the structure that houses dna

Diffusion does not require any addition of energy to the molecules, which already have energy in their kinetic motion. Facilitated diffusion is diffusion across a membrane that is aided by transport proteins. This makes the diffusion easier than it would otherwise be.

One form of transport protein is called a channel protein. Just like a key lets you get into a building or a room, channel proteins can let some molecules get across a membrane.

Answer:

392 grams

Explanation:

Begin by finding the molar mass. You do this by adding the atomic mass of each element in the compound.

So, add 4(12)+8(1)=56 grams C4H8

Next, set up an equation.

We start with 7 moles of C4H8, and we want to convert moles to grams. We will use the molar mass for that.

So 7mol C4H8/1 x 56grams C4H8 per/1 mole C4H8= 392 grams of C4H8 per seven moles of C4H8

Ratio of moles of NH₃ produced to moles of N₂ used: 2 moles of NH₃ / 1 mole of N₂

Ratio of moles of NH₃ produced to moles of H₂ used: 2 moles of NH₃ / 3 moles of H₂

From the balanced chemical equation:

N₂ + 3 H₂ ⟶ 2 NH₃

We can determine the ratio of moles of products to the moles of each reactant.

Ratio of moles of NH₃ produced to moles of N₂ used:

From the balanced equation, we can see that 1 mole of N₂ reacts to produce 2 moles of NH₃. Therefore, the ratio is:

2 moles of NH₃ / 1 mole of N₂

Ratio of moles of NH₃ produced to moles of H₂ used:

From the balanced equation, we can see that 3 moles of H₂ react to produce 2 moles of NH₃. Therefore, the ratio is:

2 moles of NH₃ / 3 moles of H₂

Learn more about the mole ratio at https://brainly.com/question/19099163

#SPJ1

Given the equation of reaction;

N₂ + 3 H₂ ---> 2 NH₃

Calculate the ratio of the moles of produced to the moles of each of the reactants used. (Write two separate ratios.)

Answer:

A= 2, B= 1

Explanation:

In the given electronic configuration of Lithium, the values of A and B are 2 and 1, respectively.

The electronic configuration of an atom describes how its electrons are distributed among the various energy levels and orbitals. It is typically represented using a series of numbers and symbols that indicate the number of electrons in each orbital.

To complete the electron configuration for lithium (Li), we'll refer to the periodic table:

The atomic number of lithium is 3, which means it has 3 electrons. The electron configuration for lithium can be determined as follows:

\(1s^2 2s^1.\)

In this case,

So, for lithium (Li), the completed electron configuration is:

\(1s^2 2s^1.\)

Therefore, the values of A and B in the given electronic configuration of Lithium are A = 2, B = 1, respectively.

Learn more electronic configuration about here:

https://brainly.com/question/29157546

#SPJ2

The periodicity and patterns displayed by the earlier versions of the periodic table played a critical role in driving the discovery of new elements, and the periodic table remains an essential tool for organizing and understanding the properties of the known elements today.

The chemical elements are arranged in rows and columns in the periodic table, sometimes referred to as the periodic table of the elements.

The Russian chemist Dmitri Mendeleev's periodic table, which he developed in 1869 and which established the periodic law as the dependence of chemical properties on atomic mass, was the first to be widely acknowledged.

Mendeleev's periodic table had gaps because not all elements were known at the time; however, he was able to forecast some of the missing elements' properties using the periodic law.

Learn more about the periodic table at: https://brainly.com/question/25916838

#SPJ1

Answer:

percentage of salt is 57.6% in this seasoning.

Explanation:

Total amount of seasoning given is = 125 gram

Amount of salt = 72 gram

Now to calculate percentage of salt in seasoning we can use percentage formula:

percentage of salt = \(\frac{weight of salt}{weight of seasoning}\) × 100

= \(\frac{72}{125}\) × 100

= 57.6 %

Learn more on:

https://brainly.com/question/2155156

The dependent variable in this experiment is the number of migraines recorded in the study (option A).

Dependent variable in an experiment is the outcome measured to see the effectiveness of the treatment.

In an experiment, the independent variable is altered or changed to bring about a response in the dependent variable.

According to this question, if a scientist was attempting to decide what type of light was best for reducing migraines, the number of migraines recorded is the dependent variable.

Learn more about dependent variable at: https://brainly.com/question/1479694

#SPJ1

Sedimentation, filtration, and coagulation are the treatments that will help remove contaminants from minerals or from the pipes carrying water from a source.

Sedimentation is a process in which suspended particles settle out of water. It is one of the most basic techniques for removing particles from water. As particles settle, they become trapped in the bottom of a container or settle to the ground in an outdoor setting

Filtration is a method of removing particles from a fluid. It is a physical or chemical separation method that separates solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass.

Coagulation is the process of using chemicals to remove contaminants from water. By creating a chemical reaction, coagulation destabilizes particles and causes them to clump together. This helps to remove the contaminants from the water.

Disinfection is the process of eliminating or destroying pathogens that cause infection. Disinfection eliminates harmful microorganisms by destroying or inactivating them. The disinfectant is a chemical or physical agent that is used to destroy or inactivate harmful microorganisms.

Know more about  Filtration   here:

https://brainly.com/question/29756050

#SPJ8

Answer:

Maximum amount of NaCl that can be Dissolved in 100g of water at 90'C

Explanation:

In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C . So, at 80∘C , you will have an unsaturated solution if you dissolve less than 40 g of sodium chloride, and a saturated solution if you dissolve about 40 g of sodium chloride

Answer:

The maximum amount of NaCl that can be Dissolved in 100g of water at 90'C

Explanation:

In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C . So, at 80∘C, you will have an unsaturated solution if you dissolve less than 40 g of sodium chloride, and a saturated solution if you dissolve about 40 g of sodium chloride.

These substances have dispersed particles that are large enough to scatter light, making the beam visible. Therefore, out of the options provided, a mixture that scatters light is an example of a colloid. Option B)

A colloid is a type of mixture in which particles are dispersed throughout a medium, creating a homogeneous appearance. Unlike solutions, where the particles are completely dissolved, and suspensions, where the particles settle out, colloids have particles that are larger than those in solutions but smaller than those in suspensions. One characteristic of colloids is that they can scatter light due to the size of the particles. This scattering of light is known as the Tyndall effect. Examples of colloids include milk, fog, and aerosol sprays. These substances have dispersed particles that are large enough to scatter light, making the beam visible. Therefore, out of the options provided, a mixture that scatters light is an example of a colloid. Therefore option B) is correct

For more question on mixture

https://brainly.com/question/24647756

#SPJ8

Note Complete Question

which is an example of a colloid?

a mixture that settles out,

b mixture that scatters light,

c mixture that is separated by filtration,  

d salt and water mixture?

Answer:

the mass of 2.20 x 10^22 formula units of NaOH is 1.46 grams to three significant figures.

Explanation:

To calculate the mass of 2.20 x 10^22 formula units of NaOH, we can use the following steps:

Calculate the number of moles of NaOH:

Number of moles = Number of formula units / Avogadro's number

Number of moles = 2.20 x 10^22 / 6.022 x 10^23

Number of moles = 0.0365 mol

Calculate the mass of NaOH:

Mass = Number of moles x Molar mass

Mass = 0.0365 mol x 40.0 g/mol

Mass = 1.46 g

Therefore, the mass of 2.20 x 10^22 formula units of NaOH is 1.46 grams to three significant figures.

Answer:

D

Explanation:

The unit used to measure atomic mass is the atomic mass unit (amu). A single amu is equivalent to 1/12 the mass of an atom from the carbon-12 isotopIsotopes with different numbers of protons and neutrons will have an actual mass slightly different from the atomic mass calculated in atomic mass units.

The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

for more such questions on symptom

https://brainly.com/question/21078887

#SPJ8

Answer:

it doesn't the molces stay the same

Explanation:

Answer:

the answer is "Transferring of electrons from one atom to another creates the bond"

Explanation:

The statement which is true about covalent bonds is that the valence

electrons are shared in order to achieve the bond.

Covalent bonds involves the atoms of two elements sharing electrons in

order to achieve a stable configuration. The electrons which are shared are

those at the outermost layer of the shell and they are called valence

electrons.

These bonds help in the formation of new compounds such as water which

is formed from the covalent bonding between hydrogen and oxygen.

Read more on https://brainly.com/question/3447218

In order to understand how digestion of nutrients occurs, or how nutrients are used to provide cellular energy, it is necessary to understand C. chemistry.

Chemistry is the branch of science that deals with the composition, properties, and interactions of matter. In the context of digestion and cellular energy, chemistry is essential because it provides the foundation for understanding the chemical reactions that occur within the body.

For example, the digestion of nutrients involves the breakdown of complex molecules such as carbohydrates, proteins, and fats into simpler molecules that can be absorbed and utilized by the body.

Find out more on chemistry at https://brainly.com/question/2460378

#SPJ1

Approximately 60.9% of the total energy in 2005 came from fuels that emitted greenhouse gases. This signifies a significant contribution to global greenhouse gas emissions and highlights the importance of transitioning to cleaner and more sustainable energy sources to mitigate climate change impacts.

To determine the total percent of energy that came from fuels emitting greenhouse gases, we need to consider the energy sources listed in the chart that are known to produce greenhouse gas emissions. In this case, those would be oil, natural gas, and coal.

From the chart, we see that the percentages for these three energy sources are:

Oil: 37.9%

Natural gas: 23%

Coal: Not specified

Although the percentage for coal is not mentioned in the given information, it is a known fact that coal combustion releases greenhouse gases, including carbon dioxide (CO2). Therefore, we can assume that coal is among the fuels emitting greenhouse gases.

Adding up the percentages for oil and natural gas, we have:

37.9% (oil) + 23% (natural gas) = 60.9%

Therefore, approximately 60.9% of the total energy in 2005 came from fuels that emitted greenhouse gases. This signifies a significant contribution to global greenhouse gas emissions and highlights the importance of transitioning to cleaner and more sustainable energy sources to mitigate climate change impacts.

For more question on energy

https://brainly.com/question/30745996

#SPJ11

the possible quantum numbers (ordered n, ℓ, mℓ ) are:Option B.5, 3, -3 and Option C. 4, 3, -2

The quantum numbers n, ℓ, mℓ represent respectively the principal quantum number, the orbital angular momentum quantum number and the magnetic quantum number.

These are the three most important quantum numbers. T

here is another quantum number called the spin quantum number, denoted by ms.

Let's see which of the given quantum number sets is possible.2, 1, 3 is not possible because for ℓ = 1, mℓ can only be -1, 0, or 1. 5, 3, -3 is possible.4, 3, -2 is possible. -4, 3, 1 is not possible.

For any value of ℓ, mℓ must be between -ℓ and +ℓ. e. 2, 1, -2 is not possible because for ℓ = 1, mℓ can only be -1, 0, or 1. f. 3, 2, 2 is not possible because for ℓ = 2, mℓ can only be -2, -1, 0, +1, or +2. g. 3, 3, 1 is not possible because for any value of ℓ, mℓ must be between -ℓ and +ℓ.

Therefore, the possible quantum numbers (ordered n, ℓ, mℓ ) are:5, 3, -34, 3, -2

For more questions on quantum numbers

https://brainly.com/question/30881398

#SPJ8

Answer:

2.5 % butane, 42.2 % pentane and 55.3 % hexane

Explanation:

Hello,

In this case, the mass balance for each substance is given by:

\(Butane:z_bF=y_bD+x_bB\\\\Pentane: z_pF=y_pD+x_pB\\\\Hexane: z_hF=y_hD+x_hB\)

Whereas \(y\) accounts for the fractions at the outlet distillate and \(x\) for the fractions at the outlet bottoms. Moreover, with the 90 % recovery of butane, we can write:

\(0.9=\frac{y_bD}{z_bF}\)

So we can compute the product of the molar fraction of butane at the distillate by total distillate flow by assuming a 100-mol feed:

\(y_bD=0.9*z_bF=0.9*0.2*100mol=18mol\)

The total distillate flow:

\(y_bD=18mol\\\\D=\frac{18mol}{0.95} =18.95mol\)

And the total bottoms flow:

\(F=D+B\\\\B=F-D=100mol-18.95mol=81.05mol\)

Next, by using the mass balance of butane, we compute the molar fraction of butane at the bottoms:

\(x_b=\frac{z_bF-y_bD}{B} =\frac{0.2*100mol-18mol}{81.05} =0.025\)

Then, the molar fraction of pentane and hexane:

\(x_p=\frac{z_pF-y_pD}{B} =\frac{0.35*100mol-0.04*18.95mol}{81.05} =0.422\)

\(x_h=\frac{z_hF-y_hD}{B} =\frac{(1-0.2-0.35)*100mol-(1-0.95-0.04)*18.95mol}{81.05} =0.553\)

Therefore, the molar composition of the bottom product is 2.5 % butane, 42.2 % pentane and 55.3 % hexane.

NOTE: notice the result is independent of the value of the assumed feed, it means that no matter the basis, the compositions will be the same for the same recovery of butane at the feed, only the flows will change.

Regards.

Answer:

The percentage composition of the Bottoms is

- 2.46% Butane.

- 42.25% Pentane.

- 55 29% Hexane.

Explanation:

The feed is eventually separated into distillate and bottoms at the end of the day.

If the total number of moles in the feed = F, and we assume an initial basis of 100 mol

Total number of moles in the distillate = D

Total number of moles in the bottoms = B

Since distillation is a physical separation technique, with no chemical reaction expected,

The overall balance of the system,

F = 100 = B + D (eqn 1)

In the feed, there is 20 mole% of butane, 35 mole% of pentane and the rest, that is, 45 mole% of hexane.

Butane = 0.20F moles = 0 2×100 = 20 moles

Pentane = 0.35F moles = 0.35×100 = 35 moles

Hexane = 0.45F moles = 0.45×100 = 45 moles

In the distillate, there is 95 mole% of butane, 4 mole% of pentane and the rest, that is, 1 mole% is hexane

Butane = 0.95D moles

Pentane = 0.04D moles

Hexane = 0.01D moles

The composition of the Bottoms isn't known.

But, it is given that the distillate is expected to contain 90% of the butane in the feed

Component balance for butane, based on this information

Butane in the distillate = 90% of butane in feed

0.95D = 90% × 0.20F = 0.18F

Butane in the distillate = 0.95D = 0.18F

D = 0.1895F = 0.1895 × 100 = 18.95 moles

The composition of the distillate can then be rewritten as

Butane = 0.95D moles = 0.95×18.95 = 18 0025 moles

Pentane = 0.04D moles = 0.04×18.95 = 0.758 moles

Hexane = 0.01D moles = 0.01×18.95 = 0.1895 moles

From the overall balance,

100 = B + D

B = 100 - D = 100 - 18.95 = 81.05 moles

Hence, the amount of each component in the Bottoms now will be the amount in the feed minus the amount in the distillate

Butane

20 - 18.0025 = 1.9975 moles

Percent compositon = (1.9975/81.05) = 0.0246 = 2.46%

Pentane

35 - 0.758 = 34.242 moles

Percent composition = (34.242/81.05) = 0.4225 = 42.25%

Hexane

45 - 0.1895 = 44.8105 moles

Percent composition = (44.8105/81.05) = 0.5529 = 55.29%

Please note that, irrespective of the assumed basis for the total number of moles in the feed, the molar composition of the bottoms obtained, remains the same.

Hope this Helps!

Answer:

1.47

Explanation:

1) Avogadro number is: 6.022*10²³ molecules per mol;

2) if 6.022*10²³ molecules are in 1 mol, then 4.11*10²³ molecules are in

x=6.022*10²³ / 4.11*10²³=6.022/4.11≈1.47 moles.

Disaccharides are sugars made up of two saccharides units linked together by a COC bond.

Like any other carbohydrate, disaccharides serve as the body's energy source. Disaccharides are converted by our bodies into simple sugars (simple sugars) for the small intestine to absorb when we ingest meals containing them.

Disaccharide, commonly known as double sugar, is any material made up of two simple sugar molecules (monosaccharides) joined together.

To know more about disaccharides visit:

https://brainly.com/question/16580858

#SPJ1

Answer:

Speed

Explanation:

That is what I believe the word to the definition, How far something moves in a specific amount of time, but you'd have to providea picture of the list of words for me to be sure...

Answer:

3.93g are recovered

Explanation:

Pb(NO3)2 reacts with KCl as follows:

Pb(NO3)2 + 2KCl → 2KNO3 + PbCl2

To solve this question we need to find the moles of each reactant in order to find the limiting reactant:

Moles Pb(NO3)2 -Molar mass: 331.2 g/mol-

5.72g * (1mol/331.2g) = 0.01727 moles

Mole KCl -Molar mass: 74.5513g/mol-

5.85g * (1mol/74.5513g) = 0.07847 moles

For a complete reaction of 0.07847 moles of KCl are required:

0.07847 moles KCl * (1mol Pb(NO3)2 / 2mol KCl) = 0.03923 moles Pb(NO3)2

As there are just 0.01727 moles, Pb(NO3)2 is limiting reactant. Assuming 100% of yield:

Moles PbCl2 = Moles Pb(NO3)2

Mass PbCl2 -Molar mass: 278.1g/mol-

0.01727 moles * (278.1g / mol) = 4.80g

As percent yield is 81.9% = 0.819, the mass of PbCl2 recovered was:

4.80g * 0.819 = 3.93g are recovered

Answer:

Uranium is used as fuel to heat water in a nuclear power plant. 

Answer:

low-enriched uranium fuel

errrrrrrrrrrrrreeeeeeeeeeeerrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

Use science in any way you must follow certain steps to reach certain things  are scientific method.

The scientific method included the following process:

These are the process involved in the scientific method .Scientific method is used in the process of experimentation that helps to explore observations and answers the question.

Science is the application of knowledge and understanding the natural and social world.

To learn more about scientific method here

https://brainly.com/question/7508826

#SPJ1

Answer: Atoms of oxygen in 30.5 grams of Fe2O3 = 7.65 x 10^22 atoms

Explanation: To determine the number of atoms of oxygen in 30.5 grams of Fe2O3, we first need to calculate the number of moles of Fe2O3, and then use the mole ratio between Fe2O3 and O atoms to calculate the number of O atoms.

The molecular weight of Fe2O3 can be calculated by adding the atomic weights of two Fe atoms and three O atoms:

Molecular weight of Fe2O3 = (2 x atomic weight of Fe) + (3 x atomic weight of O)

= (2 x 55.85 g/mol) + (3 x 16.00 g/mol)

= 159.69 g/mol

So, 30.5 g of Fe2O3 is equal to:

Number of moles = Mass / Molecular weight

= 30.5 g / 159.69 g/mol

= 0.191 moles

The mole ratio between Fe2O3 and O atoms is 3:2. This means that for every 3 moles of Fe2O3, there are 2 moles of O atoms. Therefore, the number of moles of O atoms in 0.191 moles of Fe2O3 is:

Number of moles of O atoms = 2/3 x 0.191 moles

= 0.127 moles

Finally, we can use Avogadro's number to convert the number of moles of O atoms into the actual number of O atoms:

Number of O atoms = Number of moles x Avogadro's number

= 0.127 moles x 6.022 x 10^23 atoms/mol

= 7.65 x 10^22 atoms

Therefore, there are 7.65 x 10^22 atoms of oxygen in 30.5 grams of Fe2O3.

There are 237. 5 g of Sulfur,S in 475 g of SO2?

From the question, we can say that

Therefore,

The molar mass for SO2 = 32 + (16 × 2) g/mol  = 64 g/mol

Now,

If 1 mole of SO2 contains 1 mole of S

Then 64 g of SO2, will contain 32g of S;

Such that

475 g of SO2 will give { \(\frac{ 32g of S) ( 475 g of SO2)}{64 of SO2}\) }  = 237. 5 g of Sulfur.

Learn more about molar mass here :https://brainly.com/question/18291695

Alpine glaciers create or widen valleys by ejecting dirt and other objects in their path. Aside from Australia, they are spread across every landmass in high piles.

What kind of landmass is that?

An landmass is a group of land that is typically divided by an ocean, causeway, or canal. America and Latin America, which are divided by a canal, are two examples of landmasses. It is possible to extend this brief article about a location or feature.

What is the world's largest landmass?

The largest continent, Asia, runs from the western Pacific Ocean to the eastern Mediterranean Sea. Asia is home to more than 40 nations. China, India, and Indonesia are a few of the most populous nations on the planet.

To know more about landmass visit:

https://brainly.com/question/20914115

#SPJ1