in the atmosphere of the sun, which of these elements are least likely to be ionized? group of answer choices hydrogen and helium helium and calcium calcium and many heavier atoms unobtainium

Answer:

Atoms, and chemical make up

Explanation:

Our bodies and any other terrestrial body are formed with atoms, those same atoms from a chemical make-up that creates items, such as water with 2 hydrogen atoms and 1 oxygen atom is formed. In essence, we all are about atoms and chemical makeup is the instruction on how to build us

Answer:

A box

Explanation:

In quantum mechanics, the atom is metaphorically described as a box. In fact, the Schrödinger wave equation is based on the three dimensional box metaphor of the atom.

Thus, a box provides a convenient treatment of the atom as it represents the fundamental components of the problem of atomic structure, hence the answer.

C. A box

Thus, the correct option is C.

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Answer:

Chemical formula: HNO₃

Melting point: −42 °C (−44 °F; 231 K)

Molar mass: 63.012 g·mol−1

Solubility in water: Miscible

Explanation:

When Conc HNO3 acid leaks into seawater presumed to be largely consisting of Sodium Chloride and other dissolved salts, I won't consider it as a chemical reaction rather it is a Physical Change. I presume this activity as a mixture when the acid been the solute becomes a contaminants

The mass of 0.105 mole of sucrose is 36 g.

Number of moles of sucrose (C12H22O11) = 0.105 moles

Mass of 1 mole of sucrose (C12H22O11) = 342.3 g

According to the Avogadro’s Law, “Equal volumes of all gases, at the same temperature and pressure, have the same number of molecules.”This law helps to establish the relationship between the number of moles and the mass of the substance.

The mass of one mole of any substance is called its molar mass.The molar mass of sucrose (C12H22O11) is calculated by summing up the masses of all the atoms present in its molecular formula.

n = Number of moles of sucrose (C12H22O11)

M = Mass of 1 mole of sucrose (C12H22O11)

The formula for the calculation of mass of sucrose is, m = n × M

Putting the values of n and M, we get, m = 0.105 mol × 342.3 g/mol

M = 36.0 g

Therefore, the mass in grams, of 0.105 mole of sucrose (C12H22O11) is 36.0 g.

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In space light waves move fastest, which is C. This is due to the fact that space is completely open and unrestricted and contains nothing that would do so.

What is Light waves?
The region of the electromagnetic spectrum that the human eye perceives as light, or visible light, is made up of electromagnetic radiation. Typically, visible light is characterised as having wavelengths between 400 and 700 nanometers (nm), or frequencies between 750 and 420 terahertz, which fall between the longer-wavelength infrared and the shorter-wavelength ultraviolet (with shorter wavelengths). The term "light" in physics can be used to more broadly describe electromagnetic radiation of any wavelength, whether or not it is visible. Gamma rays, X-rays, microwaves, and radio waves are all forms of light in this sense. Intensity, propagation direction, frequency or wavelength spectrum, and polarisation are the four main characteristics of light.

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Answer:

Introduction. Alongside fat and protein, carbohydrates are one of the three macronutrients in our diet with their main function being to provide energy to the body. They occur in many different forms, like sugars and dietary fibre, and in many different foods, such as whole grains, fruit and vegetables.

Explanation:

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The total number of protons are 6 and the total number of neutrons are 7 in an atom of the naturally occurring carbon isotope with the largest mass number.

Isotopes of almost all elements save hydrogen get their names from the mass number of their nuclei. Carbon atoms, for instance, have a mass number of 12 since the sum of their six protons and six neutrons equal 12. As a result, these atoms are referred to as carbon-12. The atomic mass of carbon atoms with seven neutrons is 13, which is equal to six protons plus seven neutrons. The isotope known as carbon-13 can be found in these atoms.

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Answer:

B.) Adding a source of carbon dioxide to the water.

Explanation:

I had that question too.

P2 = 54.6 kPa

Explanation:

Given:

V1 = 10.0 L. V2 = 50.0 L

P1 = 273 kPa. P2 = ?

We can use Boyle's law to solve this problem.

P1V1 = P2V2

Solving for P2,

P2 = (V1/V2)P1

= (10.0 L/50.0 L)(273 kPa)

= 54.6 kPa

In a rigid tank with a volume of 1 m^3, carbon monoxide (CO) is contained. The tank is equipped with a paddle wheel that transfers energy to the CO at a constant rate of 14 W. The question asks us to determine the increase in CO's specific enthalpy if there are no changes in kinetic and potential energy.

First, we need to calculate the total power supplied to the CO. Since power is the rate of energy transfer, and it is constant at 14 W, the total energy transferred over time can be calculated using the formula: energy = power × time.

Next, we can calculate the change in specific enthalpy (Δh) using the formula:

Δh = energy / mass.

Finally, we can substitute the given value of 10 kJ/kg for Δh, and solve for the mass of CO using the formula: mass = energy / Δh.

The total energy transferred to the CO can be calculated as energy

= 14 W × time.

To find the change in specific enthalpy (Δh), we can use the formula

Δh = energy / mass.

Given that the change in specific enthalpy is 10 kJ/kg, we can solve for the mass of CO using the formula mass = energy / Δh.

By substituting the given value of 10 kJ/kg for Δh, we can find the mass of CO.

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The strength of a bond can be calculated by dividing the energy required to break the bond by the number of bonds broken. In this case, if 0.5 kilocalories of energy are required to break 6 x 10^23 bonds of a particular type, the strength of the bond is approximately 8.33 x 10^-24 kilocalories per bond.

To calculate the strength of the bond, we divide the energy required to break the bond by the number of bonds broken. In this case, the energy required is 0.5 kilocalories and the number of bonds broken is 6 x 10^23. Dividing the energy by the number of bonds gives us the strength of the bond.

Strength of the bond = Energy required / Number of bonds broken

                   = 0.5 kilocalories / (6 x 10^23 bonds)

                   ≈ 8.33 x 10^-24 kilocalories per bond

Therefore, the strength of the bond is approximately 8.33 x 10^-24 kilocalories per bond. This value represents the energy required to break a single bond of the particular type.

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if the intermolecular forces between molecules increased for a given fluid, each property would be occur: Boiling Point, Viscosity, Surface Tension and Vapor Pressure.

If the intermolecular forces between molecules in a given fluid increase while maintaining a constant temperature, the following effects will occur:

1. Boiling Point: The boiling point will increase because stronger intermolecular forces require more energy to break, thus needing higher temperatures to reach the boiling state.

2. Viscosity: Viscosity will increase as stronger intermolecular forces lead to greater resistance between molecules, making it harder for the fluid to flow.

3. Surface Tension: Surface tension will increase due to stronger intermolecular forces causing molecules to be more attracted to each other, resulting in a more stable and resistant surface.

4. Vapor Pressure: Vapor pressure will decrease as the enhanced intermolecular forces will make it more difficult for molecules to escape from the liquid phase to the gas phase

. 5. Pressure: Assuming the fluid is in a closed container, the pressure will remain constant since it depends on temperature and volume rather than intermolecular forces.

However, if the fluid is subjected to external pressure, it may require higher pressure to compress the fluid due to the increased intermolecular forces.

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Answer:

false

Explanation:

All living things use cellular respiration to turn organic molecules into energy. Cellular respiration is the chemical process of breaking down food molecules in order to create energy in the form of adenosine triphosphate (ATP). ... This is called aerobic respiration.

Cellular respiration takes place in all living organism despite the level of organism and produces carbon dioxide and water.

Cellular respiration is the process of breaking food or glucose by the action of biological catalysts to form carbon dioxide and water. This process goes through several stages including some electron transport chains

There are both aerobic and anaerobic respiration. Aerobic respiration takes place in the presence of oxygen whereas anaerobic respiration needs no oxygen.

Every living organism consume food and digest and from the food the cell makes energy by cellular respiration. Hence, the fact that all living organism do cellular respiration is true.

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The concentration (m/m percent) of the solution is 11.53%.

To find out the concentration (m/m percent) of the solution, first we need to calculate the mass of the solution. Then we can calculate the concentration (m/m percent) of the solution.

Given the mass of Potassium chloride (KCl) = 10.50 g and mass of Water (H2O) = 80.60 g

Therefore, the total mass of the solution = 10.50 g + 80.60 g = 91.10 g

Now, we can calculate the concentration (m/m percent) of the solution using the following formula:

Concentration (m/m percent) = (mass of solute / mass of solution) x 100%

Concentration (m/m percent) = (10.50 g / 91.10 g) x 100% = 11.53%

Therefore, the solution has a concentration in (m/m percent) of 11.53%.

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Answer:

Yes

Explanation

I learned it in science class

Answer:i need help too

Explanation:

I need help yoo

Carotenoids are found in high concentrations in yellow and orange leaves or vegetables. These leaves and vegetables appear yellow or orange because of Reflect and Transmit.

Reflection and Transmission:

Reflection is the change in direction of a wave front at the interface between two different media in such a way that the wave front returns to the medium in which it was originally located. Common examples include reflections of light, sound, and water waves. According to the law of reflection, in specular reflection (e.g. a mirror) the angle at which the wave strikes the surface is equal to the angle at which it is reflected.

Transmission is defined as the process of transmitting light from any substance. Transmission is the movement of electromagnetic waves through any substance.

Example: When UV light hits a material, the electrons in the material's ground state enter a higher electronically excited state. When an electron in a higher state returns to its ground state, it transfers energy in the form of a photon.

Carotenoids

Carotenoids , also called tetraterpenoids, are yellow, orange, and red organic pigments produced by plants and algae, as well as some bacteria and fungi. Carotenoids give pumpkins, carrots, parsnips, corn, tomatoes, canaries, flamingos, salmon, lobster, shrimp, and daffodils their unique colors. All these organisms can produce carotenoids from fats and other basic organic metabolic components.

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Answer:

Protons and neutrons are located in the nucleus and have a mass of approximately 1 atomic mass unit each, while electrons are located outside the nucleus and are much lighter, with a mass of approximately 0.0005 atomic mass units. Protons are positively charged, electrons are negatively charged, and neutrons are neutral.

Explanation:

:)

Hope this helps

Answer: here, for those of you who can't see it upright

Explanation:

Each element have its own electronic configuration.The first given configuration is with 4 electrons represents beryllium (Be) and the second one with 9 electrons is Fluorine (F) and the last one with 11 electrons is sodium (Na).

An orbital is a circular path with fixed energy through which electrons in an atom revolving around the nucleus. Electrons are filled in these orbitals based on the energy levels.

Lowest energy orbitals are filled first and the higher energy orbitals are filled last. Each orbital has a specific capacity to accommodate electrons. S orbital fill only two electrons, p orbital fill 6 electrons d orbital 10 electrons and f orbital fills 14 electrons.

The first electronic configuration have a total 4 electrons thus the element with atomic number 4 is Beryllium (Be) and the second configuration have 9 electrons thus it is Fluorine (F).

The last configuration represented as slashes have a total of 11 electrons. The element with 11 electrons is sodium (Na).

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Answer:

Hydrocarbons are the chemical compound that contain the elements carbon and hydrogen only.

They are compounds that are obtained from the fossil fuel crude oil by a process called fractional distillation.

MgO > CaO > NaF > KCl are the following compounds with decreasing order of lattice energy.

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Any orderly configuration of points and objects over a region or in space, such as the geometric configuration of the atoms within a crystal. Fissionable material is arranged geometrically in a nuclear reactor and is also referred to as a "space lattice."

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Answer:you would need to add 36 mL of saline to achieve a continuous treatment lasting 3 hours using a nebulizer with an output of 12 mL/hr.

Explanation:

To calculate the total dosage of Albuterol solution, we need to multiply the concentration of the solution (2.5 mg/0.5 mL) by the total volume of the solution used (4 vials, assuming each vial is 0.5 mL):

Total dosage of Albuterol = (2.5 mg/0.5 mL) * (0.5 mL/vial) * 4 vials

Total dosage of Albuterol = 20 mg

Therefore, the total dosage of Albuterol solution is 20 mg.

To calculate the amount of saline that needs to be added for a continuous treatment lasting 3 hours, we can use the nebulizer's output rate of 12 mL/hr:

Amount of saline needed = Nebulizer output rate * Treatment duration

Amount of saline needed = 12 mL/hr * 3 hr

Amount of saline needed = 36 mL

To achieve a continuous treatment lasting 3 hours using the nebulizer with an output of 12 mL/hr, an additional 34 mL of saline solution would need to be added.

If each vial of Albuterol solution contains 2.5 mg in 0.5 mL, then adding 4 vials would result in a total dosage of 10 mg (2.5 mg/vial * 4 vials).

To achieve a continuous treatment lasting 3 hours using a nebulizer with an output of 12 mL/hr, we need to calculate the amount of saline solution that needs to be added.

The nebulizer has an output of 12 mL/hr, so over 3 hours, it would deliver a total volume of 12 mL/hr * 3 hrs = 36 mL.

Since we have already added the 4 vials of Albuterol solution, we subtract that volume from the total desired volume of 36 mL to determine how much saline needs to be added.

Therefore, the amount of saline to be added would be 36 mL - 2 mL (4 vials * 0.5 mL/vial) = 34 mL.

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If aluminum foil is not reacted well with CuCl2, then no chemical reaction will take place between them. This is because aluminum is a less reactive metal than copper, and it cannot displace copper from copper chloride (CuCl2) solution. As a result, aluminum foil will remain unchanged, and the CuCl2 solution will not be affected.

In case aluminum foil is added to CuCl2 solution, without proper stirring or mixing, only a portion of aluminum may react with the copper chloride solution, and the remaining aluminum will remain unchanged. This can lead to inaccurate observations and measurements of the reaction. Therefore, it is important to ensure proper mixing and stirring during any chemical reaction to ensure accurate results.

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Answer:

Energy

Explanation:

Based on the given compounds, the conductivity most similar to 1.0 M Al(NO3)3 would be (C) K3[CoCl6].

Al(NO3)3 and K3[CoCl6] both have similar conductivity because they both dissociate into ions when dissolved in water. Al(NO3)3 dissociates into Al3+ and 3NO3- ions, while K3[CoCl6] dissociates into 3K+ and [CoCl6]3- ions.

The conductivity of a solution is determined by the number of ions present, and in this case, both solutions have comparable numbers of ions contributing to their conductivity. The correct answer therefore is  (C) K3[CoCl6].

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The enthalpy change of neutralization in kJ mol−1 is given as -57.15 kJ mol−1.

The specific heat capacity of water is 4.18 J g−1 K−1. What is neutralization? A neutralization reaction is a reaction between an acid and a base that forms salt and water as products. What is enthalpy change? The heat energy exchanged between a system and its surroundings during a chemical reaction is known as enthalpy change. Specific heat capacity is a measure of a substance's heat capacity or thermal conductivity. It is defined as the amount of heat energy required to raise one gram of a substance by one degree Celsius.

Enthalpy change of neutralization = - Heat released (kJ) / Number of moles of acid

Heat released (kJ) = Mass of water × specific heat capacity × temperature rise= 100 g × 4.18 J g−1 K−1 × 3.6

K= 1504.8 J= 1.5048 kJ

Therefore, Number of moles of acid = mass of acid / molar mass of acid= 1 g / 36.5 g mol−1= 0.0274 mol

Therefore, Enthalpy change of neutralization = -1.5048 kJ / 0.0274 mol= -57.15 kJ mol−1

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The percent of calories from protein, CHO, and fat were 10.7%, 55.6%, and 33.7%, respectively.

To determine the total calories in the breakfast by multiplying the amount of each macronutrient by its calorie per gram and then adding them together.

After that, we will calculate the percentage of calories that come from each macronutrient. So, the solution is given below:

Given, Protein = 10 g

CHO = 52 g

Fat = 14 g

Now, we will calculate the calories in each of the macronutrients,

Protein Calories from protein = 10 g × 4 kcal/g = 40 kcal

CHO Calories from CHO = 52 g × 4 kcal/g = 208 kcal

Fat Calories from fat = 14 g × 9 kcal/g = 126 kcal

Now, we will calculate the total calories from the given information:

Total calories = 40 kcal + 208 kcal + 126 kcal = 374 kcal

Percentage of calories:

Protein% of calories from protein = (calories from protein/total calories) × 100= (40/374) × 100 = 10.7%

CHO% of calories from CHO = (calories from CHO/total calories) × 100= (208/374) × 100 = 55.6%

Fat% of calories from fat = (calories from fat/total calories) × 100= (126/374) × 100 = 33.7%

Thus, the breakfast contained a total of 374 calories.

The percent of calories from protein, CHO, and fat were 10.7%, 55.6%, and 33.7%, respectively.

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Answer:

The Flux N_B = 0

Explanation:

So, we are given the following set of data or parameters which is going to help in solving this particular Question. So, let us take each at a time;

=> "An ammonia (A)-water (B) solution at 278 K and 4.0 mm thick is in contact at one surface with an organic liquid at this interface."

=>" 2.0 wt 'Yo ammonia (density of aqueous solution is 991.7 kg/m3) and the concentration of ammonia in water at the other end of the film 4.0 mm away is 10 wt % (density of 961.7 kg/m3). ''

With the information above, we can determine the N_A(which the question did not specify that we should calculate).

For the value of N_B, it will be equals to zero(0) because the insolubility of water in organic solvent.

Answer: number 1

Explanation: