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Energy is released when glycolysis occurs, and this energy is utilized to create four molecules of ATP. As a result, glycolysis produces a net gain of two ATP molecules.

The metabolic mechanism that transforms glucose to pyruvate is known as glycolysis. This free energy is utilized to create the high-energy molecules adenosine triphosphate and reduced nicotinamide adenine dinucleotide. Glycolysis is a series of 10 enzyme-catalyzed processes. The initial stage in the breakdown of glucose to extract energy for cellular metabolism is glycolysis. Glycolysis is divided into two phases: energy-requiring and energy-releasing. Glycolysis is the process of breaking down glucose to create energy. It generates two pyruvate molecules, ATP, NADH, and water. The process occurs in a cell's cytoplasm and does not require oxygen. It can be found in aerobic and anaerobic organisms.

Here,

When glycolysis happens, energy is released, and this energy is used to build four molecules of ATP. As a result of this, glycolysis generates a net gain of two ATP molecules.

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Phase is a a noticeably different form or state of the substance. When energy is added to or removed from a system, matter can change states.

Solids, liquids, gases, but also plasma are the four states of matter that may be found in daily life. However, a number of additional states of matter have been found. Some of these additional states are created when a material transitions among 2 states of matter and doesn't actually exhibit the characteristics of either state.

When energy is added to or removed from a system, matter can change states. This energy often originates from changes in temperature or pressure. Phase transitions or phase changes occur when matter changes states. Phase is a a noticeably different form or state of the substance.

Therefore, phase is a a noticeably different form or state of the substance.

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Answer:

The oxygen will occupied 84.7 L.

Explanation:

Ideal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P*V = n*R*T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

In this case:

Replacing:

768 mmHg* V= 3.5 mol* 62.36 [tex]\frac{mmHg*L}{mol*K}[/tex] *298 K

Solving:

[tex]V=\frac{3.5 mol*62.36\frac{mmHg*L}{mol*K}*298 K }{768 mmHg}[/tex]

V= 84.7 L

The oxygen will occupied 84.7 L.

Answer:

Water molecules sticking to other water molecules

Explanation:

Each water molecule can form four hydrogen bonds with neighbor molecules. The surface tension produced by cohesion makes it possible for light objects to float on water without sinking (e.g., water striders walking on water).

The final temperature of the mixture is 218.1°C.

The Specific Heat of gold 0.0123 J.

Specific heat is known to be the amount of energy required to raise the temperature of a unit mass of a substance by 1 degree. It is a physical property of matter, usually expressed in units of Joules/Kilograms/Kelvin (J/kgK).

Mass of gold = 325 g

Heat absorbed by water = mass of gold x specific heat x temperature change

325 x 0.128 x 405

Heat absorbed by water = 154,400 J

Heat capacity of water = mass of water x specific heat

200 x 4.184

Heat capacity of water = 836.8 J/degree Celsius

Final temperature = (heat absorbed by water ÷ heat capacity of water) + Initial temperature

Final temperature = (154400 ÷ 836.8) + 22

Final temperature = 218.1°C

Q = mcΔT

836.8 J/°C = 325 × c × (427°C - 218.1°C)

836.8 J/°C = 325 × c × 208.9

c = 836.8/(325 × 208.9)

c = 836.8/67,892.5

c = 0.0123 J

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Left C would be neither linear and neither planar since, in accordance with the preceding definition, it has a tetrahedral form.

Since no links cross one another, graph A is planar. Because so many connections overlap, graph B is not plane. Additionally, graph B's linkages cannot be rearranged in a way that makes it planar.

A compound is said to be planar if every atom inside it is located on the same plane. - Take the organic compound, for example. When the carbon atoms of an organic molecule lay within a single plane, the complex is referred to as a planar compound.

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Answer: I believe the 1st and 3rd reactions are better obtained through reference sources and the 2nd and 4th are easiest and safest to measure in the laboratory.

Explanation:

I am also working on this Pre-lab right now, and I looked back at the first question to help get my answer. In the first question (a), it is noted that ammonia gas and gaseous hydrochloric acid are both potentially dangerous in gaseous form. I saw that both the 1st and 3rd reactions contained noxious gases (I knew this because there was a (g) in both of these reactions). Using the knowledge from the first question that the noxious gases were potentially dangerous, I assumed that those reactions were the ones that are better obtained through the reference sources. The 2nd and 4th reactions did not contain any noxious gases, so I assumed those ones were easiest and safest to measure in the laboratory. Hope this helps!

Density is an intensive property as it does not depend on the quantity of the substances Whereas mass and volume are extensive property. Therefore, the density of a rock with a volume of 6.7 mL and a mass of 12.34 grams is 1.841g/ml.

Density tells about the compactness of the substances, how much dense is the substances in other words. Object that is more denser than water they just sink in the water.

Mathematically,

Density of rock = Mass of the rock ÷volume marked on the graduated cylinder

volume of rock= 6.7 mL

mass of rock= 12.34 grams

Substituting all the values in above formula, we get

Density of rock=  12.34 grams÷6.7 mL

                           =1.841g/ml

Therefore, the density of a rock with a volume of 6.7 mL and a mass of 12.34 grams is 1.841g/ml.

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The electrons in the 2p sub level have the smallest binding energies, which is the best explanation for how the spectrum is consistent with the electron shell model of the atom. Option D is correct as a result.

Photoemission spectroscopy, often referred to as photoelectron spectroscopy, measures the amount of energy emitted by electrons from solids, gases, or liquids via the photoelectric effect. This procedure involves getting the energy for the electrons from an outside source, such as sunlight.

The photoelectric effect is a process in which electrons receive energy from an external source, such as sunlight, become excited, and transition from the ground state to the excited state. As a result of this process, there is a constant flow of electrons, which in turn causes a flow of energy.

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The empirical formula of the compound with 0.123 moles of bromine and 0.123 moles of lead would be  PbBr.

The empirical formula of a compound is the chemical formula of the compound where the component atoms are in their simplest, whole-number ratios.

In this case, the compound contains bromine and lead:

Br = 0.123 mole

Pb = 0.123 mole

Dividing through by the smallest mole

Br = 0.123/0.123 = 1

Pb = 0.123/0.123 = 1

Thus, bromine and lead are present in a 1:1 ratio in the chemical formula.

In other words, the empirical formula of the compound containing 0.123 moles of bromine and 0.123 moles of lead is PbBr.

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slate is the correct answer i PROMISE

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The mole ratio of the reactants and products is

a. 2 : 1 : 2

b. 1: 2:1:1

The ratio of the mole quantities of any two compounds present in a balanced chemical reaction is known as the mole ratio. A comparison of the ratios of the molecules required to accomplish the reaction is given by the balancing chemical equation. The coefficients of each species in the reactants and products are used to calculate the mole ratio of the reactants and products. The mole ratio of the reactants and products, as demonstrated by the equation in the question, is 2: 1: 2 and 1:2:1:1 respectively.

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Option C. Decomposition reaction: a substance involved is oxygen.

A decomposition reaction is a type of chemical reaction where a single compound is broken down into two or more simpler substances. In the reaction, energy is typically used to break down the bonds that hold the molecules of the compound together. Oxygen is often a substance involved in the reaction, as it is used to provide the energy needed to break down the compound. When oxygen is involved, the reaction is sometimes referred to as an oxidation reaction.

Since the question is not complete, here's the full task:

Which of the following statements correctly identifies the decomposition reaction and describes a substance involved?

Choose the right option:

A. Combustion reaction: a substance involved is oxygen

B. Combustion reaction: a substance involved is a hydrocarbon

C. Decomposition reaction: a substance involved is oxygen

D. Decomposition reaction: a substance involved is a hydrocarbon

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Answer:

both are caused by heating

Answer:

C if not A

Explanation:

The specific heat of water is equal to 1200 joules / (36 grams × (240C - 220C)) = 16.7 joules/gram・°C.

Temperature is a measure of the average kinetic energy of the particles in a material. It is measured in degrees on the Celsius, Kelvin and Fahrenheit scales. Temperature is an important factor in many physical and chemical processes, such as the rate of chemical reactions, the speed of sound, the intensity of light and the properties of gases.

The specific heat of water, c, is calculated using the equation c = Q / (m × ΔT), where Q is the amount of heat energy, m is the mass of the sample and ΔT is the change in temperature.

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The concentration of the final solution is 1.41[tex]\frac{mol}{L}[/tex].

Now, first calculate the number of moles of first solution:

[tex]M_{1} =\frac{no. of moles of solution}{total volume of solution}[/tex]

no. of moles we have to find

total volume is 0.0352L and molarity of solution is 1.66M

The total number of moles of solute present in a given solution per litre is known as its molarity. In contrast to mass, which varies as the system's physical circumstances vary, the volume of a solution changes as a function of changes in the system's physical qualities, such as pressure and temperature. This has an impact on the molality of the solution. The symbol M, sometimes known as a molar, denotes molarity.

[tex]1.66=\frac{n}{0.0352}[/tex]

on solving we get,

n=0.0584 mol

Now, find the number of moles of second solution by the same formula used to find the moles of first solution,

molarity of second solution is 0.892M and total volume is 0.0167L

Now, put the values in the formula,

[tex]0.892=\frac{m}{0.0167}[/tex]

On solving we get,

m=0.0149 mol

and to find the concentration of new solution number of moles is equal to the sum of moles of first solution and second solution.

x=m+n

x=0.0584+0.0149

x=0.0733 mol

Now, molar concentration is,

[tex]M=\frac{x}{V}[/tex]

[tex]M=\frac{0.0733}{0.352+0.0167}[/tex]

On solving we get,

M=1.41[tex]\frac{mol}{L}[/tex]

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Answer: The product and reactant must be balanced

Explanation:

Answer:

A

Explanation:

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Yes, the aerosol given off by an e-cigarette can contain dangerous chemicals, such as nicotine, ultrafine particles, volatile organic compounds, and heavy metals.

Inhaling these chemicals can increase the risk of lung and heart disease.

E-cigarettes are becoming increasingly popular as an alternative to tobacco-based cigarettes. However, many people are unaware of the potential dangers associated with using e-cigarettes. The aerosol produced by e-cigarettes can contain not only nicotine, but also other chemicals and particles that can be harmful to the user’s health. These include ultrafine particles, volatile organic compounds, and heavy metals such as lead and nickel.

When these particles and chemicals are inhaled, they can cause inflammation and irritation of the lungs and airways, leading to a variety of respiratory illnesses.

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Answer:

The most common and abundant pigment is chlorophyll a. A photon strikes photosystem II to initiate photosynthesis. Energy travels through the electron transport chain, which pumps hydrogen ions into the thylakoid space. This forms an electrochemical gradient.

The diagram on the right shows the correct representation of the hydrogen bonding between thymine and adenine base pairs.

Thymine is one of the four nitrogenous bases found in DNA. It is a pyrimidine base that pairs with Adenine in DNA to form a base pair. Thymine is essential for the proper replication and expression of genetic information and is the only base that bonds with Adenine in DNA. By forming base pairs, thymine helps to maintain the structure of DNA. It also helps to prevent errors in replication and transcription. Thymine is also found in RNA, but instead of bonding with Adenine, it bonds with Uracil.

The hydrogen bonds form between the nitrogenous bases of the two complementary strands of DNA. The thymine molecule has two hydrogen atoms that bind to the nitrogen atom of the adenine molecule. The adenine molecule has two hydrogen atoms that bind to the nitrogen atom of the thymine molecule. This creates a strong link between the two strands of DNA, which is essential for the replication of the genetic material.

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The temperature must be greater than 50.5°C and less than 100°C.

What is temperature ?

Temperature is a physical property that is used to measure the average kinetic energy of particles in a system, such as a gas, liquid, or solid. It is measured in units of degrees on the Celsius, Fahrenheit, or Kelvin scales.

Temperature is related to the average kinetic energy of particles in the system, and is affected by the number of particles, their mass, and the strength of their interactions.

Which temperature range is typical?

Core temperature is 98.6 F on average (37 C). However, the average body temperature might be anywhere from 97 F (36.1 C) to 99 F (37.2 C) or higher. Depending on the period of year or how busy you are, your body temperature may change. In general, elderly people's temperature are lower than those of younger people.

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1,3-dichloro-2-butene and 1,1-dichloro-1-butene.Geometrical isomerism, also known as cis-trans isomerism, occurs when a molecule has two or more  structural isomers that differ in the spatial arrangement of the atoms.

Cis-trans isomerism is only possible when the molecule has at least one carbon-carbon double bond. In this type of isomerism, the two isomers differ in the orientation of the substituent groups around the double bond.  1,3-dichloro-2-butene and 1,1-dichloro-1-butene both contain a carbon-carbon double bond and are therefore capable of geometrical isomerism. 1,4-dichlorobenzene does not contain a carbon-carbon double bond and therefore is not capable of geometrical isomerism. 4,5-dimethyl-2-pentyne also does not contain a carbon-carbon double bond and is therefore not capable of geometrical isomerism.

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Answer: Cu is oxidized while Au is reduced. The oxidizing agent is Au while the reducing agent is Cu

Answer:

Both blanks are "Ag"

(:

Explanation:

Matter with a Dull luster reflects little light from its surface.

Minerals with dull luster reflect very little light.

The term "luster" refers to the light reflection from a mineral's surface. To define lustre, mineralogists use specific terminology. The mineral's metallic or non-metallic nature can be used to categorise lustre in a straightforward manner. Metallic lustre can be seen in opaque, sparkling minerals like pyrite. Quartz is one example of a mineral with a non-metallic shine.

Due to their coarse granulations, which scatter light in all directions and resemble a Lambertian reflector, dull (or earthy) minerals have little to no shine. Kaolinite is one Example.

Luster                  Appearance

Adamantine            Sparkly

Earthy                    Dull, clay-like

Pearly                    Pearl-like

Resinous            Like resins, such as tree sap

Silky                    Soft-looking with long fibers

Vitreous                    Glassy

Minerals are inorganic solids that exist in nature and have a distinct chemical composition and crystal lattice structure. Even though thousands of minerals in the earth have been found, only ten minerals—plagioclase, quartz, orthoclase, amphibole, pyroxene, olivine, calcite, biotite, garnet, and clay—make up the majority of the crust's volume.

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Thermal energy always moves from higher energy area to lower energy area over a temperature gradient.

Thermal energy is a form of energy by virtue of temperature of a body. As the temperature of a body increase its thermal energy increases. Thermal energy or heat energy transfers though medium and vacuum from higher energy area to lower energy area.

Heat transfer can be through conduction in solids, convection in fluids and by radiation through space. In conduction, the thermal energy easily transfers through a chain of close packed molecules.

In all these mode of heat transfer heat energy is flowing from a hotter region to a colder region.

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