cis-1,2-Dimethylcyclohexane is achiral, not because there is a plane of symmetry, but because it consists of two enantiomeric conformations which interconvert rapidly via ring flipping at normal temperatures.

The complete reaction of 6.88 kg of ammonium nitrate produces 4128 grams of oxygen.

The balanced equation for the complete reaction of ammonium nitrate (NH4NO3) is:

NH4NO3(s) → N2(g) + 2H2O(g) + 1.5O2(g)

According to the stoichiometry of the balanced equation, one mole of NH4NO3 produces 1.5 moles of O2. To determine the amount of O2 produced by the reaction of 6.88 kg of NH4NO3, we need to convert the mass of NH4NO3 to moles and then use the mole ratio to find the number of moles of O2 produced.

The molar mass of NH4NO3 is 80.052 g/mol. Therefore, the number of moles of NH4NO3 in 6.88 kg is:

6.88 kg × (1000 g/kg) / (80.052 g/mol) = 85.96 mol

Using the mole ratio from the balanced equation, we can find the number of moles of O2 produced:

85.96 mol NH4NO3 × (1.5 mol O2 / 1 mol NH4NO3) = 129.0 mol O2

Finally, we can convert the moles of O2 to grams using the molar mass of O2, which is 32.00 g/mol:

129.0 mol O2 × (32.00 g/mol) = 4128 g

Therefore, the complete reaction of 6.88 kg of ammonium nitrate produces 4128 grams of oxygen.

for more such question on reaction

https://brainly.com/question/11231920

#SPJ11

The transition within an atom that is not possible is an electron begins in an excited state and then gains enough energy to become ionized. Option D is correct.

An excited electron already has excess energy above its ground state energy level. If it gains more energy, it can transition to a higher energy level or even become ionized by being ejected from the atom. However, an electron that has already been excited and has reached its highest energy level cannot gain any more energy from the atom and therefore cannot be ionized further.

Once an electron is in its highest energy level, it is said to be in the ionization continuum and cannot be further excited or ionized by the atom. Therefore, the transition of an electron beginning in an excited state and then gaining enough energy to become ionized is not possible. On the other hand, the other three transitions listed are possible and occur naturally in many physical and chemical processes, such as atomic emission and absorption spectra. Option D is correct.

To know more about the Excited state, here

https://brainly.com/question/13088843

#SPJ4

Answer:

1) The light microscope. The common light microscope used in the laboratory is called a compound microscope because it contains two types of lenses that function to magnify an object. The lens closest to the eye is called the ocular, while the lens closest to the object is called the objective. Most microscopes have on their base an apparatus called a condenser, which condenses light rays to a strong beam.

2) Other light microscopes. In addition to the familiar compound microscope, microbiologists use other types of microscopes for specific purposes. These microscopes permit viewing of objects not otherwise seen with the light microscope.

3) The fluorescent microscope uses ultraviolet light as its light source. When ultraviolet light hits an object, it excites the electrons of the object, and they give off light in various shades of color. Since ultraviolet light is used, the resolution of the object increases. A laboratory technique called the fluorescent‐antibody technique employs fluorescent dyes and antibodies to help identify unknown bacteria.

The enthalpy change(δH) for the reaction at -79.0 °C is -769.98 kJ.

To solve this problem, we will use the following equation:

ΔH = ΔH° + CpΔT

where ΔH is the enthalpy change at the new temperature,

ΔH° is the enthalpy change at the standard temperature (in this case, 164.4 °C),

Cp is the heat capacity of the system,

ΔT is the difference in temperature.

δH = -833.32 kJ = -833,320 J
δH° = 866.05 J/K

Calculating the heat capacity, Cp:

Cp = (ΔH - ΔH°) / ΔT

Cp = (-833,320 J - 866.05 J/K x 164.4 K) / (164.4 - (-79.0)K)

Cp = -834,186.58 J/K

Use the same equation to find the enthalpy change at the new temperature:

ΔH = ΔH° + CpΔT

ΔH = -833,320 J + (-834,186.58 J/K x (-79.0 - 164.4))

ΔH = -769,982.69 J

Convert this value back to the original units:

δ = ΔH / 1000 = -769.98 kJ

Therefore, the reaction's enthalpy change at -79.0 °C is -769.98 kJ.

To learn more about enthalpy change visit:

https://brainly.com/question/24180470

#SPJ11

Answer:

B

Explanation:

Chemical reactions involve electron rearrangements. Nuclear reactions involve changes to the nucleus.

Answer:

B

Explanation:

Answer:

c

Explanation:

Since we are told that O2 is the excess reactant, we need only to focus on C2H6, which will be our limiting reactant. Convert the mass of C2H6 to moles by dividing the mass by the molar mass of C2H6:

(5 g C2H6)(30.069 g/mol) = 0.1663 mol C2H6

Since C2H6 is the limiting reactant, its quantity will determine how much of each product is formed. We are asked to find the number of grams (the mass) of H2O produced. The molar ratio between H2O and C2H6 per the balanced equation is 6:2. That is, for every 6 moles of H2O that is produced, 2 moles of C2H6 is used up (intuitively, then, the number of moles of H2O produced should be greater than the number of moles of C2H6 consumed, specifically 3 times greater).

So, the number of moles of H2O produced would be (0.1663 mol C2H6)(6 mol H2O/2 mol C2H6) = 0.499 mol H2O. We multiply by the molar mass of H2O to convert moles to mass: (0.499 mol H2O)(18.0153 g/mol) = 8.987 g H2O.

Note: If significant figures must be considered, then the answer would be 8.99 g H2O.

The best buffer in this experiment is the one with the highest buffering capacity, maintaining a stable pH when small amounts of acid or base are added.

To compare the buffer performance in this experiment, you need to evaluate the buffering capacity of each buffer, which is the ability to maintain a stable pH when small amounts of acid or base are added. A higher buffering capacity indicates better performance.

To do this, you can compare the pH changes of each buffer upon addition of the same amounts of acid or base. The buffer with the smallest pH changes demonstrates the highest buffering capacity and is considered the best. Factors that influence buffering capacity include the concentration of the buffer components and the pKa of the buffering agent, which should be close to the desired pH of the buffer solution.

Learn more about buffer here:

https://brainly.com/question/31847096

#SPJ11

The buffer in this experiment that can maintain a steady pH when modest quantities of acid or base are introduced has the highest buffering capacity.

The ability of each buffer to maintain a stable pH when tiny additions of acid or base are made is its buffering capacity, which must be assessed in order to compare the buffer performance in this experiment. Better performance is indicated by a larger buffering capacity.

To achieve this, you may evaluate how each buffer's pH changes when the identical amounts of acid or base are added. The buffer that exhibits the least amount of pH change is said to have the maximum buffering capability. The concentration of the buffer components and the pKa of the buffering agent, which should be near to the intended pH of the buffer solution, are factors that affect buffering capacity..

Learn more about buffer here:

brainly.com/question/31847096

#SPJ4

The theoretical yield of AsCl3 would be 1.0814 moles.

According to the balanced chemical equation, 4 moles of AsF3 react with 3 moles of C2Cl6 to produce 4 moles of AsCl3. Therefore, the stoichiometric ratio between AsF3 and AsCl3 is 4:4 or 1:1. This means that the number of moles of AsCl3 produced will be equal to the number of moles of AsF3 used up in the reaction.

Since 1.3618 moles of AsF3 are used up, the theoretical yield of AsCl3 would also be 1.3618 moles. However, it is important to note that the reaction is limited by the amount of C2Cl6 available, which means that not all of the AsF3 will react to form AsCl3.

To calculate the actual yield of AsCl3, the limiting reactant must be determined and the percent yield can be calculated based on the theoretical yield.

For more questions like Yield click the link below:

https://brainly.com/question/2506978

#SPJ11

Answer:

The answer is 2.

Explanation:

Answer:

Beta particles have a charge of minus 1.

Explanation:

Hope this helps!

Answer:

MARK AS BRAINLIEST ANSWER

PLZ FOLLOW ME

Explanation:

Beta particles have a mass which is half of one thousandth of the mass of a proton and carry either a single negative (electron) or positive (positron) charge. As they have a small mass and can be released with high energy, they can reach relativistic speeds (close to the speed of light)

HOPE IT HELPS YOU

Answer: If 550 ml of gas at 1 atm expands to 960 ml, the pressure will be 0.57 atm.

Explanation:

It is an exercise of Boyle's Law that says: "At constant temperature the volume of a mass of a gas is inversely proportional to the pressure it exerts".

This means that if the volume is doubled the pressure is halved, and if the pressure is increased three times as much, the volume will be one third (1/3) of what it originally was.

The word inversely proportional means that if the pressure increases the volume decreases but proportionally.

550 mL of gas at I atm is expanded to 960 mL. What will the pressure be?

Data:

V₁ = 550 mL

P₁ = 1 atm

V₂ = 960 mL

P₂ = ?

The formula of this law is:

Where

He asks us what the pressure would be after 960 mL, we solve the formula for the final pressure, then

\(\boxed{\bold{P_1V_1=P_2V_2 \iff \ P_2=\frac{P_1V_1}{V_2} }}\)

We substitute our data in the cleared formula and solve:

\(\boxed{\bf{P_2=\dfrac{(1 \ atm \ \times \ 550\not{mL}) }{960\not{mL}} }}\)

\(\boxed{\bf{P_2=0.57 \ atm }}\)

If 550 ml of gas at 1 atm expands to 960 ml, the pressure will be 0.57 atm.

Answer:

Inverse proportion occurs when one value increases and the other decreases. For example, more workers on a job would reduce the time to complete the task. They are inversely proportional.

Answer:

A

Explanation:

You omitted what it was raised to the power in 1.3 x 10's gallons of water,  so i will put it up as   1.3 x 10^15 gallons of water and solve with it

Answer:1,083,333 days

Explanation:

Total amount of water held by lake Michigan= 1.3 x 10^15 gallons of water

Amount of water Chicago uses per day =Chicago uses 1.2 x 10^9 gallons of water /day

Therefore,

Number of days water would last if it doesnt rain =  Total gallons provided by lake Michigan/ Total gallons consumed per day

=1.3 x 10^15 gallons of water/ 1.2 x 10^9 gallons of water /day

= 1,083,333 days

High-quality scientific research is characterized by several key criteria. Three examples of such criteria include: rigorous experimental design and methodology, reliable data analysis and interpretation, and clear and transparent reporting of results.

These criteria ensure that research is conducted in a systematic and reliable manner, leading to trustworthy and valid findings.

Rigorous Experimental Design and Methodology: High-quality scientific research requires a well-designed experimental approach. This involves careful planning, proper control groups, randomization, and replication. A rigorous methodology ensures that experiments are conducted under controlled conditions, minimizing bias and confounding variables, and allowing for accurate and reliable data collection.

Reliable Data Analysis and Interpretation: After data collection, high-quality research involves thorough and appropriate analysis of the data. This includes using appropriate statistical methods to evaluate the significance of the results and drawing valid conclusions. Proper data analysis helps researchers identify patterns, trends, and relationships, supporting or refuting their hypotheses in an objective and reliable manner.

Clear and Transparent Reporting of Results: High-quality research demands transparent reporting of the methods, procedures, and findings. This includes providing detailed descriptions of the experimental setup, data collection processes, and statistical analyses used. Clear reporting allows other researchers to replicate the study and verify its results. Additionally, complete reporting ensures that readers can understand the research methodology and draw their own conclusions based on the evidence presented.

By adhering to these criteria, high-quality scientific research maintains integrity, credibility, and reproducibility. It fosters trust among the scientific community and facilitates the advancement of knowledge by building upon reliable foundations.

To learn more about research click here:

brainly.com/question/31251355

#SPJ11

Based on the given information, we can analyze the effects of the tax on consumer surplus, producer surplus, deadweight loss, and total surplus:

Consumer surplus decreases from $200 to $80: This statement suggests that the tax has reduced the benefit received by consumers in the market. Consumer surplus represents the difference between what consumers are willing to pay for a good or service and what they actually pay. If consumer surplus decreases from $200 to $80, it implies that the tax has increased the price consumers have to pay, thereby reducing their surplus .The statement suggests that the deadweight loss in the market due to the tax is $80.

learn more about:- consumer surplus here

https://brainly.com/question/29025001

#SPJ11

Answer: 120 g

(C)

no idea what you guys are taking about in here :Kappa:

Answer:

120

Explanation:

The name of an aqueous solution of HBr (hydrobromic acid) is simply HBr(aq).

An aqueous solution refers to a solution in which water is the solvent, and in this case, HBr is the solute. Hydrobromic acid, which has the formula HBr, is a strong acid that can dissolve in water to form H+ and Br- ions. When HBr is dissolved in water, the resulting solution is acidic due to the presence of these ions. It is important to note that the acidity of the solution will depend on the concentration of HBr in the solution. Therefore, the pH of an aqueous solution of HBr will vary based on the concentration of the solution.

To know about hydrobromic acid visit

https://brainly.com/question/30459979

#SPJ11

Answer:

What are the pros of coal energy? ans :

Huge Global Reserves.

Not an Intermittent Energy Source.

Reliable Fuel.

Inexpensive Energy Source.

Minimal Wastes, Consumable Byproducts

Smokeless Alternatives

Compatible With Other Energy Sources.

Sodium and potassium are s-block alkali metals. Because potassium and sodium are metals, they each lose one electron.

Reactivity is indeed a measure of how easily a material conducts a chemical reaction in chemistry. The reaction might include the chemical alone or in combination with those other atoms or molecules, and it is usually followed by the release of energy. The most reactive components and elements have the potential to spontaneously or explosively ignite.

Because potassium and sodium are metals, they each lose one electron. They create cations and react with nonmetals to generate salt. Sodium and potassium are s-block alkali metals.

Therefore, because potassium and sodium are metals, they each lose one electron.

To learn more about chemical reactivity, here:

https://brainly.com/question/6424330

#SPJ1

Answer:

b. mass A → moles A → moles B

Explanation:

hope this helps

To convert from mass of A to moles of B in a stoichiometry problem the steps required is mass A → moles A → moles B.

Relation between moles (n) and mass will be represented by showing the below formula:

n = W/M, where

W = given mass

M = molar mass

So the calculate the moles of B from the stoichiometry of the reaction:

Hence the required steps are mass A → moles A → moles B.

To know more about moles & mass, visit the below link:

https://brainly.com/question/21911991

#SPJ2

Answer:

The answer is B. A hydrogen atom forms a convalent bond.........

Answer:

Divide by the molar mass to get moles

Explanation:

Answer: contributes to greenhouse gasses, can kill plants and animals when breathed in

Explanation:

Protonation of an alcohol (ROH) involves the transfer of a proton (H+) from an acid to the hydroxyl group (OH) of the alcohol, resulting in the formation of an oxonium ion (RO+H2). The efficiency of this process depends on the strength of the acid used as a reagent.

The reagents that are capable of efficiently protonating an alcohol and converting it to oxonium include strong acids like HCl (hydrochloric acid) and \(H_{2} SO_{4}\) (sulfuric acid). These acids have a high tendency to donate protons, and as a result, they react readily with the alcohol to form the corresponding oxonium ion.

On the other hand, weak acids like \(H_{2} O\) (water) and \(NaNH_{2}\) (sodium amide) are not efficient in protonating alcohols. \(H_{2} O\) is a neutral molecule that cannot donate protons, while \(NaNH_{2}\) is a weak base that tends to deprotonate the alcohol instead of protonating it.

In summary, the reagents that efficiently protonate an alcohol and convert it to oxonium are strong acids like HCl and \(H_{2} SO_{4}\). These acids donate protons readily, and hence they react efficiently with alcohols to form oxonium ions. However, weak acids like \(H_{2} O\) and \(NaNH_{2}\) are not efficient in protonating alcohols due to their low tendency to donate protons.

Here you can learn more about Protonation

https://brainly.com/question/1252435#

#SPJ11