a nuclear power plant operates at 40.0 %% efficiency with a continuous production of 1012 mwmw of usable power in 1.00 yearyear and consumes 1.04×106 gg of uranium-235 in this time period. what is the energy in joules released by the fission of a single uranium-235 atom? express your answer numerically in joules per atom.

Explanation: Ammonia has pretty strong intermolecular forces because it can form hydrogen bonds, however it can't form as many hydrogen bonds per molecule as water and so its boiling point and melting point are lower.

As ammonia has less intermolecular force of attraction, it have usually low boiling point.

Hydrogen bonding is not a covalent bond to a hydrogen atom, but rather a type of dipole-dipole attraction between molecules.

The attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as an N, O, or F atom and another very electronegative atom causes it.

When a hydrogen atom bonded to an electronegative atom approaches another electronegative atom, strong intermolecular forces are created.

Simple molecules include hydrogen, ammonia, methane, and pure water. All of them have strong covalent bonds among both their atoms but much weaker intermolecular forces.

When one of these substances melts or boils, the weak intermolecular forces, not the strong covalent bonds, break.

Thus, ammonia usually have low boiling point.

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Answer: 342.3 g/mol

Explanation:

The molar mass of C12H22O11 (sucrose or table sugar) is 342.30 g/mol.

Mass in grams of one mole of the compound is known as molar mass of a substance. In a substance, amount of entities present like atoms, molecules, ions, is defined as mole. Mole of any substance is 6.022×1023 molecules.

The characteristic molar mass of a component is just mass in g/mol and molar mass also can be calculated by multiplying mass in amu by the molar mass constant (1 g/mol). To calculate molar mass of a compound with multiple atoms, sum all the masses of the constituent atoms.

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Answer:

m=1,48g

Explanation:

The Lewis structure of ammonia (NH3) is represented as:  H        H        H      NH2e-                1                  2                  3                   4  +NH3: : : Each line between the atoms represents a covalent bond, and each pair of dots represents a lone pair of electrons.

The structure that is the Lewis structure for ammonia (NH3) is a trigonal pyramid. It is also considered as the central atom with three outer atoms. This is a type of covalent bond that is present in nitrogen and hydrogen atoms in the ammonia molecule.

The Lewis structure is based on the octet rule which states that an atom wants to have 8 electrons in their outermost shell (in some cases, 2 electrons in their outermost shell for hydrogen) to achieve stability. The Lewis structure also shows the arrangement of atoms and bonds in a molecule. It helps to predict the geometry of the molecule and understand its properties.

To draw the Lewis structure of ammonia (NH3), we first need to count the total number of valence electrons in the molecule. Nitrogen has five valence electrons, and each hydrogen atom has one valence electron. So the total number of valence electrons in NH3 is 5+3(1) = 8 electrons. The nitrogen atom in NH3 is the central atom that is surrounded by three hydrogen atoms.

Nitrogen shares its three valence electrons with the three hydrogen atoms to form three covalent bonds. This results in a total of six electrons being used up, with two left over.The two remaining electrons form a lone pair on the nitrogen atom. The lone pair is responsible for the trigonal pyramid shape of the molecule.

The Lewis structure of ammonia (NH3) is represented as:  H        H        H      NH2e-                1                  2                  3                   4  +NH3: : : Each line between the atoms represents a covalent bond, and each pair of dots represents a lone pair of electrons.

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The statement "100% iodine and 95% alcohol are rapidly effective disinfectants" is False.

What are disinfectants?

Disinfectants are chemical agents that can destroy or remove harmful microorganisms, viruses, and bacteria from various surfaces, areas, and substances. The effectiveness of a disinfectant can be determined by its ability to kill bacteria, viruses, and other microorganisms effectively.

What are the effective disinfectants?

The following are the effective disinfectants: Chlorine. Chlorine is one of the most effective disinfectants, as it has a broad spectrum of antimicrobial activity. It is highly effective against bacteria, viruses, and fungi, among other microorganisms. Iodine. Iodine is another effective disinfectant, but it has a narrow range of antimicrobial activity. It is highly effective against bacteria, viruses, and fungi.Alcohol. Ethanol and isopropanol are two types of alcohol that are commonly used as disinfectants. They have broad-spectrum antimicrobial activity, making them effective against bacteria, viruses, and fungi.

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Answer:

See the answer below

Explanation:

In chemistry, indicators are substances that are capable of changing colors with respect to the pH. Each indicator has its characteristic color in acidic pH and another characteristic color in alkaline pH.

Methyl orange indicator appears red in acidic solution and yellow in basic solutions. Phenolphthalein is usually colorless in acidic solutions and appears pink in basic solutions. A red litmus paper will turn blue in alkaline solutions while a blue litmus paper will turn red in acidic solutions.

Answer:

B. They travel at the same speed through any one material.

Explanation:

Scientists utilize their knowledge of previous occurrences to establish a general principle or explanation that may be used to forecast future events.

Step 1: Collect data. These observations must be objective rather than subjective. In other words, the findings should be verifiable by other scientists. Subjective observations based on human ideas and beliefs do not belong in the world of science.

Step 2: Create a hypothesis. Our observations provide information about the past or the present. We want to be able to forecast future occurrences as scientists. As a result, we must employ our reasoning abilities.

A hypothesis is a name given to the general principle. Inductive reasoning is the sort of reasoning involved (deriving a generalization from specific details).

A hypothesis should include the following features:

• It should be a universal concept applicable across space and time.

• It should be a working hypothesis.

• It should be consistent with existing observations.

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Answer:

i think its  Hydrogen gas and oxygen gas react explosively to form water. and . Methane burns in air that contains oxygen.

Explanation: Mine was a little bit different than yours please forgive me if I'm wrong I chose answers that was similar to mine

Methane burns in air that contains oxygen and Hydrogen gas and oxygen gas react explosively to form water. These  two reactions are faster than the others.

Chemically speaking, methane has the formula CH4. The simplest alkane and the primary component of natural gas, it is a group-14 hydride. The amount of oxygen breathed from the air might be decreased by high methane levels. This may include headaches, facial flushes, slurred speech.

Unscented, colorless, and combustible, methane is a gas. It is mostly used as fuel to produce heat and light. It is also employed in the production of organic compounds. Methane is frequently found in landfills, marshes, septic tanks, sewers, and other places where natural materials decompose.

Suffocation can result from high methane concentrations in enclosed spaces because methane reduces the amount of oxygen in the air. Lack of oxygen can cause headaches, nausea, lightheadedness, and unconsciousness.

Thus, option A and D are correct.

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Answer:

7 hours

Explanation:

627/96=7

7

I hope this helped! :)

The correct order of acid strengths (largest to smallest) is: 4) HNO₃ > HCIO₂ > HBrO > HCIO

The  acid strength of an acid is determined by its ability to donate a hydrogen ion (H+). The more readily an acid donates its hydrogen ion (H+ ion), the stronger it is.

In option 1, HCIO is listed as the strongest acid, but this is incorrect. HNO₃ is a stronger acid than HCIO.

In option 2, HBrO is listed as the strongest acid, but this is also incorrect. HNO₃ is still the strongest acid.

Option 3 has HCIO listed as a stronger acid than HBrO, which is incorrect. HBrO is a stronger acid than HCIO.

Option 5 has HClO₂ listed as the strongest acid, which is also incorrect. HNO₃ is still the strongest acid.

Therefore, option 4 is the correct order of acid strengths, with HNO₃ being the strongest acid, followed by HCIO₂, HBrO, and HCIO in decreasing order of strength.

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Answer:

The answer to this question is 2.

Answer:

3) neutrons and protons

Explanation:

I just completed Grade 11 Chemistry with a 97% and I'm still under the impression that all atoms have only neutrons and protons in their nuclui.

I apologize if this is a question above my current education.

1) There is a new product on the right hand side

2) Magnesium and oxygen

3) The stoichiometric coefficient of the reactants

4) The number of atoms of each of the elements in the molecule

5) At the start of the reaction, the elements are isolated while at the end of the reaction, the elements are combined.

We have to note that when we talk about a chemical reaction we mean the combination of two or more substances so that we can be able to get a product that is different from the reactants.

in this case, we can see that the reaction that has taken place is the combination of the oxygen molecule and the magnesium atom so as to give the magnesium oxide compound.

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When the gas is compressed to a volume of 10.7 L, its pressure is approximately 1.538 atm.

To determine the final pressure of the gas when it is compressed to a volume of 10.7 L, we can use Boyle's Law. Boyle's Law states that at a constant temperature, the pressure and volume of a gas are inversely proportional.

The formula for Boyle's Law is:

P1 * V1 = P2 * V2

Where P1 and V1 represent the initial pressure and volume, and P2 and V2 represent the final pressure and volume.

Given:

Initial volume (V1) = 12.6 L

Initial pressure (P1) = 1.31 atm

Final volume (V2) = 10.7 L (compressed volume)

We need to find the final pressure (P2).

Using Boyle's Law, we can rearrange the formula to solve for P2:

P2 = (P1 * V1) / V2

Substituting the given values:

P2 = (1.31 atm * 12.6 L) / 10.7 L

Calculating this expression:

P2 ≈ 1.538 atm

Therefore, when the gas is compressed to a volume of 10.7 L, its pressure is approximately 1.538 atm.

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The specific heat (c) of a substance can be calculated using the equation: Q = mcΔT, where Q is the heat absorbed, m is the mass of the substance, c is the specific heat, and ΔT is the change in temperature. In this case, we have a 23.23 g sample of the substance that absorbs 2477 J of heat, resulting in a temperature change of 106.9 °C (129.4 °C - 22.5 °C). By substituting these values into the equation and solving for c, we can determine the specific heat of the substance.

In this scenario, a 23.23 g sample of the substance initially at 22.5 °C absorbs 2477 J of heat, resulting in a temperature increase of 106.9 °C (129.4 °C - 22.5 °C). To determine the specific heat (c) of the substance, we can use the equation Q = mcΔT, where Q is the heat absorbed, m is the mass of the substance, c is the specific heat, and ΔT is the change in temperature. By substituting the given values, we have 2477 J = (23.23 g)(c)(106.9 °C). Solving this equation for c, we find that the specific heat of the substance is approximately 1.10 J/g°C.

Therefore, the specific heat of the substance is approximately 1.10 J/g°C. This value indicates the amount of heat energy required to raise the temperature of 1 gram of the substance by 1 degree Celsius.

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Answer:

The pressure is = 897 torr

Explanation:

Answer:

chemical energy is the energy of a chemical substance that is stored in the bonds of chemical compounds and is released when they undergo a chemical reaction and transform into another substance

The two universal electron acceptors that take electrons from the citric acid cycle and glycolysis are: a. FADH2,  b. NAD+.

In both the citric acid cycle and glycolysis, energy-rich molecules such as glucose are broken down to produce energy in the form of ATP. During these processes, electrons are transferred from various molecules to electron carriers, which act as electron acceptors.

FADH2 (flavin adenine dinucleotide) and NAD+ (nicotinamide adenine dinucleotide) are two important electron carriers involved in these metabolic pathways.

FADH2 is the reduced form of FAD, and it accepts electrons during the citric acid cycle. It is formed when succinate is oxidized to fumarate, and it delivers electrons to the electron transport chain to generate ATP.

NAD+ is the oxidized form of NADH, and it accepts electrons during both the citric acid cycle and glycolysis. In the citric acid cycle, NAD+ accepts electrons when isocitrate is converted to alpha-ketoglutarate and when malate is converted to oxaloacetate. In glycolysis, NAD+ accepts electrons during the oxidation of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate.

On the other hand, FAD (flavin adenine dinucleotide) is not a universal electron acceptor. It is the oxidized form of FADH2, and it acts as a carrier of electrons rather than an acceptor.

Oxygen (e) is the final electron acceptor in the electron transport chain, which occurs after the citric acid cycle and glycolysis. It accepts electrons from NADH and FADH2 to form water.

The two universal electron acceptors that take electrons from the citric acid cycle and glycolysis are FADH2 and NAD+. FADH2 accepts electrons during the citric acid cycle, while NAD+ accepts electrons in both the citric acid cycle and glycolysis.

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The maximum amount of magnesium carbonate (MgCO₃) that can dissolve in a 0.251 M magnesium acetate (Mg(CH₃COO)₂) solution can be determined using the solubility product constant (Ksp) and the common ion effect.

The Ksp for magnesium carbonate is 6.82 x 10⁻⁶. In a saturated solution of MgCO₃, the ions dissociate as follows:
MgCO₃(s) ⇌ Mg²⁺(aq) + CO₃²⁻(aq)
To find the maximum concentration of MgCO₃ that will dissolve in the magnesium acetate solution, we need to consider the common ion effect. Since Mg²⁺ is a common ion present in both MgCO₃ and Mg(CH₃COO)₂, it will affect the solubility of MgCO₃.
The initial concentration of Mg²⁺ ions in the 0.251 M Mg(CH₃COO)₂ solution is 0.251 M. Let x represent the additional concentration of Mg²⁺ and CO₃²⁻ ions from the dissolved MgCO₃. The equilibrium concentrations will be:
Mg²⁺: 0.251 + x
CO₃²⁻: x
According to the solubility product expression, Ksp = [Mg²⁺][CO₃²⁻]. Substituting the equilibrium concentrations, we get:
6.82 x 10⁻⁶ = (0.251 + x)(x)
Solving for x, we find that the maximum concentration of magnesium carbonate that will dissolve in a 0.251 M magnesium acetate solution is approximately 2.72 x 10⁻⁵ M.

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Answer:

A

Explanation:

l took the test

Radiocarbon dating, also known as carbon-14 dating, is a method used to determine the age of organic materials. It is based on the radioactive decay of the isotope carbon-14 (14C).

Living organisms constantly absorb carbon, including a small amount of carbon-14, from the atmosphere. When an organism dies, it no longer takes in carbon-14, and the existing carbon-14 begins to decay at a known rate. By measuring the ratio of carbon-14 to stable carbon isotopes (carbon-12 and carbon-13) in a sample, scientists can estimate the time that has elapsed since the organism's death. Radiocarbon dating is effective for dating materials up to about 50,000 years old.

Therefore, both radiocarbon dating and radiopotassium dating rely on the principles of radioactive decay. The decay rates of the isotopes used in these methods are well-established and constant, allowing for accurate age determinations.

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Answer:

M2 = 0.95M

Explanation:

M1V1 = M2V2

(1.9)(0.5) = M2(1)

M2 = 0.95M

The correct reactant ratio for the reaction 2Fe + 3Cl2 → 2FeCl3 is 2 moles of iron (Fe) for every 3 moles of chlorine (Cl2).

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Answer: A Crane is not an example of rigging equipment.

Explanation: A Crane is not an example of rigging equipment.

The wire is not an example of rigging equipment. So option D is correct.

Hoisting means all equipment and materials used to lift and carry heavy objects. Cranes, plastic straps, and alloy steel chains are examples of rigging equipment. Wire, on the other hand, is not generally considered a rigging material.

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Answer:

#1

Chemical symbol is

\(\\ \rm\rightarrowtail _1^3H\)

#2

Its Deuterium

Answer:

Deposition: the process in which a gas changes directly to a solid without going through the liquid stage.

In the above given exam the wind and cold blowing on a cold winter day formed ice due to the weather an temperature outside. It was on the windshield as it found a perfect slanting surface to get stuck to.  

CuSO4 + 2 NaOH = Na2SO4 + Cu(OH)2 is well balanced