Which statements describe kinetic and potential energy? Check all that apply

The frequency and intensity of gas-gas collisions are measured by gas pressure. 1 Atm is equivalent to 760 Torr, 760 mmHg, 101.325 kPa, 101,325 Pa, 14.7 lb/in2, and 29.92 inHg.

A Brief Glance at Quantity. When referring to a single word that CANNOT be measured, use the word amount. – When referring to the a plural or singular term that CAN be tallied, use number. – When speaking to an inanimate, singular or plural word that CAN be numbered or measured, quantity should be used.

There are two types of physical quantities. Qualities might be derived or basic. Quantities that cannot be represented in terms of any physical quantities are referred to as foundational or base quantities. They are size, mass, time, and space.

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Answer:

Step 1:

UQH2 + 2 cyt c (Fe3+) → UQ + 2 cyt c (Fe2+)

This step involves the oxidation of UQH2 and reduction of cyt c (Fe3+). The net reaction involves a 2-electron transfer from UQH2 to cyt c (Fe3+).

The standard reduction potential for UQH2 to UQ is given as 0.06 V, and for cyt c (Fe3+) to cyt c (Fe2+) it is 0.254 V.

The net standard reduction potential for step 1 can be calculated as follows:

E°_net1 = E°(UQH2) - E°(cyt c (Fe3+))

E°_net1 = 0.06 V - 0.254 V

E°_net1 = -0.194 V

Step 2:

UQH2 + 2 cyt c (Fe3+) → UQH + 2 cyt c (Fe2+)

This step also involves the oxidation of UQH2 and reduction of cyt c (Fe3+). The net reaction involves a 2-electron transfer from UQH2 to cyt c (Fe3+).

The standard reduction potential for UQH2 to UQH is given as 0.19 V.

The net standard reduction potential for step 2 can be calculated as follows:

E°_net2 = E°(UQH2) - E°(cyt c (Fe3+))

E°_net2 = 0.19 V - 0.254 V

E°_net2 = -0.064 V

Total redox potential of Complex III:

To calculate the total redox potential, we sum up the net reduction potentials of step 1 and step 2:

E°_total = E°_net1 + E°_net2

E°_total = -0.194 V + (-0.064 V)

E°_total = -0.258 V

Now, let's calculate the free energy available for proton translocation assuming a 2-electron process for each complex.

The equation relating free energy change (ΔG) and standard reduction potential (E°) is given by:

ΔG = -nFΔE°

Where:

ΔG is the free energy change

n is the number of electrons transferred

F is Faraday's constant (96,485 C/mol)

ΔE° is the standard reduction potential

For a 2-electron process, n = 2.

ΔG1 = -2 * 96,485 C/mol * (-0.194 V)

ΔG1 = 37,508.12 J/mol

ΔG2 = -2 * 96,485 C/mol * (-0.064 V)

ΔG2 = 12,303.04 J/mol

Therefore, the free energy available for proton translocation for each complex is 37,508.12 J/mol for Complex III, step 1, and 12,303.04 J/mol for Complex III, step 2.

To calculate the moles of protons translocated, we can use the equation:

ΔG = nFΔp

Where:

ΔG is the free energy change in joules

n is the number of moles of protons

F is Faraday's constant (96,485 C/mol)

Δp is the potential difference finish up now

3.7 mol Mg

See image:

Hope this helps,

Jeron

:- )

24.3 g of magnesium is required for two moles of the product. . Therefore, 356.3 grams of magnesium (Mg) are required to produce 40.0 grams of boron (B) through the reaction

A balanced chemical equation represents the correct stoichiometry of all the reactants and products.

Based on the balanced chemical equation above, 2 moles of Mg are required to produce 1 mole of B2H6, and 1 mole of B2H6 produces 2 moles of MgB2.

Using the molar masses of Mg (24.31 g/mol) and B (10.81 g/mol), we can calculate the mass of Mg required to produce 40.0 g of B:

1 mole of B = 2 moles of Mg x (24.31 g/mol) = 48.62 g of Mg

40.0 g of B x (1 mol B / 10.81 g) x (2 mol Mg / 1 mol B) x (24.31 g / 1 mol Mg) = 356.3 g of Mg

Therefore, 356.3 grams of magnesium (Mg) are required to produce 40.0 grams of boron (B) through the reaction .

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The reaction related to your question is :

Mg + B2H6 → 2 MgB2 + 3 H2.

A balanced chemical equation describes a reaction where the number of each type of atom on one side of the equation is equal to the number of the same sort of atoms on the other side of the equation.

In other words, the number of atoms of each element is the same on both sides of the equation, obeying the rule of conservation of mass.

For instance, the balanced formula for the combustion of oxygen and methane is CH4 + 2 O2 -> CO2 + 2 H2O.

On either side of the equation, there are 1 carbon atom, 4 hydrogen atoms, and 4 oxygen atoms.

The chemical equation must be in balance in order to employ the right quantity of reactants and products and to forecast how much reactant will be used and how much product will be produced.

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Answer:

All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.

Explanation:

Answer:

All living organisms are composed of one or more cell

Explanation:

hope this helps, please mark brainliest

The nucleus of 1H is made up of a single proton and therefore has a relative mass loss of 0 g/mol. The deuterium isotope, 2H, on the other hand, has a relative mass loss of 2.014 g/mol. The mass number of 2H is two, indicating that it has one neutron and one proton in its nucleus. Let's look at some additional detail about isotopes: A given element has the same number of protons, but it can have different numbers of neutrons in its nucleus.

A different isotope of the same element is formed by adding or subtracting neutrons from the nucleus. Isotopes of the same element have the same number of protons but a different number of neutrons. The atomic mass of an element is calculated by summing the number of protons and neutrons in the nucleus. The atomic mass unit (amu) is the unit used to calculate atomic mass. In conclusion, The relative atomic mass of 2H is 2.014 g/mol, which is a loss of 0.014 g/mol relative to the mass of 2 protons. The relative mass loss of deuterium, 2H, is 0.014 g/mol.

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Gold is fcc and has a lattice constant of 0.40788 nm . The value for the atomic radius of a gold atom in nanometers is 0.14421 nm. .

A gold atom touches another along the diagonal on each face of the unit cell of a fcc lattice, which has right angles. Typically, the diagonal is shown as extending from the center of one atom to the center of a second atom and to the center of a third atom. As a result, one can construct a right triangle whose hypotenuse is 4r, where r is the radius of a gold atom, and whose legs both have lengths of a = 0.40788 nm. By applying the Pythagorean theorem,

a^2 +  a^2  = ( 4r )^2,

2 a^2 + = (16r^2) ,

and r = (21/2/4)a,

where an is the stated covalent atomic radius of gold and r is 0.14421 nm.

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Answer:

rest will do later mom is calling me plz understand promise will do it

Explanation:

Answer:

lol

Explanation:

its 5 points

The answer is D. Chain length, intermolecular forces, and the extent of chain branching all affect polymer properties.

Chain length influences a polymer's mechanical and physical properties, such as tensile strength and toughness. As the chain length increases, the polymer becomes more resistant to deformation. Intermolecular forces, including van der Waals forces, hydrogen bonding, and dipole-dipole interactions, play a crucial role in determining a polymer's thermal, mechanical, and solubility properties. Polymers with strong intermolecular forces exhibit higher melting points and increased mechanical strength.

Finally, the extent of chain branching impacts a polymer's properties by influencing its crystallinity, density, and molecular weight distribution. Highly branched polymers have lower crystallinity and density, which can result in reduced mechanical strength and increased permeability. Understanding these factors is essential for designing polymers with specific desired properties for various applications.

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The name of the given hydrocarbon in which 2 central carbon atoms with additional 3 methyl groups is 2-methylbutane.

Hydrocarbons are the organic compounds which are made up of by the combination of hydrogen and carbon atoms.

According to the question desired structure is attached below where:

Hence required hydrocarbon is 2-methyl butane.

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Answer:

B. 2-methylbutane

Explanation:

Correct on Edge 2022!!!

Good luck everyone, you got this! Have a great day!

According to the molecular geometry, water is a polar molecule among the following.

Molecular geometry can be defined as a three -dimensional arrangement of atoms which constitute the molecule.It includes parameters like bond length,bond angle and torsional angles.

It influences many properties of molecules like reactivity,polarity color,magnetism .The molecular geometry can be determined by various spectroscopic methods and diffraction methods , some of which are infrared,microwave and Raman spectroscopy.

They provide information about geometry by taking into considerations the vibrational and rotational absorbance of a substance.Neutron and electron diffraction techniques provide information about the distance between nuclei and electron density.

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A molecule of ethanol (C2H6O) is composed of 9 atoms.

Breaking down the molecular formula: C2H6O

There are 2 carbon atoms (C2).

There are 6 hydrogen atoms (H6).

There is 1 oxygen atom (O).

In total, the molecule of ethanol contains 2 carbon atoms, 6 hydrogen atoms, and 1 oxygen atom, summing up to a total of 9 atoms.

A molecule of ethanol (C2H6O) consists of 2 carbon atoms (C), 6 hydrogen atoms (H), and 1 oxygen atom (O). Therefore, there are a total of 2 + 6 + 1 = 9 atoms in a molecule of ethanol.

Adding up the individual atoms, we get a total of 2 carbon atoms, 6 hydrogen atoms, and 1 oxygen atom, which sum up to 9 atoms in total.

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The mass number of an atom of potassium that has 20 neutrons is option C. 39

Mass number-

Mass number is the total number of protons and neutrons in the nucleus of an atom is called the mass number. It is represented by the symbol A. In other words, mass number refers to the sum of the number of protons and neutrons in the nucleus of an atom.

Atom-

Atoms are tiny particles that make up everything in the world. Everything in the world is made up of tiny particles known as atoms. An atom is the basic unit of matter. The term "atom" comes from the Greek word atomos, which means indivisible.

The basic building blocks of all matter are atoms, which are made up of three types of particles: protons, neutrons, and electrons.

In a neutral atom, the number of electrons is equal to the number of protons, thus the overall charge on the atom is zero. However, the mass number of the atom is equal to the sum of the number of protons and neutrons.

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Answer:

It would be C because its continuing to the next. It doesn't stop nor does it absorb anything.

Explanation: I hope this helps :) I'm only in 8th grade but this seems easy so if I am wrong I am soo sorry.

Answer:

B)The first and second beakers contain a solution that completely dissociates the ions. These ions create an electrical current. The third beaker solution does not dissociate ions. It is a nonelectrolyte.

Explanation:

Electrolytes dissociate ions. They are also conductors. Since the first 2 bulbs light up strongly, we can assume that the ions completely dissociated. Since the 3rd did not light up, it is a nonelectrolyte.

Answer:

The first and second beakers contain a solution that completely dissociates the ions. These ions create an electrical current. The third beaker solution does not dissociate ions. It is a nonelectrolyte.

Explanation:

Answer:

The mole ratio for iron (iii) oxide to aluminium is

1:2

Answer:

less polution

Explanation:

The block location of an element tells the energy sublevel of an element.

The term block location refers to the specific block in which an element is found in the periodic table. There are three blocks in the periodic table which are;

The block location of an element tells the energy sublevel of an element.

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According to the question, the given solution is vinegar, which is a 0.852-molar solution of acetic acid (HC2H3O2) in water. The volume of NaOH needed to neutralize 5.26 mL of vinegar is explained below .

To solve the problem, we will use the concept of the neutralization reaction of acetic acid and NaOH.

Let us write the balanced chemical equation for the reaction:

HC2H3O2 + NaOH → NaC2H3O2 + H2O

From the equation, we can see that 1 mole of HC2H3O2 reacts with 1 mole of NaOH. The molarity of acetic acid is given as 0.852 M, which means that 1 L of the solution contains 0.852 moles of acetic acid. Therefore, the number of moles of acetic acid in 5.26 mL of vinegar can be calculated as follows:

Number of moles of acetic acid = Molarity × Volume = 0.852 M × (5.26 mL / 1000 mL/L) = 0.00449 moles

Since the stoichiometry of the reaction is 1:1, we need an equal number of moles of NaOH to neutralize the acetic acid. The molarity of NaOH is given as 0.214 M, which means that 1 L of the solution contains 0.214 moles of NaOH.

Therefore, the volume of NaOH needed can be calculated as follows:

Volume of NaOH = Number of moles of NaOH / Molarity = 0.00449 moles / 0.214 M = 0.02098 L

Therefore, the volume of NaOH needed to completely neutralize 5.26 mL of vinegar is 0.02098 L or 20.98 mL.

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Answer:

The restoring force that prevents the furniture from tipping over when pushing the furniture towards the right, F= W × D

Where;

W = The weight of the furniture

D = The horizontal distance from the center of gravity of the furniture, CG and the to the lower right corner of the furniture

Given that A > D, for the furniture to tip over when pushing above the CG, we have;

F1 × A ≤ W × D

∴ F1 << W or for a force much smaller than W, the weight of the furniture applied above the center of gravity, the furniture will tip over

However when the force F2 is applied, where C < D, we have for no tipping over;

F2 × C ≤ W × D, therefore, given that C < D, when a force much higher than the weight, W, is applied at F2, the furniture will remain upright

Therefore, it is better push at a point lower than or equal to the center of gravity, whereby the point B is lower than the center of gravity, it is better to push at point B, Ravleen is correct and it is better to push at point B because the center of gravity is lower

If the furniture is pushed at the wrong spot it may tip over

Please see attached drawing

Explanation:

Familiar substances that sublime readily include iodine , dry ice , menthol, and camphor. Sublimation is occasionally used in the laboratory as a method for purification of solids, for example, with caffeine.

Answer:

nitric acid + iron=iron+[nitric acid ] 2 hydrogen

The net ionic equation will be Fe → \(Fe^{2+}\).

The net ionic equation would be a chemical equation which only indicates the elements, compounds, as well as ions instantly involved in a chemical reaction.

The given chemical equation is:

HNO3+Fe → Fe(HNO3)2 +H2​

It can be written in term of ionic equation.

\(H^{+}\) + \(NO_{3}^{-}\)+Fe → \(Fe^{2+}\) + \(H^{+}\) + \(NO_{3}^{-}\)

Hydrogen ion and nitrate ion will be canceled each other.

Hence, the net ionic equation will be

Fe → \(Fe^{2+}\)

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The first two chemical equations are reversible while the other two are irreversible.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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Answer:c

Explanation:

An omelet is endothermic because it absorbs heat from its surroundings when it is being baked. Since water dissipates hot air while forming snow, snow creation is exothermic. Egg frying is exothermic.

Chemical processes known as endothermic reactions use heat from the surroundings to produce products. These occurrences have the effect of chilling their immediate surroundings, which results in a cooling effect.

If the heat is absorbed either by system from the environment, the reaction or states of matter is endothermic. As a result of the system absorbing heat from its surroundings during an endothermic cycle, the environment cools.

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Answer:

b

Explanation:

got it wrong on edge2020

Answer:

its c because the northern and southern hemisphere get the same amount of energy from the son in march

In the titration of a weak acid with a strong base, the point where half of the acid has reacted with the base is noteworthy because the ph equals: the pKa.

In layman's terms, pKa is a measurement of an acid's strength. A strong acid will have a pKa value that is lower than 0. To be more specific, pKa is the Ka value's negative log base ten value (acid dissociation constant). It gauges an acid's potency by determining how firmly a proton is retained by a Bronsted acid.

The strength of the acid and its capacity to donate protons increase with decreasing pKa values.

Acid dissociation constant, Ka, gauges how well an acid separates from its water-soluble constituents. Since acid generally dissociates into its ions, the stronger the acid, the higher the value of Ka.

The following equation describes the connection between pKa and Ka:

pKa = –log[Ka]

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