pls show ur work will mark the brainliest

Answer:

Comprehensive Two-dimensional gas chromatography, or GCxGC is a multidimensional gas

Answer:

...

Explanation:

Answer:

A. It makes the edges of the rock more jagged over time.

Explanation:

Abrasion makes rocks with sharp or jagged edges smooth and round. If you have ever collected beach glass or cobbles from a stream, you have witnessed the work of abrasion.

Answer:

They form a double bond

Explanation:

The answer is refining which is c

Answer:

0.25 M

Explanation:

Answer:

should you prove this or explain or pick the correct answer

According to the kinetic molecular theory, collisions between gas particles in a sample of an ideal gas: Transfer energy between the gas particles. Hence, option 4 is correct.

According to kinetic theory of gases, when gas particles collide with each other, they transfer energy between themselves. Some collisions will result in the transfer of kinetic energy from one particle to another, while others may result in a transfer of potential energy due to the intermolecular forces between the particles.

However, the total energy of the gas particles is conserved during these collisions, so there is no net loss or gain of energy by the gas sample as a whole.

The kinetic molecular theory also states that ideal gas particles do not have any significant attractive or repulsive forces between them, so option 2 is incorrect.

Additionally, collisions between gas particles do not increase the energy content of the gas sample (option 1) or result in a net loss of energy by the gas sample (option 3).

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Answer:

if 12 moles are produced then it came 24 moles of Al(OH)3

Explanation:

The number that is written in front of the molecule is called stoichiometry, represents the number of mole of that molecule. 12 moles of [tex]Al_{2}O__{3}[/tex] is produced by 24 mole of Aluminum.

Stoichiometry is a part of chemistry that help us in making relationship between reactant and product from quantitative aspects. It tells about how much part of reactant will be required to produce particular product. Unitary method is always applied in case of stoichiometry chemistry.

The balanced equation is

[tex]4Al+3O_{2}\rightarrow 2Al_{2}O__{3}[/tex]

The mole ratio between  [tex]Al_{2}O__{3}[/tex] and Al is 2:4, means to produce 4 moles of [tex]Al_{2}O__{3}[/tex] we need 2 moles of Aluminum

4 mole of [tex]Al_{2}O__{3}[/tex]= 2 moles of Aluminum

1 mole of [tex]Al_{2}O__{3}[/tex]=(1÷2) moles of Aluminum

12 moles of [tex]Al_{2}O__{3}[/tex]= 24 mole of Aluminum

Therefore 12 moles of [tex]Al_{2}O__{3}[/tex] is produced by 24 mole of Aluminum.

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Explanation:

The differences between whales, wolves, and the Mystery Fossil may have evolved because the ancestors of each evolved in different environments. Populations can become separated into different environments. ... Over generations, two populations of the same species can become more and more different.

Answer:

If there are fewer births than deaths, then the size of the population will decrease. Organisms in consumer populations get energy storage molecules from eating organisms in resource populations. The more energy storage molecules available to a population, the more the organisms in that population can reproduce.

A change to the green-leaf population caused the wee-bug population to change in size because wee-bug depends upon green leaves for their food.

It is a group of organism of the same species living in a particular area.

The increase or decrease in the population of organisms depends upon factors such as available resources and predator population.

The green leaf is the food resource for wee bugs hence if the green leaf population increase then the wee bug's population will also be increased.

Therefore, a change to the green-leaf population caused the wee-bug population to change in size because wee-bug depends upon green leaves for their food.

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Answer:

A

Explanation:

the chloroplast holds the water , nutrients

Answer:

[tex]\boxed {\boxed {\sf D. \ Vacuoles}}[/tex]

Explanation:

First, let's examine each answer choice.

A. Chloroplasts

B. Lysosomes

C. Mitochondria

D. Vacuoles

Since the question asks us to pick the sac-like structures that store materials in cells, choice D: vacuoles is correct.

Answer:

The volume will be 568.89 mL.

Explanation:

Boyle's law says that "The volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure"

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

or P * V = k

Gay-Lussac's law indicates that when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases. That is, the pressure of the gas is directly proportional to its temperature. Gay-Lussac's law can be expressed mathematically as follows:

[tex]\frac{P}{T}=k[/tex]

Where P = pressure, T = temperature, K = Constant

Finally, Charles's law indicates that as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. In summary, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:

[tex]\frac{V}{T}=k[/tex]

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

[tex]\frac{P*V}{T} =k[/tex]

Studying an initial state 1 and a final state 2, it is fulfilled:

[tex]\frac{P1*V1}{T1} =\frac{P2*V2}{T2}[/tex]

In this case:

Replacing:

[tex]\frac{960 mmHg*550 mL}{473K} =\frac{830 mmHg*V2}{423 K}[/tex]

Solving:

[tex]V2=\frac{423 K}{830 mmHg} *\frac{960 mmHg*550 mL}{473K}[/tex]

V2= 568.9 mL

The volume will be 568.89 mL.

Answer: A

1.68 N

Explanation:

F = ma = 0.024(70.0) = 1.68 N

Answer:

The candy coating is made up of coloring and sugar. The coloring and the sugar molecules both have positive and negative charges on them. The water molecule has positive and negative charges so it can attract and dissolve the color and sugar pretty well.

Explanation:

go to https://www.acs.org/content/acs/en/education/whatischemistry/adventures-in-chemistry/experiments/dissolving-m-ms.html#:~:text=The%20candy%20coating%20is%20made,color%20and%20sugar%20pretty%20well.

Answer:

0.031moles

Explanation:

ok so it would help if I knew the marks but 1 mole = 1000L so if the volume was 31L then if you convert you will get that answer

The moles of gas at the given sample of gas is 1.7 moles.

Ideal gas equation gives idea about the behavior of gas at different condition & represented as:

PV = nRT, where

On putting all these values, we get moles as:

n = (1.2)(31) / (0.082)(256) = 37.2 / 20.9

n = 1.7 moles

Hence required moles of gas is 1.7 mole.

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Answer:

pOH = 9.

Explanation:

The inverse relationship between the pH and pOH of any given solution can be written as:

pH = 14 - pOH

Or conversely:

pOH = 14 - pH

With the above information in mind we can use the given pH to calculate the pOH:

pOH = 14 - pH

pOH = 14 - 5

pOH = 9

Thus, black coffee has a pOH of 9.

Answer:

graph title, label for the y axis, and legend explaining the orange and blue colors

Explanation:

Answer:

48 grams

Explanation:

The chemical equation for the reaction is the following:

2 H₂ + O₂ → 2 H₂O

That means that 2 moles of H₂ react with 1 mol of O₂ to produce 2 moles of H₂O. We convert the moles of oxygen (O₂) by using the molecular weight (MW) as follows:

MW(O₂) = 16 g/mol x 2 = 32 g/mol

mass of O₂ = 1 mol x 32 g/mol = 32 g

So, we have the following stoichiometric ratio: 32 g O₂/2 moles H₂. We have 3 moles of hydrogen (H₂), so we multiply the moles by the stoichiometric ratio to calculate how many grams are needed:

3 moles H₂ x 32 g O₂/2 moles H₂ = 48 g O₂

Therefore, 48 grams of O₂ are needed to react with 3 moles of H₂.

Answer:

V1/T1=V2/T2

4.20L/321.2K=x/288.4K

multiply both side by 288.4

1211.28/321.2=x

x=3.77L

Option 3 13.15 is the  correct answer.

Charles's law exists as an experimental gas law that explains how gases tend to expand when heated. A modern statement of Charles's law exists: When the pressure on a sample of a dry gas exists held constant, the Kelvin temperature and the volume will be in direct proportion.

According to Charles law

The volume occupied by a fixed amount of gas is directly proportional to its absolute temperature, if the pressure remains constant.

[tex]V1/T1=V2/T2[/tex]

Where,

[tex]V1[/tex]= first volume

[tex]V{2}[/tex] = second volume

[tex]T{1}[/tex] = first temperature

[tex]T{2}[/tex]= second temperature

Here, at constant pressure,

[tex]V1/T1=V2/T2[/tex]

[tex]V1[/tex]=4.20 L

[tex]V2[/tex]= x

[tex]T1[/tex]=321.2 K

[tex]T2[/tex]=288.4 K

Therefore, [tex]V1/T1=V2/T2[/tex]

4.20L/321.2K=x/288.4K

1211.28/321.2=x

x=3.77L

Thus option a is correct.

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Answer:

Causative/sensitizing factors of pancreatic injury include refluxed bile acids, alcohol, and pH. They largely mediate downstream events such as elevated intracellular Ca2+ via influx through TRPC3 channels and release from IP3 and ryanodine-sensitive Ca2+ stores.

Explanation:

Answer:

it can result in an increasing risk of the accumulation of decomposition products, self-heating (from the heat released by the slow decomposition reactions)

Magnesium can result in an increased risk of the accumulation of decomposition products, self-heating (from the heat released by the slow decomposition reactions)

Ammonium nitrate is used commonly in fertilizers; in pyrotechniques, herbicides, and insecticides; and in the manufacture of nitrous oxide.

When ammonium nitrate is heated, it decomposes exothermically into nitrous oxide and water.

Hence, Magnesium can result in an increased risk of the accumulation of decomposition products, self-heating (from the heat released by the slow decomposition reactions)

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Answer:

Explanation:

If it is at a higher energy level, it is said to be excited, or any electrons that have higher energy than the ground state are excited. They are then called degenerate energy levels.

Answer:

11

Explanation:

Answer:

the answeer is definitely silicon.

Answer:

Rubidium Chloride is an excellent water soluble crystalline Rubidium source for uses compatible with chlorides.

Compound Formula: ClRb

Melting Point: 715 °C

Boiling Point: 1,390 °C

Explanation: