why dont we just transfer electron directly from nadh to o2

Answer:

Name Fluorine

Atomic Mass 18.998 atomic mass units

Number of Protons 9

Number of Neutrons 10

Number of Electrons 9

Explanation:

Answer:

C. I (iodine)

Explanation:

it would be Iodine because it has 5 energy levels of electrons and has a total of 74 neutrons inside its nucleus!

Hope this helps, have a good day!

Answer:

WHT55

Explanation:

i experianced this before

At −92°C, the vapour pressure of the substance X is 5.5 atm

According to Clausius Clapeyron equation,

ln (P₂/P₁) = -ΔHvap /R (1/T₂ - 1/T₁) -------> (i)

Here,

P₁ = 1 atm

T₁ = 90°C = (90 +273)K = 363K

T₂= -92°C = (-92+ 273)K = 181 K

ΔHvap = 17 KJ/mol

R = 8.314 J/K/mol

To find: P₂

Substituting the above given values in equation (i) we get,

ln (P₂/P₁) = -ΔHvap /R (1/T₂ - 1/T₁)

ln(P₂/ 1 atm)= -17 KJmol⁻¹ /  8.314 JK⁻¹mol⁻¹ ( 1/181K -1/363K)

ln P₂ = -17 KJmol⁻¹ /  0.008314 KJK⁻¹mol⁻¹ ( 0.0028K)

2.303 log (P₂) = - 730240.55 atm

log (P₂) = - 730240.55 atm/ 2.303

log (P₂) = -317082.306 atm

P₂ = antilog (-317082.306)

P₂  = 5.5 atm (upto two significant figures)

Thus, the vapour pressure of X at −92°C is 5.5 atm.

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Answer:

ooh sorry, but will this help you now:

Ocean dynamics define and describe the motion of water within the oceans. Ocean temperature and motion fields can be separated into three distinct layers: mixed (surface) layer, upper ocean (above the thermocline), and deep ocean. Ocean currents are measured in sverdrup (sv), where 1 sv is equivalent to a volume flow rate of 1,000,000 m (35,000,000 cu ft) per second.

Surface currents, which make up only 8% of all water in the ocean, are generally restricted to the upper 4…

Explanation:

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Answer:

The formula is CnH2n+1OH

Explanation:

Explanation:

1.False

2.False

3.True

4.True

5.False

The coordination number (C.N.) is 6 and oxidation number (O.N.) is +4 of the metal atom.

C.N. = 6; O.N. = +4

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The mass of aluminum needed to completely react with 3.83 mol of hydrochloric acid is approximately 34.44 grams.

To determine the mass of aluminum needed to react with 3.83 mol of hydrochloric acid, we need to use the stoichiometry of the balanced equation.

From the balanced equation: 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)

We can see that the mole ratio between aluminum (Al) and hydrochloric acid (HCl) is 2:6, or simplified, 1:3. This means that for every 1 mole of aluminum, we need 3 moles of hydrochloric acid.

Given that we have 3.83 mol of hydrochloric acid, we can set up the following proportion:

1 mol Al / 3 mol HCl = x mol Al / 3.83 mol HCl

Simplifying the proportion, we find:

x = (1 mol Al / 3 mol HCl) * 3.83 mol HCl

x = 1.277 mol Al

Now, we need to calculate the mass of aluminum using its molar mass. The molar mass of aluminum is approximately 26.98 g/mol.

Mass of aluminum = 1.277 mol Al * 26.98 g/mol Al

Mass of aluminum = 34.44 g

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Answer: C

Explanation: because Pangaea broke apart and made smaller continents.

Answer:

its 19 I'm pretty sure about

Answer:

c is correct and my girl friend

i) Atomic mass = 83.117 amu.

ii) Atomic mass = 58.679207 amu.

iii) Apparent atomic mass = 126.943682 amu.



i) For the first hypothetical element, we are given three isotopes with their respective isotopic masses and natural abundances. To calculate the atomic mass, we multiply the mass of each isotope by its relative abundance, and then sum up the results. Using the provided values:

Atomic mass = (78.9 amu × 10.4%) + (82.9 amu × 15.0%) + (83.9 amu × 74.6%)

          = 8.2016 amu + 12.435 amu + 62.4814 amu

          = 83.117 amu

Therefore, the atomic mass of the hypothetical element is approximately 83.117 amu.

ii) Similarly, for the second hypothetical element, we have five isotopes with their isotopic masses and natural abundances. Using the same formula:

Atomic mass = (57.93 amu × 67.76%) + (59.93 amu × 26.16%) + (60.93 amu × 1.25%) + (61.93 amu × 3.66%) + (63.93 amu × 1.16%)

          = 39.235368 amu + 15.675888 amu + 0.761625 amu + 2.265438 amu + 0.741888 amu

          = 58.679207 amu

Therefore, the atomic mass of the second hypothetical element is approximately 58.679207 amu.

iii) To find the apparent atomic mass of the contaminated iodine, we consider the total mass of the sample, which includes the mass of naturally occurring iodine and the synthetic radioisotope. The apparent atomic mass is calculated by multiplying the mass of each component by its respective atomic mass, and then dividing by the total mass. Using the given values:

Apparent atomic mass = [(12.3849 g × 126.9045 amu) + (1.00070 g × 128.9050 amu)] / (12.3849 g + 1.00070 g)

                    = (1568.47174005 amu + 128.9322205 amu) / 13.3856 g

                    = 1697.40396055 amu / 13.3856 g

                    = 126.943682 amu

Therefore, the apparent atomic mass of the contaminated iodine is approximately 126.943682 amu.

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Accommodating involves one party sacrificing their own interests to satisfy the other party's needs while collaborating involves both parties working together to find a mutually beneficial solution.

Conflicts can be quickly resolved and positive relationships between the parties involved by being accommodating. For instance, one student might decide to abandon their idea in favor of the other student's idea if two students in a group project have opposing opinions on how to approach a task. This can help the group get along better and avoid conflicts.

On the other hand, working together can result in creative answers that benefit both parties. When two people work together, they combine their distinctive perspectives and ideas, which can result in innovative solutions that neither party would have thought of on their own. For instance, if two students disagree on how to complete a group assignment, they can work together and combine their ideas to come up with a more thorough and workable solution.

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Answer:

Having high melting point.

Explanation:

The original product has high melting point as compared to the mixture product because in the original product, the element is present in its pure state and we know that pure substances have high melting point as compared to mixture substances due to the presence of strong intercellular forces between them which is hard to break so that's why we can say that the original product has high melting point.

Answer:

reactants are mercury and oxygen.the product is mercurricoxide.

4 liters of the 70% solution are required by the chemist.

8 liters of saline solution divided by 25%

Saline solution at 25% = 0.25 x 8 = 2 liters

Let there be x liters of saline solution at 70%.

Salt = 8 plus x

40% of salt is equal to 25% of saline solution plus 70% of saline solution.

2 + (70/100)x = (40/100)(8 + x)

2 + 0.7x = 0.4(8 + x)

2 + 0.7x = 3.2 + 0.4x

0.7x - 0.4x = 3.2 - 20.3

x = 1.2

x = 1.2 / 0.3

x = 4

4 liters of the 70% solution are required by the chemist.

The following equation can be used to determine the volume or concentration of a concentrated or diluted solution: M1V1 = M2V2.

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Do these things right away when a chemical splashes on your eye.Use water to irrigate your eye.For the at least 20 minutes, use pristine, lukewarm tap water.Use soap and water to wash your hands.To ensure that no chemicals or soap are still on your hands, thoroughly rinse them.Remove your contacts.

Safety Glasses, goggles, and shields — These products shield the face and eyes from chemical spills.Additionally, they protect them against gases, vapors, and dust.Skin Protection - Clothing items like gloves, boots, & coveralls should be used in order to protect the skin.

Chemical splashes are incidents where dangerous substances unintentionally spill, project, aerosolize, or otherwise disseminate inside a laboratory setting.

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Answer:

the volume stays the same, but the shape changes to fit the new container

Explanation:

because the same amount/volume of liquid is being placed in a new container, the new container has a different shape to the old, thus changing the liquids shape but not volume.

Eighteen turns of the Calvin cycle would produce 36 G3P molecules.

The Calvin cycle, also known as the dark cycle, is a metabolic process that occurs in plants and algae. The cycle is made up of a series of chemical reactions that convert carbon dioxide into glucose.

Glyceraldehyde 3-phosphate (G3P) is a three-carbon sugar that is one of the products of the Calvin cycle. Six CO2 molecules and six ribulose-1,5-bisphosphate molecules enter the cycle to create twelve 3-phosphoglycerate molecules.

Twelve ATP molecules and twelve NADPH molecules are then used to transform the 3-phosphoglycerate molecules into twelve G3P molecules. Ten out of twelve G3P molecules are used to regenerate six ribulose-1,5-bisphosphate molecules, while two are used to create glucose or other organic compounds.

Each turn of the Calvin cycle produces one G3P molecule, while each glucose molecule requires two G3P molecules. This implies that 36 G3P molecules would be produced by 18 turns of the Calvin cycle.

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The silver piece with mass of 44.0 g is an actual silver.

A mass can be defined as a dimensionless quantity representing the amount of matter in a particle or object. The SI unit of mass is kg.

A density is defined as the measurement of how tightly a material is packed together.

To calculate the purity of silver first we have to calculate density of both the silver.

4.0 ml = 4.0 cm3

Density of 20.0 g silver = 20.0g/4.0 cm3 = 5.0 g/ cm3

Density of 44.0 g silver = 44.0g/4.0 cm3 = 11.0 g/ cm3

Thus, the density of 44.0 g of silver is near to density of pure silver hence, 44.0 g of silver is a pure silver.

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The average soil resistivity near the substation is approximately 5.612 Ω·m.

To calculate the average soil resistivity near the substation, we can use the Wenner four poles equal method and the given soil resistance readings.

The formula for calculating soil resistivity using the Wenner method is:

ρ = (π * spacing * sum of resistance) / (2 * π * probe length)

Where:

ρ = Soil Resistivity

spacing = Distance between the current electrodes (m)

sum of resistance = Sum of the measured soil resistance values (Ω)

probe length = Length of the probe (m)

In this case, the probe distance intervals are 1, 2, 3, 4, and 5 m, and the corresponding soil resistance values are 16.4, 5.29, 3.05, 1.96, and 1.36 Ω, respectively.

Let's calculate the average soil resistivity:

spacing = 1 m (since the distance between the current electrodes is not mentioned, we assume it to be 1 m)

sum of resistance = 16.4 + 5.29 + 3.05 + 1.96 + 1.36 = 28.06 Ω

probe length = 5 m (as given in the intervals)

Using the formula, we have:

ρ = (π * spacing * sum of resistance) / (2 * π * probe length)

= (π * 1 * 28.06) / (2 * π * 5)

= 5.612 Ω·m

Therefore, the average soil resistivity near the substation is approximately 5.612 Ω·m.

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Answer:

The higher the activation energy, the slower the chemical reaction will be.

Explanation:

your welcome

Answer:

The activation energy of a chemical reaction is closely related to its rate. Specifically, the higher the activation energy, the slower the chemical reaction will be. This is because molecules can only complete the reaction once they have reached the top of the activation energy barrier.

Explanation: Each and every chemical reaction require some amount of activation energy to begin. The activation energy enables the reactants to move and overcome forces of repulsion. The subsequent collisions between atoms facilitates the breaking of existing bonds and the formation of new ones.

Answer:

meter. 1.5×10^-6

Litter. 2×10^-5

Kilo Gram. 1.7

Kilo Gram. 3.4 ×10^-3

I hope you understood that and if you don't understand write in comments

To calculate the molarity of the solution, we need to use the formula:

Molarity = moles of solute / liters of solution

Since we are given the moles of lactic acid (0.325) and the volume of solution in milliliters (250.0 ml), we first need to convert the volume to liters by dividing by 1000:

250.0 ml / 1000 = 0.250 L

Now we can substitute the values into the formula:

Molarity = 0.325 moles / 0.250 L

Molarity = 1.30 M

Therefore, the molarity of the solution containing 0.325 moles of lactic acid in 250.0 ml of solution is 1.30 M.

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from the human eye i.e from a macroscopic view, a sugar particle is bigger than a salt particle.

from a microscopic view,  a mole of salt or sugar means 6.02×10²³ molecules of them. The molecular weights of salt and sugar are 58.45 and 342.3, respectively. hence, sugar is heavier than salt. sugar molecules are bigger than the ions of dissolved salt and this is one of the reasons why sugar takes more time compared to salt for dissolving in any liquid.

Sugar, or sucrose, has the formula, C12H22O11. So one molecule has 45 atoms in it. The formula for salt is NaCl so one formula unit has 2 atoms. . Clearly, one molecule of sugar would be bigger than one formula unit of salt.

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Answer:

I hope this helps

Explanation:

Carbon dioxide molecules can absorb and emit infrared radiation, and they are one of the most abundant constituents of Earth's atmosphere.

Thus, the correct options are:d) Are one of the most abundant constituents of Earth's atmospheree) Can move in many ways, thus absorbing and emitting infrared radiation

Carbon dioxide is a trace gas present in the Earth's atmosphere. It's a vital component of Earth's carbon cycle, which helps to regulate Earth's temperature and support life as we know it. Carbon dioxide molecules are one of the most common gases in the atmosphere, accounting for around 0.04% of the Earth's atmosphere.

The greenhouse effect is caused by carbon dioxide, methane, and other greenhouse gases. When the Sun's energy reaches the Earth's surface, it is absorbed and then radiated back into space as infrared radiation. Greenhouse gases absorb this radiation and trap it in the atmosphere, which causes the Earth's temperature to rise and the climate to change.

Carbon dioxide molecules are capable of absorbing and emitting infrared radiation due to their molecular structure, which consists of one carbon atom and two oxygen atoms. This property of carbon dioxide is the main reason it's classified as a greenhouse gas.

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