Which of the following are true of phases?Check all that apply.A.The particles in a liquid are in a fixed location.B.Gases have more kinetic energy than liquids or solids.C.The particles of a solid vibrate.D.Gases have weak intermolecular forces between the atoms or molecules.

Oxygen 16, the answer is 3.5 grams of magnesium nitrate produced from 3 grams of nitric acid.

The reactant that is consumed first in a chemical reaction, also known as the limiting reactant (or limiting reagent), limits the amount of product that can be produced.

Number of moles of HNO3 = 3 g / 63 g/mol = 0.0476 mol

Number of moles of Mg(OH)2 = (0.0476 mol / 2) = 0.0238 mol (using the stoichiometric coefficients of the balanced equation)

Since we need two moles of HNO3 to react with one mole of Mg(OH)2, Mg(OH)2 is the limiting reactant because we only have 0.0238 mol available.

Now we can use the stoichiometry of the balanced equation to calculate the number of moles of magnesium nitrate produced:

Number of mOles of Mg(NO3)2 = 0.0238 mol x (1 mol Mg(NO3)2 / 1 mol Mg(OH)2) = 0.0238 mol

Finally, we can convert the number of moles of Mg(NO3)2 to grams using the molar mass:

Mass of Mg(NO3)2 = 0.0238 mol x 148 g/mol = 3.53 g

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Answer:

it lowers the activation energy

Answer:

c

Explanation:

Answer:

It has less carbon dioxide than when it entered the gills, it has more oxygen than when it entered the gills

Explanation:

there is none i just found the answer =_=

Blood is different after it is pumped through gills as it has less carbon dioxide and more oxygen when it enters the gills through the process of diffusion.

Diffusion is defined as the process of movement of molecules which takes place under concentration gradient. It helps in movement of substances in and out from the cell.The molecules move from lower concentration region to a higher concentration region till the concentration becomes equal.

There are 2 main types of diffusion:

1) simple diffusion-process in which substances move through a semi-permeable membrane without the aid of transport proteins.

2) facilitated diffusion- It is a passive movement of molecules across cell membrane from higher concentration region to lower concentration.

There are 2 types of facilitated diffusion one is osmosis and dialysis.

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D is the answer so now we can understand

Answer:

to my understanding D iz da answer

Explanation:

let hope dat it will help u

Answer:

single orbital, s sub level.

three orbitals, p sub level

5 orbitals , d sub level

seven orbital , f sub level

The description of moving electrons revolving around the atomic orbitals of metal atoms is known as the electron sea model of metallic bonding.

The representation of moving electrons revolving around the atomic orbitals of metal atoms is known as the "electron sea" model of metallic bonding. Very few electrons are present in the outermost atomic orbitals during metallic bonding. The electrons can flow freely throughout the network of the metal because the unoccupied orbitals in the atom's highest energy levels overlap. The valence electrons are "delocalized," or move away from their own metal atoms and toward the atomic nuclei of interacting metal ions, creating a "sea of electrons."

Minerals containing transition metals exhibit metallic bonding frequently. Minerals with metallic bonding include gold, silver, and copper. Metallically bound compounds are efficient heat and electricity conductors because valence electrons can travel freely throughout the structure.

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Answer:

Y because organism y feed on herbivores

Explanation:it means y is carnivores or omnivores

Explanation:

The phrase that describes air density is "equals mass divided by volume." Option B is correct.

Air density refers to the amount of mass of air particles (such as molecules or atoms) present in a given volume of air. As the mass of air increases or the volume decreases, the density of air increases. Conversely, if the mass decreases or the volume increases, the density decreases.

When we say that air density increases as altitude increases, it means that as you go higher in the Earth's atmosphere, the air becomes less dense. This is because the higher you go, the fewer air particles there are in a given volume. The mass of air decreases, while the volume remains relatively constant. Therefore, the ratio of mass to volume decreases, resulting in a lower air density at higher altitudes.

The phrase "pushes molecules in one direction" doesn't directly describe air density. Instead, it could be related to the concept of air pressure, which is the force exerted by air molecules on a given surface area. Air pressure is caused by the collisions of air molecules with each other and with surfaces.These collisions create a force that can be exerted in a particular direction. However, air density itself does not imply a specific direction of molecular motion or force.

Hence, B. is the correct option.

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--The given question is incomplete, the complete question is

"Which phrase describes air density? A) increases as altitude increases B) equals mass divided by volume C) pushes molecules in one direction."---

The mass of sodium chloride that is required to create a 0.875 M solution 534 g of water is 27.291 g and 0.467 moles of NaCl is required.

Mass of water = 534 g

Molality of the solution = 0.875 m

Molality is the number of moles of solute per kilogram of solvent.

It is represented by the formula:

Molality = number of moles of solute / kilogram solvent

Its mathematical expression is:

m = n/kg

Now we will convert the g into kg.

Mass of water = 534 g× 1kg/1000 g = 0.534 kg

putting the values in formula:

0.875 m = n / 0.534 kg

n = 0.467 mol

Now we will calculate the mass of sodium chloride:

Mass = number of moles × molar mass

Mass = 0.467 mol × 58.44 g/mol

Mass = 27.291 g

Thus, the required mass and moles of NaCl are 27.291g and 0.467mol respectively.

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Answer:

El agua oxigenada se encuentra en cuatro concentraciones diferentes expresadas “en tanto por ciento”: 8%, 30%, 35% y 50%. Sin embargo, hay quien prefiere hablar de “volúmenes” y no de “porcentajes”.

Answer:

9.62 μm

Explanation:

From the question given above, the following data were obtained:

Frequency (f) = 31.2 THz

Wavelength (λ) =..?

Next, we shall convert 31.2 THz to Hz.

This can be obtained as follow:

Recall:

1 THz = 1×10¹² Hz

Therefore,

31.2 THz = 31.2 THz × 1×10¹² Hz / 1 THz

31.2 THz = 3.12×10¹³ Hz

Therefore, 31.2 THz is equivalent to 3.12×10¹³ Hz.

Finally, we shall determine the wavelength (λ) infrared radiation as follow:

Frequency (f) = 3.12×10¹³ Hz.

Velocity (v) = 3×10⁸ m/s

Wavelength (λ) =..?

V = λf

3×10⁸ = λ × 3.12×10¹³

Divide both side by 3.12×10¹³

λ = 3×10⁸ / 3.12×10¹³

λ = 9.62×10¯⁶ m

Converting 9.62×10¯⁶ m to micro metre (μm) we have:

1 m = 1×10⁶ μm

Therefore,

9.62×10¯⁶ m = 9.62×10¯⁶ m × 1×10⁶ μm / 1 m

9.62×10¯⁶ m = 9.62 μm

Therefore, the wavelength of the infrared radiation is 9.62 μm

The Omnipotent view of management refers to the belief that managers are directly responsible for an organization's success or failure. According to this view, managers have the power and control to make decisions that will significantly impact the organization's performance.

In terms of the organizational environment, ABC CO needs to focus on several aspects. Firstly, it should prioritize building strong relationships with customers by understanding their needs and delivering value through its products or services. Secondly, maintaining good relationships with suppliers is crucial to ensure a reliable supply chain and access to necessary resources. Thirdly, keeping a close eye on competitors is essential to stay competitive and identify opportunities for differentiation. Lastly, monitoring and adapting to economic, legal, and socio-cultural factors is vital to ensure compliance with regulations and aligning the organization with societal trends and expectations.

In conclusion, the Omnipotent view of management emphasizes the influence of managers in shaping organizational outcomes, while the Symbolic view recognizes the significance of external factors. For the current state of ABC CO, a balanced approach that considers both internal and external factors would be beneficial. The culture should promote collaboration, innovation, and adaptability, while the organization should focus on building strong relationships with customers, suppliers, and competitors while adapting to the economic, legal, and socio-cultural environment.

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Answer:

(b) Mn2+ + 2 e- →2 Mn ℰ° = −1.18 V

Fe3+ + 3 e- → 3Fe ℰ° = −0.036 V

Answer:

Gas

Explanation:

In a gas, particles are in consistent straight-line movement. The motor energy of the atom is more prominent than the alluring power between them, hence they are a lot farther separated and move unreservedly of one another.

Answer:  Gases only

Explanation: because there are gas all around us. You can walk though the air with slamming into it like its a brick wall. that's because the particles are far apart allowing it to move freely.

Hopefully this helps.

When we have an acid-base reaction, the acid will be that substance that donates protons, in the form of H+ ions. The base will be the one that accepts the H+ ions. Now, the base that accepts the protons becomes a potential proton donor, thus becoming a conjugate acid. This is the case with H3O+.

H2O accepts H+ ions, so it is a base and when it becomes H3O+ it becomes a potential H+ proton donor, that is, a conjugate acid.

so, the answer will be B. Conjugate acid

Answer:Arsenic trifluoride

Arsenic trifluoride | AsF3 - PubChem.

Explanation:

Answer:

Vaporization

Since the question does not specify what molecule is being acted upon by the increment in temperature, I'll assume it's water.

When first taken out of the fridge, water is in the form of ice, and it has not been affected by a change in temperature yet, so it's at the origin.

(origin = ice)

As you raise the temperature, however, the ice starts to melt, and melting occur during phase 2. You have to keep the temperature constant for the process to properly occur.

(phase 2 = melting)

After it finishes melting, the ice is now in it's liquid state, which is water. The temperature continues to rise in order to proceed to the next phase.

(2nd slope = water)

Lastly, Water is being vaporized during phase 4. Notice, the temperature is kept constant in order to allow the process to properly occur.

(phase 4 = vaporization)

The final volume of the gas is 15.8 L.

The Ideal gas law is the equation of state of a hypothetical ideal gas. It is a good approximation to the behaviour of many gases under many conditions, although it has several limitations. The ideal gas equation can be written as-

                      PV = nRT

where,

P = Pressure

V = Volume

T = Temperature

n = number of moles

Given,

n = 1

Pressure = 1 atm

W = 1 kJ

Temperature = 77⁰F

γ = 1.4

PV = nRT

The temperature in K is written as -

T = ( 77 - 32 ) 5/9 + 273.15

= 298.15 K

\(w = \frac{nr( T_{1} - T_{2)} }{\pi - 1}\)

T₂ = 250.04 K

The initial volume of the container is -

P₁V₁ = nRT₁

101.32 Pa × V = 1 × 8.314 × 298

V = 0.025 m³

The final volume of the gas is worked out from the equation -

\((\frac{V_{2} }{V_{1} } ) = (\frac{T_{1} }{T_{2} })^{(1.4 - 1)}\)

V = 0.0158 m³ = 15.8 L

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Answer:

I think iron sorry if its wrong goodluck!

An acid-base reaction is a type of double replacement reaction. When an acid reacts with a base, the acid loses its H+ ion (proton) and the base gains an H+ ion to form water. The cation of the base and the anion of the acid form the salt.

The acid-base reaction is a type of double replacement reaction. During an acid-base reaction, a proton is exchanged between an acid and a base. The reaction results in the formation of water and a salt.

Acid-base reactions are chemical reactions that occur between an acid and a base. These reactions are important in both biochemistry and industrial chemical processes.

The hydrogen ion, H+ from the acid combines with the hydroxide ion, OH- from the base to form water (H2O). The remaining part of the acid and the base combine to form a salt. This reaction is classified as a double displacement or double replacement reaction.

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The oxidation of a) 1-hexanol b) 2-hexano c) hexanal with CrO3 in aqueous acid gives 1-hexanoic acid, 2-hexanone and 1-hexanoic acid respectively. The oxidation with PCC gives 1-hexanaldehyde, 2-hexanone and no reaction respectively.

What is PCC?

PCC is also called as pyridinium chlorochromate which is a yellow-orange salt. this is primarily used for the oxidation of alcohols which gives carbonyl compounds as products. It is one of the highly effective oxidizing agents for alcohols.

The oxidation of alcohols with CrO3 gives carbonyl compounds like aldehydes and ketones. With primary alcohol and aldehydes it gives carboxylic acid, whereas with secondary alcohol it gives ketones as products. PCC with primary alcohols give aldehyde, with secondary alcohols give ketone and with aldehyde there is no reaction.

Therefore, CrO3 with 1-hexanol and hexanal gives 1-hexanoic acid, with 2-hexanol gives 2-hexanone. PCC with 1-hexanol gives 1-hexanaldehyde, 2-hexanol gives 2-hexanone and with hexanal there is no reaction.

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Answer:

be specific it's too little information

The relationship between the number of atoms attached to the central atom and the resulting molecular shape can be described by VSEPR theory.

The valence-shell electron-pair repulsion theory (VSEPR) suggests that the geometric arrangement of atoms around a central atom in a molecule is determined by the electrostatic repulsion between the valence electron pairs in the atoms forming the molecule.

Valence Shell Electron Pair Repulsion (VSEPR) theory is a model used to predict the three-dimensional geometry of a molecule, which is essential for understanding the molecule's properties and reaction mechanisms.

According to this theory, the arrangement of atoms around a central atom is determined by minimizing the repulsion between the pairs of valence electrons. In other words, the geometry of a molecule is determined by the arrangement of electron pairs surrounding the central atom.

Therefore, the number of atoms connected to the central atom and the position of these atoms (i.e., lone pair or bonding pair) determine the geometry of the molecule.

For example, the linear molecule of carbon dioxide has two oxygen atoms attached to the central carbon atom, resulting in a linear arrangement of atoms. The tetrahedral arrangement of four atoms is produced by a central carbon atom bonded to four hydrogen atoms in methane.

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Answer:

Explanation:

2S       +       3O₂       =       2SO₃

2moles      3 moles

2 moles of S react with 3 moles of O₂

5 moles of S will react with 3 x 5 / 2 moles of O₂

= 7.5 moles of O₂ .

O₂ remaining unreacted = 10 - 7.5 = 2.5 moles .

All the moles of S will exhausted in the reaction and 2.5 moles of oxygen will be left .  

1) The reaction is exothermic and heat is a product

2) The color would turn to pink.

Let us recall that an endothermic reaction is one in which the increase in the temperature of the system would drive the forward reaction. This implies that the equilibrium would shift to the right when the set up is heated. Since the color of the solution changes to blue when heated hence the reaction is exothermic.

If you removed heat by placing the solution in the ice bath, we can see that we have removed the heat thus we expect that the reverse reaction would take place and the color would change to pink.

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Answer:

subscript is 3

Explanation:

the  subscript is the number that is slightly lower than a # which in this case it's O

this indicates that there's 3 oxygen atoms

Answer:

the answer is 1 ‍♀️

Explanation: