In which circuit is there more than one path on which electrons can flow?
a) A simple circuit
b) A parrel circuit
c) A series circuit
d) A complex circuit

Answer:

Why does the Moon have phases?

At the new Moon phase, the Moon is so close to the Sun in the sky that none of the side facing Earth is illuminated (position 1 in illustration). In other words, the Moon is between Earth and Sun. At first quarter, the half-lit Moon is highest in the sky at sunset, then sets about six hours later (3). At full Moon, the Moon is behind Earth in space with respect to the Sun. As the Sun sets, the Moon rises with the side that faces Earth fully exposed to sunlight (5).

At the new Moon phase, the Moon is so close to the Sun in the sky that none of the side facing Earth is illuminated (position 1 in illustration). In other words, the Moon is between Earth and Sun. At first quarter, the half-lit Moon is highest in the sky at sunset, then sets about six hours later (3). At full Moon, the Moon is behind Earth in space with respect to the Sun. As the Sun sets, the Moon rises with the side that faces Earth fully exposed to sunlight (5).

The Moon has phases because it orbits Earth, which causes the portion we see illuminated to change. The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days. The Moon spends the extra 2.2 days "catching up" because Earth travels about 45 million miles around the Sun during the time the Moon completes one orbit around Earth.

At the new Moon phase, the Moon is so close to the Sun in the sky that none of the side facing Earth is illuminated (position 1 in illustration). In other words, the Moon is between Earth and Sun. At first quarter, the half-lit Moon is highest in the sky at sunset, then sets about six hours later (3). At full Moon, the Moon is behind Earth in space with respect to the Sun. As the Sun sets, the Moon rises with the side that faces Earth fully exposed to sunlight (5).

You can create a mockup of the relationship between Sun, Earth, and Moon using a bright lamp, a basketball, and a baseball. Mark a spot on the basketball, which represents you as an observer on Earth, then play with various alignments of Earth and Moon in the light of your imaginary Sun.

When is the Harvest Moon?

The full Moon that occurs closest to the autumnal equinox is commonly referred to as the "Harvest Moon," since its bright presence in the night sky allows farmers to work longer into the fall night, reaping the rewards of their spring and summer labors. Because the equinox always falls in late September, it is generally a full Moon in September which is given this name, although in some years the full Moon of early October earns the "harvest" designation.

Why do we always see the same side of the Moon from Earth?

The Moon always shows us the same face because Earth's gravity has slowed down the Moon's rotational speed. The Moon takes as much time to rotate once on its axis as it takes to complete one orbit of Earth. (Both are about 27.3 Earth days.) In other words, the Moon rotates enough each day to compensate for the angle it sweeps out in its orbit around Earth.

Gravitational forces between Earth and the Moon drain the pair of their rotational energy. We see the effect of the Moon in the ocean tides. Likewise, Earth's gravity creates a detectable bulge -- a 60-foot land tide -- on the Moon. Eons from now, the same sides of Earth and Moon may forever face each other, as if dancing hand in hand, though the Sun may balloon into a red giant, destroying Earth and the Moon, before this happens.

When does the young Moon first become visible in the evening sky?

There is no real formula for determining the visibility of the young Moon. It depends on several factors: the angle of the ecliptic (the Moon's path across the sky) with respect to the horizon, the clarity of the sky (how much dust and pollution gunks it up), and even the keenness of the observer's eyesight.

The young Moon becomes visible to the unaided eye much earlier at times when the ecliptic is perpendicular to the horizon, and the Moon pops straight up into the sky. In these cases, it may be possible to see the Moon as little as 24 hours after it was new, although every hour beyond that greatly increases the chances of spotting it. When the ecliptic is at a low angle to the horizon, and the Moon moves almost parallel to the horizon as it rises, the Moon probably doesn't become visible until at least 36 hours past new.

The record for the earliest claimed sighting of the young crescent Moon is around 19 hours, although most experts are suspicious of any claims of times less than about 24 hours.

Explanation:

Answer:

Covalent bonds are the strongest bonds in nature and under normal biological conditions have to be broken with the help of enzymes. This is due to the even sharing of electrons between the bonded atoms and as with anything equally shared there is no conflict to weaken the arrangement.

Explanation:

Bonding electrons are described as electrons that participate in chemical bonds. Chemical bond, a strong attraction between atoms, ions, or molecules, might be the subject here. Atoms sharing electron pairs form a covalent or molecular connection. An attraction between the atomic orbitals of atoms in a molecule is called a bonding molecular orbital.

Which bonding type results in stronger bonds? What is your evidence?

A covalent bond is created when the difference between two atoms' electronegativities is too small for an electron transfer to occur and produce ions. Bonding electrons are collectively referred to as the electrons that are present between the two nuclei. The "glue" that binds the atoms into molecular structures is the bound pair.

It is the most powerful link. By sharing an electron, the two atoms in such a bond are joined together.

One Hydrogen atom with one valence electron and one Chlorine atom with seven valence electrons, for instance, make up the HCL molecule. In this instance, hydrogen and chlorine share an electron to create a single bond.

To know more about Electron bonding, click on the link below:

https://brainly.com/question/12732708

#SPJ1

Answer:

A

Explanation:

Hopefully this helps

Answer:

A copy of DNA is made from existing DNA.

Explanation:

Just did the quiz

Brainly is erroneously blocking my answer from being posted due to nonexistent profanity and/or links, so I have attached an image of my written response. Please let me know if you have any problems seeing it.

Answer:

1) 234,0 g 2) 7,5 3) 0,5

Explanation:

1) Since the stoichiometric coefficients of carbon and methane are equal, the moles of carbon needed are the same as the moles of methane produced. Therefore the mass of carbon needed can be calculated as follows

\(m = 19.5 \times 12 = 234.0\)

2)This exercise is comparable to the former one. Since the stoichiometric coefficients are the same, the moles of methane procured and the moles of the carbon needed are the same.

The molar mass of methane is 12 + 1 × 4 = 16

\(n_{C} = \frac{119.4 g}{16} =7.5\)

3) In this case, the stoichiometric coefficients are not equal. In order to produce 1 mole of nitrogen, 3 moles of CuO (copper (II) oxide) are needed. Therefore, the number of moles of CuO consumed must be divided by 3 in order to get the moles of nitrogen produced.

Molar mass of CuO = 63,5 + 16 = 79.5

\(n_CuO = \frac{127,4 g}{79,5} = 1,6 mol \\ n_{N2} = \frac{1,6}{3} = 0,5 mol\)

Answer:

\(d.blood\)

Explanation:

Hope it helps!!!

Answer:

(1) Acid -------------------------------------> (G) When dissolved in water, its solution has a pH value less than 7. Acids are proton (H⁺ ion) donors.

(2) Alkali -----------------------------------> (E) The oxide, hydroxide, or carbonate of a metal that will react with an acid, forming a salt as one of the products (if a base dissolves in water it is called an alkali. Bases are proton (H⁺ ion) acceptors.

(3) Base ------------------------------------> (I) Its solution has a pH value of more than 7.

(4) Blast furnace ------------------------> (C) The huge reaction vessels used in industry to extract iron from its ore.

(5) Displacement reaction ----------> (R) A reaction in which a more reactive element takes the place of a less reactive element in one of its compounds or in solution.

(6) Mole -----------------------------------> (A) A very large number that is the amount of substance in the relative atomic or formula mass of a substance.

(7) Neutral -------------------------------> (J) A solution with a pH value of 7 which is neither acidic nor alkaline. Alternatively, something that carries no overall charge.

(8) Neutralization ----------------------> (F) The chemical reaction of an acid with a base in which a salt and water are formed. If the base is a carbonate of hydrogen carbonate, carbon dioxide is also produced in the reaction.

(9) Ore -------------------------------------> (P) Ore is rock which contains enough metal to make it economically worthwhile to extract the metal.

(10) Oxidation --------------------------> (B) A reaction where oxygen is added to a substance / or when electrons are lost from a substance.

(11) pH -------------------------------------> (O) A number which shows how strongly acidic or alkaline a solution is.

(12) Pipette ------------------------------> (N) A glass tube used to measure accurate volumes of liquids.

(13) Precipitate -------------------------> (K) An insoluble solid formed by a reaction taking place in solution.

(14) Reactant ---------------------------> (M) A substance we start with before a chemical reaction takes place.

(15) Reduction -------------------------> (S) A reaction in which oxygen is removed or electrons are gained.

(16) Salt ----------------------------------> (Q) A salt is a compound formed when some or all of the hydrogen in an acid is replaced by a metal.

(17) Strong acids ---------------------> (L) These acids completely ionize in solution and have a high concentration of H⁺ (aq) ions in solution.

(18) Universal indicator ------------> (H) A mixture of indicators that can change through a range of colors to show how strongly acidic or alkaline liquids and solutions are.

(19) Weak acids ---------------------->  (D) Acids that do not ionize completely in aqueous solutions.

The given statement "Ethanol molecules are held together by covalent bonds, while water molecules are held together by hydrogen bonds" is True because Covalent bonds are formed when atoms share electrons to achieve a stable electron configuration.

In the case of ethanol, the carbon (C) atom shares electrons with the hydrogen (H) atoms and the oxygen (O) atom, forming covalent bonds within the molecule. These covalent bonds hold the atoms together in a stable structure.

On the other hand, hydrogen bonds are a specific type of intermolecular force that occurs between molecules. In water, the hydrogen atoms within each water molecule are bonded to the oxygen atom through covalent bonds. However, the positively charged hydrogen atom in one water molecule is attracted to the negatively charged oxygen atom in a neighboring water molecule.

This attraction forms a hydrogen bond between the two water molecules, creating a network of hydrogen bonds in liquid water. So, in summary, ethanol molecules are held together by covalent bonds within the molecule, while water molecules are held together by hydrogen bonds between the molecules.

You can learn more about Ethanol at: brainly.com/question/29294678

#SPJ11

There are 3.61 x 10¹⁰ atoms are contained in 5.99 x 10⁻¹⁴ moles of glucose (C₆H₁₂O₆), the correct answer is (d) 3.61 x 10¹⁰

The number of atoms contained in 5.99 x 10⁻¹⁴moles of glucose (C₆H₁₂O₆) can be calculated by multiplying the number of moles by Avogadro's number (6.02 x 10²³ atoms/mole). The formula for this calculation is:

Number of atoms = Number of moles x Avogadro's number

Plugging in the given values, we get:

Number of atoms = 5.99 x 10⁻¹⁴ moles x 6.02 x 10²³ atoms/mole

Number of atoms =3.61 x 10¹⁰ atoms

Therefore, the correct answer is (d) 3.61 x 10¹⁰

Learn more about Avogadro's number:

brainly.com/question/26141731

#SPJ11

In the solution water is solute and ethanol is solvent.

Binary solution

A mixture of two liquids that are completely miscible one with another is known as a Binary solution. The boiling point of binary solution depends upon the composition of the solution.

A binary solution consists of a solute and a solvent.

The solute is usually present in smaller quantity and solvent is in larger quantity.

If a solution has 70 ml ( larger quantity ) of ethanol , it means ethanol is the solvent .

water with 30 ml of quantity ( smaller quantity ) will be the solute.

So , in the mixture, water is the solute.

Learn more about Binary solution from the link given below.

https://brainly.com/question/3953670

#SPJ4

Answer:$$7.50 x 10^23$$

$$H_2SO_4$$?

Explanation:It is a fact that such a quantity has a mass of  

98.08

⋅

g

. Why? Because  

6.022

×

10

23

particles SPECIFIES a molar quantity. And we know (or can calculate) that sulfuric acid has a molar mass of  

98.08

⋅

g

...  

The portion of energy from the Sun that reaches the Earth​ is known as

electromagnetic spectrum.

Energy transfer from objects in space such as the Sun usually reach the

earth through the process known as radiation. The energy is referred to as

electromagnetic energy.

Components of the electromagnetic spectrum are:

Read more about Electromagnetic spectrum here on https://brainly.com/question/13803241

The knowledge of periodic table would be important in these three different careers such as medicine, pharmacology and engineering.

Periodic table is organised the whole elements vertically in groups and horizontally in periods with increasing atomic number.

The knowledge of arrangement of these elements serves alot of purposes in the following three different careers:

Therefore, the knowledge of periodic table is very important in these three different careers such as medicine, pharmacology and engineering.

Learn more about period table here:

https://brainly.com/question/15987580

Answer:

it is the measure of the extent of reduction in a chemical substance

The only elements that make up organic compounds are in option A. Carbon, hydrogen, oxygen, and nitrogen.

Organic compounds are compounds that primarily consist of carbon and hydrogen atoms. However, organic compounds can also contain other elements such as oxygen and nitrogen, which are commonly found in biological molecules. Carbon forms the backbone of organic compounds, providing the structural framework, while hydrogen is frequently bonded to carbon. Oxygen and nitrogen are also essential elements in organic compounds, participating in various functional groups and forming bonds with carbon and hydrogen.

Therefore, option A (Carbon, hydrogen, oxygen, and nitrogen) is the correct choice as it includes the elements that are predominantly found in organic compounds.

Learn more about organic compounds here:

https://brainly.com/question/13508986

#SPJ 2

False. During the current COVID-19 outbreak, brands in the United States have largely reduced or altered their event sponsorships.

The respiratory symptoms that COVID-19 most frequently produces can resemble those of a cold, the flu, or pneumonia. More than just your lungs and respiratory system could be affected by COVID-19. The condition may also affect other areas of your body. The majority of COVID-19 sufferers have minor symptoms, while a small number develop serious illness.

The majority of virus-infected individuals will experience mild to severe respiratory disease and will recover without the need for special care.

Learn more about the COVID-19 outbreak here:

https://brainly.com/question/29643338

#SPJ4

3906.114 grams of CaCO₃ is required to completely react with 1250 grams of SO₂.

Scrubbing mechanism is a method of removing pollutants, such as sulfur dioxide (SO₂), from industrial exhaust gases. In this mechanism, a substance, such as limestone or lime, is added to the exhaust gases, which react with the pollutants to form solid waste products that can be easily removed.

The balanced chemical equation for the reaction of SO₂ gas and CaCO₃ is:

SO₂ + CaCO₃ → CaSO₃ + CO₂

From the equation, we can see that one mole of SO₂ reacts with one mole of CaCO₃. Therefore, we need to first determine the number of moles of SO₂ in 1250 g of SO₂:

molar mass of SO₂ = 32.066 g/mol

moles of SO₂ = mass of SO₂ / molar mass of SO₂

moles of SO₂ = 1250 g / 32.066 g/mol

moles of SO₂ = 39.012 mol

Since one mole of SO₂ reacts with one mole of CaCO₃, we need 39.012 moles of CaCO₃ to react with the 39.012 moles of SO₂. The molar mass of CaCO₃ is 100.086 g/mol, so we can calculate the mass of CaCO₃ needed as:

mass of CaCO₃ = moles of CaCO3₃ × molar mass of CaCO₃

mass of CaCO₃ = 39.012 mol × 100.086 g/mol

mass of CaCO₃ = 3906.114 g

Therefore, we need 3906.114 grams of CaCO₃ to completely react with 1250 grams of SO₂.

To know more about scrubbing mechanism, click here

https://brainly.com/question/30207790

#SPJ1

In a phospholipid molecule, the charged organic molecule that usually binds is choline or the amino acid serine.

Choline is a hydrophilic (water-loving) molecule that contains a positively charged quaternary ammonium group. It forms an electrostatic interaction with the negatively charged phosphate group on the phospholipid molecule. This interaction helps to stabilize the overall structure of the phospholipid bilayer, as choline is attracted to the polar, hydrophilic head region of the phospholipid.

Similarly, the amino acid serine can also bind to the phospholipid molecule. Serine is a hydrophilic molecule that contains a hydroxyl group. This hydroxyl group can form hydrogen bonds with the phosphate group on the phospholipid, aiding in the stabilization of the phospholipid bilayer.

These interactions between the charged organic molecules, such as choline or serine, and the phospholipid molecule are crucial for the formation and stability of cell membranes. The phospholipid bilayer is the basic structural component of cell membranes, providing a selectively permeable barrier that separates the internal cellular environment from the external surroundings. The binding of choline or serine to the phospholipid molecule helps to maintain the integrity and functionality of the cell membrane.

To know more about Choline, refer to the link below:

https://brainly.com/question/32244356#

#SPJ11

In a phospholipid molecule, the charged organic molecule that usually binds is choline or the amino acid serine.

Choline is a hydrophilic (water-loving) molecule that contains a positively charged quaternary ammonium group. It forms an electrostatic interaction with the negatively charged phosphate group on the phospholipid molecule. This interaction helps to stabilize the overall structure of the phospholipid bilayer, as choline is attracted to the polar, hydrophilic head region of the phospholipid.

Similarly, the amino acid serine can also bind to the phospholipid molecule. Serine is a hydrophilic molecule that contains a hydroxyl group. This hydroxyl group can form hydrogen bonds with the phosphate group on the phospholipid, aiding in the stabilization of the phospholipid bilayer.

These interactions between the charged organic molecules, such as choline or serine, and the phospholipid molecule are crucial for the formation and stability of cell membranes. The phospholipid bilayer is the basic structural component of cell membranes, providing a selectively permeable barrier that separates the internal cellular environment from the external surroundings. The binding of choline or serine to the phospholipid molecule helps to maintain the integrity and functionality of the cell membrane.

To know more about Choline, refer to the link below:

brainly.com/question/32244356#

#SPJ11

The change in entropy is calculated as 27.5 J/(mol K). The change in entropy ΔS can be calculated using the formula: ΔS = ΔH / T

ΔH is the heat of vaporization, T is the temperature at which the substance is boiling, and ΔS is the change in entropy.
207 g / (92.14 g/mol) = 2.246 mol
Next, we need to convert the boiling point of toluene from Celsius to Kelvin:
1 110.6°C + 273.15 = 1383.75 K
Now, we can use the formula to calculate ΔS:
ΔS = 38.1 kJ/mol / 1383.75 K
ΔS = 0.0275 kJ/(mol K)
Finally, we need to convert the units of ΔS to J/(mol K) and round to 3 significant digits: ΔS = 27.5 J/(mol K)

Therefore, the change in entropy ΔS when 207. g of toluene boils at 1 110.6°C is 27.5 J/(mol K).

To know more about entropy, refer

https://brainly.com/question/6364271

#SPJ11

A table comparing the important parameters of the two engine designs is shown below:ParametersDesign 1Design 2Compression Ratio 18:118:1Φ (Equivalence Ratio)0.75 (Richer)0.65 (Leaner)EGR Level 10%15%Intake Temperature 80°C100°C Intake Pressure 1 bar0.5 bar Intake Valve Closing −15 deg BTDC−25 deg BTDC.

The compression ratio is the ratio of the volume of the combustion chamber from its largest capacity to its smallest capacity. The compression ratio in Design 1 is 18:1, while in Design 2, it is 18:1. The higher compression ratio is seen in Design 1, which will lead to a higher engine efficiency since more fuel energy is converted into useful work.

The Φ (equivalence ratio) is the ratio of the actual air/fuel ratio to the stoichiometric air/fuel ratio. A Φ value of 1.0 indicates a stoichiometric mixture, whereas values less than 1.0 indicate a lean mixture and values greater than 1.0 indicate a rich mixture. The Equivalence ratio in Design 1 is 0.75, which means it is running rich, while in Design 2, it is 0.65, which means it is running lean.

The design 2 engine has a higher Φ (equivalence ratio) level, which may lead to lower NOx emissions due to lean-burn combustion.The EGR (Exhaust Gas Recirculation) level in Design 1 is 10%, whereas in Design 2, it is 15%. The EGR level in Design 2 is higher than that in Design 1, which can help to reduce NOx emissions by lowering the temperature of combustion.

Intake temperature is 80°C in Design 1, whereas in Design 2, it is 100°C. The higher intake temperature in Design 2 means that the engine will have a higher thermal efficiency due to the increased Carnot efficiency.Intake pressure is 1 bar in Design 1, while in Design 2, it is 0.5 bar. The higher intake pressure in Design 1 results in more air being compressed into the combustion chamber, allowing for more fuel to be burned and greater efficiency.

Intake Valve Closing (IVC) is −15 deg BTDC in Design 1 and −25 deg BTDC in Design 2. The IVC timing is responsible for trapping the charge in the combustion chamber and influencing the engine's breathing. The lower IVC timing in Design 2 provides less resistance to flow, resulting in greater volumetric efficiency.

Learn more about equivalence ratio here,

https://brainly.com/question/1706633

#SPJ11

The Law of Definite Composition states that in any particular chemical compound, the elements are always present in the same proportion by mass.

Content-loaded clouds of Jupiter are mainly composed of ammonia (NH₃), which is formed by the synthesis reaction between hydrogen (H₂) and nitrogen (N₂). This reaction is an excellent example of the law of definite composition.

Ammonia is formed by the combination of nitrogen and hydrogen in a synthesis reaction. The reaction produces a compound with a unique formula and mass. The law of definite composition states that in any particular chemical compound, the elements are always present in the same proportion by mass.

This means that ammonia, NH₃, will always have one nitrogen atom for every three hydrogen atoms, regardless of the source of the compound.

The clouds of Jupiter, therefore, are composed mainly of ammonia because this is the compound that is produced by the reaction of hydrogen and nitrogen gases present in those clouds. This chemical reaction also demonstrates the importance of the laws of thermodynamics, as it is driven by the release of energy.

To know more about Law of Definite Composition click on below link:

https://brainly.com/question/5561968#

#SPJ11

1) Chemical formula

2) Mg Lewis structure

3) O2 Lewis structure

4) MgO Lewis structure

5) Chemical formula written as Lewis dot structure

.

2 moles of ammonia and 2.5 moles of oxygen gas will produce 2 moles of nitric oxide and 3 moles of water.

The reaction between ammonia (NH3) and oxygen gas (O2) to produce nitric oxide (NO) and water (H2O) is shown below:4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)The balanced equation shows that 4 moles of ammonia react with 5 moles of oxygen gas to produce 4 moles of nitric oxide and 6 moles of water. To determine the amount of products formed when a certain amount of reactants is used, we need to use stoichiometry.Suppose we react 2 moles of ammonia with 2.5 moles of oxygen gas. From the balanced equation, we can see that the ratio of moles of ammonia to moles of oxygen gas is 4:5. Therefore, ammonia is the limiting reagent because only 2 moles of ammonia are available, which is not enough to react with 2.5 moles of oxygen gas.To determine the amount of products formed, we will use the mole ratio from the balanced equation:4 moles NH3 : 5 moles O2 : 4 moles NO : 6 moles H2O2 moles NH3 is equivalent to (5/4) × 2 moles O2 = 2.5 moles O2So, 2 moles NH3 + 2.5 moles O2 → 2 moles NO + 3 moles H2O.The number of significant digits in the answer will depend on the number of significant digits in the given amounts of reactants.

for more such questions on moles

https://brainly.com/question/29367909

#SPJ8

For E3.2 the total number of energy states in silicon between E and E + kt at T = 300 K (E1 = -5.0 eV, E2 = 0.1 eV) would be `2.048 x 10¹⁸ cm⁻³` and for E3.3 the total number of energy states in silicon between E and E - T at T = 300 K (E1 = 1.03 eV, E2 = 1.01 eV) would be `1.998 x 10¹⁸ cm⁻³`.

PART-1 For E3.2,

The total number of energy states in silicon between E and E + kt at T = 300 K (E1 = -5.0 eV, E2 = 0.1 eV) is required to be calculated.

The expression that gives the total number of energy states in a band of a semiconductor is given by;

$$N = 2 \frac{(2\pi m^{*} kT)^{3/2}}{h^3} * ln(1 + \frac{gV}{2(2\pi m^{*}kT)^{3/2}})$$

Where, N = total number of energy states in a band

m* = effective mass of the electron

k = Boltzmann’s constant

T = temperature

h = Planck’s constant

gV = degeneracy of a band

By substituting the given values of E1, E2, and T in the above expression we get;

$$\begin{aligned}N &= 2 \frac{(2\pi m^{*} kT)^{3/2}}{h^3} * ln(1 + \frac{gV}{2(2\pi m^{*}kT)^{3/2}}) \\&

= 2 \frac{(2\pi m^{*} (1.38 \times 10^{-23}) (300))^{3/2}}{(6.626 \times 10^{-34})^3} * ln(1 + \frac{2}{2(2\pi m^{*}(1.38 \times 10^{-23})(300))^{3/2}}) \\&= 2.048 \times 10^{18} cm^{-3} \end{aligned}$$

Therefore, the total number of energy states in silicon between E1 and E2 + kt at T = 300 K is `2.048 x 10¹⁸ cm⁻³`.

PART-2For E3.3,

The total number of energy states in silicon between E and E - T at T = 300 K (E1 = 1.03 eV, E2 = 1.01 eV) is required to be calculated.

Using the above expression, we get;

$$\begin{aligned}N &= 2 \frac{(2\pi m^{*} kT)^{3/2}}{h^3} * ln(1 + \frac{gV}{2(2\pi m^{*}kT)^{3/2}}) \\&

= 2 \frac{(2\pi m^{*} (1.38 \times 10^{-23}) (300))^{3/2}}{(6.626 \times 10^{-34})^3} * ln(1 + \frac{2}{2(2\pi m^{*}(1.38 \times 10^{-23})(300))^{3/2}}) \\&

= 1.998 \times 10^{18} cm^{-3} \end{aligned}$$

Therefore, the total number of energy states in silicon between E1 and E2 - T at T = 300 K is `1.998 x 10¹⁸ cm⁻³`.

To learn more about Boltzmann constant:

https://brainly.com/question/31599204

#SPJ11

Answer: C

Explanation:

There are 761.4 grams of CS2 in 10.00 mol.

To calculate the amount of grams present in a given amount of moles, the molar mass of the substance must be used, as follows:

                                        \(m = MM \times mol\)

In this way, just perform the following operation:

                                          \(m = 76.14 \times 10\)

                                         \(m = 761.4 grams\)

Thus, there are 761.4 grams of CS2 in 10 mol of the substance.

Learn more about mole calculation in: brainly.com/question/15693285

Answer:

The test for carbon dioxide uses an aqueous solution if calcium hydroxide which is lime water.And when carbon dioxide is bubbled through it , the colourless lime water turns milky or chalky

The balanced chemical equation for the given reaction is given as,

2AgNO₃(aq) + NiCl₂(aq) → 2AgCl(s) + Ni(NO₃)₂(aq)

For writing a balanced chemical equation for the reaction between aqueous silver nitrate and aqueous nickel(II) chloride to produce solid silver chloride and aqueous nickel(II) nitrate

First, we have to write the chemical formula for the each of the reactants and products is,

Silver nitrate - AgNO₃

Nickel(II) chloride - NiCl₂

Silver chloride - AgCl

Nickel(II) nitrate - Ni(NO₃)₂

The balanced chemical equation for the reaction is given as,

2AgNO₃(aq) + NiCl₂(aq) → 2AgCl(s) + Ni(NO₃)₂(aq)

Hence, the balanced chemical equation for the reaction is

2AgNO₃(aq) + NiCl₂(aq) → 2AgCl(s) + Ni(NO₃)₂(aq)

Learn more about balanced chemical reaction from the link given below.

https://brainly.com/question/28013881

#SPJ4

Elastic modulus is a measure of a material’s ability to resist deformation under an applied load.

Here, correct answer will be

Generally, materials with higher elastic modulus are stiffer and stronger than those with a lower elastic modulus. The two most common materials with high elastic modulus are steel and carbon fiber composites.

Steel has an elastic modulus of approximately 200 GPa, and carbon fiber composites can range up to around 450 GPa. As a result, steel and carbon fiber composites are often used in applications where strength and stiffness are important.

For example, steel is commonly used in structural applications such as bridges and buildings, while carbon fiber composites are used in aircraft, sailing boats, and automotive parts. In comparison, other materials such as aluminum and plastics have a much lower elastic modulus, making them more suitable for applications where high strength and stiffness are not required.

Know more about Elastic modulus here

https://brainly.com/question/30402322#

#SPJ11

Criteria for a presentation refer to the factors that determine its effectiveness and impact on the audience. One example of such criteria is whether the address meets the assignment's purpose. This means that the presentation should fulfill the objectives set by the instructor or the audience. For instance, if the presentation is meant to inform the audience about a new product, the criteria for success would be whether the audience has understood the features and benefits of the product.

Another criterion for a successful presentation is whether the organizational structure works well with the topic. This means that the presenter should have a clear and logical outline of the main points and sub-points. The presentation should flow smoothly from one point to another, and the audience should be able to follow along without confusion.
Finally, using anecdotes to connect with the audience is also a criterion for a successful presentation. Anecdotes are personal stories or experiences that the presenter shares to illustrate a point or create a connection with the audience. Anecdotes help to humanize the presentation and make it more memorable and relatable to the audience.

In summary, there are several criteria for a successful presentation, including meeting the assignment's purpose, having a clear organizational structure, being appropriate for the intended listeners, and using anecdotes to connect with the audience.

To know more about Criteria  visit:-

https://brainly.com/question/29652439

#SPJ11

Presentation criteria include checking address appropriateness, evaluating organizational structure, ensuring usage of anecdotes, and verifying assignment purpose fulfillment. The presentation should exhibit an understanding of the intended purpose, audience awareness, trustability, clarity of language, and correct use of citations.

The question pertains to the criteria for presentation. Examples of these criteria include checking if the address is appropriate for the intended listeners, evaluating the organizational structure's compatibility with the topic, determining if the speaker used anecdotes to connect with the audience, and verifying that the address meets the assignment's purpose. An ideal presentation should demonstrate a comprehensive understanding of the purpose, the awareness of the audience, context, and community expectations, and an objective and trustworthy voice from the speaker. It should also use clear, appropriate language and contain correct citations.

https://brainly.com/question/32417469

#SPJ12

Glycinate donates an electron pair so it is a bidentate ligand.

The molecular formula is C₂H₄NO₂⁻. The octahedral complex is formed between glycinate molecules and cobalt(III) and the stoichiometry of the complex is [Co(gly)₃]. The reaction is as follows;

Co₃⁺(aq) + 3C₂H₄NO₂⁻ ⇒ [Co(C₂H₄NO₂⁻](aq)

A cobalt complex is formed when 3 glycinate ions equivalents react with one Co₃⁺ ion equivalent so, it is necessary to keep the glycinate ions concentration greater than the cobalt(III) ions at least three times more.

So, taking the concentration 4 times greater can facilitate the reaction.

For a complex whose concentration is 0.015M, 0.06M glycinate ions are required to obtain the desired cobalt(III) glycinate complex.

You can learn more about glycinate complex from the following answer;

https://brainly.com/question/28285145

#SPJ4