which of the following statements about dna replication is true?

The oxidation of NADH initially leads to a high concentration of protons in the intermembrane space of the mitochondria.

During cellular respiration, NADH is oxidized in the electron transport chain located in the inner mitochondrial membrane. As NADH donates its electrons to the electron transport chain, it becomes oxidized to NAD⁺, releasing protons (H⁺) in the process. These protons are pumped from the mitochondrial matrix across the inner mitochondrial membrane into the intermembrane space.

This creates an electrochemical gradient, with a higher concentration of protons in the intermembrane space compared to the mitochondrial matrix. This proton gradient is a key component in the generation of ATP through the process of oxidative phosphorylation. The protons flow back into the matrix through ATP synthase, driving the synthesis of ATP.

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The statement about atoms that is FALSE from the following options is: B) Atoms are responsible for the sensation of smell.

What is an atom?

An atom is the smallest possible unit of matter that retains the chemical and physical characteristics of a component. Each element is made up of a unique kind of atom that has the same number of protons in its nucleus. In the periodic table, elements are arranged by atomic number.The following are the given options:A) Atoms compose all matter.B) Atoms are responsible for the sensation of smell.C) Atoms are the basic building block of nature.D) An atom is the smallest identifiable unit of an element.E) All of the above statements are true.Out of these given options, B) Atoms are responsible for the sensation of smell is the FALSE statement. The sensation of smell is produced by olfactory receptors in the nasal cavity, which are stimulated by molecules of various shapes and sizes.

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Answer:

Excellent question

Explanation:

In order to clarify the hypothesis it is important

Answer:

Almost everything in our surroundings represent chemical change

Explanation:

●Rusting of iron in presence of moisture and oxygen.

●Burning of wood.

●Milk becoming curd.

●Formation of caramel from sugar by heating.

●Baking of cookies and cakes.

●Cooking any food.

●Acid-base reaction.

●Digestion of food.

ANSWER

2Ba + 2HBr → 2BaBr + H2

2BiCl3 + 3H2S → Bi2S3 + 6HCl

Br2 + 2KI → I2 + 2KBr

4Fe + 3O2 → 2Fe2O3

Answer:

\(3Mg _{(s)} + N _{2(g)} → Mg_{3} N _{2(s)}\)

\(Ba _{(s)} + 2HBr_{(g)} → BaBr _{2(s)} + H _{2(g)}\)

\(2BiCl_{3(s)} + 3H_{2} S _{(g)} → Bi _{2} S _{ 3(g)} + 6HCl _{(g)} \\ \)

\(Br_{2(g)} + 2KI _{(g)} → I _{2(g)} +2 KBr _{(g)}\)

\(4Fe_{(s)}+ 3O_{2(g)} → 2Fe_{2} O _{3(s)} \)

Avogadro's number is the number of atoms, molecules, ions, formula units, or other particles in a mole of a substances.

Avogadro's number can be defined as the number of units in one mole of substances. it is represented by N and is equal to 6.023 ×  10²³.

Avogadro's number is the no. of particles in one mole of any substance. The conversion between moles and grams depends on the Avogadro's number. Avogadro's constant also called as Avogadro's number represented the no. of particles. it was named in honor of an Italian scientist , Amadeo Avogadro di Quarengna.

Thus, Avogadro's number is the number of atoms, molecules, ions, formula units, or other particles in a mole of a substances.

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Answer:

C. the number of atoms, molecules, ions, formula units, or other particles in a mole of a substance

Explanation:

Got it right on edge

When a metal and a nonmetal react, the metal tends to lose electrons and the nonmetal tends to gain electrons.

Elements are classified as metals or nonmetals, and it is critical to understand whether an element is a metal or a nonmetal. Metals (such as copper and aluminum) conduct heat and electricity well, whereas nonmetals (such as phosphorus and sulfur) are insulators.

Metals participate in chemical reactions and lose electrons, resulting in positively charged ions, whereas nonmetals accept electrons, resulting in negatively charged ions.

Thus, When a metal and a nonmetal react, the metal tends to lose electrons and the nonmetal tends to gain electrons.

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Answer:

Option C, developmental view point

Explanation:

A person with preservationist viewpoint will think of only preserving the natural resources and the environment. While a person with a conservationist viewpoint will think of conserving the landscape, architecture, heritage, culture, buildings, rituals, etc.  

However, a person with developmental viewpoint will think of developing resources at ease. He/She will prioritize development and comfort of customer above all.  

Hence, option C is correct

Answer:

hhhhhhhhhhhhhhhhhhhhhhhhhhhh

Explanation:

The maximum flow setting for a nasal cannula on an adult receiving oxygen therapy is typically 6 L/min. Option A is Correct.

This is because the nasal cannula delivers oxygen at a flow rate of 1-6 L/min, with each liter providing approximately 24% oxygen concentration. Higher flow rates may lead to discomfort or irritation of the nasal passages, and may also dry out the mucous membranes. In some cases, a higher flow rate may be necessary, such as in the case of severe hypoxemia, but this would require the use of a different oxygen delivery system, such as a high flow nasal cannula or a non-rebreather mask. It is important to monitor patients receiving oxygen therapy closely and adjust the flow rate as needed based on their oxygen saturation levels and clinical status. Overall, the maximum flow setting for a nasal cannula should be determined on a case-by-case basis by a healthcare provider to ensure the best possible outcomes for the patient.

Nasal cannulas are a commonly used device in oxygen therapy, providing a comfortable and efficient means of delivering supplemental oxygen to patients who require it.

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Final temperature = (12.6 x 180 + 25.7 x 125) / (12.6 + 25.7)

Final temperature = (2268 + 3212.5) / 38.3

Final temperature = 5481 / 38.3

Final temperature = 142.6 degrees c

What is temperature?

Temperature is the measure of how warm or cold something is. It is measured in degrees on a scale such as Celsius or Fahrenheit. Temperature affects many aspects of our environment such as the growth of plants and animals, the melting and freezing of water, the formation of clouds and rain, and the circulation of ocean currents. Temperature also has a direct effect on our bodies, from our body temperature to our metabolism and sweating. Changes in temperature can trigger a variety of reactions in our bodies, including shivering, sweating, and changes in blood pressure.

Therefore, Final temperature = 142.6 degrees c

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Answer:

103.2 g of AgCl can be made in the reaction

Explanation:

We state the reaction to analyse the problem:

AlCl₃ + 3AgNO₃ →  3AgCl  +  Al(NO₃)₃

We convert the mass of chloride to moles:

32 g . 1mol/ 133.34g = 0.240 moles

Ratio is 1:3. See the stoichiometry

1 mol of aluminum chloride can produce 3 moles of AgCl

Then, 0.240 will produce (0.240 . 3)/1= 0.720 moles.

We convert the moles to mass: 0.720 mol . 143.32g/1mol = 103.2 g

There are  0.3 × \(10^{-9}\) moles of \(AlCl_{3}\)  are there in 1.81  × \(10^{14}\) molecules of \(AlCl_{3}\)  .

The amount of substance in a system known as a mole is equal to the number of atoms found in 0.012 kilograms of carbon 12.

The number of moles of any substance is equal to given mass divided by molar mass of the molecule or atom or substance .

One mole is equal to 6.022 × \(10^{23}\)  atoms / ions / molecules etc .  

The number of moles is calculated as ,

n = m / M

where n = number of moles

m = given mass

M = molar mass

Since one mole contains  6.022 × \(10^{23}\) molecules .

1.81  × \(10^{14}\) molecule of \(AlCl_{3}\) contains 1.81  × \(10^{14}\) / 6.022 × \(10^{23}\) moles

Number of moles =  1.81  × \(10^{14}\) / 6.022 × \(10^{23}\)  = 0.3 × \(10^{-9}\)

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Answer:Yes

Explanation the motor would run faster because the increased electrical force increases the magnetic force in the motor

Answer:55ml

Explanation:

Two Cl-atoms form a sigma bond with sp3 hybrid orbitals. Thus, SCl2 has sp3 hybridization.

The Lewis structure shows us that the carbon atom makes 4 sigma bonds to hydrogen and has no non-bonding electron pairs. The central carbon atom combines its 2s, 2px, 2py, and 2pz valence orbitals to make four, 2sp3 hybrid orbitals. Each one of these combines with a 1s atomic orbital from a hydrogen atom.

What is hybridization of SCl2?

In its most stable state, Sulfur acts as the central atom and forms two covalent bonds with the Chlorine atoms. It also possesses two lone pairs. Due to the presence of 4 electron domains and its steric number being 4, the hybridization of SCl2 is given by sp3.

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Answer:

Aluminum is more reactive than carbon so it must be extracted from its compounds using electrolysis.

Explanation:

Even though aluminum is more abundant than iron in the Earth's crust, aluminum is more expensive than iron. This is mainly because of the large amounts of electrical energy used in the extraction process.

Answer:

a.

Explanation:

[character limit pass]

The circumstances that will cause a hurricane to increase in strength is if the hurricane moves over warmer water. Hence, option a is correct.

Hurricanes are stronger winds generated by high pressure difference.  They deteriorate quickly over land because it isolates them from the humidity and heat of tropical ocean water and causes more friction than the sea surface.

Even the warmest and most humid regions of land, like Florida's Everglades, will significantly reduce wind speeds and increase pressure in a hurricane's low-pressure center.

A storm will be greatly diminished if dry air is allowed to enter its center due to vertical wind shear. In addition, hurricanes lose strength when they cross colder water outside of the tropics.

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Answer:

an experiment where there is only one variable which means a controlled experiment is something tht is watched constantly and dosent change

Explanation:

Answer:

An experiment where there is only one variable.

Explanation:

There is only one variable in the experiment.

Answer:

Solid metal.

Explanation:

At room temperature, Chromium (Cr), a transition metal, is a solid.

Answer:

Global Warming!

Explanation:

Greenhouse gases help keeping the Earth warm for example; Carbon dioxide, methane etc. But recently there has been too much pollution which produced more greenhouse gases like; carbon dioxide...Usually trees and plants would help in keeping the air clean by eliminating carbon dioxide but as we know trees are being cut down. Which increases the amount of CO2 (chemical formula of Carbon dioxide) and they capture more heat. Which causes the temperature to gradually increase in earth and ice caps to melt in Antarctica, and causes the water levels to rise.  

The third law of thermodynamics describes the entropy of a: solid.

The third law of thermodynamics states that the entropy of a pure crystalline substance approaches zero as the temperature approaches absolute zero (0 Kelvin or -273.15 degrees Celsius). This law implies that at absolute zero, a perfectly ordered and pure crystalline solid will have zero entropy.

The third law of thermodynamics is not specific to liquids or gases but applies to solids. In a solid, the molecules are highly ordered and have fixed positions in a regular lattice structure. As the temperature decreases towards absolute zero, the thermal motion of the molecules reduces, and the system becomes more ordered, resulting in a decrease in entropy.

In contrast, liquids and gases have higher entropy compared to solids at absolute zero because their molecules have more freedom of movement and are not as tightly arranged. Therefore, the third law of thermodynamics specifically addresses the entropy of solids and does not apply to liquids or gases.

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Answer: it’s A

Explanation:

Answer:

It's A

Explanation:

The solutions which can be separated  using distillation are that of alcohol, salt and sugar with water.

It is defined as a process by which components are separated from a mixture which is liquid  by selective boiling and condensation. Dry distillation is a process of heating solids to produce products in gaseous state.

Distillation results in complete  separation of components  or may be sometimes partial.Due to partial separation,concentration of selected components increases in the mixture. It exploits  differences in  relative volatility  of components of a mixture.

It has many applications like distillation of fermented products which produces distilled beverages , in desalination and in petroleum and oil industry.

It is mainly conversion of liquid into vapor state ,which is subsequently converted back to liquid . It is used to separate volatile liquid from solids and also volatile liquids and non-volatile liquid .

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Answer:

Well, it´s dangerous because it displaces oxygen in the blood and deprives the heart, the brain and other vital organs.

Explanation:

What i mean by that is that breathing carbon monoxide reduces the amount of oxygen that can be transported in the blood stream to critical organs like the heart and brain. It can also causes E.g. dizziness, confusion, unconsciousness and even death.

I hope this answered yor question, if i did misundertood the question do tell me and i will try my best to explain it. Have a nice day!! :)

The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


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Answer: False

Explanation: The stronger oxidizing agent, and stronger reducing agent are the reactants.

The given statement is false , for a spontaneous redox reaction, the reactants are stronger oxidizing and reducing agents than the products.

Redox reactions comprise of two parts a reduced part and an oxidized part, which occur simultaneously . The part which is reduced gain electrons and hence there is a increase in oxidation state of the species.

While, the part which is oxidized looses electrons and hence there is a decrease in oxidation state of the species.During redox reactions, there is no net change in the number of electrons . Electrons which are given off in oxidation are used up in reduction.

The ion or molecule which accepts electrons is called as oxidizing agent while the ion or molecule which donates electrons is called as a reducing agent.

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Answer:

About 36%

Explanation:

Answer:

43 miles is 227040

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