Visible corrosion, or other degradation of a container, may indicate that a container is undergoing _____ energy.

The number of moles of oxygen is 9.01 moles

The mole is a fundamental unit of measurement in chemistry and is used extensively in stoichiometry, which is the study of the quantitative relationships between reactants and products in a chemical reaction.

In stoichiometry, the mole is used to quantify the amount of a substance involved in a reaction. The mole is defined as the amount of a substance that contains the same number of particles (atoms, molecules, ions, or other entities) as there are in 12 grams of pure carbon-12.

We know that;

2 moles of H₂O2 produces 1 mole of oxygen

18.02 moles of H₂O2 produces 18.02 * 1/2

= 9.01 moles

Learn more about moles:https://brainly.com/question/26416088

#SPJ1

One reason that we say that light is a wave is because light waves can travel through a medium.

A wave can be defined as a disturbance along a medium which transfers energy. It then follows that waves move energy from one point to another.

Waves can be classified as;

Mechanical waves are those waves that  require a material medium for propagation such as sound, and waves on a strings while electromagnetic waves do not require a material medium for propagation.

Light exhibits certain behaviors that are characteristic of any wave. Light reflects in the same manner that any wave would reflect. Light refracts in the same manner that any wave would refract. Light diffracts in the same manner that any wave would diffract. Light undergoes interference in the same manner that any wave would interfere. And light exhibits the Doppler effect just as any wave would exhibit the Doppler effect. Light behaves in a way that is consistent with our conceptual and mathematical understanding of waves. Since light behaves like a wave, one would have good reason to believe that it might be a wave.

Learn more about light waves: https://brainly.com/question/26116832

#SPJ1

Answer:

(6.02214179×1023) / one mole of substance. How many atoms are in a 3.0 g sample of sodium (Na)?

Explanation:

Answer:

Explanation:

Mass is 1.000

Answer:

Answer:the answer is b

Explanation:I took the test and got it right

When basket ball is dropped from a height, its potential energy decreases and its kinetic energy increases till it reaches the ground. The highest kinetic energy is at ground level.

The energy that an object has as a result of motion is known as kinetic energy. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The body holds onto the kinetic energy it acquired during its acceleration until its speed changes.

A ball drops from the top of a building and picks up speed as it descends. Its speed is increasing by 10 m/s every second. What we refer to as motion with constant acceleration is, for example, a ball falling due to gravity.

Thus, The highest kinetic energy is at ground level.

To learn more about kinetic energy, follow the link;

https://brainly.com/question/15764612

#SPJ1

Answer:

B .it is an exothermic reaction

Explanation:

i need brainleyest

Answer:

Made up of glucose but passes through the body without being digested

Explanation:

Fiber: Made up of glucose but passes through the body without being digested. Sugar Alcohols: Not made up of glucose, therefore, they don’t directly affect blood glucose levels and are only partially digested. Although fiber is a carbohydrate, your body doesn’t digest it the same way.

Answer:

Moles Lost = 0.0335 moles

Explanation:

This type of question requires the Ideal Gas Law equation. The equation looks like this:

PV = nRT

In this formula,

-----> P = pressure (kPa)

-----> V = volume (L)

-----> n = number of moles

-----> R = constant (8.314 L*kPa/mol*K)

-----> T = temperature (K)

(Step 1)

To find how many moles were lost, you first need to find how many moles you had to begin with. This can be done by plugging the starting values into the equation and solving for "n". But first, you need to convert Celsius to Kelvin (by adding 273.15).

P = 225 kPa                  R = 8.314 L*kPa/mol*K

V = 2.75 L                     T = 25°C + 273.15 = 298.15 K

n = ?

PV = nRT

(225 kPa)(2.75 L) = n(8.314 L*kPa/mol*K)(298.15 K)

618.75 = n(2478.8191)

0.250 = n

(Step 2)

Next, you need to find the number of moles in the container after it has been re-sealed. The volume is the same because the container did not change. The process should be the same as above.

P = 185 kPa                   R = 8.314 L*kPa/mol*K

V = 2.75 L                     T = 10°C + 273.15 = 283.15 K

n = ?

PV = nRT

(185 kPa)(2.75 L) = n(8.314 L*kPa/mol*K)(283.15 K)

508.75 = n(2354.1091)

0.216 = n

(Step 3)

Finally, you can find the number of moles lost by subtracting the final amount of moles from the original amount. When doing this calculation, I used the value of the moles saved in my calculator (with more decimal places) to get a more accurate number.

Moles Lost = Initial Moles - Final Moles

Moles Lost = 0.250 moles - 0.216 moles

Moles Lost = 0.0335 moles

Answer:

Atoms,

Molecules

The equilibrium constant (K) for the given reaction is \(1.26 * 10^{35}\), and the standard free energy change (ΔG°) is approximately -212,300 J/mol.

To calculate the equilibrium constant (K) and the free energy change (ΔG°) for the given reaction in the Daniell cell, we can use the Nernst equation:

ΔG° = -nFE°

where:

ΔG° is the standard free energy change

n is the number of electrons transferred in the balanced equation

F is Faraday's constant (96500 C/mol)

E° is the standard cell potential

Given that the cell potential (E°) is 1.1 V, we can determine the number of electrons transferred by looking at the balanced equation:

\(Zn (s) + Cu^{2+} (aq) < -- > Zn^{2+} (aq) + Cu (s)\)

In this case, 2 electrons are transferred.

Now we can calculate ΔG°:

ΔG° = -nFE° = -(2)(96500 C/mol)(1.1 V) = -212,300 J/mol

To calculate the equilibrium constant (K), we can use the equation:

ΔG° = -RTln(K)

At 298 K, we can rearrange the equation to solve for K:

K = exp(-ΔG° / RT)

Substituting the values:

K = exp(-(-212,300 J/mol) / (8.314 J/(mol·K) × 298 K)) ≈ exp(80.81)

≈ \(1.26 * 10^{35}\)

To learn more about equilibrium constant click here https://brainly.com/question/30620209

#SPJ11

Answer:

You right!

Explanation:

Answer: Yes your right

Answer:

Petroleum refinery capacity in the UAE 2009-2018

In 2018, the total production capacities of all refineries in the UAE were 1.13 metric barrels per day. Total total production capacity of the al-Ruwais refinery in the United Arab Emirates was approximately 817,000 metric barrels per day.

Answer:

Question 4 is 291.0346

Explanation:

The correct answer is option D.

The statement that formed the basis of Dalton’s atomic theory is atoms are the smallest particles of matter and cannot be divided farther.

In 1808, Dalton presented a theory named atomic theory which suggests that atoms are the smallest particles of an element and it is impossible to divide them further.

According to his theory every element is composed of these tiny particles.

Furthermore, his theory suggests that atoms neither can be divided nor destroyed.

In a particular matter, for example gold, all atoms have similar properties while their mass varies for every single different element.

If you need to learn more about Dalton’s atomic theory click here:

https://brainly.com/question/15507302

#SPJ4

The complete question is:

Which of these statements is one of the conclusions that formed the basis of Dalton’s atomic theory?

a. Atoms can only change into atoms of another element through nuclear reactions.

b. Atoms of gases have less mass than atoms of liquids and solids.

c. Atoms of a particular element all have the same number of protons.

d. Atoms are the smallest particles of matter and cannot be divided farther.

The correct ranking of compounds in order of increasing keq for this equilibrium is Acetone < Propanone < Benzaldehyde.

The correct ranking of compounds in order of increasing keq for the equilibrium of each of the carbonyl compounds with HCN to produce cyanohydrins is

Acetone < Propanone < Benzaldehyde.

In the above reaction, the cyanide ion acts as a nucleophile and attacks the carbonyl carbon atom in the carbonyl compound to form an intermediate compound. Then the intermediate compound formed by the reaction between HCN and the carbonyl compound undergoes an intramolecular rearrangement to form cyanohydrin.Based on the stability of intermediate compound formed, the order of increasing stability is as follows:

Acetone < Propanone < Benzaldehyde.

Since the keq is directly proportional to the stability of the intermediate, the order of increasing keq for the equilibrium of each of the carbonyl compounds with HCN to produce cyanohydrins is

Acetone < Propanone < Benzaldehyde.

The correct ranking of compounds in order of increasing keq for this equilibrium is

Acetone < Propanone < Benzaldehyde.

To know more about Benzaldehyde visit:

https://brainly.com/question/29754365

#SPJ11

Answer:

Explanation:

Answer:

HOPE ITS CLEAR. ☺️

Answer:

4.52 grams of potassium chloride

Explanation:

First you need a balanced reaction equation K(s) + Cl₂ (g) --> 2 KCl(s). Since the chlorine gas is said to be in excess all of the potassium will be converted to form potassium chloride. Convert grams of potassium to moles of potassium with the periodic table, then you can convert moles of potassium to moles of potassium chloride with the balanced equation, finally convert moles of potassium chloride to grams of potassium chloride with the periodic table. Set up a dimensional analysis chart to help with conversions

(2.50 grams K) * (1 mole K)      * (2 mole KCl)   *   (35.45 grams KCl)

                       (39.09 grams K)      (1 mole K)             (1 mol KCl)

Which equals 4.52440778 grams, with sig figs it should be 4.52 grams of potassium chloride

Answer:

I'm probably wrong but I wanna say C.

Explanation:

Answer:

it's ductility and it's conductivity

Explanation:

Answer:

1) The percentage of oxygen in dry air is _______

C. 21

2) The composition of the Earth’s earliest atmosphere was different to that of the present atmosphere. Which of these gases was present in large amounts in the Earth’s earliest atmosphere?

B. CARBON DIOXIDE

Hope it helps

have a nice day

Answer: The percentage of oxygen in dry air is .  21

Explanation:  Ammonia gases was present in large amounts  in the easth7s earliest atmosphere

Hope it will help you

During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate). Summary, Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP. Overall, this three-stage process involves glucose and oxygen reacting to form carbon dioxide and water.

(a) The number of oxygen molecules and the number of oxygen atoms in 34.5 g of O2 can be calculated as follows:

1. Determine the molar mass of O2:

The molar mass of O2 (oxygen gas) is calculated as the sum of the atomic masses of two oxygen atoms.

Molar mass of O2 = 2 * Atomic mass of oxygen

Using the atomic mass from the periodic table, the atomic mass of oxygen is approximately 16 g/mol.

Molar mass of O2 = 2 * 16 g/mol = 32 g/mol

2. Calculate the number of moles of O2:

To find the number of moles, divide the given mass of O2 by its molar mass.

Number of moles of O2 = Mass of O2 / Molar mass of O2

Number of moles of O2 = 34.5 g / 32 g/mol = 1.078125 mol (approximately)

3. Calculate the number of oxygen molecules:

Since each mole of O2 contains Avogadro's number of molecules (6.022 x 10^23), multiply the number of moles of O2 by Avogadro's number to get the number of oxygen molecules.

Number of oxygen molecules = Number of moles of O2 * Avogadro's number

Number of oxygen molecules = 1.078125 mol * 6.022 x 10^23 molecules/mol

Number of oxygen molecules = 6.49378125 x 10^23 molecules (approximately)

The number of oxygen molecules in 34.5 g of O2 is approximately 6.49378125 x 10^23 molecules.

To know more about molecules visit:  

https://brainly.com/question/475709

#SPJ11

Answer:

Ball with thingies around it

Exothermic refers to the process that produces heat. The correct response is thus d) exothermic.

Exothermic describes a chemical or physical reaction that produces heat or light as a byproduct. An exothermic reaction raises the temperature of the environment by releasing energy from the reactants to it. Combustion, oxidation, and neutralisation are a few examples of exothermic reactions. The opposite of endothermic processes, which draw energy from the environment and reduce temperature, is an exothermic reaction. Several chemical and industrial operations, including the creation of heat in power plants and the manufacture of steel, depend on exothermic reactions.

Examples of exothermic reactions are as follows:

Exothermic processes include the burning of fuels like wood, coal, and gasoline. that causes energy to be released as heat and light.

Reactions between acids and bases that produce salt and water and release energy are known as neutralisation reactions.

Reactions known as polymerization: Reactions known as polymerization involve connecting monomers to produce polymers and frequently release energy in the process.

Learn more about exothermic here:

https://brainly.com/question/29591199

#SPJ4

Answer:

Melting point

Explanation:

The temperature at which the solid and liquid forms of a pure substance can exist in equilibrium is called melting point. It can be also defined as the temperature at which a solid becomes a liquid at normal atmospheric pressure.