Cual es el quebrado que resulta duplicado si se resta terminos la cuta parte del numerador

Matching the solutions with the appropriate letters, we have:

0.147 m CuSO4 - C

0.205 m Ni(NO₃)₂ - B

8.75 × 10⁻² m Cr(CH₃COO)₃ - D

0.380 m ethylene glycol - A

Based on the information provided, we need to match the given aqueous solutions with the appropriate letter from the column on the right. The options are:

A. Highest boiling point

B. Second highest boiling point

C. Third highest boiling point

D. Lowest boiling point

Let's analyze each solution and determine their boiling points:

0.147 m CuSO₄ (copper sulfate) - This is an ionic compound and will dissociate into Cu²⁺ and SO₄²⁻ ions in water. As an electrolyte, it will exhibit colligative properties, including an increase in boiling point. Therefore, this solution would have the third highest boiling point. So the match is C.

0.205 m Ni(NO₃)₂ (nickel nitrate) - Similar to the previous solution, this is also an ionic compound and will dissociate into Ni²⁺ and NO³⁻ ions in water. It will exhibit colligative properties, resulting in a higher boiling point. This solution would have the second highest boiling point. So the match is B.

8.75 × 10⁻² m Cr(CH₃COO)₃ (chromium(III) acetate) - This is also an ionic compound and will dissociate into Cr³⁺ and CH₃COO⁻ ions in water. Like the previous solutions, it will exhibit colligative properties, leading to an increase in boiling point. This solution would have the lowest boiling point. So the match is D.

0.380 m ethylene glycol - Ethylene glycol is a nonelectrolyte, and it does not dissociate into ions in water. Therefore, it does not exhibit colligative properties to the same extent as ionic compounds. However, it still has a significant effect on the boiling point due to its high boiling point itself. Ethylene glycol has the highest boiling point among the given options. So the match is A.

Matching the solutions with the appropriate letters, we have:

0.147 m CuSO₄ - C

0.205 m Ni(NO₃)₂ - B

8.75 × 10⁻² m Cr(CH₃COO)₃ - D

0.380 m ethylene glycol - A

To know more about boiling points:

https://brainly.com/question/31042597

#SPJ4

The molar mass of a compound is the sum of the atomic masses of all the atoms present in one molecule of the compound. the molar mass of manganese hydroxide is 88.94 g/mol.

To calculate the molar mass of manganese hydroxide, we need to find the atomic masses of each of the elements and add them up in the correct proportions.

The atomic mass of manganese (Mn) is 54.94 g/mol.

The atomic mass of hydrogen (H) is 1.01 g/mol, and the atomic mass of oxygen (O) is 16.00 g/mol.

The formula for manganese hydroxide is Mn(OH)₂, which means there are two hydroxide ions (OH⁻) present for every one manganese atom.

To calculate the molar mass of manganese hydroxide, we add up the atomic masses of all the atoms present in one molecule of the compound: Molar mass of Mn(OH)₂ = (atomic mass of Mn) + 2(atomic mass of O) + 2(atomic mass of H) = 54.94 g/mol + 2(16.00 g/mol) + 2(1.01 g/mol) = 88.94 g/mol

Therefore, the molar mass of manganese hydroxide is 88.94 g/mol.

For more questions on manganese hydroxide

https://brainly.com/question/15516767

#SPJ8

Answer:

The first law of thermodynamics doesn't actually specify that matter can neither be created nor destroyed So yes we can create matter because matter is every where buildings ,structures etc. So the answer is yes!

Explanation:

                         Hope this helped!ヾ(•ω•`)o❤

They American Academy of Sleeping Management estimates that caffeine has a half-life of up to 5 hours. The duration it takes for an amount of a material to reach its half-life.

Describe caffeine.

Among other goods, caffeine can be found in espresso, tea, cola, leaf extract, and mate. Although it has numerous other purposes, caffeine is most frequently used to increase mental alertness. For the treatment of migraine headaches, caffeine is administered orally or rectally together with analgesics (such aspirin and paracetamol) and a substance called ergotamine.

Is caffeine a stimulant of the central nervous system?

The main ingredient in coffee, tea, and chocolate is caffeine, which stimulates the nervous system (CNS) in people. Even in large amounts, caffeine consumption has not been linked to

To know more about caffeine visit:

https://brainly.com/question/9255669

#SPJ4

Answer:

Explanation:

Omg so exited!

: PM2.5 is defined as the mass concentration of particles in the air less than or equal to 2.5 micrometers in diameter.Question 15: False, carbon dioxide (CO2) is not considered a criteria air pollutant.

Question 16: The closest answer is 50%, but the exact percentage is not provided in the question.Question 17: The term "photochemical smog" is most synonymous with ozone (O3), which is a criteria air pollutant.Question 18: True, attainment of ambient air quality standards requires that measured concentrations at all monitoring stations within an air district are below ambient air standards.

Question 14 asks about the definition of PM2.5. PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 micrometers. It represents the mass concentration of particles suspended in the air, which are small enough to be inhaled into the respiratory system and can have adverse health effects.

Question 15 states whether carbon dioxide (CO2) is a criteria air pollutant. Criteria air pollutants are a set of pollutants regulated by environmental agencies due to their detrimental impact on air quality and human health. However, carbon dioxide is not considered a criteria air pollutant because it does not directly cause harm to human health or the environment in the same way as pollutants like ozone or particulate matter.

Question 16 asks about the percentage of carbon monoxide (CO) emissions from mobile sources in Santa Clara County. While the exact percentage is not provided in the question, the closest answer option is 50%. However, it is important to note that the precise percentage may vary depending on specific local conditions and emissions sources.

Question 17 inquires about the criteria air pollutant most synonymous with the term "photochemical smog." Photochemical smog is primarily associated with high levels of ground-level ozone (O3). Ozone is formed when nitrogen oxides (NOx) and volatile organic compounds (VOCs) react in the presence of sunlight, creating a hazy and polluted atmospheric condition.

Question 18 addresses the concept of "attainment" of ambient air quality standards. To achieve attainment, measured concentrations of pollutants at all monitoring stations within an air district must be below the established ambient air quality standards. This ensures that the air quality in the given area meets the required standards for protecting human health and the environment.

Learn more about mass concentration  here:- brainly.com/question/23437000

#SPJ11

When a smoker inhales from a cigarette, the temperature at the tip can reach approximately 600-900 degrees Fahrenheit (315-480 degrees Celsius).

This high temperature is a result of the combustion process that occurs as the tobacco is burned. As the smoker draws in air, oxygen reacts with the burning tobacco, causing it to reach such extreme temperatures. The heat generated at the tip of the cigarette is a reflection of the intense chemical reactions taking place during smoking. It is important to note that these high temperatures contribute to the release of harmful substances, including carcinogens and toxic chemicals, which are then inhaled into the smoker's lungs.

The adverse health effects associated with smoking are well-documented, making it crucial for individuals to quit smoking or avoid tobacco use altogether to safeguard their well-being.

Learn more about combustion process here : brainly.com/question/26599876

#SPJ11

Glycine is the N-terminal residue and Serine is the C-terminal residue.

From the given polypeptide Gly-Tyr-Gly-Phe-Met-Ser, the correct statements are:

Glycine is the N-terminal residue: This is correct because glycine is the first amino acid in the sequence, making it the N-terminal residue.

Serine is the C-terminal residue: This is correct because serine is the last amino acid in the sequence, making it the C-terminal residue.

Methionine is the N-terminal residue: This statement is incorrect. Although methionine is present in the sequence,

it is not the first amino acid. Glycine is the first amino acid, so it is the N-terminal residue.

Therefore, the correct statements are:

Glycine is the N-terminal residue.

Serine is the C-terminal residue.

Learn more about Glycine from the given link

https://brainly.com/question/170426

#SPJ11  

Answer:

When moving from left to the right of a period, the number of electrons increases and the strength of shielding increases. As you move across period the number of shells remain same, the shielding effect will also remain constant.

Explanation:

Answer:

25

Explanation:

i think not sure ..................

Answer: potential energy

Explanation: Even when an object is sitting still, it has energy stored inside that can be turned into kinetic energy (motion).

Answer:

Diffusion is driven by differences in concentration. When chemical substances such as perfume are let loose in a room, their particles mix with the particles of air. Diffusion in gases is quick because the particles in a gas move quickly. It happens even faster in hot gases because the particles of gas move faster.

At physiological pH, proteins carry a negative charge on their carboxyl terminals. The carboxyl group (-COOH) of an amino acid in a protein will be largely deprotonated at physiological pH, which is around 7.4.

At physiological pH, the side chains of many biological molecules, including proteins, include functional groups that are both positively and negatively charged.  At pH values below their pI, proteins have a net positive charge, while at pH levels above their pI, they have a net negative charge.

Aspartic acid and glutamic acid are two amino acids that are negatively charged at physiological pH (between 7.35 and 7.45).

To know more about amino acid visit:-

https://brainly.com/question/15687833

#SPJ4

Answer:

36 atoms

Explanation:

2C8H18

meaning

2 multiples 18 giving 36atoms.

Answer:

B1: 24

Explanation:

3 times 8 equals 24 atoms.

The adjacent nucleotides are bound to each other through a phosphodiester bond in a nucleic acid.

Nucleic acid is a biopolymer made up of nucleotide monomers that make up nucleic acid chains. The nucleotide's three components are a five-carbon sugar, a phosphate group, and a nitrogenous base. Nucleic acids are present in all living cells, including viruses and bacteria, and they play a critical role in storing, transmitting, and expressing genetic information. RNA and DNA are two types of nucleic acids.

The phosphate group in one nucleotide forms a phosphodiester bond with the hydroxyl group on the sugar molecule of the next nucleotide in line in nucleic acids. This reaction is carried out by removing a molecule of water, resulting in a strong covalent bond between two nucleotides. These bonds make up the sugar-phosphate backbone of a nucleic acid chain, which is fundamental to its structure.

Learn more about Nucleic acid: https://brainly.com/question/17701344

#SPJ11

Due to the creation of complicated potassium aluminate, this reaction is complex.

The FDA classifies potassium alum as a chemical that is generally acknowledged as safe (GRAS). It is an inorganic salt with the formula AlK(SO4)2, sometimes known as potassium aluminum sulfate.

Nowadays, potassium sulfate is added to a concentrated solution of aluminium sulfate to create potassium alum in an industrial setting. Typically, sulfuric acid is used to process minerals like cryolite, bauxite, and alum schist to produce aluminum sulfate.

Breif:

2 Al ( s ) Aluminium + 2 KOH ( aq ) Potassium hydroxide + 6 H 2 O ( l ) Water → 2 K [ Al ( OH ) 4 ] ( aq ) Tetrahydroxoaluminate ( III ) or Potassium aluminate + 3 H 2 ( g ) Hydrogen.

To know more about potassium aluminate visit:

https://brainly.com/question/11497057

#SPJ4

a) In the first cell, Al would be oxidized to Al³⁺ and Ag⁺ would be reduced to Ag. In the second cell, Zn would be oxidized to Zn²⁺ and Ni²⁺ would be reduced to Ni. The overall reaction would be Al + 3Ag⁺ + 3Zn²⁺ + Ni²⁺ -> 3Ag + Al³⁺ + 3Zn²⁺ + Ni²⁺. The total potential would be the sum of the individual cell potentials, which can be calculated using the standard reduction potentials of each half-reaction.

b) If the first cell acts as a battery to power the second as an electrolytic cell, then the direction of electron flow is reversed. This means that the Ag and Ni electrodes would be plated, while the Al and Zn electrodes would be oxidized. The total potential would be the same as in part (a), but with a negative sign.

c) The amount of metal plated in a cell is proportional to the amount of charge that passes through the cell. Since the voltaic cell produces a positive potential, it acts as the anode and loses mass. Using the balanced reaction from part (a), we can see that the number of moles of electrons transferred is 3 moles of electrons for every mole of Al that is oxidized. Therefore, the number of moles of Al that is oxidized is 3.70/27 = 0.137 moles. Using the stoichiometry of the reaction, we can see that 0.137 moles of Ni would be plated in the electrolytic cell.

To learn more about electrodes refer to:

brainly.com/question/17060277

#SPJ4

Answer: F2 is covalent and KCl is ionic

Explanation:

Answer:

sharing of valence electron pairs

This form, which is frequently used to depict the bonding between atoms in a molecule, is also known as the Lewis structure or the Lewis dot diagram.

An electron is defined as a subatomic particle of negative charge, which surrounds the nucleus of the atom (there are neutrons and protons).

The localized electron model assumes that a molecule is bonded through the sharing of valence electron pairs. This model is also known as the Lewis structure or the Lewis dot diagram, which is commonly used to represent the bonding between atoms in a molecule. In this model, each atom's valence electrons are shown as dots, and the shared electron pairs between atoms are represented by a line. The localized electron model helps to explain the formation of covalent bonds in molecules.

Learn more about electrons on:

https://brainly.com/question/13998346

#SPJ11

Answer:

Explanation:

Q1) as we know that moles=given mass/molar mass

     mass of 5 moles of Mg is

mass =moles*molar mass

mass=5*24

mass=120 g

mass of 5 moles of CaCO3 is

mass= moles*molar mass

mass=5*100=500

Q2) number of atoms in 10 g Na

first we need number of moles of sodium

moles =mass/molar mass

moles=10/23=0.43

now we know that moles=number of atoms /avogadro number

for number of atom the formula become

number of atom=moles*avogadro number

number of atom=0.43*6.023*10^23=2.6*10^23

Q3)number of molecule in 10 g of NaCl

again we need number of moles of NaCl

moles=given mass/molar mass

moles=10/58.5=0.17

now number of molecules=moles*avogadro number

number of molecules=0.17*6.023*10^23=1.02*10^23

Q4) avogadro number is the number of particles(atoms,molecules,ions) present in one mole of a substance its value is 6.023*10^23

Q5)Number of atoms in 4g of oxygen

again we need number of moles of oxygen

moles=mass/molar mass

moles=4/16=0.25

now number of atoms=moles*avogadro number

number of atoms=0.25*6.023*10^23 =1.5*10^23

The vapor pressure of ethanol at 35.1°C is approximately 7.67 torr. To solve this problem, we can use the Clausius-Clapeyron

The Clausius-Clapeyron equation:

ln(P2/P1) = -(ΔH_vap/R) * (1/T2 - 1/T1)

where P1 and P2 are the vapor pressures at temperatures T1 and T2, respectively, ΔH_vap is the heat of vaporization, R is the gas constant, and ln denotes the natural logarithm.

We can first convert the given temperature of 78.4 °C to Kelvin:

T1 = 78.4 + 273.15 = 351.55 K

We can then plug in the given values to find ln(P2/P1):

ln(P2/760) = -(38.56 * 10³ J/mol / 8.314 J/mol-K) * (1/308.25 K - 1/351.55 K)

Simplifying, we get:

ln(P2/760) = -9.995

Solving for P2, we get:

P2/760 = \(e^(^-^9^.^9^9^5^)\)

P2 = 7.67 torr

Learn more about pressure: https://brainly.com/question/12971272

#SPJ11

The mass of iron should be produced if 11. 0g of aluminum reacts with 30. 0g of iron (III) oxide is 10.50 g.

To determine the mass of iron produced, we need to use stoichiometry and the balanced chemical equation for the reaction between aluminum and iron(III) oxide.

The balanced chemical equation is:

2 Al + \(Fe_{2} O_{3}\) →  + 2 Fe

From the equation, we can see that 2 moles of aluminum react with 1 mole of iron(III) oxide to produce 1 mole of iron.

First, we need to determine the limiting reactant by comparing the number of moles of aluminum and iron(III) oxide.

Moles of aluminum = mass of aluminum / molar mass of aluminum

= 11.0 g / 26.98 g/mol (molar mass of aluminum)

= 0.407 mol

Moles of iron(III) oxide = mass of iron(III) oxide / molar mass of iron(III) oxide

= 30.0 g / 159.69 g/mol (molar mass of iron(III) oxide)

= 0.188 mol

Since the stoichiometric ratio of aluminum to iron(III) oxide is 2:1, we can see that 0.188 mol of iron(III) oxide requires 0.376 mol of aluminum. However, we have only 0.407 mol of aluminum, which is in excess.

Therefore, the limiting reactant is iron(III) oxide. The amount of iron produced is determined by the moles of iron(III) oxide used. Moles of iron = 0.188 mol (same as moles of iron(III) oxide)

Now we can calculate the mass of iron produced using its molar mass (55.85 g/mol):

Mass of iron = Moles of iron × Molar mass of iron

= 0.188 mol × 55.85 g/mol

= 10.50 g

Therefore, the mass of iron produced is approximately 10.50 grams.

Know more about the Balanced chemical equation here:

https://brainly.com/question/13451900

#SPJ8

Taking into account the Charles' law, the temperature of the gas if the volume drops to 75.0 L is 246 K or -27 C.

Charles' law establishes the relationship between the temperature and the volume of a gas when the pressure is constant. This law says that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. That is, the volume is directly proportional to the temperature of the gas.

Mathematically, Charles' law is a law that says that when the amount of gas and pressure remain constant, the ratio between volume and temperature will always have the same value:

\(\frac{V}{T}=k\)

Considering an initial state 1 and a final state 2, it is fulfilled:

\(\frac{V1}{T1}=\frac{V2}{T2}\)

In this case, you know:

Replacing in Charles's law:

\(\frac{100 L}{328 K}=\frac{75 L}{T2}\)

Solving:

\(T2x\frac{100 L}{328 K}=75 L\)

\(T2=\frac{75 L}{\frac{100 L}{328 K}}\)

T2= 246 K= -27 C

Finally, the temperature of the gas if the volume drops to 75.0 L is 246 K or -27 C.

Learn more about Charles' law:

https://brainly.com/question/4147359

#SPJ1

Answer:

The atoms are vibrating in place.

Explanation:

One of the properties of an ionic substance is the possession of a crystalline structure. As Gerry observed the salt under a microscope, he discovered that it has a crystalline structure. Crystalline salts are all ionic in nature, hence the salt observed by Gerry is an ionic salt.

Solids containing a definite crystalline structure always has their particles vibrating in place. This is immediately evident as Gerry looks at the salt through a microscope.

Answer:

D.The atoms are vibrating in place

Explanation:

Answer:

1.51986 atm

Explanation:

You can also search "154 kPa to atm" and a converter will appear

Answer:

the answer is 0.21 g (B).

Explanation:

The answer is B, 0.21 g, because:

First, we need to calculate the initial concentration of calcium ions in the Ca(NO3)2 solution. To do this, we can use the formula:

moles of solute/volume of solution = concentration

We know that 100 mL of water was used to dissolve some Ca(NO3)2, but we don't know how many moles of Ca(NO3)2 were dissolved. Let's call this unknown quantity x.

So the initial concentration of calcium ions is:

moles of Ca2+/total volume of solution = x/(0.1 L) = (2x)/0.2 L = 10x M (since the solution is diluted to 0.2 L by adding 0.1 L of Na2SO4)

Next, we can use the Ksp expression for calcium sulfate:

Ksp = [Ca2+][SO42-]

We know that the Ksp value is 2.4 x 10^5 and the concentration of sulfate ions is 0.010 M (since 0.01 M Na2SO4 was added to the solution). We can use this information to calculate the concentration of calcium ions:

Ksp = [Ca2+][SO42-] = (x/(0.1 L))[0.010 M]

Solving for x, we get:

x = Ksp(0.1 L)/0.010 M = 2.4 x 10^5 (0.1 L)/0.010 M = 2.4 x 10^6 M

Finally, we can convert the concentration of calcium ions to the mass of Ca(NO3)2 dissolved in the initial solution:

mass = moles x molar mass = (10x M)(0.2 L)(164 g/mol) = 328x g

Substituting x = 2.4 x 10^6 M, we get:

mass = 328(2.4 x 10^6 g/mol) = 0.7872 x 10^9 g = 0.7872 g

Rounding to two significant figures, the answer is 0.21 g (B).

Answer:

D.4 types of molecules is yr ans.

stay safe healthy and happy.

Answer:

A water molecule consists of two hydrogen atoms bonded to an oxygen atom, and its overall structure is bent. This is because the oxygen atom, in addition to forming bonds with the hydrogen atoms, also carries two pairs of unshared electrons. All of the electron pairs—shared and unshared—repel each other.

Explanation:

Answer:

volume

Explanation:

Volume is the answer

Solid objects have mass and take up space. Since it is only common knowledge, there is no need for an experiment to demonstrate it. Anything with mass and space is considered to matter. A volume is a unit used to describe how much space a substance or thing takes up.

We are aware that gas will occupy any accessible space because it lacks a fixed volume or shape. Compare this to the behavior of a liquid, which, when its volume is less than that of the space it occupies, always has a distinct upper surface.

Every material takes up space. For instance, if we place a stone inside a glass that is entirely full of water, some water will spill out of the glass. This is due to the fact that the stone takes the place of the water in the glass.

To know more about volume, visit;

https://brainly.com/question/30681924

#SPJ6

The main reservoirs of the carbon cycle are the atmosphere, oceans, land (including vegetation and soils), and fossil fuels. In these reservoirs, carbon exists in both inorganic and organic forms.

The inorganic carbon cycle involves the exchange of carbon dioxide (CO2) between the atmosphere and oceans through processes like photosynthesis and respiration.

Organic carbon, on the other hand, is found in living organisms, dead organic matter, and soil organic matter. It is cycled through processes such as decomposition and consumption by organisms. The interactions between the inorganic and organic carbon cycles occur primarily in the biosphere, where photosynthesis converts inorganic carbon into organic carbon compounds. While inorganic carbon is primarily in the form of CO2, organic carbon is present in complex organic molecules. Both forms of carbon play crucial roles in energy transfer, nutrient cycling, and climate regulation.

Learn more about Carbon Cycle

brainly.com/question/13729951

#SPJ11