Calculate the number of C70 molecules that can be made from one mole of
carbon atoms.
The Avogadro constant = 6.02 × 10²³ per mole
[3]

Answers

Answer 1

The number of c70 molecules that can be made from one mole of carbon atoms would be 42.14 × 10²³ molecules.

Number of molecules in moles

According to standards, 1 mole of any substance contains 6.02 × 10²³ molecules of the substance.

C70 is an allotope of carbon that contains 70 atoms in a single molecule of its atom.

If 1 mole of carbon contains 6.02 × 10²³ molecules by standard, then the number of C70 molecules that can be made from 1 mole of carbon atoms would be:

6.02 × 10²³ x 7 = 42.14 × 10²³ molecules

In other words, the number of C70 molecules that can be made from one mole of carbon atom would be 42.14 × 10²³ molecules.

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Related Questions

which one of the equation pairs illustrates a favorable energetic coupling in a cell? (i.e. one reaction releases sufficient energy to drive the other to completion). select all that apply.

Answers

Equations 1 & 2, Equations 2&3, and Equations 1&3 illustrate a favorable energetic coupling in a cell.

What is the non-spontaneous reaction?
A nonspontaneous reaction is one that under the specified conditions, does not favour the formation of products. A reaction needs to be endothermic, accompanied by the a drop in entropy, or both to qualify as nonspontaneous. The majority of the gases that make up our atmosphere are a combination of nitrogen and oxygen.

If G is positive, the reaction is not spontaneous and will need external energy. The reaction seems to be spontaneous and will happen on its own if G is negative.

Coupling of reactions-
Equations 1 and 2-
∆G1=-7kcal/mol, ∆G2=-14.8kcal/mol
∆G total= -21.8kcal/mol( favourable reaction)
Equation 2&3-
∆G2=-14.8kcal/mol, ∆G3=+3.3kcal/mol
∆G total=-11.5kcal/mol(favourable)
Equations 3 and 4-
∆G3=+3.3kcal/mol, ∆G4= +7kcal/mol
∆G total=+10.3kcal/mol(unfavorable)
Equations 1 and 4-
∆G1=-7kcal/mol, ∆G4=+7kcal/mol
∆G total= 0(reaction will be in equilibrium)
Equations 1 and 3-
∆G total=(-7+3.3)kcal/mol
=-4.3 kcal/mol(favorable)

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radium-224 has a life-life of 3.66 days. what was the mass of the original sample of radium-224 if 0.0500 g remains after 7.32 days?

Answers

Answer: 0.2 g

Explanation:

What is the percent of Cu in
CuSO4?
(Cu = 63.55 g/mol, S = 32.07 g/mol,
O = 16.00 g/mol)
[?]% Cu

Answers

According to the given data percentage composition of Cu in CuSO[tex]^{4}[/tex] is 25.45%

What is meant by percent composition?

The concept of percent composition is very straightforward. By mass, the percent composition of a compound reveals the percentage of each element that is present. The combination of two or more elements results in a chemical compound.

To calculate the percentage composition of Cu in CuSO[tex]^{4}[/tex] we first need to calculate the Molecular mass of CuSO[tex]^{4}[/tex].

Given,

Cu = 63.55 g/mol

S = 32.07 g/mol

O = 16.00 g/mol

Now,

The molecular mass of CuSO[tex]^{4}[/tex] = atomic mass of Cu + atomic mass of S + 4 × atomic mass of O

= 63.5+32+4×16

= 63.5+32+64 g

= 159.5 g

Percentage composition of Cu in CuSO[tex]^{4}[/tex]

(Atomic mass of Cu / Molecular mass of CuSO[tex]^{4}[/tex]) × 100

= (63.5/159.5) × 100

= 39.81%

So, the percentage composition of Cu in CuSO[tex]^{4}[/tex] is 25.45%

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20.97 during research studies to determine the absolute stereo- chemistry of a bromohydrin, the investigators observed an unexpected skeletal rearrangement.12 provide a plausible mechanism for the forma- tion of epoxide 2 from bromohydrin 1.

Answers

The skeletal rearrangement of the forma- tion of epoxide 2 from bromohydrin 1.

Skeletal rearrangement reactions, which contain a exchange of connectivity of the substrate thru cleavage of carbon-carbon, carbon-heteroatom, and heteroatom-heteroatom bonds, have attracted plenty interest as a synthetic method of highly substituted organic.

Intermediate is a 3-membered ring (halonium ion). Halohydrin formation (specifically chlorohydrin and bromohydrin formation) is the end result of the addition of a halogen (Cl or Br--less substituted side) and a hydroxyl institution (greater substituted aspect) across an alkene.

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the citric acid cycle includes four types of primary reactions: oxidative decarboxylation, substrate-level phosphorylation, dehydrogenation, and hydration. sort the following steps of the citric acid cycle based on its reaction type. drag the appropriate reaction to their respective bins.

Answers

The first reaction in this case, the conversion of succinate to fumarate, falls under the dehydrogenation category.

The second reaction falls under the category of oxidative decarboxylation and involves the conversion of beta-ketoglutarate to succinyl-CoA.

Isocitrate's conversion to -Ketoglutarate in the third reaction falls under the category of oxidative decarboxylation.

The fourth reaction, a succinyl-CoA to succinate conversion, falls under the heading of substrate-level phosphorylation.

The fifth reaction, the transformation of L-Malate to oxaloacetate, falls under the dehydrogenation category.

The sixth reaction, the transformation of fumarate to L-malate, falls under the hydration category.

What happens during the citric acid cycle?

Redox, dehydration, hydration, and decarboxylation reactions are all included in the eight steps of the citric acid cycle. Three NADH molecules, one FADH2 molecule, and one GTP or ATP molecule are formed during each cycle turn and used later in the process of cellular respiration to create ATP for the cell.

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It is the time elapse between stimulation and the start of reaction to the stimulation.

Answers

Reaction time time elapse between stimulation and the start of reaction to the stimulation.

What is reaction with example?

A chemical reaction occurs when one or more chemicals combine to generate one or more new substances. An illustration of this is when iron plus oxygen combine to make rust. Vinegar with baking soda together result in the production of water, carbon dioxide, and sodium acetate. flammable or explosive items.

Why do chemical reactions occur?

Chemical processes occur when atoms form or break chemical bonds. Products are the chemicals that are produced as a result of a chemical reaction, whereas reagents are the ingredients that initiate one.

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because cindy's proposal is unsolicited, the (fill in the blank) approach is the best choice because it gives her a chance to prove her points and gradually overcome audience reservations.

Answers

Cindy's proposal is unsolicited, the indirect approach.

The inquiry method is characterized as a scholar-centered technique, this is, through this methodology the pupil is capable of constructing their personal way of studying. In this way, the scholar can expand hypotheses, talk with colleagues, and argue standards thru realistic experimental activities.

Inexperienced solvents are environmentally pleasant solvents, or bio solvents, which can be derived from the processing of agricultural crops. Using petrochemical solvents is the key to most people of chemical procedures but now not without intense implications on the environment.

Conceptual techniques: mastering through experience. Gaining knowledge through summary conceptualization by developing techniques and theories. Studying via lively experimentation. Learning via reflective commentary.

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a 192.0 ml solution of 0.114 m mgcl2 reacts with a 31.74 ml solution of 0.613 m naoh to produce mg(oh)2 and nacl.

Answers

The answer is 87%.

Solution:

Number of moles of MgCl2 = Volume* Molarity

nMgCl2 = 0.114*0.192= 0.021888 moles

Similarly, nNaOH = 0.02564*0.613= 0.015 moles

Now, according to the reaction, 1 mole of MgCl2 will react with 2 moles of NaOH to produce 1 mole of Mg(OH)2 and 2 moles of NaCl

Thus 0.021888  moles of MgCl2 will react with 0.021888*2 = 0.043776 moles of NaOH which is less than 0.015.

Hence NaOH will be the limiting reagent and will get totally consumed.

Now, according to the equation, 2 moles of NaOH corresponds to 1 mole of Mg(OH)2.

Thus the number of moles of Mg(OH)2 actually produced in the reaction is 0.015/2 = 0.007 moles

Mass of Mg(OH)2 that should have been produced produced = 0.007*58 = 0.406 gm

But actual mass-produced = 0.357 gm

Yield percent = (0.357*100)/0.406 = 87%

Aqueous solutions of magnesium chloride and sodium hydroxide react to form solid magnesium hydroxide and aqueous sodium chloride. This is a neutralization reaction, also called a double displacement reaction. This is a neutralization because you added the base magnesium hydroxide to the acid HCl. The products are salt and water.

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all tissues consist of two main components,. mention them

Answers

All tissues consist of two main components: cells and extracellular matrix, consisting of a gelatinous substance called ground substance and numerous different protein fibers.

identify the sugars in amygdalin.

Answers

Answer:

It consist of glucose. To be specific, it had two molecules of glucose known as benzaldehyde and hydrocyanic acid.

Explanation:

Amygdalin is a white, bitter-tasting, water-soluble, glyosidic power, C20H27NO11, usually obtained from bitter almond seeds and the leaves of plants of the genus Prunus and related genera: used chiefly in medicine as an expectorant.  

Now let's go onto the others.

Glucose is a sugar, C6H12O6, having several optically different forms, the common dextrorotatory form (dextroglucose, or -glucose) occurring in many fruits, animal tissues and fluids, etc., and having a sweetness about one half that of ordinary sugar, and the rare levorotatory from (laevoglucose, or -glucose) not naturally occurring.

The benzaldehyde molecule contains a total of 14 atom(s). There are 6 Hydrogen atom(s), 7 Carbon atom(s) and 1 Oxygen atom(s) A chemical formula of benzaldehyde can therefore be written as:C7H6O.

A solution of hydrogen cyanide in water, represented as HCN, is called hydrocyanic acid. Hydrogen cyanide is a colorless, poisonous bas, HCN, having a bitter almond like odor: in aqueous solution it forms hydrocyanic acid.

Thank you,

Eddie

Calculate the amount of energy needed to raise the temperature of 260.5 g of aluminum from 0 °C to 125 °C. The molar heat capacity of aluminum is 24.2 J/K•mol.

Answers

Taking into account the definition of calorimetry, the amount of energy needed to raise the temperature is 29,191.25 J.

Definition of calorimetry

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is defined as the amount of heat that a body absorbs or releases without changes in its physical state (phase change). In other words, when heat added or removed from a substance causes a temperature change in it without affecting its molecular structure, it is called sensible heat.

The expression that allows to calculate heat exchanges is:

Q = c× m× ΔT

where:

Q is the heat exchanged by a body of mass m.c is the specific heat substance.ΔT is the temperature variation.

Amount of energy needed

In this case, you know:

Q= ?c= 24.2 J/Kmolm= 260.5 gmolar mass= 27 g/molemoles= m÷ molar mass= 250.5 g÷ 27 g/mole= 9.65 molesΔT= Tfinal - Tinitial= 125°C - 0°C= 125°C= 125°K

Replacing in the definition of sensible heat:

Q= 24.2 J/Kmol× 9.65 moles× 125°K

Solving:

Q= 29,191.25 J

Finally, the amount of energy needed is 29,191.25 J.

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why is sulfur bigger than oxygen

Answers

Answer:

sulfur is bigger than oxygen because the number of protons that are present in oxygen is 8, while the total number of protons of sulfur is 16 this clearly states that the size of sulfur is lager because of the higher number of protons and more filled orbitals.

in order to secure reliable sources of rubber, tin, rice, scrap iron and liquid fuel, japan decided it must

Answers

In order to secure reliable sources of rubber, tin, rice, scrap iron and liquid fuel, japan decided it must both seize much of southeast asia and attack united states pacific bases in hawaii and elsewhere

When first created, natural rubber, also known as caoutchouc or India rubber, is made of polymers of the organic compound isoprene, along with water and trace amounts of other organic compounds. The top two producers of rubber are Thailand and Indonesia. Elastomers are a category for different types of polyisoprene that are used as natural rubbers. At the moment, rubber is mostly obtained from rubber trees or other sources as latex. Making incisions in the bark and collecting the fluid in vessels is a process known as "tapping," which removes the latex, a sticky, milky colloid. The rubber created from the refined latex is then ready for industrial processing. Latex is allowed to coagulate in the collection cup in major areas.

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Write "true" or "false" for each statement. A mole of horses contain a mole of horse legs.

Answers

The given statement is false, as a mole of horses contain 4 mole of horse legs.

What is the conversion factor?

The ratio of moles of molecules (or formula units) to moles of atoms can be used as a conversion factor. To create the conversion factor from this equation, write the magnitude on one side of the equal sign in the numerator of the fraction and the other magnitude on the denominator. Note that a second conversion factor can be created by interchanging the spelling of each quantity for the fraction bar. A conversion factor is an expression of the relationship between units used to change the units of a measured quantity without changing the value. The conversion factor (or unit factor) is always equal to 1, the numerator and denominator have the same value, and are expressed in different units.

Start with the number of horses in moles.

As every horse has has four legs. Use it as a conversion factor to convert the moles on the horse to the moles on the legs.

1 mol horse = 1 mol legs / 4 mol legs

1 mol horse × (4 mol legs / 1 mol legs) = 4 mol legs

4 mol legs ≠ 1 mol legs, so this is false.

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Draw the major organic product obtained by reaction of benzoyl chloride with dimethylamine, (CH3)2 NH.

Answers

The major organic product obtained by reaction of benzoyl chloride with dimethylamine, (CH3)2 NH is in the figure.

For an organic chemist, a natural product is one this is produced by a living organism. This definition encompasses many compounds already mentioned, consisting of carbohydrates, proteins, lipids, and nucleic acids, all of which play an important and primary function in metabolic reactions.

The basic organic chemistry reaction types are addition reactions, removal reactions, substitution reactions, pericyclic reactions, rearrangement reactions, photochemical reactions and redox reactions. In natural synthesis, organic reactions are used in the construction of new organic molecules.

Exceptional chemical compounds used as fuels, insecticides and herbicides, diagnostics and medical devices, vitamins, perfumes, cosmetics, fabric and all styles of excessive-technology materials utilized in televisions, computers and other facts technology, and transportation and area machines are also the products of organic synthesis.

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Calculate the molar solubility of SrF2 (Ksp = 4.3×10−9) in the following substances.

1.4×10−2 M NaF

Express the molarity to two significant figures.

Answers

The molar solubility of SrF₂ in 1.3 x 10⁻² M of NaF is = 2.544 x 10⁻⁵ M

What is molar solubility vs solubility?

The primary distinction between molar solubility and product solubility constant is that the former refers to the rate of dissolution of a substance per liter of a solution, while the latter refers to the dissolving of a solid in an aqueous solution.

We have, Ksp expression for the SrF₂ = 4.3×10⁻⁹

Ksp = [Sr²⁺] [F⁻]²

4.3 x 10⁻⁹ = (x) × (1.3 x 10⁻²)²

or, x = (4.3 x 10⁻⁹) / (1.3 x10⁻²)² M

or, x = 2.544 x 10⁻⁵ M

Molar solubility of SrF₂ in 1.3 x 10⁻² M of NaF is = 2.544 x 10⁻⁵ M.

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which of the following statements is true? responses the exact location of an electron can be determined if we know its energy. the exact location of an electron can be determined if we know its energy. ni has two unpaired electrons in its 3d orbitals. ni has two unpaired electrons in its 3 d orbitals. in the buildup of atoms, electrons occupy the 4f orbitals before the 6s orbitals. in the buildup of atoms, electrons occupy the 4 f orbitals before the 6 s orbitals. an electron in a 2s orbital can have the same n, l, and ml quantum numbers as an electron in a 3s orbital. an electron in a 2 s orbital can have the same n , l , and m l quantum numbers as an electron in a 3 s orbital. only three quantum numbers are needed to uniquely describe an electron. only three quantum numbers are needed to uniquely describe an electron.

Answers

The statements that are true are, Ni has 2 unpaired electrons in its 3d orbitals, and in the building up of atoms, electrons occupy the 4f orbitals before the 6s orbitals.

The 3d orbitals of Ni are the five orbitals of the d-subshell, which have the following shapes: 3dxy, 3dxz, 3dyz, 3dx2-y2, and 3dz2. These orbitals are able to hold a maximum of ten electrons, and Ni has eight electrons in its 3d orbitals. Of the eight electrons, two of them are unpaired.

The first unpaired electron is in the 3dxy orbital. This orbital is a degenerate orbital, which means it can hold two electrons with opposite spins. When Ni has two electrons in the 3dxy orbital, one of them will have an up spin and the other will have a down spin, meaning they can occupy the same orbital without having to repel each other.

The second unpaired electron is in the 3dx2-y2 orbital. This orbital is also a degenerate orbital, which means it can hold two electrons with opposite spins. When Ni has two electrons in the 3dx2-y2 orbital, one of them will have an up spin and the other will have a down spin, meaning they can occupy the same orbital without having to repel each other.

In the second statement 4f orbitals are filled before the 6s orbitals due to the fact that the 4f orbitals have lower energy than the 6s orbitals. This means that electrons will fill the 4f orbitals first as they are closer to the nucleus and therefore have lower energy. The 6s orbitals are further away from the nucleus and therefore have higher energy than the 4f orbitals. This means that the electrons will fill the 4f orbitals before they fill the 6s orbitals.

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a. What is metallic bonding? b. How can the strength of metallic bonding be measured?

Answers

Metallic bonding is described as a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons and positively charged metal ions.

The strength of metallic bonding can be measured via the metal's enthalpy of vaporization.

What is the enthalpy of vaporization?

The enthalpy of vaporization is described as the heat required to vaporize a material at constant pressure.

Metallic bonding is often described as an array of positive ions in a sea of electrons in which the metal is held together by the strong forces of attraction between the delocalized electrons and the positive ions.

The properties of metals that are a consequence of metallic bonding include:

Malleability.Ductility.High melting and boiling point.High electrical and thermal conductivity.Metallic lustre.

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helium and hydrogen gas are at an unknown ambient temperature, x. given this information, fill in the blanks below. simplify your answers whenever possible. write any numbers with three significant figures

Answers

Hydrogen and helium are the lightest elements in the periodic table.

What is helium and hydrogen made of?Hydrogen and helium are uniformly mixed and form a layer on the surface of gas giants. Scientists predicted in the 1970s that the two lightest elements might separate and form a region of demixing or immiscibility at the high temperatures and pressures found inside gas giants. They are the two most prevalent elements in the universe and are gases at room temperature, with hydrogen constituting roughly 75% of all matter. A helium atom consists of a nucleus with two neutrons and two positively charged protons, which is surrounded by two negatively charged electrons in orbit. One proton and one electron make up one hydrogen atom.

translational = 3

rotational = 2

vibrational = 1

Total = 6

Internal energy = 6N  x 1 /2 k T where N is no of molecules

E₁ = 3 N kT

At the temperature of 1000K , helium  will have following degree of freedom

translational = 3

rotational = 0

vibrational =  0

Total = 3

Internal energy = 3N  x 1 /2 k T where N is no of molecules

E₂ = 3 / 2 N kT

Ratio =  E₁ / E₂

=  2

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If a liquid is sealed in a container, kept at a constant temperature, how does vapor pressure change over time?.

Answers

If a liquid is sealed in a container and kept at constant temperature, how does its vapor pressure change over time?

a. It continues to steadily increase.

b. It increases at first, then remains constant.

c. It increases at first, then decreases.

d. It continues to steadily decrease.

Answer

The vapor pressure of the container sealed with liquid will increase first and then it will remain constant when kept at constant temperature.

Explanation

The vapor pressure in the container containing liquid will increase at first then remain constant. This trend of vapor pressure follows because pressure and vapor is generated by heat. Since the heat container is constant as it is kept at a constant temperature the pressure changes accordingly to the temperature and will remain there unless it is released.

Hence, the vapor pressure of the container containing liquid which is kept at constant temperature increases and remain constant.

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how is the HFusion used to calculate the mass of solid that 1kJ of energy will melt?

Answers

The equation to use Hfusion to calculate the energy needed to melt a mass of solid is Grams solid × mol/g × H fusion

what is Hfusion?

The heat of fusion is the amount of heat required to turn 1 g of solid into a liquid without causing a change in temperature.

1Kg×1/H fusion ×g/mol solid

Numerous everyday household products have been produced using the heat of fusion technique, which has numerous other uses. Melting ice into water is the most typical application of the heat of fusion. Manufacturing is where you'll find the great majority of instances of heat of fusion in use. The following examples have been in use for many centuries and are still refined today. Heat of fusion is a necessary step in the production of things such as coins, glass, forged metal, and household goods made from blow-molded plastic.

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Help me solve all of these and please provide all work

Answers

13.929484 g is the mass in  grams of calcium hydroxide will be needed to react completely with 18.52 grams of sulfuric acid.

What is sulfuric acid?

Sulfuric acid, also known as sulphuric acid or oil of vitriol in the past, is a mineral acid made up of the elements hydrogen, oxygen, and sulfur with the chemical formula H2SO4. It is a viscous liquid that is miscible with water. It has no color or smell.

Ca(OH)2+H2SO4→2H2O + CaSO4

1 mol Ca(OH)2 react with 1 mol H2SO4

molar mass of Ca(OH)2 =74.093 g/mol

molar mass of  H2SO4=98.079 g/mol

⇒mol of H2SO4 in 18.52 grams=

⇒ 18.52/98.079 =0.188 mol H2SO4

So, 0.188 mol H2SO4

molar mass Ca(OH)2 =74.093 g/mol

Mass of  0.188 mol H2SO4= 0.188*74.093 g/mol=13.929484 g

13.929484 g is the mass in  grams of calcium hydroxide will be needed to react completely with 18.52 grams of sulfuric acid.

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Draw a Lewis structure for SiF5- and answer the following questions based on your drawing.
1. For the central silicon atom:
... The number of lone pairs =
The number of single bonds =
The number of double bonds =
2. The central silicon atom ____
... A. Obeys the octet rule
B. Has an incomplete octet.
C. Has an expanded octet.

Answers

The Lewis structure of SiF₅ shows that there are 5 single bonds in the compound with no double bonds and the central silicon atom expands the octet since it is bonded with 9 electrons.

What is silicon Penta fluoride?

Silicon penta fluoride SiF₅ is a covalent compound formed by the sharing of electrons between silicon and fluorine. Silicon is 14th element and it have 4 valence electrons. Thus, it need 4 more electrons to attain octet.

Fluorine is 17th element  containing 7 valence electrons. Thus it needs 1 electron to attain octet. Each F shares their one valence electrons with silicon and Si thus exceeds octet by receiving 9 electrons. All the 5 bonds are single bonds.

The one extra pair of electron make the charge on the central atom. Thus the compound does not obey octet rule.

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the action potential of a neuron is initiated by an influx of na is terminated by influx of k declines in amplitude as it moves along the axon results in a transient reversal of the concentration gradient of na across the membrane is not associated with any movement of the na or k across the cell membrane

Answers

The membrane is not associated with any movement of the na or k across the cell membrane Because the concentration of Na+ is higher outside the cell than inside the cell by a factor of 10.

4A.

Initiated by Influx od Na+

When a nerve is stimulated, Na ions enter in to the axon increasing the positive ions inside the axon. This causes reversal of the potential across the membrane. This is called depolarization which travels alsong the length of the neuron. Such a potential difference carried is called action potential. So, it all srats with influx of Na ions.

4B.

Cells of Macula densa are located in the afferent arteriole.

The above is not the right statement. Macula densa are the modified epithelial cells present in the walls of the distal convoluted tubule. It is not present in the walls of the afferent arteriole. Macula densa is sensitive to Na ion concentration. Low Na ions stimulate the juxta glomerulus to release Reinn which increases the blood pressure in blood vessels.

4C.

It represents the driving pressure for blood flow.

Normal blood pressure is 120/80 mm Hg. Where 120 is systolic pressure and 80 is diastolic pressure. The mean arterial pressure indicates the over all blood flow int he cardiac cycle so that the amount of nutrients reaching a tissue can be estimated. It is the average blood pressure in the cardiac cycle in an individual.

4 D

Arteriole diameter.

When the diameter of arteriole increases, there is more blood flowing in to capillaries with force. Because of increased pressure in arterioles, the capillary blood pressure will also increase. Decrease in colloidal osmotic pressure will decrease blood pressure. Interstitial cell albumin levles will not affect the blood pressure in blood vessels. Less arteriole resistance, blood pressure will reduce.

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enthalpy of neutralization to be the most similar to that of sodium hydroxide with hydrochloric acid

Answers

Acids include hydrochloric acid (HCl) and bases include sodium hydroxide (NaOH). As a result, when they combine, they have a neutralization reaction that produces water and sodium chloride.

What happens in neutralization?

The pH rises to about 7 as a result of neutralization, which happens when a base and a base combine. It is a useful technique that is applied in daily life, for example when lime is added to acid soils to treat and relieve indigestion. Furthermore, neutralization results in an alkali's pH dropping to about seven.

Why does neutralization take place?

Taking a base balances out our stomach's excess acid. Due to the formic acid in the ant sting, it can be painful. Using wet baking soda, which really is basic in nature, we can counteract this acid impact and lessen the agony brought on by the sting.

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2) Ionic bonding is expected in which of these compounds?
A) [tex]\mathrm{Cl}_2[/tex]
B) [tex]\mathrm{KF}[/tex]
C) [tex]\mathrm{OF}_2[/tex]
D) [tex]\mathrm{HF}[/tex]
E) [tex]\mathrm{H}_2[/tex]

Answers

Ionic bonding is expected in KF because in it one is metal and one is non-metal which is essential to form an ionic bond.

What is Ionic bonding?

Ionic bonding is a kind of chemical bonding that includes the electrostatic attraction among oppositely charged ions, or among two atoms with sharply different electronegativities, and is the number one interplay taking place in ionic compounds. It is one of the primary styles of bonding alongside with covalent bonding and metal bonding. Ions are atoms (or organizations of atoms) with an electrostatic charge. Atoms that advantage electrons make negatively charged ions (called anions). Atoms that lose electrons make undoubtedly charged ions (called cations). This switch of electrons is thought as electrovalence in assessment to covalence.

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why does a animal cell make it a animal cell under a microscope???

Answers

Well, animal cells are unique. Like human cells, animal cells serve as the building blocks for the Animalia kingdom along with the organisms within it. Animal cells absorb nutrients and provide energy, form a structure for the organism, and generally help an animal function correctly and move. They can replicate themselves as they contain all the hereditary material of a living organism. But overall, a animal cell is a type of cell known as a eukaryotic cell in which it lacks a actual cell wall along with a genuine, membrane-bound nucleus that consists of other cellular organelles too.

The animal cell consists of the nucleus, cell membrane, mitochondria and cytoplasm -- these 4 cell components can also be found in plant cells.

More information:

Well, “animal cells” are legitimately cells from an animal.  They are cells that belong to the same class as "animals," but each one of them may be unique and serve a distinct purpose. The absence of a cell wall and chloroplasts makes them easily distinguishable from plant cells.

animal cell is a really big range of cells, so I’m going to share a few common ones here:

(1) Stem cells are crucial cells that can develop into many types of cells in the human body. They are located in the umbilical cord, where stem cells begin to differentiate into many types of cells with various roles in the developing baby' body.

(2) Red blood cells are a unique class of cells that lack a nucleus, making them targets for the spleen's destruction and breakdown into iron and bile pigments. It has hemoglobin, which binds to oxygen to create oxyhemoglobin, which then carries oxygen to every cell in the body.

(3) White blood cells: These immune system-supporting cells work to protect the body when foreign antigens are ingested. Phagocytes and lymphocytes are the two primary subgroups of white blood cells. While lymphocytes create antibodies and interact with other immune cells, phagocytes primarily ingest foreign particles through a process known as phagocytosis.

(4) Muscle cells are, of all, what allow animals to move about. They contract and relax with the bones to let the bodily component to move. Given that a body is made up of several muscle cells, this truly covers a large spectrum of cells.

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consider the enthalpy of formation for c3h8(g) a. write the balanced chemical equation describing the heat of formation of c3h8(g).

Answers

The enthalpy of formation for C₃H₈ is -394,286 kJ/mol.

Definition of enthalpy of formation

Enthalpy of formation also known as the heat of formation and also called standard heat of formation, enthalpy of formation, or standard enthalpy of formation is the amount of heat absorbed or evolved when one mole of a compound is formed from its constituent elements and each substance being in its normal physical state (gas, liquid, or solid).

The balanced chemical equation describing the heat of formation of C₃H₈.

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

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how many atomic orbitals are needed to form one bonding molecular orbital and one anti-bonding molecular orbital? explain. the bonding of three incorrect: your answer is incorrect. atomic orbital(s) on two correct: your answer is correct. different atom(s) will give rise to one bonding molecular orbital and one anti-bonding molecular orbital

Answers

There are two molecular orbitals are needed to form one bonding molecular orbital and one anti-bonding molecular orbital.

Bond orbitals Electrons that spend most of their time between the nuclei of two atoms are placed in bonding orbitals, and electrons that spend most of their time outside the nuclei of two atoms are placed in anti-bonding orbitals.

Adding up the same number of atomic orbitals gives the same number of molecular orbitals. Two atomic orbitals combine to form two molecular orbitals. An anti-bonding orbital is essentially the opposite of a bonding orbital. They form when atomic orbitals combine in ways that lead to almost destructive interference.

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For which electrode could you use an inactive material? A.Zn B.both C.neither D.Co

Answers

Neither zinc(Zn) nor cobalt(Co) can be used as an inactive material. Both Zn and Co are active elements and they actively take part in the reactions.

What is electrode?

Electrodes are defined as conductors that are used to make electrical contact with a non-metallic part of the circuit. Electrodes are of two types - reactive electrodes and inert electrodes

Reactive electrodes- These are the electrodes which take part in the reaction and can dissolve in the electrolyte. Examples are copper electrode, zinc electrode.

Inert electrodes - These electrodes do not take part in the reaction. Examples are carbon electrode etc.

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