What does volume measure? name two different units that might be used to measure volume.

Answer:

C

Explanation:

The structure the arrow is pointing to is the nucleus and it helps store genetic material (DNA) in living cells.

Organelle is a specialized structure found inside cells that carries out a specific life process. examples are ribosomes, vacuoles, nucleus etc.

The nucleus is the large membrane-enclosed organelle found in eukaryotic cells which contains genetic material.

The nucleus is located at the center of living cells and it functions to store genetic material called DNA. The DNA is transferred to offsprings for inheritance of traits.

According to this question, a microscopic image of a cell is shown. The arrow pointed to the nucleus of the cell.

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Heat transfer is the process of thermal energy moving from one object to another due to a temperature difference. There are three types of heat transfer: conduction, convection, and radiation.

Conduction is the transfer of heat through direct contact between two objects, such as a pot on a stove or a person touching a hot surface. A common application of conduction is in cooking, where heat is transferred from a stove or oven to the food being cooked.

Convection is the transfer of heat through the movement of fluids, such as air or water. A common application of convection is in heating and cooling systems, where warm or cool air is circulated through a building to regulate its temperature.

Radiation is the transfer of heat through electromagnetic waves, such as heat radiating from a fire or the sun. A common application of radiation is in solar panels, which convert sunlight into usable energy.

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Note: The correct question would be as bellow,

What is heat transfer and what are the 3 types of heat transfer Support your answer with applications for each type?

The correct set of coefficients, in order, to balance the equation is: 3, 9, 3, 6. Therefore, option (A) is correct.

To balance the chemical equation \(Al_{2}O_{3}\)+ Fe → \(Fe_{3}O_{4}\) + Al, we need to determine the coefficients that ensure the same number of atoms for each element on both sides of the equation.

In the given answer, A. 3, 9, 3, 6, the coefficients indicate that three molecules of aluminum oxide (\(Al_{2}O_{3}\)) and nine atoms of iron (Fe) react to form three molecules of iron(III) oxide (\(Fe_{3}O_{4}\)) and six atoms of aluminum (Al).

By balancing the equation with these coefficients, we ensure that the number of atoms of each element is conserved. This means that no atoms are gained or lost during the reaction, satisfying the principle of conservation of mass.

Balancing equations is crucial for accurately representing chemical reactions, as it ensures that the reactants and products are in the correct stoichiometric ratios and reflects the conservation of atoms.

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Answer:

the deeper you go down in to the rock the older the fossils get.

Explanation:

layering can provide evidence because the deeper you go down in to the rock the older the fossils get. So when the scientists go in to the rock they can say what animals lived in that time and what animal was the oldest.

Answer:

a. Ocean currents influence many marine climates.

c. The North Atlantic Drift gives Ireland a warm climate for its latitude.

a & c

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The volume of dry hydrogen gas at standard atmospheric pressure (which is typically defined as 1 atm or 101.325 kPa) depends on the number of moles of hydrogen gas present. The ideal gas law, PV = nRT, relates the pressure (P), volume (V), number of moles (n), and temperature (T) of an ideal gas. Assuming standard temperature and pressure (0°C and 1 atm), one mole of any ideal gas occupies a volume of 22.4 L. Therefore, to find the volume of dry hydrogen gas at standard atmospheric pressure, we need to know how many moles of hydrogen gas we have.

For example, if we have 1 mole of dry hydrogen gas at standard atmospheric pressure, the volume would be 22.4 L. If we have 0.5 moles of dry hydrogen gas, the volume would be 11.2 L. And so on.

Answer:

Explanation:

Sodium has 1 electron in its outermost shell, and chlorine has 7 electrons. ... If sodium can transfer it's "spare" electron to chlorine (as shown above), both atoms will satisfy their full outer shell requirements, and an ionic bond will be formed. They combine as atoms, and separate as ions. When sodium and chlorine atoms come together to form sodium chloride (NaCl), they transfer an electron. ... Because the sodium ion has a positive charge, and the chlorine ion has a negative charge, they are attracted to each other, and form an ionic bond.

When a sodium atom transfers an electron to a chlorine atom, forming a sodium cation (Na+) and a chloride anion (Cl-), both ions have complete valence shells, and are energetically more stable. ... The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy.

Since there is no more gas to vent into the suit, the suit does not vent anymore co2 out of the suit as he uses up the oxygen he makes more co2 this will result in Hypoxemia or respiratory failure.

Hypoxemia is characterised by low amounts of oxygen in the blood. It causes headaches, trouble breathing, a high heart rate, and blue skin.

Respiratory failure is a condition in which your blood lacks oxygen or contains too much carbon dioxide. Both difficulties might occur at times.

When you breathe, oxygen enters your lungs. The oxygen enters your bloodstream and travels to your organs. Your organs, such as your heart and brain, require oxygen-rich blood to function properly.

Another aspect of breathing is exhaling carbon dioxide from the bloodstream. Too much carbon dioxide in your blood can be harmful to your organs.

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In the event that the SIM (Sulfide Indole Motility) medium is utilized entirely for testing motility and indole generation, the ingredients that can be killed are those particularly related to the discovery of hydrogen sulfide (H2S) generation. These ingredients incorporate ferrous sulfate or ferrous ammonium sulfate, which are utilized to identify the arrangement of dark precipitates showing the presence of H2S.

In the event that the testing is exclusively for motility and sulfur reduction, the ingredients that can be killed are those related to the discovery of indole generation. Indole isn't directly included in sulfur reduction, so the following fixing can be removed:

Bacteria have the enzymes vital to utilize citrate as a source of vitality and carbon, but not all microbes can develop on citrate media. The failure of a few microbes to develop on citrate media can be clarified by the taking after reasons:

It's vital to note that the capacity to develop on citrate media is regularly evaluated utilizing the Simmons citrate agar test, which contains sodium citrate as the sole source of carbon.

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Gain ; Negative.

................................

Answer:

gain; negative

Explanation:

Cl is nonmetal

No idea what this is for, but I hope you have an amazing day:)

Answer: 2% w / w solution means grams of solute is dissolved in 100 grams of solution. ... 5% v / v solution means 5 ml of solute is dissolved 100 ml of solution.

Explanation:

so (w/w)% u would need a number to use it.

Answer:

Does the nature of intermolecular forces present in different substance affect their boiling points?

Explanation:

In every scientific research there must be a dependent and an independent variable. These variables are easily deduced from the scientific question that is being investigated.

If a student is comparing the boiling points of different substances having different intermolecular forces, then his or her aim is to establish a relationship between the nature of intermolecular forces present (independent variable) and the observed boiling point of the substance (dependent variable).

This is aptly shown by the research question ' Does the nature of intermolecular forces present in different substance affect their boiling points?'

Options:

Is boiling point affected by the strength of particle attraction?

Is boiling point affected by the mass of the sample?

Is boiling point correlated to melting point?

Is boiling point the temperature at which a substance changes its state?

Explanation:

ADD THE OPTIONS PEOPLE OR YOU GET NON RELATED AWNSERS LIKE THE ONE ABOVE

Javier made a mistake on his list which best describes the mistake Javier made that is Javier switched the descriptions for unbalanced and balanced forces. ​

The forces acting on a body are said to be balanced if the total force of all the forces acting on it equals zero. Let's examine a few instances of balanced forces to better comprehend how the motion of the body is unaffected.Unbalanced forces are those operating on a body when the net force acting on the body is greater than zero. The body alters its state of motion when unbalanced forces operate on it. To better comprehend the nature of imbalanced forces, let's look at some instances.

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Answer:

D

Explanation:

I learned this last year.

Answer:

Oxygen is an element.

Explanation:

Out of the choices listed, oxygen is the only element. The other choices are incorrect because air is a mixture of nitrogen, oxygen, carbon dioxide, water vapors, and some other gases; water is a compound of hydrogen and oxygen; and sodium chloride is a compound of sodium and chloride ions; meanwhile, oxygen is a pure element.

1. The type of polymer that would you obtain if sorbitol is a polyol.

2a. The use of starch-borate and starch-glycerol polymers for the encapsulation of pharmaceutical drugs or pesticides would have a number of beneficial effects.

2b. Yes, these polymers are considered to be biodegradable.

1. The type of polymer that would you obtain if sorbitol (a sugar alcohol found in sugar-free gum) was used as a plasticizer additive is a polyol. This is because sorbitol is a polyol, which is a substance used to modify the properties of polymers. The process of polymer modification involves adding polyols to the polymer matrix, which helps to reduce the glass transition temperature of the polymer. Sorbitol can be used as a plasticizer addictive because it is a natural and non-toxic compound that is biodegradable.

2a. The use of starch-borate and starch-glycerol polymers for the encapsulation of pharmaceutical drugs or pesticides would have a number of beneficial effects. These polymers are natural and non-toxic, and they are biodegradable, which means that they do not pose a risk to the environment. Additionally, they can be used to modify the properties of the drugs or pesticides, making them more effective and reducing their toxicity.

2b. Yes, these polymers are considered to be biodegradable. This is because they are made from natural materials that can be broken down by biological processes. Starch-borate and starch-glycerol polymers are particularly attractive for use in biodegradable materials because they are non-toxic and biocompatible. They can be used in a variety of applications, including packaging materials, agricultural films, and medical devices, where their biodegradability is an important factor.

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The resulting volume of the tire would be 1.1 L

According to this law, the volume of a given gas is directly proportional to its temperature, provided that the pressure remains constant.

The law can be presented mathematically as;  

\(\dfrac{V_1}{T_1} =\dfrac{V_2}{T_2}\)

In this case, V1 = 1.0 L, T1 = 22 °C (295 K), T2 = 52 °C (325 K).

\(V_2=\dfrac{V_1T_2}{T_1}\)V

\(V_2=\dfrac{1\times 325}{295}=1.1\ L\)

Hence the final volume of the tire will be 1.1 L

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Answer nic configuration of excited state of Neon will be 1s22s22p53s1.

Explanation:

The concentration of Ca(OH)2 in the solution is approximately 1.33 x 10^(-6) M.

To find the concentration of Ca(OH)2 in a solution with a pH of 8.57, we need to use the concept of pOH, which is the negative logarithm of the hydroxide ion concentration ([OH-]). The pOH can be calculated by subtracting the pH from 14, which gives us 14 - 8.57 = 5.43.

Since Ca(OH)2 produces two OH- ions for every molecule of Ca(OH)2 that dissolves, the concentration of OH- ions will be twice the concentration of Ca(OH)2. Thus, we have [OH-] = 2x, where x represents the concentration of Ca(OH)2.

Taking the antilogarithm of the pOH, we find that [OH-] = 10^(-pOH) = 10^(-5.43).

Since [OH-] = 2x, we can write 2x = 10^(-5.43) and solve for x.

x = (10^(-5.43))/2 ≈ 1.33 x 10^(-6) M

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Answer: The partial pressure of neon in the mixture is 263 mm Hg

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

\(p_{total}=p_{He}+p_{N_2}+p_{Ne}\)

Given : \(p_{total}\) =total pressure of gases = 815 mm Hg

\(p_{He}\) = partial pressure of helium = 201 mm Hg

\(p_{N_2}\) = partial pressure of nitrogen = 351 mm Hg

\(p_{Ne}\) = partial pressure of Neon = ?

putting in the values we get:

\(815mm Hg=201 mm Hg+351 mm Hg+p_{Ne}\)  

\(p_{Ne}=263mmHg\)

The partial pressure of neon in the mixture is 263 mm Hg

Answer:

A

Explanation:

Martin's statement is testable because it can be answered using an experiment. Option C.

Research questions are questions raised during observations. These questions are meant to be answered during the course of the research.

Thus, the experiment must be designed in such a way that all the questions raised during observations are answered by the results of the experiment.

Martin is asking how fast water and nutrients move up the stem of a carnation. A carnation is a plant.

The rate at which water and nutrients move up the stem of a plant is something that can be determined by performing a relevant experiment using the plant in question. This has actually been done in several experiments in the past.

Thus, the question asked by Martin is testable using an experiment.

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Answer: C

Explanation:

The Earth's surface is not covered with the same materials ; however, some areas share similar materials.Several drilling sites have been dug in various regions of the planet to analyze the Earth's surface.

Each drilling site is unique, with differing characteristics and results. Despite these differences, all of the drilling sites analyzed offer scientists a more in-depth knowledge of the Earth's surface.In essence, the scientific drilling sites each had different lithologies, stratigraphies, and geologies. Each site had different types of rocks, depths, and ages, which led to varying drilling conditions, depths, and equipment used. Different types of equipment were also used to reach the depths required, which was a significant difference in each drilling site.The scientific drilling sites also had different purposes. Scientists had specific goals they wanted to achieve at each location. For example, the scientific drilling site in the Iceland region was focused on analyzing a unique layer of igneous rocks. The primary objective was to investigate the formation of the rock layer.The same materials were not found at each scientific drilling site.

Still, they had some similarities. They all provided geologists with vital information about the Earth's surface. The data provided from each drilling site was used to piece together the Earth's geologic history and how it has changed over time.

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Answer:

Crushing or grinding increases the surface area of the salt that is exposed to the molecules of water. Stirring increases the speed at which the particles of salt come in contact with the water molecules.

Answer:

129.50 N/kg

Explanation:

125 kg + 4.50 N

129.50 N/kg

Explanation:

The movement of an object involves two forces: the force applied to the body which causes acceleration of the object called kinetic force and the force that opposes it called the friction. These forces are involved in the movement of the book as:

1. When a book is kept on the desk, since no external force is applied to the book therefore the book remains at rest.

2. When the desk is placed in an inclined position, the inclined position causes the sliding of the book but as the book moves down the force of friction increases which causes the book to come at rest. This force of friction is known as the sliding force.

The movement of the book on the table has been attributed to the applied force in the inclined position, while the slowing down of the book's motion contributes to the friction.

Force can be defined as the pressure exerted to produce the motion of the object. The friction has been the stopping force that stops the motion of the object.

The inclination of the table resulted in the application of tangential force to the book, that favors the motion of the object.

The lowering of the table results in the stopping of the motion of the book. The lesser stopping force of the book motion was favored with the frictional force between the book and the table.

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