How Many Electrons Could Have The Following Set Of Quantum Numbers?. (2024)

Answer:

look at the photo........................

Answer:

C

Explanation:

We have that the the liquid is

C_2H_5OH (ethanolAnd at a condition of H_2SO4 as catalyst and temp 170

From the question we are told

A student wished to prepare ethylene gas by dehydration of ethanol at 140oC using sulfuric acid as the dehydrating agent.A low-boiling liquid was obtained instead of ethylene. What was the liquid, and how might the reaction conditions be changed to give ethylene

Ethylene formation

Generally the equation is

2C_2H_5OH------CH3CH_2O-CH_2CH_3+H_20

Therefore

with ethanol at 140oC

The product is diethyl ethen

The reaction at 170 ethylene will give

C_2H_5OH-------CH_2=CH_2+H_2O( at a condition of H_2SO4 as catalyst and temp 170)

Therefore

The the liquid is

C_2H_5OH (ethanol

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Reaction 3 is the double displacement reaction.

Double displacement reaction occurs when the negatively and the positively charged ions of the compounds interchange their position when the new compound in the product is formed.

Which is a double displacement reaction?

In the first reaction, the element lead (Pb) is not an ion and no exchange of the cations or the anions occurs hence it is not a double displacement reaction.

In the second reaction, one compound is getting split into two new compounds and is a decomposition reaction.

In the third reaction, [tex]\rm Br^{-}[/tex] in [tex]\rm 2NaBr[/tex] and [tex]\rm (OH)_{2}[/tex] in [tex]\rm Ca(OH)_{2}[/tex] are anions and cations and exchanges their places to produce two new compounds [tex]\rm CaBr_{2} + 2NaOH.[/tex]

In the fourth reaction, a single compound is generated as the result of the combination reaction and hence, it is not the double displacement reaction.

Therefore, [tex]\rm 2NaBr + Ca(OH)_{2} \rightarrow CaBr_{2} + 2NaOH[/tex] is the double displacement reaction.

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Answer:

Many forms of energy exist, but they all fall into two basic categories:Potential energy.Kinetic energy.

Hey, the answer would be pentose.

Please mark as brainlist

Answer:

1. One atom pulls an electron from another atom.

2. Forming bonds releases energy and is exothermic.

3.pull electrons away from other elements.

4. Additional bonds require more energy to break, so the bond energy is higher.

5. −153

Explanation:

I just took it amor :) beijos good luck !

Answer:

1. One atom pulls an electron from another atom.

2. Forming bonds releases energy and is exothermic.

3. pull electrons away from other elements.

4. Additional bonds require more energy to break, so the bond energy is higher.

5. −153

Explanation:

i did the quick check i got 100%

Quadratic equation is a polynomial equation of the second degree.

What is a quadratic equation?

The term quadratic equation refers to an equation of the type ax^2 + bx +c. It is a polynomial of degree 2. The highest power of x therein is only 2.

The question is incomplete hence we can't really tell which of the pair of functions in which the exponential is consistently growing at a faster rate than the quadratic over the interval.

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Answer:C

Explanation:

Answer:

please read the answer above

Answer:

When the humidity is 100 percent, the air is saturated with water. Air pressure also affects evaporation. If air pressure is high on the surface of a body of water, then the water will not evaporate easily. The pressure pushing down on the water makes it difficult for water to escape into the atmosphere as vapor.

Explanation:

It is advantageous that water does not evaporate quickly on Earth because the soil and Earth water will be conserved.

What is evaporation?

Evaporation is a process by which a liquid is converted to the gaseous state.

The water on the Earth surface in liquid form is evaporated with an increase in heat.

However, it is advantageous that water does not evaporate quickly on Earth because the water on the Earth surface will be conserved i.e. available for future use.

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Answer:

The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted.

This problem is providing us with the mass of an unknown compound, the mass of water it was added in and the change (decrease) in the freezing point the solution exhibited. Thus, the problem requires the molar mass of the compound, and at the end, the result turns out to be 126.7 g/mol, according to:

Freezing point depression:

In chemistry, colligative properties are used to understand how the properties of a solvent change as a solute is added, forming a solution. In this case, we can use the following formula, since the solute decreased water's freezing point:

[tex]\Delta T_m=-m*Kf[/tex]

Where the molality is the first variable for us to calculate given the other two:

[tex]m=\frac{-3.14\°C}{-1.86\°C/m} =1.69m[/tex]

Thus, since this molality is in moles of solute per kilograms of solvent (water), one can find the former by multiplying the 35.0 g of water, but in kilograms:

[tex]n=\frac{1.69mol}{kg} *35.0g*\frac{1kg}{1000g} =0.0591mol[/tex]

Finally, we compute the molar mass as required:

[tex]M=\frac{7.50g}{0.0591mol}\\ \\M=126.9g/mol[/tex]

As we assumed this solute is nonionizing.

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Answer:

Heat describes the transfer of thermal energy between molecules within a system and is measured in Joules. Heat measures how energy moves or flows. ... Temperature describes the average kinetic energy of molecules within a material or system and is measured in Celsius (°C), Kelvin(K), Fahrenheit (°F), or Rankine (R).

Explanation:

I hope it's helpful for you

Answer: Heat Energy/Thermal Energy is not the same as temperature. You mesure how hot or cold it is with a thermometer and it shows the temperature in either Fahrenheit or Celsius. Temperture is a way to measure the warm or coldness of a object. But it is a manifestation of heat energy. "is a physical quantity that expresses the degree of hotness or coldness of a substance. It is the manifestation of thermal energy, present in all matter, which is the source of the occurrence of heat, a flow of energy, when a body is in contact with another that is colder or hotter.. Temperature is measured with a thermometer."

Explanation:

Answer:

The answer to the question is 148.3 g

Explanation:

To find moles, you want to get rid of the grams by finding molar mass. Then, you have to get rid of grams using cross multiplication. This is why 148.3 grams is on the bottom; it will get rid of the grams on the original amount leaving you moles.

Answer:

No

Explanation:

You can not have a reaction that produces "no mass". This breaks the law of conservation of mass. When gasses are produced, they will have a specific amount of mass associated with them which means they will have a weight. They will have to be accounted for

Answer:

NO, THE CRUMPLED PAPER WEIGHT'S MORE THAN FLAT SHEET OF PAPER

Answer:

count how many electrons it 'owns'

The value of Keq for this reaction is [tex]\bold{1.8 \times 10^-^5}[/tex]

The correct option is (A).

What is acetic acid?

Acetic acid is an organic compound also called ethanoic acid. It is a colorless liquid with a chemical formula [tex](CH_3COOH)[/tex].

It has antibacterial and antifungal properties.

When acetic acid is reacted with water, it completely dissolves in it.

Thus, the correct option is A, [tex]\bold{1.8 \times 10^-^5}[/tex].

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Answer:

No, gravity isn't matter

Explanation:

Gravity is a force that attracts matter towards the center of a physical body with mass.

Answer:

Natural gas is environmentally friendly because it burns cleaner than other fossil fuels. It's safer and easier to store when compared to other fossil fuels. Natural gas is extremely reliable, unlike electric power that can be knocked out during a storm. Natural gas is less expensive than other fossil fuels.

Explanation:

Answer:

There are many reasons to examine human cells and tissues under the microscope. Medical and biological research is underpinned by knowledge of the normal structure and function of cells and tissues and the organs and structures that they make up. In the normal healthy state, the cells and other tissue elements are arranged in regular, recognizable patterns. Changes induced by a wide range of chemical and physical influences are reflected by alterations in the structure at a microscopic level, and many diseases are characterized by typical structural and chemical abnormalities that differ from the normal state. Identifying these changes and linking them to particular diseases is the basis of histopathology and cytopathology, important specializations of modern medicine. Microscopy plays an important part in haematology (the study of blood), microbiology (the study of microorganisms including parasites and viruses), and more broadly in the areas of biology, zoology, and botany. In all these disciplines, specimens are examined under a microscope.

hope it helps

Answer:

See the attachment...!!!

Answer:

true, I've seen this before, it's true

Answer:

stars,auroras,a neon sign

Explanation:

just did it

Answer:

D. first law of thermodynamics

Answer:

Spectroscopy

Explanation:

They can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy

Answer:

Nitrogen: N3-

Aluminum: Al3+

Fluorine: F-

Sulfur: S2-

Oxygen: O2-

Argon: Ar

Explanation:

Argon is a noble gas, so it doesn't have a normal ionic charge.