compared to gypsum, elemental sulfur is sometimes considered a more desirable s fertilizer material because ?

The form of energy from the sun can be transformed into the energy needed for a tree to grow is light to chemical energy.

Energy transformation is a process in which one form of energy is transfered into another form without any loss of energy.

Sun provides solar energy to the earth surface and that will be used by plants and trees for the production of food to grow. So that plants will convert the solar energy means light energy into chemical energy for their use.

Hence conversion of light energy to chemical energy takes place.

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Using sulphur oxidizing bacteria and bio trickling filters, the mercury from CFL lights can be removed. With these two techniques, we can remove 99% of the mercury from CFL bulbs. However, this procedure is quite expensive in comparison to the thermal method for mercury extraction.

The chemical element mercury has the atomic number 80 and the symbol Hg. In the past, it was known as hydrargyrum, a compound of the Greek terms hydor and argyros, and quicksilver.

Invisible ultraviolet (UV) light is produced by mercury and argon gases inside CFLs when power is applied. The white, visible light you see when you turn on a CFL is created when this UV light interacts with the fluorescent coating.

Mercury is present in a number of different light bulbs. These light sources include high-pressure sodium lamps, straight fluorescent tubes, and compact fluorescent lamps.

Thus, this procedure is quite expensive in comparison to the thermal method for mercury extraction.

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Answer:

This option is correct

Explanation:

Molecules are expressed in the form of Lewis in order to simplify their expression or chemical study, but this does not mean that they manifest or respect this form in all three dimensions since some are generally unstable, or even in the third dimension, these locations between atoms are respected for the characteristics of their unions.

The half-life of a reaction can be calculated using the Arrhenius equation and the rate constant. The Arrhenius equation relates the rate constant (k) to the activation energy (Ea) and temperature (T).

The equation is:

k = A * e^(-Ea/RT)

where k is the rate constant, A is the Arrhenius factor, Ea is the activation energy, R is the gas constant, and T is the temperature in Kelvin.

To find the half-life at 50°C, we need to calculate the new rate constant at that temperature using the given activation energy.

First, let's convert the activation energy to joules/mol:

85 kJ/mol * 1000 J/kJ = 85,000 J/mol

Next, let's convert the temperatures to Kelvin:

30°C + 273.15 = 303.15 K
50°C + 273.15 = 323.15 K

Now, we can use the Arrhenius equation to calculate the rate constant at 50°C:

8 x 10^(-3) s^(-1) = A * e^(-85,000 J/mol / (8.314 J/(mol*K) * 303.15 K))

Simplifying the equation, we can solve for A:

A = 8 x 10^(-3) s^(-1) / e^(-85,000 J/mol / (8.314 J/(mol*K) * 303.15 K))

Now that we have the Arrhenius factor, we can calculate the rate constant at 50°C.

Next, we can use the rate constant at 50°C to find the half-life. The half-life (t1/2) is the time it takes for the concentration of the reactant to decrease by half. For a first-order reaction, the half-life is given by the equation:

t1/2 = ln(2) / k

where ln(2) is the natural logarithm of 2.

Now we can calculate the half-life using the rate constant at 50°C.

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Answer:

The volume of solution in liters required to make a 0.250 M solution from 3.52 moles of solute is 14.08 liters of solution

Explanation:

The question relates to the definition of the concentration of a solution which is the number of moles per liter (1 liter = 1 dm³) of solution

Therefore we have;

The concentration of the intended solution = 0.250 M

Therefore, the number of moles per liter of the required resolution = 0.250 moles

Therefore, the concentration of the required solution = 0.250 moles/liter

The volume in liters of the required solution that will have 3.52 moles of the solute is given as follows;

The required volume of solution = The number of moles of the solute/(The concentration of the solution)

∴ The required volume of solution = 3.52 moles/(0.250 moles/liter) = 14.08 liters

The required volume of solution to make a 0.250 M solution from 3.52 moles of solute = 14.08 liters.

Therefore the number of liters required to make a 0.250 M solution from 3.52 moles of solute = 14.08 liters.

Answer:

Iodine

Explanation:

Hope this helps. Think about me, when giving out brainiest.

In this case, the given volume is 25.0 L, and the density is 0.791 g/ml. Multiplying the two together, we get 19,775 grams as the total mass of the sample. This is the amount of mass present in the 25.0 L sample of alcohol with a density of 0.791 g/ml.

The mass of a 25.0 L sample of alcohol with a density of 0.791 g/ml is 19,775 grams. This can be calculated by multiplying the sample volume by the density:
25.0 L * 0.791 g/ml = 19,775 g

To explain further, density is defined as mass per unit volume. In this case, the mass per unit volume is 0.791 g/ml, which means for every milliliter of alcohol, 0.791 grams of mass is present. To find the total mass, the volume needs to be multiplied by this density value. This can be done using the formula:
mass = volume * density

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8.94 moles of silicon dioxide would produce 17.88 moles of water.

The balanced chemical equation for the reaction of silicon dioxide (SiO2) with water (H2O) is as follows:

\(SiO^2 + 2H^2O - > H^4SiO^4\)

The balancing equation shows that 2 moles of water (H2O) are created for every 1 mole of silicon dioxide. As a result, we can use the mole ratio to determine how many moles of water are created when 8.94 moles of \(SiO^2\) react:

Moles of water = \(2 * Moles of SiO^2\)

Moles of water = 2 * 8.94 moles

Moles of water = 17.88 moles

Therefore, 8.94 moles of silicon dioxide would produce 17.88 moles of water.

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The ideal solution is one in which the interactions between the molecules of the components are similar in nature and strength. To form an ideal solution, their intermolecular forces should be comparable.

The pair of liquids that would form the most ideal solution is option (B):\(CH_3CH_2OH(I)\) and \(H_2O\).

In options (B), \(CH_3CH_2OH(I)\) (ethanol), and \(H_2O\) (water), both liquids are polar molecules and can form hydrogen bonds. Ethanol has a hydroxyl group (-OH) that can participate in hydrogen bonding, similar to water. This similarity in intermolecular forces allows for strong interactions between the molecules of ethanol and water, making them miscible in all proportions. They can mix well and form a homogeneous solution.

In options (A), (C), and (D), the liquids involved have different chemical structures and therefore different types and strengths of intermolecular forces. \(C_3H_8\) (propane) and \(C_8H_18\) (octane) are nonpolar molecules and do not have the ability to form hydrogen bonds. Thus, they would not form ideal solutions with polar molecules like \(H_2O\).

In option (E), \(HNO_3\) (nitric acid) and \(H_2O\) are both polar molecules that can form hydrogen bonds. However, nitric acid is a strong acid and can dissociate in water to form ions, leading to a solution that is not an ideal solution.

In conclusion, option (B), \(CH_3CH_2OH(I)\) and \(H_2O\), would form the most ideal solution due to the similarity in intermolecular forces between the two liquids.

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The name of binary ionic cpd composed of the lithium cation and the chlorine anion is called Lithium chloride (LiCl). In Chemistry, the lithium chloride is an ionic compound consisting of lithium and chlorine.

It has a white or colourless solid structure in the form of a crystal. The lithium chloride formula is LiCl. It is a compound that is highly soluble in water and its solutions conduct electricity. Lithium chloride is used as a desiccant, a flux for welding and soldering, and a starting material in the synthesis of various other lithium compounds.

It is also used as an important reagent in organic synthesis. It is also useful in the production of ceramics and in the manufacture of lithium-ion batteries. In conclusion, the name of the binary ionic cpd consisting of the lithium cation and chlorine anion is Lithium chloride (LiCl).

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Answer:10

Explanation:

Multiply the volume by the density to get the mass.

Divide the mass by the molar mass to get the number of moles.

Answer:

Magnetic domains fall into alignment and it begins to attract other objects.

Answer:

0.00580 →

3000 →

0.000908 →

200. →

Explanation:

yay

Answer:

\(\large \boxed{\mathrm{view \ explanation}}\)

Explanation:

4.060 × 10⁵ (scientific notation)

The decimal point moves 5 places to the right.

⇒ 406000 (standard form)

7 × 10³ (scientific notation)

The decimal point moves 3 units to the right.

⇒ 700 (standard form)

5.0 × 10⁻⁴ (scientific notation)

The decimal point moves 4 units to the left.

⇒ 0.0005 (standard form)

8 × 10⁻² (scientific notation)

The decimal point moves 2 units to the left.

0.08 (standard form)

Answer:There are 1.51 × 1024 atoms

Explanation:

It is needed 1498.25 g of SiO2.

- From the chemical equation, we know that to produce 40.10 g of SiC, it is needed 60.08 g of SiO2 and 36.033 g of C (because in the reaction there are 3 moles of C).

- Calculating we obtain that:

So, it is needed 1498.25 g of SiO2. This can be expressed as 1.50x10^3 g.

Answer:

The value of n in the final state of the electron is approximately 6.96.

Explanation:

To determine the value of n in the final state of the electron after acquiring an additional 1.23eV of energy, we can use the formula for the energy levels of hydrogen:

E = -13.6 eV/n^2

First, let's calculate the initial energy of the electron in the n=3 state:

E_initial = -13.6 eV / (3^2)

= -13.6 eV / 9

= -1.511 eV

Next, we add the additional energy of 1.23 eV to the initial energy:

E_final = E_initial + 1.23 eV

= -1.511 eV + 1.23 eV

= -0.281 eV

Now, we can rearrange the energy formula and solve for n in the final state:

E_final = -13.6 eV/n^2-0.281 eV

= -13.6 eV/n^2

Dividing both sides by -13.6 eV:0.0206618 = 1/n^2

Now, we solve for n^2:

n^2 = 1/0.0206618

n^2 ≈ 48.38

Taking the square root of both sides:n ≈ √48.38

n ≈ 6.96

Therefore, the value of n in the final state of the electron is approximately 6.96.

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Answer:

true

Explanation:

The work done on the gas mixture is 297KJ.

W = -Pext(Vf-Vi)

P = 61.0 atm

Vi = 99.0 L

Vf = 51.0 L

put values in above expression

W = -Pext(Vf-Vi)

W = -61.0atm (51.0L - 99.0L)

W = 2928 atm.L

W = 2928 *101.33 J

W = 296694 J

W = 296.7 KJ

W = 297 KJ

In physics, work is the energy transferred to or from an item through the application of pressure alongside displacement. In its most effective form, for a consistent pressure aligned with the route of motion, it equals the manufactured from the force strength and the space traveled.

Work modifications the quantity of mechanical and internal energy possessed by gadgets. Whole work is achieved on a machine or item, energy is introduced to it.

The character of the work achieved can be categorized into three classes. they are +ve work, -ve work, and zero work. The character of work relies upon the perspective of pressure and displacement.

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The total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.

To calculate the total charge that flows while the battery is being charged, we can use the relationship between electrical energy, potential difference, and charge.

The electrical energy (E) stored in the battery is given as 64 mega Jules (64 MJ). The potential difference (V) provided by the battery is 330 volts. We know that the energy (E) is equal to the product of the potential difference (V) and the charge (Q):

E = V * Q

Since the charging process is 100% efficient, all the electrical energy supplied is stored in the battery. Therefore, we can rearrange the equation to solve for the charge (Q):

Q = E / V

Substituting the given values, we have:

Q = 64 MJ / 330 V

To perform the calculation, we need to convert mega Jules (MJ) to joules (J) since the SI unit of energy is joules. One mega Joule is equal to 1 million joules:

Q = (64 * 10^6 J) / 330 V

Calculating the division:

Q ≈ 193,939.39 Coulombs

Therefore, the total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.

This value represents the quantity of electric charge transferred during the charging process, and it indicates the amount of electricity that enters the battery.

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Answer:

About 1.48 M.

Explanation:

The formula for molarity is mol/L.

So firstly, you must find the amount of moles in 250 grams of NaCl.

I do this by using stoichiometry. First, I find how nany grams are in a single mole of NaCl. This is around 58.44 grams/mole. Now that I know this, I can now use a stoich table. (250 g NaCl * 1 mol NaCl / 58.44 g NaCl). I plug this into my calculator.

I get that 250 grams of NaCl is equal to about 4.28 moles.

Now I just plug into the formula!

4.28 moles/2.9 L = about 1.48

I've attached a picture of my personal notes below which shows work I have done in similar equations.

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

The cell potential of the Zn/Zn2+//Cu2+/Cu cell is +1.10 V.

What is cell potential?
Just two examples as to how chemical reactions generate power through the movement of electrons are the batteries throughout your remote control and the engine throughout your car. The voltage that exists between a battery's two half cells can be measured using the cell potential. We will describe how to do this and what elements make it possible for us to determine the voltage that is present inside an electrochemical cell. The potential difference between the two half cells inside an electrochemical cell is measured by the cell potential, or Ecell. The ability of electron density to move from one half cell to another is what determines the potential difference. Due to the fact that the chemical reaction is just a redox reaction, electrons can move between the electrodes.

The half reactions for the Zn/Zn2+//Cu2+/Cu cell are:
Oxidation: Zn → Zn2+ + 2e-
Reduction: Cu2+ + 2e- → Cu

The overall reaction is:
Zn + Cu2+ → Zn2+ + Cu

The cell potential can be calculated from the standard reduction potentials of the two half reactions:
Ecell = Ereduction - Eoxidation
Ecell = (Ereduction for Cu2+ + 2e- → Cu) - (Eoxidation for Zn → Zn2+ + 2e-)
Ecell = + 0.34 V - (-0.76 V)
Ecell = + 1.10 V
This means that the cell potential of the Zn/Zn2+//Cu2+/Cu cell is +1.10 V.

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Answer:

Step 1) weathering of pre-existing rocks

Step 2) transport of the weathering products

Step 3) deposition of the material

Step 4) compaction of the sediments

Step 5) cementation of the sediment to form a rock.

Explanation: ^^^

Answer: The number of neutron electron and proton in the nuclide \(_{18}^{40}\textrm {Ar}\) is 22, 18 and 18.

Explanation:

Atomic number is equal to the number of protons or number of electrons for a neutral species and is specific to a particular element.

Mass number is the sum of number of protons and the number of neutrons.

Here the atomic number of Argon is 18 , thus the number of protons is 18 and thus the number of electrons is also 18.

The given mass number is 40. Thus number of neutrons = (40 - 18) = 22.

The number of neutron electron and proton in the nuclide \(_{18}^{40}\textrm {Ar}\) is 22, 18 and 18.