what are the reactants of lactic acid fermentation

Answer:

A

Explanation:

Your answer is A

Answer:

A is the answer

Explanation:

The value of the parameter k in the equation for Fick's Law is:

Fick's Law is given by the equation:

J = -D * A * (∆n / ∆x)

where:

J is the flux or rate of diffusion,

D is the diffusion coefficient,

A is the surface area of the membrane,

∆n is the change in concentration,

∆x is the thickness of the membrane.

In this case, we need to find the value of the parameter k in the equation for Fick's Law.

The value of k is related to the diffusion coefficient (D) by the equation:

k = D / (∆n / ∆x)

We are given the following information:

Membrane thickness (∆x) = 5 × 10^(-8) m

Surface area (A) = 4 × 10^(-8) m

Initial concentration inside the cell (n(0)) = 1.4 M

Concentration after observation (n(0.8)) = 0.91 M

Concentration outside the cell (n(outside)) = 0.9 M

To find the change in concentration (∆n), we can subtract the concentration after observation from the initial concentration:

∆n = n(0.8) - n(0)

∆n = 0.91 M - 1.4 M

∆n = -0.49 M

Substituting the given values into the equation for k, we have:

k = D / (∆n / ∆x)

k = D / (-0.49 M / 5 × 10⁻⁸ m

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The answer would be scoria I believe

The mass of the 4.9% (m/m) NaCl solution that contains 7.10 g of NaCl is 145 g.

How many grams of the 4.9% (m/m) NaCl solution contains 7.10 g of NaCl?

In order to calculate the mass of the NaCl solution, we need to consider the concentration of the solution, which is given as 4.9% (m/m). This means that there are 4.9 grams of NaCl for every 100 grams of the solution.

To find the mass of the NaCl solution, we can set up a proportion based on the given information:

(4.9 g NaCl / 100 g solution) = (7.10 g NaCl / x g solution)

Cross-multiplying and solving for x, we can calculate the mass of the solution:

Therefore, approximately 145 grams of the 4.9% (m/m) NaCl solution contain 7.10 g of NaCl.

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We would need 15 moles of H2 to react with 5 moles of Cr2O3 and convert it to pure chromium.

The balanced chemical equation for the reaction between chromium(III) oxide (Cr2O3) and hydrogen gas (H2) is:

Cr2O3 + 3H2 → 2Cr + 3H2O

This equation tells us that 1 mole of Cr2O3 reacts with 3 moles of H2 to produce 2 moles of Cr and 3 moles of H2O.

If we want to know how many moles of H2 are needed to react with 5 moles of Cr2O3, we can use a proportion:

1 mole Cr2O3 : 3 moles H2 = 5 moles Cr2O3 : x moles H2

Solving for x, we get:

x = (3 moles H2 / 1 mole Cr2O3) * 5 moles Cr2O3

x = 15 moles H2

So, we would need 15 moles of H2 to react with 5 moles of Cr2O3 and convert it to pure chromium.

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Mgco3 is the compound has the atom with the highest oxidation number.

Oxidation is the cycle when a molecule loses an electron in a response with oxygen and water. A seared apple or a rusted bike are normal spots where oxidation should be visible. Oxidation states are utilized for "electron accounting". Likewise, oxidation states are a significant device for deciding responding proportions. Oxidation states are something of a "bookkeeping fiction", used to depict where electrons are investing the majority of their energy in a particle. Oxidation number is likewise alluded to as oxidation state. Nonetheless, at times these terms can have an alternate significance relying upon regardless of whether we are thinking about the electronegativity of the particles.

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Answer:When light hits CRY2, it changes shape and binds to its natural partner protein, known as CIB1. ... When light shines on the cells, the CRY2 protein binds to CIB1, which is floating in the cell. CIB1 brings along a gene activator, which initiates transcription, or the copying of DNA into mRNA.

Explanation:

Answer: Is to eat

Explanation: getting fatter

7.3 mL of NaOH are used to titrate the 10.00 mL aliquot.

The balanced equation for the reaction between NaOH and HCl is:

NaOH(aq) + HCl(aq) → H₂O(l) + NaCl(aq)

To calculate the volume of NaOH used,  determine how much HCl is left after it reacts with the CaCO₃, and then how much NaOH is required to neutralize that remaining HCl.

Step 1: Calculate the moles of HCl used to react with CaCO₃

The balanced equation for the reaction between CaCO₃ and HCl is:

CaCO₃(aq) + 2HCl(aq) → CaCl₂(aq) + H2O(l) + CO₂(g)

From the balanced equation, we can see that 1 mole of CaCO₃ reacts with 2 moles of HCl. Therefore, the number of moles of HCl used to react with the CaCO₃ is:

moles HCl = (7.50 mL)(2.00 mol/L) = 0.015 mol

Step 2: Calculate the concentration of HCl in the 125.0 mL solution

Started with 7.50 mL of 2.00 M HCl, which is equivalent to 0.015 moles of HCl. We added enough water to make a 125.0 mL solution, so the concentration of HCl in the solution is:

C = moles of HCl / volume of solution in L

C = 0.015 mol / 0.125 L = 0.12 M

Step 3: Calculate the moles of HCl remaining in the 10.00 mL aliquot

moles NaOH = moles HCl remaining in aliquot

(C of NaOH)(volume of NaOH) = (C of HCl)(moles of HCl remaining in aliquot)

(0.058 mol/L)(volume of NaOH) = (0.12 mol/L)(moles of HCl remaining in 10.00 mL aliquot)

moles of HCl remaining in 10.00 mL aliquot = moles of HCl in 125.0 mL solution - moles of HCl used to react with CaCO₃

moles of HCl remaining in 10.00 mL aliquot = (0.12 mol/L)(0.125 L) - 0.015 mol = 0.0035 mol

Substituting this into the equation gives:

(0.058 mol/L)(volume of NaOH) = (0.12 mol/L)(0.0035 mol)

volume of NaOH = (0.12 mol/L)(0.0035 mol) / (0.058 mol/L) = 0.0073 L

Step 4: Convert the volume of NaOH to mL

volume of NaOH = 0.0073 L x (1000 mL / 1 L) = 7.3 mL

Therefore, 7.3 mL of NaOH are used to titrate the 10.00 mL aliquot.

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I apologize, I made an error in my previous response. 8.92 x 1024 atoms of tin would actually weigh approximately 5.26 x 10^25 grams.

To calculate this, you can use the formula:

Weight (in grams) = Number of atoms x Atomic weight (in grams/mol)

The atomic weight of tin is 118.710 g/mol. So,

Weight (in grams) = 8.92 x 1024 atoms x 118.710 g/mol

Weight (in grams) = 1.05 x 10^26 g

Weight (in grams) ≈ 5.26 x 10^25 g

Keep in mind that this is an extremely large weight and not practically measurable as it's equivalent to 5.26 x 10^25 tons.

The two primary gases responsible for the

greenhouse effect

are carbon dioxide (CO2) and water vapor (H2O). They absorb infrared energy, which is a type of energy that is emitted from the Earth's surface, and trap it in the atmosphere.

This energy can't escape, which causes the atmosphere to warm up, resulting in the greenhouse effect.

The greenhouse effect is a natural process that helps to keep the Earth's temperature relatively stable, which is important for life.

The amount of CO2 and H2O in the atmosphere are regulated by natural processes, such as respiration and

photosynthesis

,

but human activities, such as burning fossil fuels and deforestation, have caused these levels to increase significantly over the past few decades.

This has resulted in a further increase in the temperature of the atmosphere, leading to climate change.

CO2 absorbs more infrared energy than other gases, but H2O also plays an important role in the greenhouse effect.

H2O exists in the atmosphere in both vapor and liquid forms, and is able to absorb and trap heat energy more effectively than CO2.

H2O also has the ability to reflect incoming sunlight, which further helps to keep the temperature of the atmosphere warm.

CO2 and H2O are the two primary gases responsible for the greenhouse effect because of their ability to absorb infrared energy and trap heat in the atmosphere.

These two gases are essential for regulating the temperature of the Earth and maintaining the climate.

Human activities have caused their levels to increase, resulting in a further increase in the temperature of the atmosphere and leading to climate change.  

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Answer:

to provide food to the plant also known as glucose

The balanced chemical equations for the given reactions are:

16Ag + S₈  →  8Ag₂S

2 Al + 3 Br₂  →  2 AlBr₃

2 KClO₃  →  2KCl  + 3 O₂

CH₄  + O₂  →  CO₂   + 2 H₂O

2Al  + 3 O₂  → Al₂O₃

2 H₂O₂  → 2 H₂O   + 2 O₂

A balanced equation can be defined as an equation in which the number of atoms of every element involved in the reaction is equal on either side of the chemical equation.

The law of conservation of matter has to be obeyed by a balancing of a chemical equation.

By following the law of conservation of matter, the total mass of the elements of reactants will be equal to the total mass of products in a balanced chemical equation.

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Chemically active fluids primarily aid in the mobility of dissolved silicate components and facilitate the development of the mineral grains during metamorphism.

During metamorphism, chemically active fluids that are present between the mineral grains help to promote ion movement and the re-crystallization of both old and new minerals.

Rocks that have undergone metamorphism include igneous, sedimentary, and other types of metamorphic rocks. The variations include the creation of new minerals, an increase in grain size, and adjustments to the structure or texture of the rock, depending on the chemical composition of the original rock and the degree of metamorphism.

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The percent of chloride ion in a sample if 2. 500 g of the sample produces 1. 750 g of agcl when treated with excess ag⁺ is 17.2 percent.

What is mass percent?

The ratio of the mass of the solute contained in a solution to the mass of the solution as a whole is known as the mass percent.

Explanation:

Given:

Mass of sample = 2. 500 g

Mass of AgCl = 1. 750 g

The percent of chloride ion in a sample is calculated as,

Molar mass of AgCl = 143.32 g/mol

\(Molar mass of Chlorine atom = 35.45 g/mol\)

Assume that all of the sample's chlorine has precipitated into silver chloride. As a result, the amount of chlorine in silver chloride will match the amount of chlorine in the sample.

First we have to find mass of chlorine,

\(In 143.32 g of silver chloride, mass of chlorine present is 35.45 gSo, in 1.3487 g of silver chloride, mass of chlorine present will be =35.45g/143.32 g * 1.750 g = 0.43 g\)

Therefore, the percent of chloride ion in a sample is

\(Mass of pure chloride compound = 2.500 gMass of chlorine = 0.43 g%Chlorine = 0.43/2.5 *100%Chlorine = 17.2 %\)

Hence, the percent of chloride ion in a sample is \(17.2%\) percent.

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Answer:

The answer is "Auger".

Explanation:

The Auger effect is an effect size when the vacancy of even an atom throughout the inner shell was complemented by the release of even an electron from the same atom. Whenever a central electron is lost, a higher energy level electron can drop into the void and release energy, which can be the result.

Answer:

0.225=947

0.216=x

0.225x=947×0.216

0.225x=204.552

x=204.552/0.225

x=909.12

An independent variable in chemical reactions showing reactivity of metals with  hydrochloric acid is concentration of acid.

Chemical reactions are defined as reactions which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.

There are several characteristics of chemical reactions like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are three types of chemical reactions:

1) inorganic reactions

2)organic reactions

3) biochemical reactions

During chemical reactions atoms are rearranged and reactions are accompanied by an energy change as new substances are formed.

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The required mass of water vaporized is 15.5 grams, from a 250 gram sample of water at the boiling point had 35.0 kj

Given: Mass of water (m) = 250 gHeat added (q) = 35.0 kJHeat of vaporization (ΔHvap) = 40.6 kJ/mole

To find:Mass of water vaporized (x) Formula:q = ΔHvap × nx = (q / ΔHvap) × nMass = moles × molar mass

We know that molar mass of water (H2O) = 18 g/molMoles of water vaporized (n) = (35.0 kJ / 40.6 kJ/mol) = 0.861 mol

Therefore,Mass of water vaporized (x) = 0.861 mol × 18 g/mol= 15.5  

Detailed Solution: According to the given statement,250g of water was taken at its boiling point and 35.0 kJ of heat was added to it, we need to find how many grams of water were vaporized. To solve this question, first, we need to know the heat of vaporization for water, which is 40.6 kJ/mole. It means to vaporize 1 mole of water, 40.6 kJ of heat is required.

Mass of water (m) = 250 g Heat added (q) = 35.0 kJHeat of vaporization (ΔHvap) = 40.6 kJ/molen = q / ΔHvapn = (35.0 kJ / 40.6 kJ/mol) = 0.861 molMoles of water vaporized (n) = 0.861 mol

Therefore, Mass of water vaporized (x) = 0.861 mol × 18 g/mol= 15.5 g Hence, the required mass of water vaporized is 15.5 grams.

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The intermediates produced in nucleophilic aromatic substitution (SNAr) and electrophilic aromatic substitution (SEAr) reactions differ in terms of their charge and reactivity.

In nucleophilic aromatic substitution, the intermediate formed is a negatively charged species called an arenium ion. This intermediate is formed when a nucleophile attacks the aromatic ring, replacing a leaving group. The negative charge on the intermediate is delocalized over the ring system, stabilizing the intermediate. The arenium ion is relatively stable and can undergo subsequent reactions to complete the substitution process.

In electrophilic aromatic substitution, the intermediate formed is a positively charged species called a sigma complex. This intermediate is formed when an electrophile attacks the aromatic ring, displacing a proton. The positive charge is localized on the carbon atom that is directly bonded to the substituent and is attached to the aromatic ring. The sigma complex is highly reactive and can be stabilized by resonance with the aromatic ring. It undergoes further rearrangements or elimination of a proton to form the final substituted aromatic compound.

Hence, the intermediate in nucleophilic aromatic substitution is a negatively charged arenium ion, while the intermediate in electrophilic aromatic substitution is a positively charged sigma complex.

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Answer:0

Explanation: zero because it is the most stable form of oxygen in its standard state

Answer:

Temperature, concentration, and particle size of the reactants affect the collision frequency and energy of collisions in a chemical reaction, as predicted by the collision theory.

Explanation:

According to the collision theory of chemical reactions, for a reaction to occur, reactant particles must collide with sufficient energy and proper orientation. The temperature, concentration, and particle size of the reactants can affect the likelihood and frequency of these collisions and therefore impact the reaction rate.

Overall, the collision theory of chemical reactions suggests that temperature, concentration, and particle size all play important roles in determining the rate of a chemical reaction. By controlling these factors, it is possible to manipulate the rate of a reaction to achieve desired results.

Answer: A

Explanation: A

Answer:

X= -Y + 2/2     Y=-X + 3/2

Explanation:

I don't know how to simplify it anymore. You would get x=-y+3/2 and y=-x+3/2

Answer:

Explanation:

(-1/2,1)

ask

ask the question bro, i will be ready to assist.

maths/ch3m/physics/bio

It is because the high temperature superconductor was more affordable، easy to use and more efficient than before.

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Answered by Benjemin

The % ee (enantiomeric excess) of the mixture can be calculated as 7.8%.

Enantiomeric excess (% ee) is a measure of the purity of a chiral compound or mixture, indicating the percentage of one enantiomer present in excess over the other. To calculate % ee, we need the observed rotation value and the specific rotation of the pure enantiomer. The formula for % ee is:

% ee = (observed rotation / specific rotation) × 100

The observed rotation is 0.78 and the specific rotation is not provided. However, if we assume a specific rotation of 1 (arbitrary units), we can calculate a relative % ee:

% ee = (0.78 / 1) × 100 = 78%

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Answer:

c i think

Explanation:

The following which are medical applications of radiation include the following below:

This is referred to as the transmission of energy through space and it usually occurs at the speed of light thereby making it a very fast method of heat transfer when compared to the others. Radiation are used for various purposes such as immigration for searching luggage etc.

It is also used for medical reasons such as cancer therapy as the radiation help in destroying the cancerous cells thereby making it easy for their removal from the body system. It is also used for genetic engineering in the creation of new types of substances through the modification of nucleic acids such as DNA etc.

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