The Approximate Diameter Of The Spherical Nucleus Of Hydrogen-1 Atom Is 1 X 10-13 Cm. Estimate The Density (2024)

Where corrosion protection is vital and the conduit is threaded in the field, the threads must be coated with a(n) Approved electrically conductive, corrosion-resistance compound.

What is corrosion protection?

A corrosion protection method may be a technique used to minimize corrosion such as the application of anti-corrosion coating, cathodic protection, or other methods that make metal resistant to corrosion.

Metal corrosion in most situations is usually slowed, managed, or maybe put to a stop utilizing the right techniques.

What does one mean by corrosion?

Corrosion may be a natural process which converts refined metal to their more stable oxide.It is the gradual destruction of materials {usually metals} by chemical reaction with their environment.In the most common use of the world, this suggests electrochemical oxidation of metals in reaction with an oxidant such as oxygen.

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Use only sterile water, as was previously indicated. Water is made bacteriostatic by adding benzyl alcohol. You can immediately decide which is suitable based on allergies.

If you are allergic to benzyl alcohol, avoid using or drinking bacteriostatic water altogether and opt for sterile water.

Another distinction is with indications. The FDA regulates the purposes for which drugs are used or what is disclosed on their labels. While sterile water is designated for both irrigation and injection, bacteriostatic water is only intended for injections.

The difference of several uses, as has previously been established, is crucial. Due to the absence of a bacteriostat, sterile water can only be utilized once.

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This statement is true.

When all of the features of a compound cannot be explained by a single structure, numerous structures of that compound are employed to explain all of the attributes of the given molecule.

This phenomenon is referred to as resonance, and all structures are referred to as resonant structures.

As a result, resonance structures are collections of Lewis structures that explain the delocalization of electrons in a polyatomic ion or molecule, and the larger the extent of electron delocalization, the lower the overall energy in the system. Thus, resonance is known to increase compound stability by lowering energy.

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Answer:

Explanation:

Magnetic field is the magnetism charge around a magnetic body

what is the magnetic field?

a region around a magnetic material or a moving electric charge within which the force of magnetism acts.

This is how it looks like in a magnetic field:

3 structural isomers can be drawn to represent the chemical formula C5H12.

When two or more organic compounds have the same molecular formula but different structures, they are said to be structural isomers, also referred to as constitutional isomers. The two molecules below share the same chemical formula, however they are distinct due to variations in the methyl group's placement.

It is an alkane, C5H12. There are 2 to the power (n-4)+1 isomers of an alkane, where n is the number of carbon atoms. Therefore, there are three structural isomers that might exist for C5H12 using the formula. They are methyl butane, n-pentane, and isopentane (dimethyl propane).

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Process in which co2, is released as a by-product of oxidation-reduction reactions is known as krebs cycle.

In the mitochondrial matrix, acetyl-CoA is converted to carbon dioxide by the citric acid cycle, which also involves the reduction of coenzymes to produce ATP for the electron transport chain.

The acetyl group of acetyl-CoA is oxidized to make two molecules of CO2 in a succession of eight steps, while also producing one ATP. Additionally, reduced high-energy molecules like NADH and FADH2 are created.

Each glucose molecule produces two acetyl-CoA molecules so, the Krebs cycle must be completed twice to produce the four CO2, six NADH, two FADH2, and two ATPs.

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Submicroscopic events are the structure and behavior of the matter or particle that can use for the macroscopic observations of the matter.

What are submicroscopic elements?

Sub microscopic elements are very minute and small particles that can be only seen by a microscope. These are small particles that together make the big matter.

Macroscopic particles are big particles that are constituted by small particles.

Thus, the structure and behavior of the matter or particle that can be used for macroscopic observations of the matter are submicroscopic occurrences.

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Answer:

NaCl: sodium chloride.

NaBr: sodium bromide.

NaF: sodium fluoride.

NaI: sodium iodide.

KF: potassium fluoride.

Explanation:

Hope this helps!

In the biochemistry, Where reactants are normally dissolved in water, The strongest bond or interaction in the water is polar covalent bonds.

Water is a good solvent for polar and ionic compounds. the polarity and hydrogen bonding capability of water makes excellent solvent for polar molecules.In water ionic bonds come apart much more than covalent bonds.

The polarity of water molecules is what makes a widely good solvent . The positive part of the water molecules attract negative part of solute and negative part of water attract positive part of solute.

Water greatly weaken the electrostatic forces and hydrogen bonding between ionic and polar molecules by competing for their attraction.

Hydrogen bonds are weaker than ionic bond and covalent bonds but stronger than dipole dipole interaction.

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Answer:

C. to the left of the arrow

Explanation:

The reactants (the chemicals that initiate the chemical reaction) are represented onthe left, while the products (the substances that result from the reaction) are represented on the right. An arrow sign ("→" commonly read aloud as "yields") separates the two.

Sorry if I'm wrong

Answer: C

Explanation:

C

Scientific investigations can be used to reach the solution to the problem. The hypothesis of the experiments can be performed and the results and findings should be reported. Thus, option A is correct.

What is Scientific investigation?

Scientific investigations have been defined as the series of steps that are used to solve the question and test the hypothesis to reach the solution. It uses logical means to experiment and research the topic.

After conducting an experiment the observed data, results, and findings must be reported so the process and the technical results can be used to define the issue or the problem that acts as a conclusion.

Therefore, option A. Rick must report his findings.

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Your question is incomplete, but most probably your options were,

A. Report his findings.

B. Throw away his experiment notes.

C. Report that squid swims faster in warm water.

D. Change his hypothesis.

The approximate concentration of reaction product in a solution that has an absorbance of 0.7 at ph 6.0 is based on the equation A = εbc given in the passage, the concentration c is the absorbance A divided by the absorptivity ε in a 1 cm path length cell. 0.7 divided by approximately 1400 gives 500 μM.

A = εbc

0.7 = 1400 x c

7/14000 = 1/2000 = 0.0005 = 5x10^-4 = 500 μM

1 μM = 1 x10 ^-6

The concentration of a substance is the amount of solute present in a given volume of solution. Concentration is usually expressed in molarity, defined as the number of solutes in 1 L of solution. Solution concentration is a measure of the amount of solute dissolved in a given amount of solvent or solution.

Concentrated solutions are solutions that contain relatively large amounts of solutes. Dilute solutions are solutions that contain relatively small amounts of solutes. The definition of concentration means the amount of an ingredient or part relative to other ingredients or parts. An example of concentration is the amount of salt to water in a brine solution.

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The atomic number of oxygen is 8. The mass number of an oxygen atom with 7 neutrons is 15.

What is atomic mass?

Atomic mass is the average mass of the atom. It is measured in atomic mass units, that is Dalton. The mass number is calculated by the number of neutrons and atomic number.

The atomic number is the number of protons present in the atoms. The atomic number of oxygen is 8

The mass number can be calculated by adding those units

atomic number + number of neutrons

Mass number = 8 + 7 = 15

Thus, the mass number of an oxygen atom with 7 neutrons is 15.

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Nitrogen gas is the major component of air. a sample of nitrogen gas in a glass bulb weighs 243 mg. 2.43 × 10-4 kg is this mass in si base units of mass (kilograms).

Nitrogen, or N, using its scientific abbreviation, is a colorless, odorless element. Nitrogen is in the ground under our feet, in the water we drink, and in the air, we breathe. In fact, nitrogen is the most abundant element in the Earth's atmosphere, with approximately 78% of the atmosphere being composed of nitrogen.

Nitrogen is commonly used during sample preparation for chemical analysis. Used to concentrate and reduce the volume of liquid samples. Nitrogen is also important for the chemical industry. It is used in the production of fertilizers, nitric acid, nylon, dyes, and explosives*. Exposure to very high concentrations of pure nitrogen can cause dizziness, drowsiness, displacing oxygen from the air, unconsciousness, and death.

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Control Experiment: Those experiment where a control is taken as a reference to notice the changes in same reaction in the presence of external stress.

Need for a control in a experiment: The control is required to analyse the effect of stress applied to reaction. For e.g. If there are two compounds AB and XY & they are undergoing displacement reaction to form AX & BY, But all sudden another salt let MN is added into the reaction then there are possibilities of formation of different products depending upon the reactivity of initial reactants and external compound. The product can be same as our Control i.e. AB & XY if MN remains inert in the reaction. That's why control is important to compare the results.

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Ions are any molecules that have a charge. (positive or negative.) Group 1 atoms have 1 valence electron, so their ions are formed by giving away one electron. Group 7 atoms have 7 valence electrons, so their ions are formed by gaining one electron. This process gives the atom a full shell of 8, which makes it stabilized.

Answer:

a solution which resists changes in pH when acid or alkali is added to it is known as Buffer solution

The number of oranges to be eaten each week to meet the requirement is 7.

How are the RDA calculations done?

Mass of vitamin C is 70 mg.That is it is equal to 0.070 g.

as 1 mg=1×10[tex]^-3[/tex] g. And 60 mg is equal to 0.060 g according to this conversion.

The mass of orange in ounces is given as 3 oz.

As 1 oz=28.3495 g.Therefore,3 oz=(3×28.3495)g

which is equal to 85.045 g.

Given that 100 g orange has 0.070 g of vitamin C.Mass of vitamin C in 85.045 g of oranges is,

0.070/100×85.045=0.0595 g

Vitamin C consumed in 1 day is 0.060 g. Therefore in a week vitamin C consumed is 7×0.060=0.42 g.

To calculate the number of oranges to be eaten in a week it is calculated as,

Number of oranges=mass of vitamin C consumed in a week /mass of 3 oz oranges

Number of oranges=0.42 g/0.0595 g

=7.05≈7

Therefore,number of oranges to be eaten in a week are 7.

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Carbon (C) contains the largest number of moles.

Number of Moles of a substance can be defined as the ratio of given mass of the substance to the Molecular Mass of the substance.

We can write,

Number of moles = Given Mass / Molecular Mass euation1

Given Mass of Na, C, Pb, Cu, Ne each = 10.0g

Molecular mass of Na = 22.9898 u

Molecular mass of C = 12u

Molecular mass of Pb = 207.2u

Molecular mass of Cu = 63.546 u

Molecular mass of Ne = 20.1797 u

After substituting the values of molecular mass and given mass of elements in equation1 , we will get

Number of moles of Na = (10/22.9898) = 0.4350

Number of moles of C = (10/12) = 0.8333

Number of moles of Pb = (10/207.2) = 0.0483

Number of moles of Cu = (10/63.546) = 0.1574

Number of moles of Ne = (10/20.1797) = 0.4955

So, we can clearly see that Carbon contains the largest number of moles.

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If ADP (two phosphates) were hydrolyzed to AMP, how would you expect this reaction to compare with the hydrolysis of ATP to AMP?

ADP and ATP are both hydrolyzed to give AMP, the only difference remains in the side product formed which is pyrophosphate for ATP hydrolysis and inorganic phosphate for ADP hydrolysis.

What is ATP hydrolysis?

Adenosine triphosphate (ATP) contains highly energetic phosphoanhydride bonds that, when broken, such as occurs in muscles, release chemical energy through a catabolic reaction process called ATP hydrolysis. Adenosine diphosphate (ADP) and an inorganic phosphate are the end result (Pi). Adenosine monophosphate (AMP), energy, and another inorganic phosphate can all be produced by further hydrolyzing ADP (Pi). The final step in the energy chain from food or sunlight to useful work like muscle contraction, the creation of electrochemical gradients across membranes, and life-sustaining biosynthetic processes is ATP hydrolysis.

ATP + H 2 O → AMP + Pyrophosphate(PP)ADP + H 2 O → AMP + Inorganic Phosphate(Pi)

Thus, ADP and ATP are both hydrolyzed to give AMP, the only difference remains in the side product formed which is pyrophosphate for ATP hydrolysis and inorganic phosphate for ADP hydrolysis.

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Correct metal is aluminum

Martina has a sample of an unknown substance she measures the substance. its mass is 13.5 grams, and its volume is 5 cm³ so here density concept is seen.

Density = mass/volume

So 13.5/5 = 2.7

This density is same as aluminum that's why this metal is aluminum.

Aluminum is a chemical element with the symbol Al and atomic number 13 aluminum is a silvery-white, lightweight metal. It is soft and malleable. aluminum is used in a huge variety of products including cans, foils, kitchen utensils.

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Answer:Aluminum

Explanation:

The concentration of sodium is high outside the cell (extracellular fluid) and the concentration of potassium is high inside the cell (cytoplasm).

Potassium is important for keeping the body hydrated and with sodium support cellular function (sodium-potassium (Na⁺/K⁺) pump).

The sodium-potassium pump releases three Na+ ions, while in the same time two K+ ions exit the cell. For this process one molecule of ATP is consumed.

The sodium and potassium cations move against the concentration gradients.

The sodium-potassium pump keeps a higher concentration of sodium extracellularly and a higher level of potassium intracellularly.

It is very important for many physiological processes in organism.

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U-235 is utilized for fuel for nuclear power plants and the nuclear reactors that run naval ships and submarines

U-238 makes up 99.27% of natural uranium, together with 0.72% of U-235 and 0.005% of U-234. U-235 is the most often used isotope of natural uranium in nuclear power plants, but because it only makes up 0.72% of natural uranium, it must be enriched in order to be used as fuel in these facilities. The U-238 uranium isotope is the most prevalent and the heaviest of the three naturally occurring uranium isotopes. The uranium fuel is put together in a nuclear reactor so that a regulated fission chain reaction may occur. By splitting the U-235 atoms, heat is produced. This heat is then utilized to create steam, which spins a turbine and powers an electricity-generating generator.

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The volume occupied by a 22.2 g sample of gold having a density of 0.01932 kg/cm3.

As we know that the density of a given substance is :

Density = mass/volume

Now to find the volume, reshuffle the formula:

volume = mass/ density

Now,

density = 0.01932 kg/cm3

mass = 22.2g = 0.0222 kg

Putting the values,
volume = 0.01932/0.0222

volume = 1.49 cm3

The volume is 1.49 cm3.

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When the difference between a measured value and the known value is expressed as a percentage error, it is usually written as either negative or positive.

How do introduce differences in measured values?

The accepted terminology to introduce differences in measured values during experimentation and data collection is to introduce this difference with the sing based on the first data (either positive or negative).

In conclusion, when the difference between a measured value and the known value is expressed as a percentage error, it is usually written as either negative or positive.

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A compound that binds to a receptor but does not activate the neuron is known as an Antagonist.

A receptor is a large protein molecule on a neuron that gets activated when a ligand binds to it such as a drug or hormone, or when electrical impulses pass through it.

An antagonist is a drug or hormone that binds to receptor, but instead of activating the receptor, it blocks or dampens the activation of the neuron. Antagonist drugs are used to interfere with the normal function or operation of a protein receptor.

Depending on the nature of the antagonist or the receptor it's bound to, the effects of antagonists may be permanent or temporary.

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To dilute the concentrated protein solution to make 40mL of a 2mg/mL solution, take 8mL of the concentrated stock and add 32mL of solvent.

What is concentrated protein?

Unattached or attached to an atom, an electron is a negatively charged subatomic particle (not bound). One of the three main types of particles inside an atom, along with protons and neutrons, is an electron that is linked to the atom.

An atom's nucleus is made up of electrons, protons, and neutrons. The positive charge of a proton balances out the negative charge of an electron. An atom is in a neutral state if its protons and electrons are equal in number.

They have a mass that is considerably lower, exist outside of the nucleus, and display both wave- and particle-like properties. Since an electron is also a fundamental particle, it is unreinforced and unbroken.

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To prove to someone that the clear material is a mixture and not a compound, you could put the solution in a cup and then let the water evaporate. The baking soda will stay in the cup.

What is baking soda?

Baking soda is a NaHCO₃. Its chemical name of sodium bicarbonate. It is a salt of carbonates. It is used in making dishes. This is used to make cakes or other fermented foods.

Thus, you may put the solution in a cup and then let the water evaporate to demonstrate to someone that the clear substance is a mixture rather than a compound. The cup will hold the baking soda.

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A 22.2 g sample of gold with a density of 0.01932 kg/cm3 will occupy a volume of 1.1491 cm3.

Density, denoted by ρ, of a substance is its mass per unit volume. It shows the ratio between a substance mass and the volume it occupies. To solve for density, the formula is given by

ρ = mass / volume

Given a substance density, we can compute for its mass or volume using the same formula and vice versa.

But before inputting the values, convert the mass from g to kg to match the unit of density. (1 kg = 1000g)

mass = 22.2 g = 22.2 / 1000 = 0.0222 kg

To compute for the volume a sample of gold occupies,

volume = mass / ρ

where mass = 22.2 g = 0.0222 kg

ρ = 0.01932 kg/cm3

volume = 0.0222 kg / 0.01932 kg/cm3

volume = 1.1491 cm3

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The approximate power per area emitted by the inside wall of an oven when baking a cake in w/m2 is 6 x 3^4.

What is power per area?

Comparing the surface power density of various industrial energy sources is crucial. Geographer Vaclav Smil popularised the idea. In the pertinent literature, the phrase is sometimes abbreviated to "power density," which may cause confusion with similar or hom*onymous concepts.

The power obtained per square metre of Earth's surface area utilised by a particular energy system, including all supporting infrastructure, manufacturing, fuel mining (if relevant), and decommissioning, is expressed in W/m2. Due to the high power density of fossil fuels and nuclear energy, substantial amounts of electricity may be produced in very small spaces at power plants.

6 x 3^4 (for reference Humans are about 300 K)

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