The space between the particles of matter in a dead star is. ?

Answer:

77460 g

Explanation:

To solve this problem first we convert molecules into moles, using Avogadro's number:

3.47x10²⁶ molecules ÷ 6.023x10²³ molecules/mol = 576.12 moles

Then we convert 576.12 CuCl₂ moles into grams, using its molar mass:

576.12 mol * 134.45 g/mol = 77460 g

So the answer is 77460 g, or 77.46 kg.

Explanation:We have momemtum = mass X velocity

    p = mv

    OR, p/m = v

    v = (125kg m/s)25kg

    v = 125/25 m/s

       v = 5 m/s

Explanation:

A. Chemical potential energy.

The electronic configuration of atoms and ions is based on the arrangement of electrons in various energy levels and sublevels. The configuration is typically denoted by the principle energy level (n), the type of orbital, and the number of electrons in that orbital.

A. Iron (Fe)

i. In its neutral state, Iron (atomic number 26) has the electron configuration:

    1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶

 ii. In its ion state, it's common for Iron to lose two or three electrons to form Fe²⁺ or Fe³⁺, respectively.

    - For Fe²⁺, the electron configuration would be: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶

    - For Fe³⁺, the electron configuration would be: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵

B. Chromium (Cr)

 i. In its neutral state, Chromium (atomic number 24) has a slightly unusual electron configuration due to electron configurations being more stable when half-filled or fully-filled. This results in the electron configuration:

    1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵

ii. In its ion state, Chromium typically forms Cr²⁺ or Cr³⁺ ions.

    - For Cr²⁺, the electron configuration would be: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁴

    - For Cr³⁺, the electron configuration would be: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d³

Answer:

0.600

Explanation:

2.120/3.670 = 0.578 so 790*0.578 = 456.349 when converted to atm that is 456.349/760 = V2

0.600

If a gas has a volume of 3.67 L and a pressure of 790 mm Hg, the pressure if the volume is compressed to 2.12 L is 1367 mm Hg.

The combined gas law is the law of of gaseous state which is made by combination of Boyle's law, Charle's law, Avogadro's law and Gay Lussac's law.

It is a mathematical expression that relates Pressure, Volume and Temperature.

(P1 × V1)÷T1 = (P2 × V2)÷T2

Boyle's law states that if temperature is constant then product of pressure and volume is constant.

(P1 × V1)= (P2 × V2)

Given,

P1 = 790 mm Hg

V1 = 3.67L

P2 = ?

V2 = 2.12 L

(P1 × V1)= (P2 × V2)

P2 = 1367 mm Hg

Therefore, If a gas has a volume of 3.67 L and a pressure of 790 mm Hg, the pressure if the volume is compressed to 2.12 L is 1367 mm Hg.

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Answer:

mu answer is A

Explanation:

i think it is a popular opinion because its the opinion of a country

Answer:

The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium, magnesium, calcium, strontium, barium, and radium.

Hope this helped!

The correct answer is A, 2-Methylpropane.

It is the simplest alkane that contains primary, secondary, and tertiary carbon atoms. It has the molecular formula C₄H₁₀ and consists of a chain of three carbon atoms with a methyl group (-CH₃) attached to the second carbon atom, resulting in a branched structure.

The carbon atom with the methyl group is a tertiary carbon, the carbon atom at the end of the chain is a primary carbon, and the other carbon atom is a secondary carbon. The other options, B, C, and D, do not have all three types of carbon atoms present.

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The enzyme urease increases the velocity of the reaction by a factor of 2.7 x 10^34.

To find this answer, we need to use the Arrhenius equation:

k = A * e^(-Ea/RT),

where k is the rate constant, A is the pre-exponential factor, Ea is the activation energy, R is the gas constant (8.314 J/mol*K), and T is the temperature in Kelvin (294 K for 21°C).

First, we can calculate the rate constant for the uncatalyzed reaction:
\(k1 = A * e^{-125000/8.314*294} = A * e^{-51.1} = A * 2.8 x 10^{-23}\\\)

Next, we can calculate the rate constant for the catalyzed reaction:
\(k2 = A * e^{-46000/8.314*294} = A * e^{-18.8} = A * 7.6 x 10^{-9}\\\)

Now, we can find the factor by which the rate constant (and therefore the velocity of the reaction) is increased:
\(k2/k1 = (A * 7.6 * 10^{-9})/(A * 2.8 * 10^{-23}) = 2.7 * 10^{34}\)

Therefore, the enzyme urease increases the velocity by a factor of 2.7 x 10^34.

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State not play an important a significant role in the extent of harm upon exposure to a chemical.

What is meant by chemical?

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The right response is to raise the internal gas pressure. When a sealed glass jar is heated, the temperature of the gas within rises, causing the gas molecules to travel faster and collide with the jar's walls more often and with more force, increasing the gas's pressure.

Gas molecules are made up of atoms that are linked together. These interatomic connections function similarly to springs, connecting atoms of varying masses. This connection vibrates at a constant frequency known as the natural frequency. Atoms, molecules, and/or ions are all present in gases, liquids, and solids, but their behavior varies between the three phases. The graphic below depicts the tiny differences. A gas as seen via a microscope. A gas is a condition of stuff that does not have a set volume or form. Air, water vapor, and helium are examples of gases. A gas is a kind of stuff that does not have a defined volume or shape. To put it another way, a gas takes on the shape and volume of its container.

Here,

The correct answer is Increase the internal gas pressure as When a sealed glass jar is heated, the temperature of the gas within rises, forcing the gas molecules to travel faster and hit with the jar's walls more often and with more force, raising the gas's pressure.

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I) Combine physically in no specific proportions.

II) Can be classified as homogenous or heterogeneous.

IV) Can only be an element or a compound.

following is correct about a mixture -  I, II and IV.

What is a chemical mixture?

In chemistry, a mixture is a substance made up of two or more chemicals that are not chemically related to one another. A mixture is the physical amalgamation of two or more components. A mixture, which might be in the form of solutions, suspensions, or colloids, maintains the chemical identity of the constituents. The two components are evenly distributed throughout a homogeneous mixture, and there is no discernible boundary separating them. There is a distinct boundary between the two substances in a heterogeneous mixture.

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Answer:

Mass (m) = 1600 kilogram

Explanation:

m =  V × ρ

=  800 cubic meter × 2 kilogram/cubic meter

=  1600 kilogram

Answer:

During the process of electrolysis, ions that are formed will get discharged to reform neutral atoms at the state of electrons, whereas the preferential meaning which in case one or more kind of cations and anions in the electrolyte, the one with the higher concentration or at a lower position activity will get discharged first.

Answer:

The tectonic plates comprise the bottom of the crust and the top of the Earth's mantle. There are ten major plates on Earth and many more minor ones. They float on a plastic-like part of the Earth's mantle called the asthenosphere.

Explanation:

Answer:

Yes

Explanation:

Answer:

Increasing the temperature

Increasing particle size

Explanation:

Increasing the temperature allows for particles and molecules to move faster (because there is an increase in energy) and allows for more collisions.

∴ Increasing the temperature would be an answer.

Increasing the particle size allows for more surface area and a greater chance for particles to collide with each other.

∴ Increasing particle size would be an answer.

Topic: AP Chemistry

Unit: Kinetics

Answer:

The new moles of the gas in the flask is 2.13 moles.

Explanation:

Given;

number of moles of gas, n = 1.9 mol

temperature of the gas, T = 21 °C  = 21 + 273 = 294 K

pressure of gas, P = 697 mmHg

volume of gas, V = ?

Apply ideal gas law;

PV = nRT

Where;

R is gas constant, = 62.363 mmHg.L / mol. K

V = nRT / P

V = (1.9 x 62.363 x 294) / 697

V = 49.98 L

New pressure of the gas, P = 795 mmHg

New temperature of the gas, T = 26 °C = 273 + 26 = 299 K

New moles of the gas, n = ?

Volume of the gas is constant because volume of the flask is the same when more gas was added.

n = PV / RT

n = (795 x 49.98) / (62.363 x 299)

n = 2.13 moles

Therefore, the new moles of the gas in the flask is 2.13 moles.

Answer:

36 grams as 1 mole is 12 grams

Answer:

tbh idk cause I will love to answer your question but ehh

Answer:

A. The largest value is 7 and the smallest value is 1. Find the difference. 7 - 1 = 6.

Explanation:

Long chain and very long chain fatty acids (FA) require carnitine shuttle system to enter the mitochondrial matrix for beta-oxidation.

This system consists of three primary components: carnitine palmitoyltransferase I (CPT I), carnitine-acylcarnitine translocase (CACT), and carnitine palmitoyltransferase II (CPT II). CPT I, located on the outer mitochondrial membrane, converts the long-chain FA into their respective acylcarnitines by attaching a carnitine molecule to them. These acylcarnitines can then be transported across the inner mitochondrial membrane by CACT, which is a transport protein. Once inside the matrix, CPT II, which is bound to the inner mitochondrial membrane, detaches the carnitine group and reattaches the original CoA group, generating a long-chain acyl-CoA that is ready for beta-oxidation.

Beta-oxidation is a process that breaks down fatty acids into smaller units called acetyl-CoA, which can then enter the citric acid cycle (also known as the Krebs cycle or TCA cycle) to generate ATP, the energy currency of cells. This process is vital for energy production, especially during times of fasting or prolonged exercise when glucose stores are depleted. Overall, the carnitine shuttle system is essential for the efficient transport and utilization of long chain and very long chain fatty acids for energy production through beta-oxidation.

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Answer:

28.69 grams

Explanation:

To find the mass, we first need to find the moles. Once we have the moles, it is easy to use the molar mass of H2SO4 to find its mass.

To find the moles, remember that molarity (M) is equal to the moles divided by the volume (L). The volume HAS TO be converted to liters!

M = moles / V

5.85 M = moles / 0.05 L

moles = 0.2925

Now we know that we have 0.2925 moles of sulfuric acid. The molar mass of sulfuric acid is 98.08 g/mol.

0.2925 moles * (98.08 g / mol) = 28.69 grams

Make sense? If you have any questions, don't hesitate to ask!

Answer: Magnesium loses two electrons whilst sulfur gains tw

Answer:

The alkanes comprise a series of compounds that are composed of carbon and hydrogen atoms with single covalent bonds. This group of compounds comprises a homologous series with a general molecular formula of C n H 2 n+2 , where equals any integer.

Explanation:

The general formula for the alkane series is CnH2n+2

In this formula:

"Cn" shows how many carbon atoms are in the alkane molecule.

"H2n+2" shows the amount of hydrogen atoms in the alkane compound, with "n" being the number of carbon atoms.

Alkanes are a group of hydrocarbons that only have single bonds between their carbon atoms. The formula says that each carbon atom is connected to two hydrogen atoms. And the total number of hydrogen atoms in an alkane molecule is two more than double the number of carbon atoms.

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Answer: 429 grams of \(Al(NO_2)_3\)  should be added to 1.3 L of water to prepare 2.0 M solution

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

\(Molarity=\frac{n}{V_s}\)

where,

n = moles of solute \(Al(NO_2)_3\) = \(\frac{\text {given mass}}{\text {Molar mass}}=\frac{xg}{165g/mol}\) 

\(V_s\) = volume of solution in Liters  

Now put all the given values in the formula of molarity, we get

\(2.0M=\frac{xg}{165g/mol\times 1.3L}\)

\(x=429g\)

Therefore, 429 grams of \(Al(NO_2)_3\)  should be added to 1.3 L of water to prepare 2.0 M solution

Answer:

C. A combustion reaction.

Explanation:

Let's see why a combustion reaction would be the answer:

A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Combustion reactions must involve O2 as one reactant.

When a combustion reaction has a hydrocarbon as a reactant (a compound made up solely of carbon and hydrogen), the products of the combustion of hydrocarbons would be carbon dioxide and water. Many hydrocarbons are used as fuel because their combustion releases very large amounts of heat energy.

Based on this logic, the answer would be C. A combustion reaction.

Explanation:

500 degree Celsius because we can see it in the tube

Answer:

a. i. 5.092 × 10²⁰ Hz ii. 588.98554 nm ii. 10667809.11 rad/m

b. i. 5.087 × 10²⁰ Hz ii. 589.58286 nm iii. 10657001.3 rad/m

Explanation:

refractive index, n = λ/λ'  where λ = wavelength in vacuum = and λ' = wavelength in air

a. For λ = 589.15788 nm,

i. Frequency,

f = c/λ where c = speed of light in vacuum = 3 × 10⁸ m/s and λ = 589.15788 nm = 589.15788 × 10⁻⁹ m

So, f = 3 × 10⁸ m/s ÷ 589.15788 × 10⁻⁹ m

= 0.005092 × 10¹⁷ /s

= 5.092 × 10²⁰ /s

= 5.092 × 10²⁰ Hz

ii. Wavelength,

Since n = λ/λ'  where λ = wavelength in vacuum = and λ' = wavelength in air

and n = 1.0002926

λ' = λ/n

= 589.15788 nm/1.0002926

= 588.98554 nm

k = 2π/λ'

= 2π/588.98554 nm

= 0.01066780911 rad/nm

= 0.01066780911 rad/nm × 10⁹ nm/1m

= 10667809.11 rad/m

b. For λ = 589.755 37 nm.,

i. Frequency,

f = c/λ where c = speed of light in vacuum = 3 × 10⁸ m/s and λ = 589.755 37 nm. = 589.755 37 × 10⁻⁹ m

So, f = 3 × 10⁸ m/s ÷ 589.755 37 × 10⁻⁹ m

= 0.005087 × 10¹⁷ /s

= 5.087 × 10²⁰ /s

= 5.087 × 10²⁰ Hz

ii. Wavelength,

Since n = λ/λ'  where λ = wavelength in vacuum = and λ' = wavelength in air

and n = 1.0002926

λ' = λ/n

= 589.755 37 nm./1.0002926

= 589.58286 nm

k = 2π/λ'

= 2π/589.58286 nm

= 0.0106570013 rad/nm

= 0.0106570013  rad/nm × 10⁹ nm/1m

= 10657001.3 rad/m