30) The presence of ________ dramatically increases the speed at which an action potential moves along an axon.A) a capsuleB) plasma proteinC) neurilemmaD) glial cellsE) myelin

Mass of 2 mol of NH3 is 34 grams.

The number of moles of a substance is equal to the ratio of its given mass in a chemical reaction to the mass of one mole of that substance. One mole of any substance will be equals Avogadro's number, that is, 6.023 × 1023. It is also used to express concentration units such as mole per litre or molecular weight.

Mass which is symbolized as m, it is a dimensionless quantity that is representing the amount of matter in a particle or object. The standard unit of mass in the International System (SI) is the kilogram.

To calculate the mass of NH3 we use the below formula;

number of moles = weight of the substance

                                  Molecular weight

weight = number of moles × Molecular weight

weight = 2 × 17 ⇒ 34 grams

To know more about mass

https://brainly.com/question/21342570

#SPJ4

NaCl pair creation releases the most energy when the cations na, k, rb, and cs combine with chloride ion to create ion pairs in the gas phase.

Sodium chloride or sea salt both include chloride in the form of sodium chloride. Additionally, many veggies contain it. Seafood, rye, tomato, cabbage, celery, and olives are among foods that contain more chloride than others. A lot of meals also include chloride and potassium.

Because of the connection with higher than normal levels of acid in the blood, having too much chlorine in the body can be quite harmful. Kidney stones may result from it if prompt treatment is not received.

To know more about chloride visit:

brainly.com/question/1307733

#SPJ4

Isotopes are the elements which have same atomic number but different mass numbers.

Same atomic number tells that the number of protons present in those elements are same but different mass number tells that the number of nucleons is not the same.

These elements share same position in the periodic table and are stable. With the stability of isotopes it means they do not emit radiations.

The unstable isotopes are those isotopes which emit radiations and this might happen due to the atomic defect that shifts the position of particle, creating F-center which emits radiations.

These isotopes undergo radioactive decay. These decays can be alpha-decay, beta(+) decay or beta(-) decay.

Therefore, unstable isotopes means the isotopes of elements which emit radiations.

To learn more about isotopes, refer: https://brainly.com/question/11605145

#SPJ4

The theoretical yield of product is 0.210g.

To learn more about theoretical yield , refer:

https://brainly.com/question/25996347

#SPJ4

The molarity of 1.50g of [tex]CaCl_2\\[/tex] in 100 ml of the aqueous solution is 0.135M.

What is the molarity (M) of a solution?

It is the number of moles of solutes per liter of the solution. It depends upon the volume of the solution.

The equation for calculating the molarity is as follows:

[tex]M= \frac{n}{V}[/tex]

Where,

M= Molarity of the solution

n= number of moles of solute

V= volume of solution in liters

Calculation:

The chemical formula of calcium chloride = [tex]CaCl_{2}[/tex]

The molecular weight of calcium chloride = 110.98 g/mol

The number of moles  [tex]CaCl_{2}[/tex] is calculated using the following formula,

[tex]n=\frac{mass in grams}{molecular weight} \\ \\ =\frac{1.50}{110.98} \\ \\ = 0.0135 moles[/tex]

The volume of solution in liters= 0.1 L

Therefore molarity of the solution = [tex]\frac{number of moles of solute}{volume of solution in litre}[/tex]

                                                        =[tex]\frac{0.0135}{0.1}[/tex]

                                                        = 0.135M

The molarity of the calcium chloride is 0.135M.

To know more about molarity, check out:

https://brainly.com/question/26873446

#SPJ4

Answer:

Saturated solution

Explanation:

A saturated solution contains the maximum amount of dissolved solute for a given amount of solvent at a specific temperature and pressure.

The correct answer is 41.53 g.

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

H₂SO₄ + Ca(OH)₂ —> CaSO₄ + 2H₂O

Next, we shall determine the mass of Ca(OH)₂ that reacted and the mass of CaSO₄ produced from the balanced reaction. This can be obtained as follow:

Molar mass of Ca(OH)₂ = 40 + 2(16 + 1)

= 40 + 2(17)

= 40 + 34

= 74 g/mol

Mass of Ca(OH)₂ from the balanced reaction = 1 × 74 = 74 g

Molar mass of CaSO₄ = 40 + 32 + (16×4)

= 40 + 32 + 64

= 136 g/mol

Mass of CaSO₄ from the balanced reaction = 1 × 136 = 136 g

From the balanced reaction above,

74 g of Ca(OH)₂ reacted to produce 136 g of CaSO₄.

Finally, we shall determine the mass of CaSO₄ produced by the reaction of 22.6 g of Ca(OH)₂. This can be obtained as follow:

From the balanced reaction above,

74 g of Ca(OH)₂ reacted to produce 136 g of CaSO₄.

So, 22.6 g of Ca(OH)₂ will react to produce = (22.6 × 136)/74 = 41.53 g of CaSO₄.

Therefore, the mass of CaSO₄ were obtained from the reaction is 41.53 g.

To learn more about mass, refer: https://brainly.com/question/13720882

#SPJ4

Chlorine-based cleansers, quaternary ammonium, peroxyacetic acid, and iodine sanitizers are all included in the statement.

a substance or object intended to reduce or remove hazardous components (like bacteria) from surfaces. Beginning in September, sales of hand sanitizers with alcohol remained about 17percent on average higher then they were at the exact time last year.

However, antimicrobials with 60 and 95% methanol are suitable in general. The Center for Prevention and Control recommends formulas that contain 75% isopropyl alcohol and 80% (percent amount) ethanol.

To know more about sanitizer visit:

https://brainly.com/question/29545088

#SPJ4

The Data suggest that any of these possible control elements are actual control elements is all the three are appear to be control.

The data suggest that any of these possible control elements are actual control elements is that all the three elements are to be control. The mRNA produce is differed in each of the construct from the intact enhancer.  they are different from the level produced by the intact enhancer construct. control element are which remains unchanged or we can say that unaffected by the other variables.

Thus, control elements are actual control elements is all the three are appear to be control.

To more about control elements here

https://brainly.com/question/6366242

#SPJ4

The electron transport chain (ETC) used the reducing equivalents NADH and FADH2 produced by the TCA to produce ATP through oxidative phosphorylation.

To learn more about oxidative phosphorylation -

https://brainly.com/question/29104155

#SPJ4

A solution of rubbing alcohol that is 30% isopropanol and 70% water is  isopropanol is the solvent. Therefore, option A is correct.

A solute may be dissolved by a solvent, which creates a solution. In addition to being a liquid, a supercritical fluid, a solid, or a gas can also be a solvent.

We can say that isopropyl alcohol is the solvent in a mixture of water and isopropyl alcohol that is 70-30 because it has a larger volume.

Microorganisms are destroyed by a 70% isopropyl alcohol solution by causing the cell wall's plasma membrane to dissolve. The thin layer of peptidoglycan that makes up the gram-negative bacteria's plasma membrane is easily broken down by alcohol. Since it contains 70% isopropyl alcohol, it is referred to as pharmaceutical alcohol.

Thus, option A is correct.

To learn more about solvent, follow the link;

https://brainly.com/question/14797683

#SPJ1

Br-Br bonds whould be the least polar .

Different elements' atoms have varying weight and chemical characteristics. Compounds are created when atoms combine in ratios of small whole numbers.

The propensity of an atom to draw a pair of bonding electrons is measured by its electronegativity. The Pauling scale is most frequently employed. The value ranges from 4.0 for fluorine, the most electronegative element, to 0.7 for cesium and francium, the least electronegative elements.

The ability of an atom or functional group to draw electrons to itself is known as electronegativity in chemistry. An atom's electronegativity is influenced by both its atomic number and how far away from its charged nuclei its valence electrons are located.

Each atom is made up of a nucleus and one or more electrons that are linked to it. One or more protons and a significant number of neutrons make up the nucleus. Only the most prevalent type of hydrogen is neutron-free. Atoms that are neutral or ionized make up every solid, liquid, gas, and form of plasma.

In a chemical reaction, atoms cannot be formed or destroyed since they are indivisible units. The mass and chemical characteristics of each atom of a specific element are the same.

To know more about Atom please click here ; https://brainly.com/question/17545314

#SPJ4

Ca(OH)2 is sparingly soluble in water. We get this information from the Solubility product of Ca(OH)2.

The solubility product constant is the equilibrium constant for the dissolution of a solid substance into an aqueous solution. It is denoted by the symbol Ksp. The solubility product is a kind of equilibrium constant and its value generally depends upon the temperature.

We calculate the solubility product by taking the solid's solubility that is then expressed in the units of moles per liter (mol/L), known as its molar solubility.

The solubility product (Ksp) of Ca(OH)2 at 25∘C is 4. 42×10−5. From this we can infer that Ca(OH)2 is only slightly soluble in water (0.16g Ca(OH)2/100g water at 20°C) by forming a basic solution that is generally called as lime water. The solubility generally decreases with increasing temperature.

To know more about Solubility product

https://brainly.com/question/3191940

#SPJ4

The amount of radioactivity in a substance to decrease to below 0.5 %% of its initial level is 8 half-lives.

Radioactivity is the phenomenon of the spontaneous disintegration of unstable atomic nuclei to atomic nuclei to shape more energetically stable atomic nuclei. Radioactive decay is an extraordinarily exoergic, statistically random, first-order technique that happens with a small amount of mass being converted to electricity.

Calculation:-

The rate of radioactive decay is often characterized by the half-life of a radioisotope.

Half-life (+1/2) is the time of its initial level.

this w This can also be solved by way:-

N = No ( + ) where, N

= initial round

= 8 half-lives.

Learn more about radioactivity here:-https://brainly.com/question/2320811

#SPJ4

The four steps to an efficient sanitation and cleaning routine are cleaning, washing, disinfecting, and drying time.

Pest infestations can be avoided by regularly cleaning and sterilizing. Your company can keep in compliance with legal requirements regarding food safety by regularly cleaning and sanitizing. Customers and staff are protected by cleaning and sanitizing from health hazards like contaminated food and food allergies.

Sanitizing reduces the amount of bacteria on surface or items to the a safe level as determined by regulations for public health. To reduce the chance of an infection spreading, this method either cleans or disinfects surfaces or objects.

To know more about Sanitizing visit:

https://brainly.com/question/29551400

#SPJ4

The valence electrons are outer that the shell electrons with an atom and can participate in the formation of chemical bonds.

Valence electrons are outer shell electrons with an atom and that can participate in the formation of chemical bonds. In single covalent bonds, typically both atoms in the bond contribute one valence electron in order to form a shared pair.

The ground state of an atom is the lowest energy state of the atom. When those atoms are given energy, the electrons absorb the energy and move to a higher energy level.

So when ever there is any chemical reaction, the outermost. Then its bond are involving in the formation of bonds.

To know more about valence electrons

https://brainly.com/question/12717954

#SPJ4

This true pathogen is a non-coliform, gram-negative, oxidase-negative, non-motile member of the family Enterobacteriaceae shigella.

Many other applications exist for hydrogen. It is used in the chemical industry to produce cyclohexane and formaldehyde, which are intermediates in the synthesis of polymers and medicines, as well as ammonia for agricultural fertilizer (the Haber process). In the course of the oil-refining process, it is also employed to eliminate sulfur from fuels.

Hydrogen is the smallest and most prevalent element in the universe, consisting just of a hypothetical particle and a single electron. Hydrogen is thought to make about 90% of the universe that can be seen. The primary fuel which most stars "burn" to create energy is hydrogen.

To know more about Hydrogen visit:

https://brainly.com/question/11837837

#SPJ4

Now that both the air and the carbon have had an eight of electrons, this Lewis electron configuration is acceptable. The C comprises four bonding pairs, while the O has two binding pair and two lone pairs.

A molecule is an object comprised of two or more elements that are linked together chemically; the precise amount of atomic nuclei that make up a molecule is known. One hydrogen atom gets joined with one chlorine atom to form the molecule HCl(g), for instance. It is referred to as a diatomic molecule and has only two atoms.

Real molecules don't overlap and have a defined size. Thus, there is a potent, close-ranged repulsion between them.

To know more about molecule visit:

https://brainly.com/question/19556990

#SPJ4

The best reason for the random assignment of a treatment level to an experimental unit is Randomization tends to minimize the effect of uncontrolled variables such as water temperature.

The part of the investment the effect of pH level in water on the breeding habit of the moon jellyfish they put a random assignment. Randomization tends to minimize the effects of uncontrolled variables, such as water temperature. Randomization will make up for improper experimental design, data collection, and analysis. It is used to ensure the results of an experiment because if the treatment or hypothesis instead of any other external factor that we can not control. if only one group of jellyfish is affected we can re-try the experiment to see if the difference in the Ph had anything to do with the change. This is the part of the experiment.

To learn more about Randomization assignment please visit:

https://brainly.com/question/18676789

#SPJ4

Atoms in increasing order of Z[tex]_eff[/tex] for valence electron by simple or approximate method are Si<P<S<Cl.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

Learn more about atom,here:

https://brainly.com/question/13654549

#SPJ1

Your question is incomplete, but most probably your full question was,identify the list in which the atoms are ordered by increasing Zeff for a valence electron calculated by the simple or approximate method? A) P<S<Si<Cl B) Si<P<S<Cl C) Ck<S<P<Si D) S<Cl<P<Si E) Si<P<Ck<s

2-bromo-1-chloro-4-nitrobenzene is synthesized from benzene in the following sequence.

Chlorination of benzene:

This is the halogenation reaction of benzene. In this step, benzene is reacted with chlorine gas in the presence of a Lewis acid (i.e. FeCl3). This leads to the formation of chlorobenzene as shown in the red step below.

Nitration of chlorobenzene:

The chlorine atom of benzene has an ortho-paradirecting effect. Nitration of chlorobenzene thus yields para-nitrochlorobenzene as shown in the blue step below.

Bromination of 1-chloro-4-nitrobenzene:

Bromination is carried out in this step by reacting bromine in the presence of a Lewis acid. The chlorine, which is ortho-paratropic in nature, and the nitro group, which is metatropic in nature, orient the incoming Br+. (electrophilic) to the desired location. Therefore, 2-bromo-1-chloro-4-nitrobenzene is synthesized in good yield.

learn more about  Chlorination of benzene https://brainly.com/question/9397137

#SPJ4

Yes the above given reaction is a decomposition reaction.

A decomposition reaction can be defined as the chemical reaction in which one reactant breaks down into two or more products. The general format of a decomposition reaction is provided below.

AB -> A + B ; Where AB is the parent molecule (reactant) and A & B are the product molecules.

Disproportionation reaction, also sometimes called dismutation reaction, is basically a type of redox reaction involving simultaneous reduction and oxidation of atoms of the same element from one oxidation state (OS) to two different oxidation states.

NH4NO3 undergoes redox reaction to form N2O and Water

[tex]NH_{4}NO_{3}[/tex]  → [tex]N_{2}O[/tex] + [tex]2H_{2}O[/tex]

In this reaction, two nitrogen atoms in the reactant are present in different oxidation states. Hence, it is not a disproportionation reaction and is a decomposition reaction

To know more about decomposition reaction

https://brainly.com/question/16987748

#SPJ4

Le Châtelier's Principle states that we can move the equilibrium's position to the right by either adding an excessive amount of a reactant or by deleting one of products. If utilize significant amount more of one reactant.

A component that is involved at the outset of a chem reaction is known as a reactant. Products are the component(s) to the east of the arrow. A product is the substance that is also present after a chemical process has finished.

A compound that is a reactant is that which is present at the outset of a chemical reaction and changes as the reaction develops. They can also be refereed to as reagents or beginning materials.

To know more about reactant visit :

https://brainly.com/question/14225536

#SPJ4

Depending on their measured percentage mass change, they are hypotonic, isotonic, and hypertonic respectively.

A hypotonic tonic solution is any external solution that has a low solute attention and high water attention compared to frame fluids. In hypotonic solutions, there is an internet movement of water from the solution into the body.

A hypotonic answer is a solution that has lower osmotic stress than every other option to which it's miles as compared. it could additionally suggest an answer that contains a lower amount of solute compared with the solute concentration inside the other solution throughout a semipermeable membrane.

A hypertonic solution is a sort of solution that has a higher awareness of solutes at the outside of the mobile than at the interior of the cellular. Water will move out of the cellular to the vicinity of higher solute awareness inflicting the mobile to wrinkle or shrivel.

0.0 - 0.3 hypotonic

0.3-  isotonic

0.3- 1.0 hypertonic

Learn more about the hypotonic solution here:-https://brainly.com/question/4237735

#SPJ1

The highest energy strong form and enhance productivity has stain power of 15Kj/mole due to two H-H eclipsed events with the a smear energy of 4Kj/mole. Thus, the H-Br eclipses factor is 15-2(4) = 7Kj/mole.

Ethane with a bromo substituent is called bromoethane, a bromoalkane. It functions as an alkylating agent and is a common chemical building block in many synthetic strategies. It functions as a solvent, a coolant, a local anesthetic, an alkylating agent, and a carcinogen.

As a result, the 1997 Montreal Convention on Ozone Depleting Substances' phase-out criteria apply to it. Bromomethane was included in the list of ODS to also be phasing down by the London Amendments in 1990.

To know more about Bromoethane visit:

https://brainly.com/question/15319885

#SPJ4

Neutral having no preference or tendency to move one way or the other; neither acid nor base.

An atom in a molecule is given a formal charge (FC) if all chemical linkages involve equitable sharing of electrons among all atoms, regardless of their relative electronegativity.

[Number of valence electrons] = formal charge - [electrons in lone pairs Plus 1/2 the number of bonding electrons]

For carbon, there are 4 valence electrons.

There are two non-bonded electrons (it has a lone pair)

There are three bonds encircling carbon.

Consequently, formal charge = 4 - (2 + 3) = 4 - 5 = -1.

Formally, C in CH3 has a negative 1 charge.

Read more about Radical form expression at; brainly.com/question/27887772

#SPJ4

It will take 111190 GT/ 158.5 GT = 701.5 years to exhaust the fossil fuels If every year 158.5 GT of fuel is used up.

Total Carbon storage in gigatons for the following spheres of the earth are,

Atmosphere: 750 GT

Geosphere: (66000+300+3000+1580)GT = 70880 GT

Oceans:1020 GT+ 38000 GT= 39020 GT

Biosphere: 540 GT

 Storage (Gigatons)                    % of Total Storage

Atmosphere: 750  GT                            0.67%

Geosphere: 70880 GT                           63.75%

Oceans: 39020 GT                                35.1%

Biosphere: 540 GT                                 0.48%

Total Storage: 111190 GT

The carbon exchange due to plant growth and decomposition removes more carbon from the atmosphere than they put into it. Exchange between industries ,mining ,agriculture and cities in the form of fossil fuel burning put more carbon into the air than they remove. Based on the carbon emission rates listed in the box L5, a total of 158.5 GT carbon is emitted per year into the atmosphere by all sources. The double of this amount that is the total carbon emission in the atmosphere two times of the current emission rate)  is 158.5 x 2 = 317 GT .If emission stayed fixed at the given rates, the time required by the industrial society to double the amount of current carbon amount in the atmosphere will be  Industries ,mining ,agriculture and cities in the form of fossil fuel burning add 7GT/yr of carbon to the atmosphere. Therefore 317 GT of carbon will be added in 317/7 = 45.29 years.

Industrial society will add 7GT in 1 year.

Industrial society will add 317 GT in 317/7=45.29 years.

According to box L4 the total fossil fuels reserves is about 111190 GT.

According to box L5 , the number of years it would take to exhaust the fossil fuels reserves will be appx. 701.51 years.

Checking the amount of carbon emitted into the atmosphere from box L5, we can estimate that about (90+1.5+ 7+60) GT = 158.5 GT of carbon is emitted into the atmosphere every year that means the carbon in the fossil fuel is used up. The total reserve is about 111190 GT.

To learn more about Fossil fuels please visit:

https://brainly.com/question/10172005

#SPJ4

A pivot table cell can be selected by right-clicking it and choosing Show Fields List first from menu. By doing so, the field list will become visible once again and resume acting normally.

One of the fundamental tools for data is the pivot table. Many significant business concerns can be swiftly resolved with pivot tables.

Pivot Tables can be thought of as a form of visual storytelling even if they are merely tables and lack real graphics.

Most tools demand the somewhat tedious process when comparing two Table or merging them. With some exclusions, like Lumeer, numerous Pivot Table that have the same structure can be laid over.

To know more about Pivot table visit:

brainly.com/question/25583535

#SPJ4

0.204 moles of xe gas

Using the ideal gas formula, PV=nRT

n = PV/ RT

  = 5.0 L × 1.0 atm / 0.0821 × 298 K

  = 0.204

n = n Xe + n N₂

0.204 = n Xe + 1.0 mol

n Xe = 0.204 moles

To know more about the ideal gas equation click here:

brainly.com/question/18518493

#SPJ4

​

Gluconeogenesis enzymes include pyruvate carboxylase, PEP carboxykinase, fructose 1,6-bisphosphatase, and glucose 6-phosphatase.

Gluconeogenesis is the process by which non-carbohydrate substrates (such as lactate, amino acids, and glycerol) are converted into glucose. Both lactate and alanine are converted to pyruvate before entering the mitochondrion and being carboxylated to oxaloacetate (OAA) by pyruvate carboxylase (PC).

Gluconeogenesis is the process by which new glucose is synthesized from noncarbohydrate precursors, and it provides glucose when dietary intake is insufficient or absent. It also regulates acid-base balance, amino acid metabolism, and the synthesis of carbohydrate-derived structural components.

The glycolytic pathway is an important metabolic pathway in the body. It consists of a series of enzymatic reactions that convert glucose (glycolysis) into pyruvate, resulting in the energy sources adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide (NADH).

To learn more about gluconeogenesis and glycolytic pathways, here

https://brainly.com/question/15854393

#SPJ4