

2)

Step 1: Crushing & Grinding   CuFeS₂(s)→  CuFeS₂(s)

Step 2: Froth Flotation           CuFeS₂(s)---->  CuFeS₂ (l)

Step 3: Roasting   2CuFeS₂(l) + 3O₂(g) → 2FeO(s) + 2CuS(s) + 2SO₂(g)

Step 4: Converting matte to blister Cu₂S(l) + O₂(g) → 2Cu(l) + SO₂(g)

Step 5: Anode Casting           Cu(l) → Cu(s)

Step 6: Electrolytic Refining   Cu(s) → Cu(s)

            Anode: Cu(s) → Cu₂ + (aq) + 2e-

                     Cathode: Cu2 + (aq) + 2e- → Cu(s)

see diagram below for illustration of steps

3) When silver chloride (solid) is exposed to sunlight, it decomposes into silver (solid) and chlorine (gas).

The equation is written as:  \(2AgCl_{(s)}\xrightarrow{\text{sunlight}}}2Ag_{(s)}+Cl_{2(g)}\)

i think its double replacement if i'm not mistaken  

Answer:

4 mol Fe

5 mol FeCl₃

Explanation:

Step 1: Write the balanced equation

2 Fe + 3 Cl₂ ⇒ 2 FeCl₃

Step 2: Calculate how much iron (Fe) is needed to produce 4 moles of FeCl₃

According to the balanced equation, the molar ratio of Fe to FeCl₃ is 2:2.

4 mol FeCl₃ × 2 mol Fe/2 mol FeCl₃ = 4 mol Fe

Step 3: Calculate how much FeCl₃ is produced when 5 moles of Fe react in excess chlorine

According to the balanced equation, the molar ratio of Fe to FeCl₃ is 2:2.

5 mol Fe × 2 mol FeCl₃/2 mol Fe = 5 mol FeCl₃

The answer is that bronze consists of mostly copper and approximately 12% tin.

Bronze is an alloy made up of two or more metals, with copper being the primary component. The addition of other metals to copper alters its properties, making it stronger, harder, and more durable.

Tin is the most common metal added to copper to create bronze, comprising approximately 12% of the alloy. Other metals, such as aluminum, nickel, or zinc, may also be added in varying amounts to create specific types of bronze for different purposes.

In summary, the answer to your question is that tin is the other element added to copper to create bronze, with approximately 12% of the alloy consisting of tin.


Bronze is an alloy primarily made up of copper and tin, with tin being the secondary element, usually present in about 12% of the composition. This combination of metals provides the alloy with improved strength, durability, and corrosion resistance compared to pure copper.

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The order of decreasing rate of effusion for the given gases is:

H2 > He = Ne > CO > Ar > C4H8

This means that hydrogen (H2) will effuse the fastest, followed by helium (He) and neon (Ne) at the same rate, then carbon monoxide (CO), argon (Ar), and finally butane (C4H8) with the slowest effusion rate. This order is determined by Graham's law of effusion, which states that the rate of effusion of a gas is inversely proportional to the square root of its molar mass. Since hydrogen has the lowest molar mass, it will effuse the fastest, while butane has the highest molar mass and therefore the slowest effusion rate. The other gases fall somewhere in between based on their respective molar masses.

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The molecular weight of the 6 ethoxycarbonyl 3 5 diphenyl 2 cyclohexenone is 318.4 g/mol.

The formula for the compound, 6 ethoxycarbonyl 3 5 diphenyl 2 cyclohexenone is :

The molecular formula = C₂₁H₁₈O₃

The molar mass of the C = 12 g/mol

The molar mass of the H = 1.008 g/mol

The molar mass of the O = 16 g/mol

The molecular weight of the compound is :

The molecular weight of C₂₁H₁₈O₃ = ( 21 × 12 + 18 × 1.008 + 3 × 16 )

The molecular weight of C₂₁H₁₈O₃ = 318.4 g/mol.

The molecular weight of C₂₁H₁₈O₃ is 318.4 g/mol.

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This question is incomplete, the complete question is :

6 ethoxycarbonyl 3 5 diphenyl 2 cyclohexenone. calculate the molecular weight of the given compound.