Which of the following species is best represented by a resonance hybrid having two contributing structures? A) nitric acid. B) nitride ion. C) nitrogen.

A. Fe3+. This is because Fe3+ has a higher charge than Ca2+ and Na+, which means it has a stronger attraction to the water molecules and therefore causes more disruption to the water's ability to vaporize.

Additionally, the concentration of Fe3+ ions would need to be much lower than Ca2+ and Na+ ions to have the same effect on the boiling point of water due to its higher charge.
The boiling point elevation depends on the number of ions present in the solution. In this case, if all ions have equal concentration, Fe3+ (A) will contribute most to elevating the boiling point of H₂O, because it has the highest charge and will produce more ions when dissolved in water.

Visit here to learn more about molecules brainly.com/question/19922822
#SPJ11

Answer: 6y-2

Explanation: If it is not equal to something, then it will just be plain old

6y-2. Unless you have to graph it...

Answer:

Because Democritus or Liucipius cannot demonstrate or proof their ideas as they did not have any equipment or any research to prove the existence of atoms.

Explanation:

John Dalton, Democritus and Leucipius are some of the greatest scientist and scholars of the past.

Democritus originally proposed or gave the idea of the of the composition of the matter of indivisible and tiny particles. John Dalton is credited for the beginning of the modern atomic theory.

Democritus believed that a matter is made up of atoms that can move about empty spaces. They are small, indestructible, solid, indivisible and of different shapes and sizes. Democritus proposed his idea at that time as there were no scientific advancement or instruments to prove his ideas about atoms.

Later on when science and scientific processes were advanced, Dalton was able to prove and proceed on the atomic model theory.

Democritus cannot prove his ideas as there were no instruments or advance scientific processes and so people felt his ideas as illogical. His proposals were based on his ideas.  

Answer:

Their speed = 69.9043 miles per hour

Their speed = 112.5 kilometers per hour

Explanation:

Answer:

here you go

Explanation:

5 elements and properties:

Boron- The chemical properties of boron are more similar to carbon and silicon than elements of its own group, although boron is more electron deficient. Boron has a high affinity for oxygen-forming borates, and reacts with water at temperatures above 100 °C to form boric acid and other boron compounds.

Carbon- As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. The most common isotope of carbon has 6 protons and 6 neutrons, and has an atomic mass of 12.0107 amu. Its ground state electron configuration is 1s22s22p2.

Nitrogen-  Nitrogen gas (chemical symbol N) is generally inert, nonmetallic, colorless, odorless and tasteless. Its atomic number is 7, and it has an atomic weight of 14.0067. Nitrogen has a density of 1.251 grams/liter at 0 C and a specific gravity of 0.96737, making it slightly lighter than air.

Oxygen- is the air you breath

Nickel- Nickel is a hard silver white metal, which forms cubic crystals. It is malleable, ductile, and has superior strength and corrosion resistance. The metal is a fair conductor of heat and electricity and exhibits magnetic properties below 345°C

5 compounds and properties:

Water - Formula: H2O = Hydrogen2 + Oxygen. ...

Hydrogen Peroxide - Formula: H2O2 = Hydrogen2 + Oxygen2 ...

Salt - Formula: NaCl = Sodium + Chlorine. ...

Baking Soda - Formula: NaHCO3 = Sodium + Hydrogen + Carbon + Oxygen3

Octane - Formula: C8H18 = Carbon8 + Hydrogen18

hope this helps

Answer:

If this is an idea gas then 1mol takes up 22.4L.

So, knowing how many L you have you can figure out how many  mole syou have by doing a simple equation:

\(\frac{1mol}{y} =\frac{22.4L}{925.4L}\)

Solve for y.

Then, since you know how many moles you have use the ptable https://ptable.com/#Properties to figure out the mass in grams.

NOTE: The ptable tells you that 1mol of H = 1g.....so this should be an easy calculation :) enjoy

Explanation:

composite volcanoes are tall,steep cones that produce explosive eruption. Shield volcanoes form very large,gently sloped mounds from effusive eruptions.

Answer:

Encourage readers to vary the design

Explanation:

Hg⁺ with I⁻ forms HgI

Hg⁺ with S²⁻ forms Hg₂S

Hg⁺ with CO₃²⁻ forms Hg₂CO₃

K⁺ with I⁻ forms KI

K⁺ with S²⁻ forms K₂S

K⁺ with CO₃²⁻ forms K₂CO₃

Answer:

The density of each piece is the same as that of the original block.

Explanation:

Options

The mass of each piece is the same as that of the original block.

The weight of each piece is the same as that of the original block.

The density of each piece is the same as that of the original block.

The volume of each piece is the same as that of the original block.

The correct answer would be that the density of each piece is the same as that of the original block.

The density is the ratio of the mass of a substance to the volume of the substance. This ratio is constant for all substances because the mass of any object varies proportionally with the volume of the object. The more the mass increases, the more the volume also increases, and vice-versa.

Answer:

The answer is, C. funnel

Explanation:

Based on the the relative strengths of the intermolecular attractions, the correct selections are:

a. C₃H₈ > CH₄

c. ICl > I₂

e. H₂Se > H₂O

g. CH₂Cl₂ > CH₃Cl

i. NOF > NOCl

To determine the substance with the higher boiling point based on the relative strengths of intermolecular attractions, we need to consider the types of intermolecular forces present in each substance. The stronger the intermolecular forces, the higher the boiling point.

a. C₃H₈ > CH₄: C₃H₈ (propane) has a higher boiling point than CH₄ (methane) because propane has a larger molecular size and exhibits stronger London dispersion forces due to increased electron-electron interactions.

c. ICl > I₂: ICl (iodine chloride) has a higher boiling point than I₂ (diatomic iodine) due to the presence of polar covalent bonds in ICl. The dipole-dipole interactions between the polar I-Cl bonds in ICl are stronger than the London dispersion forces in I₂.

e. H₂Se > H₂O: H₂Se (hydrogen selenide) has a higher boiling point than H₂O (water) because H₂Se molecules exhibit stronger London dispersion forces compared to H₂O, which has hydrogen bonding.

g. CH₂Cl₂ > CH₃Cl: CH₂Cl₂ (dichloromethane) has a higher boiling point than CH₃Cl (chloromethane) due to the presence of two chlorine atoms in CH₂Cl₂, which enhances the strength of London dispersion forces compared to the single chlorine atom in CH₃Cl.

i. NOF > NOCl: NOF (nitrogen monoxide fluoride) has a higher boiling point than NOCl (nitrogen monoxide chloride) because the fluorine atom in NOF forms a stronger hydrogen bond with nitrogen compared to the chlorine atom in NOCl, resulting in stronger intermolecular forces.

To know more about relative strengths, refer to the link below:

https://brainly.com/question/29732561#

#SPJ11

The compound with the formula CHCl3, also known as chloroform, was used as an anesthetic in earlier times but has been found to have serious side effects such as liver damage and respiratory issues.The compound with the chemical formula CHCl3 is called chloroform. Chloroform was indeed used as an anesthetic in the past due to its sedative properties. However, it has been largely phased out for medical use due to its potential serious side effects. Chloroform is known to be hepatotoxic and nephrotoxic, meaning it can cause damage to the liver and kidneys. It can also cause respiratory depression and may have carcinogenic properties. As a result, its use as an anesthetic has declined, and it is now primarily used as a solvent in some industrial and laboratory applications.

learn more about  Chloroform here:

https://brainly.com/question/14756968

#SPJ11

The work done in joules if the gas expands is zero.

The magnitude of work done when a gas expands is equal to the product of the pressure times the change in the volume of the gas. By definition, we can say that, one joule work done is done when a force of one newton is used to move an object to one meter.

For a gas transformation at constant temperature, if the pressure p is constant then the work done is equal to ;

W= p Δv

Δv = change in volume of the gas.

Δv= 5.8L- 1.7L (Given in question)

= 4.1 L = 4.1 * 10⁻³ m³

a) When the gas expands in vacuum, the pressure is zero: p=0 atm, so the work done is zero:

W= p Δv

=(0)(4.1)

= 0 joules

To know more about work done on gas, refer

https://brainly.com/question/28199359

#SPJ4

Bonds that possess between 5 and 50 ionic character are considered to be polar covalent bonds. Polar covalent bonds occur when two atoms with different electronegativities share electrons unequally.

This results in a partial positive charge on the less electronegative atom and a partial negative charge on the more electronegative atom. The greater the difference in electronegativity between the two atoms, the more polar the bond will be.

When the electronegativity difference is large enough (greater than 1.7), the bond is considered ionic, meaning that one atom has completely lost its electron(s) to the other atom. However, when the electronegativity difference is between 0.5 and 1.7, the bond is considered polar covalent.

In the case of bonds with between 5 and 50 ionic character, the electronegativity difference is not large enough for the bond to be considered fully ionic, but it is significant enough for the bond to be polar covalent. Therefore, bonds with between 5 and 50 ionic character are classified as polar covalent bonds.

Learn more about electronegativity here:

brainly.com/question/3393418

#SPJ11

The shortest covalent bond is the H-F bond. Therefore, option (A) is correct.

The electronegativity decreases down the group and the Fluorine is the most electronegative atom in the periodic table. The size of the atoms also increases as we go down the group.

The bond length of the hydrogen halides will follow the order HF < HCl < HBr < HI. The radius of the Iodine atom is the largest and to form a molecule, the hydrogen atom will be farthest as compared to all hydrogen halides.

The molecule with Fluorine will have the shortest bond length because its atom has the smallest size, making them attach very closely. So the covalent bond of hydrogen fluoride will be the shortest.

The relationship between bond length and bond strength is inverse in nature. The bond length of HI is the greatest, it will have the least bond strength. So the order for bond strength of the hydrogen halides is  HF > HCl > HBr > HI.

Learn more about hydrogen halides, here:

https://brainly.com/question/12115740

#SPJ1

Answer:

HOLY WOAH

Explanation:

YES

The levels of Po2 and Pco2 in the circulatory route are tightly regulated to ensure that oxygen is delivered to the tissues and carbon dioxide is removed from the body. This process involves the exchange of gases between the alveolar air, oxygenated blood, and tissue fluid, with each step corresponding to specific levels of Po2 and Pco2.

In the circulatory route, the oxygenated blood leaves the lungs and enters the arteries with a Po2 of 104 mm Hg and a Pco2 of 40 mm Hg. As it travels through the body, it delivers oxygen to the tissues and picks up carbon dioxide. As a result, the Po2 in the tissue fluid drops to 40 mm Hg, while the Pco2 rises to 46 mm Hg. This occurs because oxygen is being used up by the cells in the tissues, while carbon dioxide is being produced as a byproduct of cellular respiration.
Once the blood has picked up carbon dioxide and delivered oxygen to the tissues, it returns to the heart via the veins. The oxygenated blood then enters the lungs once again, where it unloads carbon dioxide and picks up oxygen from the alveolar air. At this point, the Po2 in the alveolar air is 95 mm Hg, while the Pco2 is 40 mm Hg. The oxygenated blood then leaves the lungs with a Po2 of 104 mm Hg and a Pco2 of 40 mm Hg, completing the circulatory route.
In summary, the levels of Po2 and Pco2 in the circulatory route are tightly regulated to ensure that oxygen is delivered to the tissues and carbon dioxide is removed from the body. This process involves the exchange of gases between the alveolar air, oxygenated blood, and tissue fluid, with each step corresponding to specific levels of Po2 and Pco2.

for more such question on circulatory route

https://brainly.com/question/23522081

#SPJ11

Answer:

thermal shock

Explanation:

the temperatures inside the glass jar should have continued to increase over time. Internal stresses due to uneven heating. This is also known as “thermal shock”.

In general, the thicker the glass, the more prone it will be to breaking due to the immediate differences in temperature across the thickness of glass.

Borosilicate glass is more tolerant of this, as it has a higher elasticity than standard silicon glass.

You may also note that laboratory test tubes and flasks are made with thinner walls, and of borosilicate glass, when designated for heating.

Answer:

Here's your answer

Explanation:

When we insert a burning matchstick near the mouth of gas jar the matchstick burns with a pop sound and produces a blue flame. This proves that the gas collected is hydrogen.

hope it helps

Answer:

Explanation:

                                             PCl₅    ⇄    PCl₃    +     Cl₂

                                           1 mole         1 mole        1 mole

molecular weight of  PCl₅ = 208.5

molecular weight of PCl₃  = 137.5

molecular weight of Cl₂  =       71

moles of PCl₅ = .0185

moles of PCl₃ = .0924

moles of Cl₂ = .1873

Total moles = .2982 moles

mole fraction of PCl₅ = .062

mole fraction of  PCl₃ = .31

mole fraction of Cl₂ = .628

If total pressure be P

partial pressure of  PCl₅ = .062 P

partial pressure of  PCl₃ = .31 P

partial pressure of  Cl₂ = .628 P

Kp = .31 P  x  .628 P /  .062 P

= 3.14 P

To calculate Total pressure P

PV = nRT

P x 4 x 10⁻³ = .2982 x 8.31  x 600

P = 371.7 x 10³

= 3.717 x 10⁵ Pa

Kp = 3.14 P = 3.14 x  3.717 x 10⁵ Pa

= 11.67 x 10⁵ Pa

Kp  = Kc x \(( RT )^{\triangle n}\)

\(\triangle n\) = 1

11.67 x 10⁵ = Kc x \(( 8.31\times 600 )^{1}\)

Kc = 234

Answer:

Mass = 26.8 g

Explanation:

Given data:

Mass of sodium hydroxide are required = ?

Mass of water = 232 g

Molarity of solution = 2.88 M

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

1 g = 0.001 L

232 g = 0.001 L× 232 =0.232 L

By putting values in molarity formula,

2.88 M = number of moles / 0.232 L

Number of moles = 2.88 M ×0.232 L

Number of moles = 0.67 mol

Mass of NaOH:

Mass = number of moles × molar mass

Mass = 0.67 mol × 40 g/mol

Mass = 26.8 g

Answer: 3.156 * 10^7

Explanation: I do not really understand your question. You answered it yourself!

Scientific notation shortens large numbers. The number right after the decimal point can only be between 1 and 9, which you did correctly. When converting to scientific notation, the exponent of ten is based on how many places you moved the decimal and the direction you moved it (left, positive; right, negative). In this case, the exponent of ten is a positive seven.

You did everything correctly :) Good job!

Answer: no water

Explanation:

Answer:

a substance that is a crystalline compound, contains no water

D. He is not an electrolyte.

An electrolyte is a medium containing ions that is electrically conducting through the movement of those ions, but not conducting electrons. This includes most soluble salts, acids, and bases dissolved in a polar solvent, such as water. Upon dissolving, the substance separates into cations and anions, which disperse uniformly throughout the solvent. Solid-state electrolytes also exist. In medicine and sometimes in chemistry, the term electrolyte refers to the substance that is dissolved. Electrically, such a solution is neutral. If an electric potential is applied to such a solution, the cations of the solution are drawn to the electrode that has an abundance of electrons, while the anions are drawn to the electrode that has a deficit of electrons. The movement of anions and cations in opposite directions within the solution amounts to a current. Some gases, such as hydrogen chloride (HCl), under conditions of high temperature or low pressure can also function as electrolytes.[clarification needed] Electrolyte solutions can also result from the dissolution of some biological (e.g., DNA, polypeptides) or synthetic polymers (e.g., polystyrene sulfonate), termed "polyelectrolytes", which contain charged functional groups. A substance that dissociates into ions in solution or in the melt acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, magnesium, and phosphate in a liquid phase are examples of electrolytes.

To know more about electrolyte please visit

https://brainly.com/question/31839783

#SPJ11

The number of years it will take for 570.7 mg ³H to decay to 0.56 mg ³H is approximately 103.1 years.

To determine the time it takes for 570.7 mg of hydrogen-3 (³H) to decay to 0.56 mg, we'll use the half-life formula:

N = N₀ * (1/2)^(t/T)
where:
N = remaining amount of ³H (0.56 mg)
N₀ = initial amount of ³H (570.7 mg)
t = time in years (unknown)
T = half-life (12.3 years)

Rearrange the formula to solve for t:

t = T * (log(N/N₀) / log(1/2))

Plugging in the values:

t = 12.3 * (log(0.56/570.7) / log(1/2))
t ≈ 103.1 years

It will take approximately 103.1 years for 570.7 mg of hydrogen-3 to decay to 0.56 mg.

Learn more about half-life here: https://brainly.com/question/29599279

#SPJ11