Water (H 2 O) is made of

The current passing through the electrolytic cell is approximately 2.02 x 10^4 Amperes.

To calculate the current in amperes, we need to use Faraday's laws of electrolysis and the stoichiometry of the reaction.

Faraday's laws state that the amount of substance produced or consumed during electrolysis is directly proportional to the quantity of electricity passed through the cell. The relationship is given by:

Q = nF

Where Q is the electric charge in coulombs (C), n is the number of moles of substance involved in the reaction, and F is Faraday's constant, which is equal to 96,485 C/mol.

In this case, the substance being produced is Cl2, and we know the mass of Cl2 produced, which is 4.8 x 10^5 g.

First, we need to calculate the number of moles of Cl2 produced:

Molar mass of Cl2 = 35.45 g/mol

Moles of Cl2 = mass / molar mass = (4.8 x 10^5 g) / (35.45 g/mol) ≈ 1.354 x 10^4 mol

Now we can calculate the quantity of electricity passed through the cell using Faraday's laws:

Q = nF

Q = (\(1.354 x 10^4\)mol) * (96,485 C/mol)

Q ≈ 1.308 x 10^9 C

The quantity of electricity is given in coulombs. To find the current, we need to divide this value by the time in seconds.

Given that the time is 18 hours, we convert it to seconds:

Time = 18 hours * 60 minutes/hour * 60 seconds/minute

Time = 6.48 x 10^4 seconds

Finally, we can calculate the current:

Current (I) = Q / Time

I = (1.308 x 10^9 C) / (6.48 x 10^4 s)

I ≈ 2.02 x 10^4 Amperes

Therefore, the current passing through the electrolytic cell is approximately 2.02 x 10^4 Amperes.

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Answer:

Two positive aspects of using methane recapture systems are able to generate significant electricity. Another benefit is that the process of anaerobic digestion creates heat that can be used to warm buildings where animals are kept

Answer:  The correct answer is;

Two positive aspects of using methane recapture systems include lowering the impact on greenhouse gasses and the production of energy. Methane is a very potent greenhouse gas that is contributing to global warming. As a result, the recapturing process reduces the methane impacts of global warming by reclaiming and reusing the gas for other purposes. Recaptured methane can be stored and used to generate electricity or used as fuel to power updated vehicles and other engines on the farm. The overall benefits from this combination are reducing impacts causing global warming and lower the cost of electricity or fuel on the farm.

Explanation:  This answer has been confirmed correct.

Answer:

conservation of mass

Answer:

1.45 x 10²³ particles

Explanation:

Given parameters:

Number of moles of carbon  = 0.24moles

Unknown:

Number of particles = ?

Solution:

A mole of a substance contains the Avogadro's number of particles.

 The Avogadro's number of particles is 6.02 x 10²³

So;

  0.24 moles of carbon will contain 0.24 x 6.02 x 10²³  = 1.45 x 10²³ particles

Heat of vaporization of hexane is 32.3 KJ/mol.

Clausius-Clapeyron equation allows us to estimate the vapor pressure of A substance at any temperature It also provides an easy way to estimate The heat of phase transition from the vapor pressures measured at two Temperatures.

lnP2/P1=ΔHvapR(1/T1−1/T2)

Where,

P1 = vapor pressures at temperature T1

P2 = vapor pressures at temperature T2

ΔHvap = Heat of Vaporization

R = Gas constant (8.3145 J mol-1 K-1)

Using T1 =293 k and T2=303k

In(120/186) =  ΔHvap/8.31 (1/303-1/293)

ΔHvap= In(120/186) x 8.31 x 303x293/(293-303)

(-0.438) x (8.31) x (303x293)/-10

32313.6 J/mol

32.3 KJ/mol

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Record the value. Also, determine whether the pH stayed the same, became more acidic, or became more alkaline compared to the first test.

Alkaline water has a higher pH level than that of plain tap water. So proponents say that it can neutralize acid in your bloodstream. Some say that alkaline water can help prevent disease, such as cancer and heart disease.

Most fruits and vegetables, soybeans and tofu, and some nuts, seeds, and legumes are alkaline-promoting foods, so they're fair game. Dairy, eggs, meat, most grains, and processed foods, like canned and packaged snacks and convenience foods, fall on the acid side and are not allowed.

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Answer:  Newton's first law is often called the law of inertia

Explanation:

Answer:

spring tides is the correct answer of your question

The Safety Data Sheet (SDS) for regular bleach can be obtained from the manufacturer or supplier of the specific brand or product. It contains important information regarding the hazardous properties, handling, storage, and emergency procedures related to the bleach.

An SDS typically includes details such as the product's chemical composition, physical and chemical properties, potential hazards to health and the environment, precautionary measures for safe handling and storage, first-aid procedures, and information about proper disposal. It also provides guidance on personal protective equipment (PPE) to be used when handling the product and steps to take in case of accidental release or exposure.

The SDS serves as a crucial resource for understanding the potential risks associated with the use of regular bleach and helps ensure that appropriate safety measures are implemented. It is important to review and follow the information provided in the SDS to minimize the risk of accidents, injuries, or adverse health effects associated with the use of the product.

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Answer:

As you move across a period the electrons are being added to the same shell. But, protons are being added as well. This makes the nucleus more positively charged and, increasing protons has a greater effect than electrons. So, there is a greater nuclear attraction and, because the electrons are being added to the same shell that shell gets pulled in more. This causes a decrease in atomic radius.

Explanation:

The primary reason that atomic radius decreases as you move from left to right across the periodic table is; Due to the increase in electrostatic attraction between the positively charged nucleus and the negatively charged electrons.

The number of shells in elements located in the same period are equal.

However, with successive increase in the atomic number, the number of electrons and protons increases.

Consequently, the electrostatic attraction between the positively charged nucleus and negatively charged electrons increases and the radius reduces accordingly.

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Answer:

2 HC₂H₃O₂(aq) + Sr(OH)₂(aq) ⇒ Sr(C₂H₃O₂)₂(aq) + 2 H₂O

Explanation:

Let's consider the reaction between acetic acid and strontium hydroxide. This is a neutralization reaction, in which an acid reacts with a base to form salt and water. The unbalanced equation is:

HC₂H₃O₂(aq) + Sr(OH)₂(aq) ⇒ Sr(C₂H₃O₂)₂(aq) + H₂O

We have 1 acetate ion to the left and 2 to the right, so we will multiply HC₂H₃O₂(aq) by 2.

2 HC₂H₃O₂(aq) + Sr(OH)₂(aq) ⇒ Sr(C₂H₃O₂)₂(aq) + H₂O

Finally, we multiply water by 2 to get the balanced equation.

2 HC₂H₃O₂(aq) + Sr(OH)₂(aq) ⇒ Sr(C₂H₃O₂)₂(aq) + 2 H₂O

The balanced chemical equation will be

\(\rm \bold{2\;HC_2H_3O_2\;+\;Sr(OH)_2\;\rightarrow\;Sr(C_2H_3O_2)_2\;+\;2\;H_2O}\)

A balanced equation can be considered as the one in which the number of molecules of each element on the product and the reactant side is equal.

The given reaction has been in between the strontium hydroxide and acetic acid. The neutralization reaction will result in the formation of salt and water.

The reaction can be as follows:

\(\rm HC_2H_3O_2\;+\;;Sr(OH)_2\;\rightarrow\;Sr(C_2H_3O_2)_2\;+\;H_2O\)

The equation has equal strontium at both the product and reactant sides.

The equation has 1 acetate and 2 oxygen at the reactant side, while 2 acetates and 1 oxygen at the product side.

This can be balanced by multiplying the acetate at the reactant side with 2, and water at the product side with 2. This will balance the number of hydrogen, oxygen, acetate, and strontium in the equation.

The balanced chemical equation will be:

\(\rm \bold{2\;HC_2H_3O_2\;+\;Sr(OH)_2\;\rightarrow\;Sr(C_2H_3O_2)_2\;+\;2\;H_2O}\)

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111.52 mL of the HNO solution with a concentration of 15.8 M was to prepare 359 mL of 4.89 M HNO₃.

To calculate the volume of HNO₃ required to create a solution with a concentration of 4.89 M and a volume of 359 mL, we can use the following equation:

M₁V₁ = M₂V₂

Where:

M₁ = Initial molarity of the solution

V₁ = Initial volume of the solution

M₂ = Final molarity of the solution

V₂ = Final volume of the solution

Given:

Initial molarity of the solution (HNO), M₁ = 15.8 moles

Final molarity of the solution (HNO₃), M₂= 4.89 M

Final volume of the solution, V₂ 359 mL

Calculation of the V₁ (initial volume of the HNO solution):

\(V_{1}=\frac{M_{2} V_{2} }{M_{1} }\) ...........(1)

Substituting these values in Equation 1:

M₁ =  (given)

M₂ = 4.89 M

V₂ = 359 mL

\(V_{1}=\frac{4.89 \times 359 }{15.8}\)

\(V_{1}= 111.52 mL\)

Therefore, 111.52 mL of the HNO solution with a concentration of 15.8 M was to prepare 359 mL of 4.89 M HNO₃.

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There are 2.64 × 1022 molecules of sucrose present in this serving of fruit dessert containing 15.0 g of sugar.

To determine the number of molecules of sugar present in the serving, we need to calculate the number of moles of sugar and then convert it to the number of molecules.

Given:

Mass of sugar (sucrose) = 15.0 g

Molar mass of sucrose (C12H22O11) = 342 g/mol

First, calculate the number of moles of sugar using the formula:

Number of moles = Mass of substance / Molar mass

Number of moles of sugar = 15.0 g / 342 g/mol ≈ 0.0439 mol

Next, we use Avogadro's number, which states that there are approximately 6.022 × 10^23 molecules in one mole of a substance. Therefore, to find the number of molecules of sugar:

Number of molecules = Number of moles × Avogadro's number

Number of molecules of sugar = 0.0439 mol × 6.022 × 10^23 molecules/mol ≈ 2.64 × 10^22 molecules

Therefore, there are approximately 2.64 × 10^22 molecules of sugar present in this serving.

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Answer:

Cl

Explanation:

Electronegativity increases as you move up and to the right of the periodic table. For example, Florine is the most electronegative element.

In DNA codons , A DNA or RNA molecule that codes for a specific amino acid by a group of three consecutive nucleotides.

The complete question is,

What are the codons in DNA?

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This is true because as thermal energy increases, molecules move faster and liquids are turned into gas.

States of matter is determined by the amount of energy possessed by the particles. Particles of a solid has the least amount of energy, liquid particles have more energy than solid particles while gas particles possess the highest amount of energy.

To increase the pressure of a substance, greater thermal energy is added to the substance by heating it up. This heat causes the molecules of the liquid to become more energetic and move faster .

As this occurs, intermolecular forces between the substance is broken as the liquid is converted to gas. The pressure. The energetic gas particles collide faster with the walls of the container thereby increasing the pressure.

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The estimated age of the rock is 1.408 billion years, based on the fact that about 3% of the original uranium-235 remains in the rock.

The half-life of uranium-235 is 704 million years. This means that after 704 million years, half of the original uranium-235 in a rock will have turned into lead.

If tests show that only about 3% of the original uranium-235 remains in the rock, then approximately 97% of the original uranium-235 has turned into lead. This means that there has been 2 half-lives of decay (since 2 half-lives is approximately equal to 97%).

To estimate the age of the rock, we can multiply the half-life of uranium-235 by the number of half-lives that have occurred. In this case, the age of the rock can be estimated as:

Age of rock = 2 x 704 million years

Age of rock = 1.408 billion years

Therefore, the estimated age of the rock is 1.408 billion years, based on the fact that about 3% of the original uranium-235 remains in the rock.

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The formula for lithium hydrogen phosphate is Li2HPO4.

What is lithium hydrogen phosphate (Li2HPO4)?

Lithium hydrogen phosphate (Li2HPO4) is a chemical compound that contains the elements lithium, hydrogen, phosphorus, and oxygen. It is an ionic compound and a salt of phosphoric acid.

Lithium hydrogen phosphate is commonly used in the production of lithium-ion batteries and as a source of lithium ions in chemical reactions. It is also used in the synthesis of various other lithium compounds. In addition, lithium hydrogen phosphate has potential applications in the field of biomedical engineering as a material for bone tissue engineering and drug delivery.

What is an ionic compound?

An ionic compound is a type of chemical compound formed by the combination of positively charged ions (called cations) and negatively charged ions (called anions) through electrostatic attraction. The cations and anions are held together by ionic bonds, which are formed by the transfer of electrons from the cation to the anion. Ionic compounds are typically solids at room temperature and have high melting and boiling points. Examples of ionic compounds include sodium chloride (NaCl), magnesium oxide (MgO), and calcium carbonate (CaCO3).

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Answer:

A

Explanation:

The products are the stuff on the right side of the arrow (yield sign). In this case that would be C₆H₁₂O₂ + 6O₂.

Heat energy will be released by solid A which will then be absorbed by liquid B.

These little particles vibrate back and forth or run into each other constantly. All matter contains a type of energy known as heat (or thermal) energy, which is produced by the movement of particles.

Particle energy increases with temperature. It is possible for some of this energy to be transferred to cooler particles. For instance, in the gas state, when a fast-moving particle strikes a slower-moving particle, some of the energy from the collision is transferred to the slower-moving particle, increasing its speed.

A region of high energy will gradually spread throughout the material as a result of billions of moving particles colliding with one another until thermal equilibrium is established.

Therefore, heat energy will be released by solid A which will then be absorbed by liquid B.

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Answer:

Aluminum even after being an active metal is used as a structural metal due to its toughness, high strength, lightweight, and resistance to the process of corrosion. It is resistant to corrosion as its reactivity gets suppressed due to the formation of an aluminum oxide film which is protective in nature, on its surface. Passivation is the term for the formation of the protective coating.

The elements that make up organisms, such as carbon, nitrogen, hydrogen, sulphur, and others, are recycled through biotic and abiotic processes known as biogeochemical cycles.

Chlorine, Ammonia, Hydrogen, Nitrogen and Sulfur oxides.

Organic substances are first assimilated into the body of living things from nonliving reserves. Element transfer occurs between species that ingest them and the organisms that initially take them into their bodies. This keeps happening until they finish the cycle and decompose to return to the nonliving realm. As a result, matter goes through cycles. The cycling of water in the atmosphere is exemplified by the hydrological cycle, which is a key example.

5 gases that are found in the home are as follow,

carbon monoxide

1.Chlorine

2.Ammonia

3.Hydrogen

4.Nitrogen

5.Sulfur oxides

LPG, or liquefied petroleum gas, is the most widely used fuel for heating. It either comprises butane, propane, or a combination of the two gases.

10 example of gas are as follow,

Helium

Argon

Neon

Krypton

Radon

Xenon

Nitrogen

Hydrogen

Chlorine

Fluorine

Oxygen

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2.65g/ml is the density of a piece of granite whose volume is 20 mL and mass is 53grams. Density is the mass of a specific material per unit volume.

Density is the mass of a specific material per unit volume. Density is defined as d = M/V, in which d represents density, M is weight, as well as V is volume. Density is generally expressed in grams every cubic centimetre. Water, for example, has a density of 1 gram per square centimeter, but Earth has a density of 5.51 kilograms per cubic centimetre.

Density is sometimes measured in kilos per cubic centimeter (in metre-kilogram-second or SI units). The density of air, for example, is 1.2 kilos per cubic metre. 

density = mass / volume

            =53/ 20

            =2.65g/ml

Therefore, 2.65g/ml is the density of a piece of granite whose volume is 20 mL and mass is 53grams.

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Explanation:

Molarity, or concentration in amount of matter (mol/L), is the ratio between the amount of matter in the solute (n) and the volume of the solution in liters (V): M = n/V

Here we have:

m = 166 g of KI (solute)

V = 1000 mL = 1L (solution)

So we need to transform 166 g of KI into moles. We use the following formula:

n = m/MM

MM of KI is 166 g/mol

n = 166/166

n = 1 mol

So:

M = 1/1

M = 1 mol/L

Answer: M = 1 mol/L

Answer:

B

Explanation:

I had same question

Answer:

ok, here is your answer

Explanation:

AI-generated answer

To find the mass of oxygen that reacted, we need to use the Law of Conservation of Mass, which states that in a chemical reaction, the mass of the reactants equals the mass of the products.

First, we need to find the number of moles of hydrogen that reacted:

Molar mass of hydrogen (H₂) = 2.016 g/mol

Number of moles of H₂ = mass/molar mass = 46.2 g/2.016 g/mol = 22.92 mol

Next, we need to use the balanced chemical equation to find the number of moles of water produced:

hydrogen + oxygen → water

2H₂ + O₂ → 2H₂O

From the equation, we can see that for every 2 moles of H₂, 1 mole of O₂ is required to produce 2 moles of H₂O. Therefore, the number of moles of O₂ required to produce 22.92 moles of H₂O is:

Number of moles of O₂ = 1/2 x 22.92 mol = 11.46 mol

Finally, we can find the mass of oxygen that reacted by using its molar mass:

Molar mass of oxygen (O₂) = 32.00 g/mol

Mass of oxygen = number of moles x molar mass = 11.46 mol x 32.00 g/mol = 366.72 g

Therefore, the mass of oxygen that reacted is 366.72 g.

Heat can be transmitted from a test tube to the surroundings by several different mechanisms, including conduction, convection, and radiation.

Conduction is the transfer of heat through a material, from a region of higher temperature to a region of lower temperature. In the case of a test tube, heat can be conducted through the glass walls and into the surrounding air or other materials that the test tube is in contact with.
Convection is the transfer of heat through the movement of fluids or gases. In the case of a test tube, as the contents of the test tube heat up, convection currents can be set up within the liquid or gas, which can transfer heat to the surrounding air or other materials.

Radiation is the transfer of heat through electromagnetic waves, such as infrared radiation. As the test tube and its contents heat up, they will emit some amount of infrared radiation, which can be absorbed by the surrounding air or other materials and contribute to the transfer of heat to the surroundings.
In general, the mechanism of heat transfer that dominates will depend on a variety of factors, such as the specific materials involved, the temperature difference between the test tube and the surroundings, and the rate of heating.

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