a structural ____________ is one of several isomers in which the atoms of each molecule are arranged in a different structural order.

Answer:

please send the picture otherwise we won't be able to answer

Answer

Iron powder

Explanation

The one with the highest surface area will react with oxygen the fastest.

This is because if the surface area of a reactant is increased; more particles are exposed to the other reactant, and there is a greater chance of particles colliding, which leads to more successful collisions per second. Hence the rate of reaction increases.

The one with the highest surface area is iron powder.

Fogging a mirror with your breath is a physical change because it involves a phase change of water vapor condensing and adsorbing to the mirror surface. Phase changes are physical changes.

Breaking a bone is a physical change insofar as we're focusing on the  "breaking" part.

Mending a broken bone, however, is a different story. Bones are living things: They consist of tissues that in turn consist of cells. The actual mending process involves some very complicated biochemistry. Suffice it to say that mending a broken bone would be a chemical change.

Burning paper is a chemical change. Burning anything implies combustion, which is a chemical reaction where some fuel is oxidized (usually by oxygen gas, producing carbon dioxide gas and water vapor).

Slicing potatoes for fries is a physical change. You can slice, dice, smash, mash, stretch, bend, compress, or grind a potato: What you will have is still a potato (okay, there are some chemical changes going on as you're rupturing cells in the process, causing them to release their contents which may participate in chemical reactions). But the key, again, is that cutting up some material doesn't fundamentally change the chemical identity of that material.

Mixing sugar with coffee actually involves two physical processes: the mixing and the (presumed) solvation of the solid sugar particles as they dissolve into the coffee. In either case, either mixing or dissolving would be a physical change. The sugar molecules are still in the coffee and are chemically unchanged.

Frying chicken is a chemical change. In fact, frying chicken likely entails several different types of chemical changes. The common thread among them is that frying involves breaking chemical bonds in and on the chicken by the addition of thermal energy, and new chemical bonds end up being formed. That's the hallmark of a chemical change.

A nail rusting is a chemical change. Rusting is an electrochemical process; the familiar corrosion of iron into rust is, at bottom, a chemical reaction where iron reacts with oxygen to form iron oxides (often catalyzed by the presence of water and salts).

A paper ripping is analogous to slicing potatoes: it's a physical change. If you ripped one sheet of paper into two halves, each half would retain all the chemical properties of the original sheet.

Likewise, wood burning is analogous to burning paper, and as such is a chemical change. Again, combustion is a chemical process.

As we said earlier with sugar in coffee, mixing in itself is a physical process. While it may seem like you've permanently changed the nature of the water by dyeing it with food coloring, the molecules comprising the food coloring are simply dispersed within the vast sea of water molecules. There are no intramolecular bonds that are broken or formed; the chemical identities of all the substances here are preserved. So, this is a physical change.

Food molding (rotting) is a chemical change. Rotting is biochemical decomposition: the chemical bonds that make up the food are broken down by enzymes released by the mold.

Writing on paper, whether it be with a pen, pencil, crayon, or marker, is a physical change. The molecules from the writing instrument are physically stuck to the paper. But unless you're writing on paper by, say, burning letters onto it, there are no chemical changes occurring when the writing instrument meets the paper.

As with writing on paper, dyeing fabric can be a physical change. The dye consists of molecules that interact with light in a way that we perceive a certain color. When dyeing fabric, these molecules are transferred and fixed into the fabric by adsorption, absorption, and other intermolecular phenomena. But the molecules of the dye (and the molecules in the fabric) don't experience any breaking and forming of bonds. All of the substances involved retain their chemical identities.

However, it's possible that, depending on the dye, there may be chemical changes involved. Some dyes, appropriate named "reactive dyes," undergo chemical reactions with their substrate (which, in this case, would be the fabric), or dyes may be used that undergo chemical reactions with one another, both of which would constitute chemical changes. And it can depend on what you mean by "dyeing": Bleaching a colored shirt can technically be conceived of as "dyeing" the shirt white, and this process involves cleavage of bonds within the color-producing molecules in the fabric by reacting with the molecules in the bleach.

So, for dyeing fabric, it can be a physical or chemical change depending on the dye.  

We are going to assume that the gas mentioned behaves like an ideal gas. The equation that describes the behavior of an ideal gas is as follows:

Where,

P is the pressure of the gas, 358kPa

V is the volume of the gas, 14.0L

R is the gas constant, 8.31 L kPa/mol K

T is the temperature of the gas, 269K

Now, we will clear the number of moles, n.

We replace the known data:

Answer: In the sample of gas there are 2.24 moles

As a general partnership, Acme Chemical Consultants is considered a legal entity separate from its individual partners. general partnership does not provide limited liability protection to its partners.

The partners of Acme Chemical Consultants can be held personally liable for the actions and obligations of the partnership. When the partnership discharges a pollutant prohibited by the EPA, the firm, as a legal entity, will be held responsible for the violation. The EPA has the authority to impose fines and penalties on Acme Chemical Consultants for its actions. The fines levied by the EPA would typically be imposed on the partnership itself, rather than the individual partners.

It is important to note that while the firm is primarily liable for the resulting fine, in certain circumstances, the partners of Acme Chemical Consultants may still be held personally liable if the firm does not have adequate assets to cover the fines. Personal liability of the partners would generally come into play if the partnership is unable to satisfy the imposed fines and the partners are deemed responsible for paying the remaining amount from their personal assets.

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The statement you provided refers to the determination of the van't Hoff factor (i) for strong electrolytes. The van't Hoff factor represents the number of ions produced per mole of solute dissolved in a solution.

For example, when calcium chloride (CaCl2) dissolves, it dissociates into three ions: one Ca2+ ion and two Cl- ions. Therefore, the van't Hoff factor (i) for CaCl2 is 3 because it produces three ions per mole of solute dissolved.

Similarly, when ammonium phosphate (NH4)3PO4 dissolves, it dissociates into four ions: three NH4+ ions and one PO43- ion. Thus, the van't Hoff factor (i) for (NH4)3PO4 is 4 because it yields four ions per mole of solute dissolved.

The van't Hoff factor is essential in various calculations related to colligative properties, such as boiling point elevation and freezing point depression, where it is used to account for the number of particles in solution.

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Answer:

A is its answer

Explanation:

Fan uses electrical energy and makes it to mechanical energy by rotating

Same is with the drill

Trampoline does not use electrical energy

Lamp uses electrical energy but it converts it into light energy and heat energy

So A is the answer

Answer:

Its either B or D. I personally would go with B

Explanation:

A food web describes a system that is made up of a community of organisms and their environment. Therefore, option B is correct.

A food web is a diagram that shows what is eaten by what in an ecological community and how food chains naturally connect to one another. Consumer-resource system is another term for the food web.

A food web is a comprehensive account of the species that make up a community and their interactions with one another. It demonstrates how energy is moved along food chains that are connected to other food chains.

The study of top-down or bottom-up control of community structure can be done using food webs. The energy exchange between primary producers and primary consumers (herbivores) and between primary consumers and secondary consumers is shown through food webs (carnivores).

Thus, option B is correct.

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Answer:

‘many parts’

Explanation:

I remember learning this in last year AP Chemistry

According to Charle's law equation, the volume of a sample of carbon dioxide will be 684.6 mL and the temperature will be 283.60 K.

According to Charles' Law, the volume of a gas container with a certain amount of gas within is precisely proportional to the temperature when the pressure is constant.

\(V_{1}\) = 684.6 mL

\(V_{2}\) = 933.9 mL

\(T_{1}\) = ?

\(T_{2}\) = 387 K

Using Charle's law equation

\(\frac{684.6}{T_{1} } = \frac{933.9}{387}\)

\(T_{1} = \frac{2,64,862.8}{933.9}\)

\(T_{1} = 283.60 K\)

According to Charle's law equation, the temperature at 684.6 mL volume was 283.60 K.

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Answer:

Sodium chloride

Explanation:

There are several salts in seawater, but the most abundant is ordinary table salt or sodium chloride (NaCl). Sodium chloride, like other salts, dissolves in water into its ions, so this is really a question about which ions are present in the greatest concentration. Sodium chloride dissociates into Na+ and Cl- ions.

The gram-formula mass of the product in the given reaction is 201.8g.

Gram Formula mass is the atomic mass of one mole of an element or a molecular compound, or an ionic compound.

To calculate the gram formula mass of a compound, the following applies;

According to this question, propene reacts with bromine to produce bromo propane with the molecular formula; C₃H₆Br₂.

Gram formula mass = 12(3) + 1(6) + 79.9(2) = 201.8g

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Answer:

NO2

Explanation:

Gases are known to deviate from ideal gas behavior as a result of intermolecular interaction between gas particles. The greater the magnitude of such intermolecular interaction, the greater the degree of deviation of the gas from the ideal gas law.

Now given that CO2 has dipoles that cancel out, the molecule is not really polar because it has no dipole moment. This is unlike NO2 that has a dipole moment and greater intermolecular interaction.

For the reason stated above, NO2 deviates more from ideal gas behaviour compared to CO2.

CO2 has dipoles that cancel out so the molecule is not really polar because it has no dipole moment. NO2 has a dipole moment and greater intermolecular interaction. NO2 deviates more from ideal gas behavior compared to CO2.

Answer: A row is horizontal and a group is vertical on the periodic table.

The molecule expand to relieve steric strain before undergoing torsion to a non-planar structure in order to have several resonating structures.

It should be noted that a molecule simply mean the group of atoms that are bonded together that represents the smallest fundamental unit if the chemical compound.

It should be noted that structures containing fused benzene rings have extensive conjugation. Due to this, they can undergo resonance.

This is vital in decreasing the overall energy of the molecule and helps increase its stability. When there's a change in torsion angle to relieve the steric strain, the molecule won't be planar, hence, the energy will increase and the stability will reduce.

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Sulfur is not nearly as electronegative as oxygen so that hydrogen sulfide is not nearly as polar as water. Because of this, comparatively weak intermolecular forces exist for H2S and the melting and boiling points are much lower than they are in water.

The boiling point of hydrogen sulfide is low because the oxygen atom was stronger electronegative than that of the Sulphur atom, water would be more polar than hydrogen sulphide.

If a molecule does have more positive charges on one end than negative charges on the other, an electrical pole has been created. This is how polar molecules are typically formed.

What is boiling point?

The temperature where a liquid's vapor pressure reaches the pressure around it as well as the liquid transforms into a vapor is known as the boiling point of a substance.

The boiling point of hydrogen sulfide is low because the oxygen atom was stronger electronegative than that of the Sulphur atom, water would be more polar than hydrogen sulphide. Additionally, hydrogen sulphide has a lesser melting point as well as boiling point than water due to poor intermolecular forces (dipole forces, Vander Waal's forces).

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Answer:

The earth-atmosphere energy balance is the balance between incoming energy from the Sun and outgoing energy from the Earth. When it reaches the Earth, some is reflected back to space by clouds, some are absorbed by the atmosphere, and some is absorbed in the Earth's surface. ...

Explanation:

The percent by volume of ethanol 2.50 mL of ethanol is added to 50 mL of water is 25%. The percent by volume of ethanol is 50%.

The volume of the solute divided by the total volume of the solution, multiplied by 100%, is a method to express the concentration of a chemical solution as a percentage by volume. Volume percent (vol%) and percent v/v are other names for it. Percent by volume is a unitless number because the volume units cancel out.

To find the percent by volume of ethanol when 25 mL of ethanol is added to enough water to make 100.0 mL of solution, we need to calculate the total volume of the solution first.

Total volume = 25 mL (ethanol) + (100 mL - 25 mL) = 100 mL

Now we can calculate the percent by volume of ethanol:

% by volume of ethanol = (25 mL / 100 mL) x 100% = 25%

Therefore, the percent by volume of ethanol in the solution is 25%.

To find the percent by volume of ethanol when 50 mL of ethanol is added to 50 mL of water, we can again calculate the total volume of the solution first.

Total volume = 50 mL (ethanol) + 50 mL (water) = 100 mL

Now we can calculate the percent by volume of ethanol:

% by volume of ethanol = (50 mL / 100 mL) x 100% = 50%

Therefore, the percent by volume of ethanol in the solution is 50%.

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Answer:

Acting like a highly reflective blanket, the cryosphere protects Earth from getting too warm. Snow and ice reflect more sunlight than open water or bare ground. Changes in snow and ice cover affect air temperatures, sea levels, ocean currents, and storm patterns all over the world.

Explanation: Hope this answers your question

Answer:74

Explanation:

Answer:

I believe Tungsten has 2 valence electrons.

Explanation:

Hope this helps!

Answer:

Explanation

hope this helps!

Density function: f(x) = 1/10, for 110 ≤ x ≤ 120, and f(x) = 0 otherwise.

Mean: μ = 115.

Variance: σ^2 = 25/3.

Probability: P(112 < X < 115) = 0.3.

Given that the melting point X is uniformly distributed over the interval [110, 120], we can find the density function, mean, variance, and probability as follows:

1. Density function:

Since X is uniformly distributed, the density function f(x) is constant within the interval [110, 120] and zero outside that interval. To find the density function, we need to determine the height of the constant density.

The total length of the interval is 120 - 110 = 10.

Since the density function is constant, the area under the density function curve must be equal to 1.

Therefore, the height of the constant density is 1 divided by the length of the interval: f(x) = 1/10, for 110 ≤ x ≤ 120, and f(x) = 0 otherwise.

2. Mean:

The mean (μ) of a uniform distribution is the average of the endpoints of the interval. In this case, the mean is (110 + 120) / 2 = 115.

3. Variance:

The variance (σ^2) of a uniform distribution is calculated using the formula: σ^2 = (b - a)^2 / 12, where a and b are the endpoints of the interval. In this case, the variance is (120 - 110)^2 / 12 = 10^2 / 12 = 100/12 = 25/3.

4. Probability:

To find P(112 < X < 115), we need to calculate the area under the density function curve between the points 112 and 115.

Since the density function is constant within the interval [110, 120], the probability is equal to the ratio of the length of the interval [112, 115] to the length of the entire interval [110, 120].

The length of the interval [112, 115] is 115 - 112 = 3.

The length of the entire interval [110, 120] is 120 - 110 = 10.

Therefore, P(112 < X < 115) = (3 / 10) = 0.3.

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Answer:

3 we have three states of matter

Answer:

We have THREE (3) states of matter namely;

*Solid state

*Liquid state

*Gaseous state

It is clear from the tabular data that, the monkeys in troop 2 were better to avoid predators and more of them  were able to reproduce. Hence, option D is correct.

In the biosphere, not all living things are fit to survive for a longer life time. Most of them are pray of other higher level animals. Some organisms adopt some strategies to hide from their predators and they can survive more.

It is clear from the table that, the monkeys residing in the ground are more prone to the attacks by their predators. Whereas monkeys living in trees can survive more.

In each year the survival rate is increasing for both troop. However the more number of monkeys which can sustain their population is in troop 2. Therefore, option D is correct.

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Answer:

Formaldehyde(CH\(_{2}\)O) or methanal is your answer.

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question we have

mass = 2.54 × 200

We have the final answer as

Hope this helps you

Answer: 1) \(2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O\)

2) \(2C_4H_{10}+13O_2\rightarrow 8CO_2+10H_2O\)

3) \(2C_8H_{18}+25O_2\rightarrow 16CO_2+18H_2O\)

4)\(2C_{10}H_{22}+31O_2\rightarrow 20CO_2+22H_2O\)

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.

The balanced chemical reactions will be:

1) Ethane + Oxygen = Carbon Dioxide + Water : \(2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O\)

2) Butane + Oxygen = Carbon Dioxide + Water : \(2C_4H_{10}+13O_2\rightarrow 8CO_2+10H_2O\)

3) Octane + Oxygen = Carbon Dioxide + water: \(2C_8H_{18}+25O_2\rightarrow 16CO_2+18H_2O\)

4) Decane + Oxygen = Carbon Dioxide + Water :  \(2C_{10}H_{22}+31O_2\rightarrow 20CO_2+22H_2O\)

Answer:

The difference between a hot cup of water and a cold one in terms of thermal energy can be described as the amount of heat energy that is present in each cup. The hot cup of water contains more thermal energy than the cold one due to its higher temperature. This means that the hot cup has more energy to transfer to its surroundings, and will cool down faster than the cold cup. The thermal energy in a cup of water is related to the temperature, with hotter water having a higher thermal energy than colder water.

Explanation: