I think this is gonna be 2050 for memers

One benefit of someone using nuclear energy is that it operates with more reliability. Is Because they require minimal maintenance, nuclear power facilities are built to run continuously.

Fission, the breaking of uranium, is the source of nuclear energy. As a result, heat is produced, which then turns water into steam and powers a turbine generator. Since nuclear power plants don't burn fuel, they don't produce greenhouse emissions.

Nuclear energy seems to be the term used to describe the force contained in the center, or core, of an atom. Nuclear energy may be used to generate electricity, but it must first be liberated from the atom.

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Actual mass of CO recovered is 99.4g

Balance equation is : SiO2 + 3C    SiC + 2CO

Molar mass of CO is 28.01 g/mol

Moles of CO = given mass/molecular mass = 100/28.1 = 3.55mol

mass = moles of sio2 x molecular mass

Actual mass = 3.55mol of CO x 28 = 99.4g

The amount of matter that makes up an element's atom, or atomic mass. It is expressed as a multiple of 1.992646547 1023 gram, which is equal to one-twelfth of the mass of the carbon-12 atom, which has an atomic mass of 12 units. 1 atomic mass unit (amu) is equal to 1.660539040 1024 grams on this scale. An indicator of an element's atomic mass is the atomic mass unit (AMU or amu). The atomic mass unit (AMU), also called the dalton (Da) or the unified atomic mass unit (u), expresses both atomic and molecular masses. Only 1/1,836 the mass of a proton, 9.1093837015 1031 kg, is the rest mass of an electron. Therefore, compared to a proton or neutron, an electron is thought to be almost massless, and the electron mass

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Answer:

18 electrons

Explanation:

Each electron carry a -1 charge.

Since Oxygen atom originally has 16 electrons (same no. as no. of protons, where net charge as 0), it must add 2 electrons to bring the net charge to -2. Hence, the number of electrons in this ion is 16 + 2 = 18.

Tributaries meets river at a confluence.

The heat released in each reaction is:

Reaction 1: 3700J

Reaction 2: 3200J

What is heat?

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Answer:

In a solution, the solute particles that are in the solvent are evenly mixed and so small that you can't see them. In a suspension, the pieces of solute are large and can be seen floating throughout the solvent. For example, dust floating through the air is a suspension.

Answer:

B

Explanation:

Two quick google searches later I grace you with the google has bestowed upon me

The empirical formula for limonene is C5H8, which represents the simplest whole-number ratio of carbon to hydrogen atoms in the compound. This information can be useful in determining the properties and behavior of limonene in various chemical reactions and applications.

Limonene is a hydrocarbon compound found in the essential oils of citrus fruits. It is a common ingredient in many household and personal care products, and is often used as a flavoring agent in food and beverages. The empirical formula for limonene is a representation of its molecular composition in terms of its simplest whole-number ratio of atoms.

To determine the empirical formula for limonene, we first need to know its molecular formula. The molecular formula for limonene is C10H16, meaning it contains 10 carbon atoms and 16 hydrogen atoms.

The next step is to find the simplest whole-number ratio of carbon to hydrogen atoms in the compound. This can be done by dividing both the carbon and hydrogen atoms by their greatest common factor, which is 2 in this case. Dividing by 2 gives us a ratio of C5H8, which is the empirical formula for limonene.

The empirical formula for limonene, C5H8, tells us the simplest whole-number ratio of carbon to hydrogen atoms in the compound, but it does not provide any information about the arrangement of atoms in the molecule. To understand the molecular structure of limonene, we would need to determine its molecular geometry and bonding arrangement through more advanced chemical analysis techniques.

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Answer:

A not

B yes

C yes

D yes

Explanation:

A 2C 6H but 10O and 7O so no

B 3C 6O 2Fe on each side  so yes

C 4H 1S 6O 2Na so yes

D 2Ag 2Cl 1Ca 2N 6O so yes

Both reactions are the examples of reversible reaction and the reaction moves both forward and backward direction.

In the first equation, hydrogen monoxide molecule is broken down into  water and oxygen molecule. These two molecules again converted into hydrogen monoxide due to reversible reaction and gets equilibrium.

While on the other hand, in the second equation, oxygen molecule turns into ozone molecule and this ozone molecule again converted into oxygen molecule due to reversible reaction and attains equilibrium.

So we can conclude that both reactions are the examples of reversible reaction and the reaction moves both forward and backward direction.

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Answer:

0.618 moles ZnCl2

Explanation:

Divide the 84.23 g by the total grams in one mole. You can find how many grams in 1 mole (molar mass) by adding the average atomic masses of the compound. For ZnCl2 65.39+35.45+35.45 = 136.29 g/mol. Then divide that by the grams you have.

According to the mole concept, there are 0.618 moles in 84.23 g of zinc chloride.

Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.

It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.

It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons. Molar mass has units of gram per mole . In case of molecules, where molar mass  in grams present in one mole  of atoms is its atomic mass.

Number of moles is calculated as mass/molar mass on substitution in formula, number of moles =84.23/136.28=0.618 moles.

Thus, there are 0.618 moles in 84.23 g  of zinc chloride.

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Answer:

Because  they convert the electrical voltage produced by increasing and then it goes into the power lines

Explanation:

The main purpose of the transformers is to convert high electrical voltage to low voltage. The transformers transfer the electrical energy into power lines.

A transformer can be described as a passive component that transfers electrical energy from one electrical circuit to another circuit or multiple circuits. A varying current produces a varying magnetic flux in the transformer's core, which induces an electromotive force (EMF) across other coils wound around the same core.

When the electricity is generated in the power plant, it has to travel large distances from the stations for supply. The high voltage transmission is more efficient as it allows transmitting a larger part of the generated power.

From the power stations, first, the current is passed through the step-up transformer, then at the high voltage, the current reaches the substations, where the current is traveled through the step-down transformer where the voltage is decreased to an amount of 220V.

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The correct answer is the amount of sodium chloride needed to make this eye solution isotonic with tears is approximately 1.85 grams. Rounding it up to the nearest whole number gives us the answer as 2. Hence, the correct option is 22.

The given solution is a hypotonic solution as the solution's tonicity is lower than that of the tears. The tears contain 0.9% w/v of NaCl, which is isotonic with tears. So, to make the given solution isotonic, the amount of sodium chloride needs to be added.

The concentration of NaCl in tears is 0.9% w/v. Additional Information: We know that % w/v is the amount of solute present in grams per 100 ml of the solution. Therefore, 0.9% w/v means 0.9 grams of NaCl is present in 100 mL of tears.

To make 30 ml of isotonic solution, we can use the following formula: Equivalent weight of NaCl = 58.5/2 = 29.25 (as NaCl ionizes to give Na+ and Cl- ions)Moles of NaCl required to make 30 ml isotonic solution = 0.9 × 30 / 1000 = 0.027Moles of Na+ and Cl- ions present in 30 mL of isotonic solution = 2 × 0.027 = 0.054

A number of grams of NaCl needed to prepare 30 mL of isotonic solution is calculated as follows:0.054 g = (0.027 x 29.25 x X) / 1000Where X is the amount of NaCl required to make 30 mL isotonic solution. Solving this equation gives us: X = 1.85 g (approx). Therefore, the amount of sodium chloride needed to make this eye solution isotonic with tears is approximately 1.85 grams. Rounding it up to the nearest whole number gives us the answer as 2. Hence, the correct option is 22.

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The mole fraction of NH3 in the solution prepared by dissolving 15.0 g of nh3 in 250.0 g of water is 0.0597.

To find the mole fraction of NH3 in the solution, we need to first calculate the moles of NH3 and water in the solution.

The moles of NH3 can be found by dividing the mass of NH3 by its molar mass:
moles of NH3 = 15.0 g / 17.03 g/mol = 0.881 mol

The moles of water can be found by dividing the mass of water by its molar mass:
moles of water = 250.0 g / 18.02 g/mol = 13.874 mol

The total moles of solute and solvent in the solution are:
total moles = moles of NH3 + moles of water = 0.881 mol + 13.874 mol = 14.755 mol

The mole fraction of NH3 can now be calculated as the ratio of moles of NH3 to total moles:
mole fraction of NH3 = moles of NH3 / total moles = 0.881 mol / 14.755 mol = 0.0597

Therefore, the mole fraction of NH3 in the solution is 0.0597.

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The  possible ml values for orbitals At l = 3, ml =+3,+2,+1,0,-1,-2,-3

Quantum numbers are used to describe where a specific electron can be found within a nucleus. Each electron in an atom has one of four quantum numbers. The letters N, L, M 1, and M S A set of rules determines the range of possible values for each number.

Quantum number totals differ between systems and are not consistent. As a result, these parameters must be identified for each system under consideration. A quantized system must contain at least one quantum number. The dynamics or time evolution of any quantum system is described by a quantum operator known as a Hamiltonian, or H.

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An equation which follow the law of conservation of mass is called the balanced equation. The coefficient of copper (II) nitrate is 1 .The correct option is C.

A chemical equation in which the number of atoms of reactants and products on both sides of the equation are equal is defined as the balanced chemical equation.

The coefficients are the numbers which are used to balance the chemical equation. They are added in front of the formulas. According to law of conservation of matter, mass can neither be formed nor be destroyed.

The balanced equation for the given reaction is:

Cu (s) + 2AgNO₃ (aq) → Cu (NO₃)₂ (aq) + 2Ag (s)

Here the coefficient of Cu (NO₃)₂ is 1. The number of 'Cu', 'Ag', 'N' and 'O' atoms are equal. So the given equation is balanced. The coefficient of AgNO₃ is 2, and 'Ag' is 2.

Thus the correct option is C.

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Answer:

formula for fermentation is: C6H12O6 → 2 C2H5OH + 2 CO.

I agree with Layla. A mechanical mixture can have both solids and liquids in it. An example of this is a suspension. A suspension is a heterogeneous mixture in which the solid particles are not dissolved in the liquid, but rather suspended throughout it. The solid particles will eventually settle out of the suspension over time, but for a short period of time, they will remain suspended throughout the liquid.

Here are some other examples of mechanical mixtures that have both solids and liquids in them:

Kris is incorrect in saying that a mechanical mixture has to be all solids or all liquids. A mechanical mixture can be any combination of solids, liquids, and gases.

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Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$

Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$

The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.

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A) Water molecules causing temperatures to fluctuate is not a property due to hydrogen bonding. The other three options (b, c, and d) are special properties of water due to hydrogen bonding.

Water has all of the following characteristics EXCEPT: A good solvent, it is. Because of its hydrogen bonding, it has a high surface tension: lt can withstand a lot of heat:  It possesses adhesive and cohesion qualities. This molecule is nonpolar.

A material trait that could be identified by a reaction technique is generally referred to as a chemical feature or property in scientific terms. This describes how well a substance can change into something wholly different.

Because freshwater has a significant specific temperature factor due to the presence of hydrogen connections as well as considerable interatomic interactions, water particles do not cause temperature swings. Water can survive changes in temperature because of hydrophobic interactions.

The answer is a) Temperature fluctuations are caused by water molecules.

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Answer:

14.53

Explanation:

V1= 218ML

V2= ?

P2= 15P1

USING BOYLE'S LAW

P1V1= P2V2

V2= P1V1/P2

V2 = P1(218ML)/15P1 = 14.53ML

Answer:

. Density is an intensive property, meaning that it does not depend on the amount of material present in the sample

Explanation:

In chemistry there are two kind of property that exist are Intensive property and extensive property. Density is an intensive property as it is independent of amount of matter.

Intensive property is a property that tells about the dependence of a property on Quantity of a matter over which study has been done.

Mass and volume are extensive property, these depend on the quantity of substances. Whenever two extensive property are divided then the final answer is always intensive So, density is division of mass of volume. Hence Density is an intensive property.

Example of Intensive property are specific gravity, heat capacity, melting point and boiling point . Examples of extensive property are weight and internal energy.

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It is important to ensure that the probe is inserted into the thickest part of the meat for an accurate reading of the internal temperature.

To check the internal temperature of a beef roast, you should use a Type K thermocouple probe. This type of thermocouple is made from nickel-chromium and nickel-alumel materials, providing accurate and reliable temperature measurements. It's suitable for a wide range of temperatures, including the typical cooking range for beef roasts.

To use it, insert the probe into the thickest part of the roast, ensuring it doesn't touch any bones, to get an accurate reading of the internal temperature. To check the internal temperature of a beef roast, a type K thermocouple probe is recommended. This type of probe is suitable for measuring high temperatures and can be inserted directly into the meat for an accurate reading.

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If excess ammonium sulfate reacts with 20.0g of calcium hydroxide then liters of ammonia are produced at STP 0.081L

Ammonium sulphate is the organic solvent and the primary use of ammonium sulphate is as a fertilizer for alkaline soils

Here given reaction is

(NH₄)₂SO₄ + Ca(OH)₂ → CaSO₄ + NH₃ + H₂O

Here given data is

Calcium hydroxide  = 20.0g

We have to find liters of ammonia are produced at STP =?

20.0g of (NH₄)₂SO₄ STP = ?

Then 20.0g of (NH₄)₂SO₄×1 mol/132g×0.54L/1 mol = 0.081L

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The law of energy conservation states that the energy cannot be created nor be destroyed but it can be transformed from one form to the other. This energy transformation restores the energy lost in form from the other form.

Similar to the  mass conservation energy conservation law states the same thing that, energy can neither be created not be destroyed. However it can be transformed from one form to the other.

In laboratories, many types of chemical reactions are synthesis are conducting where we can site the energy transformation. For instance, Some reaction need heat energy to take place. Where, the heat lost from the surroundings is converted into the chemical energy and restored in the system.

Similarly, we use calorimetric techniques to determine the enthalpy of reaction where we use energy conservation concept. The heat lost from the hot body is gained by the colder body and not lost to the surroundings. Thus heat gained and lost will be equal.

Therefore, energy cannot be destroyed or created but it can be generated in new form by transformation and restored by transfer.

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Answer:

Sulfur

Explanation:

I'm sorry I was too late!

If there is an excess of a substance in a reaction, then there is more than enough to complete the reaction. This means that, because we have a specific amount of sulfur, it has to be the limiting reagent.

The molecule that absorbs the energy of a photon in photosynthesis is chlorophyll.

Option C is correct.

Chlorophyll is a pigment found in the chloroplasts of plant cells and is responsible for capturing light energy from the Sun. When chlorophyll molecules absorb photons, they undergo a process called photoexcitation, in which the energy from the absorbed photons is used to drive the initial steps of photosynthesis.

This energy is ultimately converted into chemical energy and stored in molecules such as ATP (adenosine triphosphate) and glucose. However, ATP, glucose, and water do not directly absorb the energy of photons in photosynthesis.

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Answer:

a. Oxidising agent: Cl₂

b. Reducing agent: NaBr

c. Oxidised: NaBr

d. Reduced: Cl₂

e. Oxidation numbers before reaction: Cl= 0, Na= +1, Br= -1

f. Oxidation numbers after reaction: Cl= -1, Na= +1, Br= 0

Explanation:

Oxidising agents reduces themselves, oxidising other elements/compounds.

Reducing agents oxidise themselves, reducing other elements/compounds.

Oxidation is the loss of electrons or an increase in oxidation number.

Reduction is the gain of electrons or decrease in oxidation number.

Answer:

i. If the area is doubled keeping the force constant, then pressure will be halved.

ii. If force is doubled keeping area constant, then pressure will also be doubled.

I hope that my answer helped you!!

-From Nepal