in which reaction is an atom of one element converted into an atom of another element

(I would appreciate a thanks, a rating and/or a Brainliest rating if this helped you)

Answer:

2.35 x 10^-19 joules

Explanation:

The energy (E) of a photon can be calculated using the following formula:

 E = hν

where h is Planck's constant (6.626 x 10^-34 joule seconds) and ν is the frequency of the radiation.

So, to calculate the energy of a photon with a frequency of 3.54 x 10^14 hertz, we can substitute the values in the formula:

 E = (6.626 x 10^-34 J s) x (3.54 x 10^14 Hz)

E = 2.35 x 10^-19 joules

Therefore, the energy of a photon of radiation with a frequency of 3.54×10^14 hertz is 2.35 x 10^-19 joules.

Answer:

Season 5 lol

Explanation:

Answer:

season 1

Explanation:

the man was shot rip

The final pH of the solution is 2.261.  To find the pH of the solution, we need to know the concentration of H+ ions in the solution.

First, we need to calculate the number of moles of HCl added to the solution.

Number of moles of HCl = mass / molar mass

Number of moles of HCl = 200 mg / 36.46 g/mol = 0.00549 mol

Since HCl is a strong acid, it dissociates completely in water to form H+ and Cl- ions. Therefore, the concentration of H+ ions in the solution is equal to the concentration of HCl:

[H+] = [HCl] = 0.00549 mol / 1.00 L = 0.00549 M

The pH of the solution can be calculated using the formula:

\(pH = -log[H+]\)

Substituting the value of [H+], we get:

pH = -log(0.00549)

pH = 2.261

Therefore, the final pH of the solution is 2.261.

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The chemical name of the aspirin is acetylsalicylic acid.                

It is a commonly used medication that belongs to a class of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). Aspirin is primarily used for pain relief, reducing inflammation, and reducing fever. It works by inhibiting the production of prostaglandins, which are involved in the body's inflammatory response.    

Aspirin is available over-the-counter in various doses and is used to treat a variety of conditions, including headache, menstrual cramps, arthritis, and cardiovascular disease. Aspirin works by inhibiting the production of prostaglandins, which are involved in the body's inflammatory response.

Aspirin is also used as a blood thinner to reduce the risk of blood clots that can lead to heart attack or stroke. However, it should be used with caution in some individuals, such as those with a history of stomach ulcers or bleeding disorders, and under the guidance of a healthcare provider.      

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Answer:

2.5 silly = 0.00025 kilosilly

Explanation:

To convert: \(2.5\) silly to kilosilly

Solution:

Relation between \(2.5\) silly and kilosilly is given as follows:

1 silly = \(\frac{1}{1000}\) kilosilly

Now use this formula to convert \(2.5\) silly to kilosilly.

\(2.5\) silly\(=\) \(\frac{2.5}{1000}\) kilosilly

Here, \(\frac{2.5}{1000} =0.00025\)

So,

2.5 silly = 0.00025 kilosilly

The correct answer to the sulphur dioxide statements is option B

1- It dissolves in water to produce a solution with a pH less than pH 7: This statement is correct. Sulfur dioxide dissolves in water to form sulfurous acid, which is a weak acid and has a pH less than 7.

2-It is used as a food preservative: This statement is incorrect. Sulfur dioxide is sometimes used as a food preservative, but it is not a common practice due to concerns about its potential health effects.

3-It changes potassium manganate(VII) from colourless to purple: This statement is incorrect. Sulfur dioxide does not react with potassium manganate(VII), so it will not change its color.

4-It is produced by the combustion of sulfur-containing fossil fuels: This statement is correct. Sulfur dioxide is one of the primary pollutants produced by the combustion of fossil fuels such as coal and oil, which contain sulfur compounds.

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Answer:

D

Explanation:

I believe the answer is D.

Emerging scientific ideas are new theories or ideas that are gaining attention in the scientific community, but have not yet been fully accepted or confirmed.

Emerging ideas refer to the new and innovative ideas or theories that have yet to gain full scientific acceptance. While a scientific consensus is a view or theory that has been universally accepted and confirmed by multiple experiments or research, an emerging scientific idea is a new and unproven theory or idea that is gaining attention in the scientific community. These emerging ideas may also be referred to as scientific hypotheses. In contrast to scientific consensus, emerging scientific ideas have not yet been subjected to rigorous testing and confirmation.

They are generally proposed to explain new observations or experimental results, which have not yet been fully understood or explained by established scientific theories. Emerging scientific ideas can have the potential to challenge the current scientific consensus. If an emerging scientific idea is found to be valid, it can ultimately lead to the establishment of a new scientific consensus. For example, the emerging scientific idea of the Higgs boson particle led to the discovery of a new field in particle physics, which is now an established scientific consensus.

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Answer: literally anything

Explanation:

im guessing ur talking about science & the periodic table!

1 : any of more than 100 substances that cannot by ordinary chemical means be separated into different substances Gold and carbon are elements. 2 : one of the parts of which something is made up There is an element of risk in surfing. 3 : the simplest principles of a subject of study the elements of arithmetic.

Answer:

2. The balanced equation is given below

2KClO₃ —> 2KCl + 3O₂

18 moles of oxygen, O₂ were obtained.

3. 21 moles of oxygen, O₂.

Explanation:

2. Determination of the number of mole of oxygen produced.

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2KClO₃ —> 2KCl + 3O₂

From the balanced equation above,

2 moles of KClO₃ decomposed to produce 3 moles of O₂.

Finally, we shall determine the number of mole oxygen, O₂ produced by the reaction of 12 moles of potassium chlorate, KClO₃. This can be obtained as follow:

From the balanced equation above,

2 moles of KClO₃ decomposed to produce 3 moles of O₂.

Therefore, 12 moles of KClO₃ will decompose to produce = (12 × 3)/2 = 18 moles of O₂.

Thus, 18 moles of oxygen, O₂ were obtained from the reaction

3. Determination of the number of mole of oxygen, O₂ produced by the reaction of 14 moles of KClO₃.

From the balanced equation above,

2 moles of KClO₃ decomposed to produce 3 moles of O₂.

Therefore, 14 moles of KClO₃ will decompose to produce = (14 × 3)/2 = 21 moles of O₂.

Thus, 21 moles of oxygen, O₂ were obtained from the reaction

To make an E9 mixture 8657.14 gal of E7 should be mixed with 3000 gal of E10

Given to us is the amount of ethanol in the E10 mixture is 10% of 3000 gallons:

Ethanol in E10 = 10% × 3000 gal = 0.10 × 3000 gal = 300 gal

To solve this problem, we can set up an equation based on the amount of ethanol in each mixture.

Let x represent the amount of E7 mixture (in gallons) that needs to be added to the E10 mixture to obtain the desired E9 mixture.

The amount of ethanol in the E7 mixture is 7% of x gallons:

Ethanol in E7 = 7% ×  gal = 0.07 × gal

The resulting E9 mixture will contain 9% ethanol of the total volume of 3000 + x gallons:

Ethanol in E9 = 9% × (3000 + x) gal = 0.09 × (3000 + x) gal

According to the problem, the resulting E9 mixture contains 906 gallons of ethanol:

Ethanol in E9 = 906 gal

Now we can set up the equation:

Ethanol in E10 + Ethanol in E7 = Ethanol in E9

300 gal + 0.07x gal = 906 gal

Subtracting 300 gal from both sides:

0.07x gal = 606 gal

Dividing both sides by 0.07:

x = 606 gal / 0.07

x = 8657.14

Therefore, approximately 8657.14 gallons of E7 mixture should be mixed with 3000 gallons of E10 to make an E9 mixture.

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Complete question: Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by volume. For example, E10 is a mixture of 10% ethanol and 90% gasoline. How much E7 should be mixed with 3000 gal of E10 to make an E9 mixture?

Between OH and C=O, the strong nucleophile is OH and the strong electrophile is C=O.

1. OH (hydroxide ion) is a strong nucleophile because it has a negative charge on the oxygen atom, which allows it to donate its lone pair of electrons to an electrophilic center.
2. C=O (carbonyl group) is a strong electrophile because the carbon atom has a partial positive charge due to the electronegativity difference between carbon and oxygen atoms in the double bond. This makes the carbon atom highly susceptible to nucleophilic attack.

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Answer:

Explanation:

1 )  D)5,000,000

Compared to the chemical oxidation of one atom of carbon, a nuclear fission reaction using one atom of uranium can yield about 5000000____ times the energy output.

Energy in fission reaction comes from the conversion of mass into energy . This process results into creation of enormous amount of energy . But in the oxidation reaction of carbon , bonds are broken and new bonds are formed in which energy is used and released . The net energy released is difference of energy evolved minus energy used up . This difference is not much . Hence in such chemical reaction , energy released is not much .

2 ) B)The mass number is just an estimated mass measurement that is not precise.

In such calculation , the mass number used is just an estimated mass number and not the precise mass of particles involved . Hence , due to lack of precision in calculation , mass number appears to be constant . But actually there is decrease in mass in both fission and fusion reaction .

3 )  D

In fission reaction , large atomic nuclei splits into smaller nuclei to attain stability .

Answer:

Explanation:

its a compound

The balanced chemical equation for the reaction of H3PO4 with NaOH is given by:H3PO4 + 3NaOH → Na3PO4 + 3H2OTo find the concentration of the unknown H3PO4 solution, we need to determine the number of moles of NaOH required to reach the equivalence point.

This can be done using the following equation:moles of NaOH = Molarity × volume (in liters) of NaOH usedmoles of NaOH = 5.000 × 10⁻² mol/L × 7.02 × 10⁻³ L = 3.510 × 10⁻⁴ molWe can see from the balanced chemical equation that 1 mole of H3PO4 reacts with 3 moles of NaOH. Therefore, the number of moles of H3PO4 present in the 5.40 mL sample is given by:moles of H3PO4 = (1/3) × moles of NaOH = (1/3) × 3.510 × 10⁻⁴ mol = 1.170 × 10⁻⁴ mol.

The volume of the H3PO4 solution is given as 5.40 mL. Converting this to liters gives:volume of H3PO4 solution = 5.40 × 10⁻³ LUsing the volume and the number of moles of H3PO4, we can calculate the concentration of the unknown H3PO4 solution as follows:concentration of H3PO4 = moles of H3PO4 / volume of H3PO4 solutionconcentration of H3PO4 = 1.170 × 10⁻⁴ mol / 5.40 × 10⁻³ L = 0.02167 mol/LTherefore, the concentration of the unknown H3PO4 solution is 0.02167 mol/L. We express this answer using four significant figures as 0.02167 mol/L.

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Answer:

The answer is mitochondrion

Answer:

B) Mitochondrion

Explanation:

I took the question, and got it right.

To calculate the heat change in kJ when 3.245 x 10^23 pg of phosphorus pentachloride (PCl5) are produced in the given reaction. So, the heat change in the reaction when producing 3.245 x 10^23 pg of phosphorus pentachloride is approximately -1.31 x 10^-7 kJ.

To calculate the heat change in kJ for the given reaction, we first need to determine the moles of phosphorus pentachloride produced.
Using the molar mass of phosphorus pentachloride (208.24 g/mol), we can convert the given amount of 3.245 x 10^23 pg into moles:
3.245 x 10^23 pg = 3.245 x 10^-2 g
3.245 x 10^-2 g / 208.24 g/mol = 1.559 x 10^-4 mol
Now we can use the molar enthalpy of the reaction (-84.2 kJ/mol) to calculate the heat change:
-84.2 kJ/mol x 1.559 x 10^-4 mol = -0.0131 kJ or -13.1 J
Therefore, the heat change for the production of 3.245 x 10^23 pg of phosphorus pentachloride in this reaction is -13.1 J or -0.0131 kJ.

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The given statement "Carbon in the ocean originates from the atmosphere" is true because Carbon is one of the most vital elements on Earth and is involved in various biogeochemical cycles, including the carbon cycle.

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The correct question would be as

Carbon in the ocean originates from the atmosphere. Please select the best answer from the choices provided. True or False

C. Under these conditions, hydrogen / ethanol will release more energy in 1 second is the correct answer.

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The hydrogenation process is a chemical reaction that involves adding hydrogen to vegetable oils, which are naturally liquid at room temperature. This process is typically carried out by food manufacturers to convert liquid oils into solid fats.

During hydrogenation, unsaturated fats present in vegetable oils are chemically modified. These unsaturated fats have double bonds in their molecular structure. The hydrogenation process aims to break some of these double bonds and add hydrogen atoms to the fatty acid molecules. The addition of hydrogen atoms to the unsaturated fatty acid chains changes their structure and causes them to straighten out. This straightening effect leads to the formation of a more solid or semi-solid fat. The degree of hydrogenation determines the final consistency of the fat. Fully hydrogenated fats are solid, while partially hydrogenated fats tend to be semi-solid or have a creamy texture.

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Answer:

Explanation:

First off, you need to find the number of moles of iron oxide (Fe2O3) present in 480kg. The equation is mol = mass (g) / Mr

- you're given the mass of Fe2O3 in kg, so just need to covert to g; = 480 x 1000 = 480,000g

- Mr of Fe2O3 is found by adding all relative atomic masses from the Periodic Table;

2 x Fe = 2 x 56 = 112

3 x O = 3 x 16 = 48, therefore Mr of Fe2O3 = 112 + 48 = 160

- now divide the mass by the Mr to find mol Fe2O3 = 480,000 / 160 = 3000 mol

You know from the equation that 3 x CO reacts with Fe2O3, so you multiply number of Fe2O3 mol x 3 = 9000 mol

Now you need to find mass of CO; based on the formula mol = mass (g) / Mr, you can rearrange this to make mass the subject; mass (g) = mol x Mr

Mr of CO = 12 + 16 = 28

Therefore mass CO (g) = 9000 x 28 = 252,000g (or 252kg).

The mass of carbon monoxide needed to react with 480kg of iron oxide comes out to be  252kg. This calculation can be done using stoichiometry concept.

Stoichiometry is a part of chemistry that help us in making relationship between reactant and product from quantitative aspects.

The balanced equation is

\(Fe_{2} O_{3} +3CO\rightarrow 2Fe+3CO_{2}\)

The molar ration of Ferric oxide to Carbon monoxide is 1:3

Moles of carbon monoxide= 3×moles of Ferric oxide

                                            =3(given mass ÷ Molar mass)

                                            =3[(480 x 1000)÷{(2 x 56)+(3 x 16 )}]

                                             =9000 mole

Mass of Carbon monoxide=molar mass of Carbon monoxide×Moles of                carbon monoxide

                                              =(12 + 16)×9000 mole

                                              =252,000g

                                             = 252kg

Thus mass of carbon monoxide is 252kg.

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Answer:

True

Explanation:

Oxidation and reduction always occur simultaneously. Gave example when a substance is oxidized or reduced? 1) The substance gaining oxygen or losing electron is oxidized. 2) The substance losing oxygen ( or gaining electron) is reduced. hope this helps you :)

The oxidizing agent in the reaction Fe + \(AgNO_3\)→ \(Fe(NO_3)_3\) + Ag is option a \(AgNO_3.\)

A redox reaction is one in which the oxidation states of two species undergo changes. Iron is oxidized in the reaction, while silver nitrate is reduced. One of the reactants is being reduced, whereas the other is being oxidized.The oxidizing agent is the species that is being reduced, and it is the species that accepts electrons.

Fe is being oxidized in this reaction. Therefore, it cannot be the oxidizing agent, nor can\(Fe(NO_3)_3\). In contrast, \(AgNO_3.\)  is being reduced, which means it is accepting electrons. This is why\(AgNO_3.\)  is the oxidizing agent.The correct answer is  option a.

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Answer:

A

Explanation:

This is because in the graph shown line A has a quite greater impact of refraction than line B .

Hence, we can conclude that line A has the greater reaction at a faster rate.

Because sodium has a valency of 1, the mass equivalent of a photon is 3.37 1036 kg. Emissions with a wavelength of 446 nm give sodium flames their distinctive yellow hue.

In order to answer this issue, we must first determine the photon's energy. We then use an equation to convert that energy to mass energy. We can get the mass equivalent of a photon, as requested in the question, using mass equivalent.

The special relativity theory of Einstein led to the equality of mass and energy. Which merely means that energy can be transformed into mass and the reverse.

E=h×c/λ

E = energy of photon

h = planck's constant =6.626×10^−34Js

c = speed of light = 3×10^8m/s

λ= Wavelength of photon = 589nm=598×10^−9m

E=3.37×10^−19J

From mass energy equivalence we know,

E=mc^2

M=3.37×10^−36kg

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Answer:

1.) can represent either the relative number of molecules, or the relative number of moles  

2.)MULTIPLY all the SUBSCRIPTS in the molecule by the COEFFICIENT.

i dont know the last one

Explanation:

None of the given options represents the equation for a zero-order half-life.The equation for zero-order half-life is:t1/2 = [A]0/2k  the correct answer to the question is none of the given options.

The zero-order half-life is the time required for the concentration of a reactant to decrease by half in a zero-order reaction. In a zero-order reaction, the rate of the reaction is constant and independent of the concentration of the reactant.This equation shows that the half-life of a zero-order reaction is directly proportional to the initial concentration of the reactant and inversely proportional to the rate constant. This means that a higher initial concentration of the reactant or a lower rate constant will result in a longer half-life. In contrast, a lower initial concentration of the reactant or a higher rate constant will result in a shorter half-life.

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Answer:

creo q es electrico

Explanation:

The correct option is c. 4.26 M is the concentration of NH3 in solution,  which was calculated from the moles of HCl used in the titration.

The balanced chemical equation for the reaction between ammonia and hydrochloric acid is:

NH3 (aq) + HCl (aq) → NH4Cl (aq)

From the balanced equation, it can be seen that 1 mole of NH3 reacts with 1 mole of HCl. Therefore, the moles of HCl used in the titration can be used to calculate the moles of NH3 present in the solution.

Moles of HCl = 0.5000 M x 0.0426 L

= 0.0213 moles

Since 1 mole of NH3 reacts with 1 mole of HCl, there must be 0.0213 moles of NH3 in the 5.00 mL solution of ammonia cleaner.

Concentration of NH3 = 0.0213 moles / 0.00500 L

= 4.26 M

Therefore, the concentration of NH3 in solution is 4.26 M

The concentration of NH3 in solution is 4.26 M, which was calculated from the moles of HCl used in the titration and the balanced chemical equation for the reaction between NH3 and HCl.

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