For each of the following two substances NOCl and SF6 answer the following questions:

Draw Lewis dot structure (include all dots necessary for each atom)

a.Identify the name of molecular geometry
b.Identify bond angles
c.Identify the molecular polarity of each substance
d.Calculate the formal charge of S atom in SF6
e.Calculate the formal charge of N atom in NOCl

You need to know the reaction's standard enthalpy change, standard entropy change, and temperature in order to calculate the value of Kp at a specific temperature.

The equilibrium constants for a perfect gaseous mixture are Kp and Kc. When equilibrium concentrations are represented in terms of atmospheric pressure and Kc is the equilibrium constant, Kp is the equilibrium constant utilized.

The equilibrium constant, as defined by the "Law of Chemical Equilibrium," is the ratio of product of product concentration to product of reactant concentration. The stoichiometric coefficient in the balanced chemical equation increases with each concentration term.

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The necessary volume of H₂ gas to obtain 5.0 g of propane (C₃H₈) is approximately 12.60 liters.

To determine the necessary volume of H₂ gas to obtain 5.0 g of propane (C₃H₈), we need to use the molar ratio between H₂ and C₃H₈, as well as the density of H₂ gas.

First, let's calculate the molar mass of propane (C₃H₈):

C: 12.01 g/mol

H: 1.01 g/mol

Molar mass of C₃H₈ = (3 * C) + (8 * H) = (3 * 12.01) + (8 * 1.01) = 44.11 g/mol

Next, we can determine the number of moles of propane (C₃H₈) using its mass:

Number of moles = Mass / Molar mass

Number of moles of C₃H₈ = 5.0 g / 44.11 g/mol ≈ 0.1134 mol

Now, we can establish the molar ratio between H₂ and C₃H₈ from the balanced chemical equation:

C₃H₈ + 5H₂ → 3CH₄

According to the balanced equation, 5 moles of H₂ are required to produce 1 mole of C₃H₈.

Therefore, the number of moles of H₂ required can be calculated as:

Number of moles of H₂ = 5 * Number of moles of C₃H₈ = 5 * 0.1134 mol = 0.567 mol

Finally, we can determine the necessary volume of H₂ gas using the ideal gas law equation:

Volume = (Number of moles * Gas constant * Temperature) / Pressure

Given that the density of H₂ is 0.09 g/L, we can convert it to moles per liter:

Density = Mass / Volume

0.09 g/L = 2 g/mol / Volume (since the molar mass of H₂ is 2 g/mol)

Solving for Volume:

Volume = 2 g/mol / 0.09 g/L ≈ 22.22 L/mol

Now, we can calculate the necessary volume of H₂ gas:

Volume of H₂ = Number of moles of H₂ * Volume per mole

Volume of H₂ = 0.567 mol * 22.22 L/mol ≈ 12.60 L

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Regarding the types of bonds, we can conclude that:

There are 3 kinds of chemical bonds.

Let's identify the type of bond in each of the following molecules.

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Answer:

Explanation:

When the resistance in a circuit is halved, the voltage increases by a factor of 4. This relationship is known as Ohm's law, which states that voltage (V) is equal to current (I) multiplied by resistance (R) in a circuit, or V = I x R.

If the resistance in a circuit is halved, then R in Ohm's law is divided by 2, which means that the voltage (V) across the circuit increases by a factor of 2, assuming that the current (I) remains constant.
However, the current (I) in the circuit may also change if the resistance is altered. If the voltage source remains constant and the resistance is halved, then the current (I) will double, as per Ohm's law. Therefore, the voltage (V) across the circuit will increase by a factor of 2 x 2 = 4, which is four times its original value.
This is because the current in the circuit also changes when the resistance is altered, according to Ohm's law.

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When hydrogen bromide is added to 2-methylbut-2-ene, two products are expected to be produced: 2-bromo-2-methylbutane (major product) and 3-bromo-2-methylbutane (minor product).

The addition of HBr to 2-methylbut-2-ene follows the Markovnikov addition rule. This means that the hydrogen atom and the bromine atom will add to the carbon atoms in the double bond, such that the hydrogen atom adds to the carbon with the greater number of hydrogen atoms, and the bromine atom adds to the carbon with the lesser number of hydrogen atoms.

In this case, the hydrogen atom will attach to the second carbon atom, which has three hydrogen atoms, while the bromine atom will attach to the third carbon atom, which has only one hydrogen atom. This produces the major product, 2-bromo-2-methylbutane.

The formation of the minor product, 3-bromo-2-methylbutane, occurs due to the rearrangement of the carbocation intermediate formed during the addition reaction. The carbocation can rearrange either by shifting a methyl group from the second to the third carbon, or by shifting a hydrogen atom from the third to the second carbon. This rearrangement produces the minor product, 3-bromo-2-methylbutane.

In conclusion, the addition of HBr to 2-methylbut-2-ene produces two products: 2-bromo-2-methylbutane (major product) and 3-bromo-2-methylbutane (minor product). The major product forms due to Markovnikov addition rule, while the minor product forms due to carbocation rearrangement.

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Answer:

last one

Explanation:

makes the most sense

Answer:

It should be Fossil records provide evidence of the age of the Earth.

Hope you get a good grade.

Explanation:

Answer:

B should be the answer

Explanation:

Answer:

The answer is 82

Explanation:

Dude in the stop says so

The decomposition of aspirin (acetylsalicylic acid,\(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)).

The decomposition of aspirin (acetylsalicylic acid, \(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)). To determine the moles of each product formed, we need to consider the balanced chemical equation for the reaction:

\(C_{9} H_{8} O_{4} = > C_{7} H_{6}O_{3} +CH_{3} COOH\)

From the equation, we can see that for every 1 mole of aspirin, 1 mole of salicylic acid and 1 mole of acetic acid are produced.

Therefore, the moles of salicylic acid and acetic acid formed will be equal to the number of moles of aspirin that decomposes. If we know the amount of aspirin in moles, we can directly calculate the moles of each product based on stoichiometry.

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The mass of the asteroid is C. 1.2 x \(10^{12}\) Kg

To find the mass of the other asteroid, we can rearrange the equation for the gravitational force between two objects:

F = (G * m1 * m2) / \(r^{2}\)

where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the two asteroids, and r is the distance between them.

Given that the distance between the asteroids is 75000 m, the force of gravity between them is 1.14 N, and one asteroid has a mass of 8 x \(10^{7}\) kg, we can substitute these values into the equation and solve for the mass of the other asteroid (m2):

1.14 N = (6.67430 × \(10^{-11}\) N \(m^{2}\)/\(Kg^{2}\) * 8 x \(10^{7}\) kg * \(m2\)) / \((75000 m)^{2}\)

Simplifying and solving the equation, we find that the mass of the other asteroid (m2) is approximately 1.2 x \(10^{12}\) kg. Therefore, Option C is correct.

The question was incomplete. find the full content below:

Two asteroids are 75000 m apart one has a mass of 8 x \(10^{7}\) kg if the force of gravity between them is 1.14 what is the mass of the asteroid

A. 3.4 x \(10^{11}\) kg

B. 8.3 x \(10^{12}\) kg

C. 1.2 x \(10^{12}\) kg

D. 1.2 x \(10^{10}\) kg

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Answer is

A methhanoic Acid

A group of similar or different atoms linked together makes the molecules. The molecule given is methanoic acid. Thus, option A is correct.

Methanoic acid is a compound that has carboxylic acid as the functional group. It is the simplest carboxylic acid that has the formula HCOOH. As the molecule has a COOH group it will be acid.

The molecule can not be an aldehyde as it lacks the R−CH=O group, it cannot be alcohol as it lacks the OH group, and neither it can be methylamine as it lacks the nitrogen group.

Therefore, option A. methanoic acid is correct.

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The electron donor is \(H_2\).

The electron acceptor is \(NAD^+\)

When the electron donor loses the electron, it becomes oxidized.

When the electron acceptor accepts the electron, it becomes reduced.

Overall, the electron travels from H to  \(NAD^+\).

Oxidation is defined as:

Reduction is defined as:

Looking at the reaction, \(NAD^+\) gained hydrogen or an electron to become NADH. this means that NADH has been reduced. The reducing agent or the electron donor is \(H_2\) .

Thus, the electron acceptor is \(NAD^+\). When the electron donor, \(H_2\), loses the electron, it becomes oxidized to \(H^+\).

When the electron acceptor, \(NAD^+\), accepts the electron, it becomes NADH.

This means that electron travels from  \(H_2\) to \(NAD^+\)

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Answer:

25,272

Explanation:

Multiply 9.0 x 108 = 972

Multiply 3.0 x 10 = 30 - 4 = 26

Lastly, multiply 972 x 26= 25,272

Answer:hi

Explanation:

The empirical formula for the given compound B₃H₆N₃ is BH₂N. Therefore, option (1) is correct.

The empirical formula can be described as the simplest ratio of the number of different atoms present in a compound. The molecular formula of the compound can be defined as the actual number of each atom present in a molecule. This formula is generally used and is also a multiple of the empirical formula of a compound.

The empirical formula provides the ratio of the number of atoms of different elements in a given compound. The percentage composition of a compound gives the empirical formula of that compound.

Given the compound is inorganic benzene which has a molecular formula is  B₃H₆N₃. We can write this molecular formula as (BH₂N)₃. Therefore the empirical formula of the given compound is BH₂N.

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According to the problem the specific heat of the metal is 0.0329 cal/g°C.

Specific heat is the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree. It is usually expressed in units of joules per kilogram-kelvin (J/kg-K). It is an important physical property of a substance that affects the rate of heat transfer.

The specific heat of a metal can be calculated using the equation, q = mcΔT,
where q is the amount of heat energy,
m is the mass of the metal sample,
c is the specific heat, and
ΔT is the change in temperature. In this problem, q = 10.57 g × c × (24.15ºC - 22.50ºC) = 2.85 g × c.
The amount of heat energy required to raise the temperature of the water bath can be calculated using the equation q = mcΔT,
where q is the amount of heat energy, m is the mass of the water bath,
c is the specific heat of water (4.184 J/g°C), and
ΔT is the change in temperature. In this problem, q = 104.0 g × 4.184 J/g°C × (24.15ºC - 22.50ºC) = 86.67 J.
The specific heat of the metal can be calculated by dividing the amount of heat energy required to raise the temperature of the metal sample by the amount of heat energy required to raise the temperature of the water bath. This gives us c = 2.85 g × c / 86.67 J = 0.0329 cal/g°C.
Therefore, the specific heat of the metal is 0.0329 cal/g°C.

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Answer:

The Barbary sheep, also known as the aoudad, is a unique species that's adapted to life in the rugged terrain of North Africa. These sheep have a thick coat of fur that allows them to stay warm in the harsh mountain climate. They also have strong legs that help them climb steep inclines and rocky outcroppings.

As an animal, the Barbary sheep is of scientific interest for a variety of reasons. Here are a few examples:

Habitat and ecology: Barbary sheep have adapted to a range of habitats, from arid deserts to mountainous terrain. They are well-suited to hot and dry climates and have a range of adaptations that help them survive in these conditions. Studying these adaptations can help scientists understand how animals cope with extreme environments.

Social behavior: Barbary sheep are social animals that live in groups called bands. They have a hierarchical social structure, with dominant males leading the group and mating with multiple females. Studying this social behavior can provide insights into the evolution of social systems and the factors that influence reproductive success.

Reproductive biology: Barbary sheep are polygynous, meaning that males mate with multiple females. They have a seasonal breeding pattern, with mating occurring in the fall and early winter. Studying the reproductive biology of Barbary sheep can help scientists understand the factors that influence reproductive success and the evolution of mating systems.

Genetics: The Barbary sheep is of interest to geneticists because it is a species that has undergone recent divergence. There are several subspecies of Barbary sheep, each with distinct genetic traits. Studying the genetic diversity of Barbary sheep populations can provide insights into the factors that drive speciation and the genetic basis of adaptations.

In terms of their biology, Barbary sheep are part of the Bovidae family and are closely related to goats and sheep. They have a complex digestive system that allows them to extract nutrients from tough plant material that other animals can't digest. They are also highly adaptable and can survive in a variety of habitats, from dry deserts to snowy mountain peaks.

In order to study Barbary sheep, scientists use a variety of methods such as field observations, tracking, and genetic analysis. By studying these animals, researchers can gain a better understanding of their behavior, ecology, and genetics. This knowledge can then be used to develop conservation strategies and management plans to help ensure the survival of this unique species.

Explanation:

Petroleum is a naturally occurring liquid mixture of hydrocarbons, which is usually referred to as crude oil. It is a non-renewable resource that is extracted from the ground by drilling wells.

Petroleum is a complex mixture of various components, and it is refined into different products for use in different industries. There are various products obtained from petroleum. These products include gasoline, diesel fuel, heating oil, jet fuel, kerosene, asphalt, lubricants, and petrochemicals. Each of these products has its own unique properties and uses.

1. Gasoline: Gasoline is the most commonly used petroleum product. It is a liquid fuel that is used in internal combustion engines in cars, trucks, and other vehicles. Gasoline is a mixture of various hydrocarbons that have been refined from crude oil.

2. Diesel Fuel : Diesel fuel is another liquid fuel that is obtained from petroleum. It is used in diesel engines in trucks, buses, and other heavy-duty vehicles. Diesel fuel is made up of hydrocarbons that are heavier than those in gasoline.

3. Heating Oil :Heating oil is a liquid fuel that is used to heat homes and buildings. It is similar to diesel fuel but is refined to have a higher boiling point.

4. Jet Fuel: Jet fuel is a type of kerosene that is used to power jet engines in airplanes. It is refined to have a low freezing point and a high energy content.

5. Kerosene: Kerosene is a liquid fuel that is used for lighting, heating, and cooking. It is similar to jet fuel but is refined to have a higher boiling point.

6. Lubricants: Lubricants are oils that are used to reduce friction between moving parts in engines and machinery. They are made from refined petroleum and can be used in a variety of applications.

7. Petrochemicals: Petrochemicals are chemicals that are derived from petroleum. They are used in a wide range of products, including plastics, synthetic fibers, rubber, and detergents.

Overall, petroleum is an important resource that is used to produce a wide range of products that we use in our daily lives. The products obtained from petroleum have a significant impact on the economy, transportation, and various industries.

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The maximum temperature of the water in the insulated container after the copper metal is added is 40.7 °C.

The problem can be solved using the principle of conservation of energy, which states that the heat lost by the copper metal is equal to the heat gained by the water.

To calculate the heat lost by the copper, the formula

q = m * c * delta T

is used, where q is the heat lost, m is the mass of copper, c is the specific heat of copper, and delta T is the change in temperature of the copper.

Given that the copper is heated from 19.3 °C to 100.0 °C, the heat lost by the copper is calculated to be 450.5 J.

To calculate the heat gained by the water, the same formula is used, where m is the mass of water, c is the specific heat of water, and delta T is the change in temperature of the water.

We are given that the initial temperature of the water is 19.3 °C and the mass of water is 47.5 g. Assuming the final temperature of the water to be T °C, the expression for the heat gained is

47.5 g * 4.184 J/(g·°C) * (T - 19.3) °C.

Equating the expressions for the heat lost and gained, we get

450.5 J = 47.5 g * 4.184 J/(g·°C) * (T - 19.3) °C.

Simplifying and solving for T, we get

T = 40.7 °C,

which is the final temperature of the water after the copper is added.

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Answer: Standard temperature and pressure (STP) refers to the nominal conditions in the atmosphere at sea level. These conditions are 0 degrees Celsius and 1 atmosphere (atm) of pressure. The STP value is important to physicists, chemists, engineers, pilots and navigators, among others.

The balanced equation for the reaction between sodium carbonate (Na2CO3) and calcium chloride (CaCl2) to produce solid calcium carbonate (CaCO3) and sodium chloride (NaCl) can be written as follows:

Na2CO3 + CaCl2 -> CaCO3 + 2NaCl

Sodium carbonate (Na2CO3) contains two sodium (Na) ions, one carbonate (CO3) ion, and calcium chloride (CaCl2) contains one calcium (Ca) ion and two chloride (Cl) ions.

To balance the equation, we need to ensure that the number of atoms of each element is equal on both sides.

On the left side, we have:

2 Na atoms (from Na2CO3)

1 C atom (from CO3)

3 O atoms (from CO3)

1 Ca atom (from CaCl2)

2 Cl atoms (from CaCl2)

On the right side, we have:

1 Ca atom (from CaCO3)

1 C atom (from CaCO3)

3 O atoms (from CaCO3)

2 Na atoms (from 2NaCl)

2 Cl atoms (from 2NaCl)

By comparing the number of atoms on both sides, we can balance the equation by adjusting the coefficients. The balanced equation is:

Na2CO3 + CaCl2 -> CaCO3 + 2NaCl

This equation shows that when sodium carbonate and calcium chloride react, they produce solid calcium carbonate and sodium chloride. The coefficients in front of each compound indicate the number of moles or molecules involved in the reaction, ensuring that the law of conservation of mass is upheld.

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The solubility of\(LaF_3\) in water is 3.04 x 10^-6 mol/L.

The solubility of \(LaF_3\) in water can be determined using the Ksp expression:

\(Ksp = [La^{3+}][F^-]^3\)

Where \([La^{3+}]\)and \([F^-]\) are the molar concentrations of the \(La^{3+}\) and \(F^-\) ions in the solution.

Since each \(LaF_3\) formula unit dissociates into one \(La^{3+}\) ion and three \(F^-\) ions, the molar solubility of \(LaF_3\) can be represented as x. Thus, the molar concentrations of \(La^{3+}\) and \(F^-\) ions in the solution can be written as x and 3x, respectively.

Substituting these values into the Ksp expression gives:

Ksp = x*(3x)^3 = 27x^4

Now, we can solve for x:

x = (Ksp/27)^(1/4)

= (2 x 10^-19 / 27)^(1/4)

= 3.04 x 10^-6 mol/L

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Answer:

It's called the HONC rule, or sometimes known as HONC 1234 rule. The number refers to the number of bonds each of the element makes: Hydrogen makes 1 bond, Oxygen makes 2 bonds, Nitrogen makes 3 bonds and Carbon makes 4 bonds.

Explanation:

Answer:

16.8g

Explanation:

mass is equal to density times volume

so, if density = 2.7 and volume = 6.2

just do 2.7x6.2

which gives you 16.74