Suppose we let the reaction below come to equilibrium. Then we decrease the total pressure, by increasing the volume of the container. What will be the effect on the net amount of SO3(g) present

PV=nRT

Explanation:

P- pressure

V- volume

n-moles

R- constant gas

T- temperature

Therac-25, AECL was able to reduce costs by replacing hardware safety features with software controls.

the Therac-25 was a laptop-controlled radiation therapy machine produced by Atomic energy state Canada limited in 1982 after the Therac-6 and Therac-20 units. It was involved in at least six accidents between 1985 and 1987, in which patients were given massive overdoses state radiation.

The Therac-25 machine was a state-of-the-art linear accelerator developed by using the company Atomic strength Canada restricted (AECL) and a French company CGR to provide radiation treatment to cancer sufferers. The Therac-25 become the most computerized and complicated radiation therapy device state its time.

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Answer:

index fossils are important for index fossils because

they use them to match up rock layers in certain locations

that may be far apart!

they are ALSO important to scientists because it helps them with relative age.

Explanation:

Answer:

b. option Is the correct answer

Answer:

Evaporation

Explanation:

Water at the surface of the ocean rivers and lakes can become water vapor and move into the atmosphere with a little added energy from the Sun through a process called evaporation. Snow and ice can also become water vapor through a process called sublimation. See also why do variations in generation time exist

Answer: chemical

Explanation:

Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy. Except at absolute zero (the coldest temperature it is possible to reach), all molecules move.

Answer:

No.

Explanation:

Weight is the measure of the gravitational force between two massive things.

W = g . m

g = gravity

m = mass

Also, we can say that gravity is equal to G.M/d² where G is the constant of Newton's gravity, M the massa of the corp and d is their distance.

In Einstein's theory, that's not true, but it works for small gravitys.

The description of the question is the definition of density.

Arsenic sulfide has the chemical formula As₄S₆  and a molar mass of 246.035 g/mol.

An odorless, yellow or orange, crystalline powder is known as arsenic trisulfide. It is used as a pigment, in tanning, and in insecticides, as well as in the production of glass, oil cloth, linoleum, electrical semi-conductors, photoconductors, and pyrotechnics.

Step 1: 320 °C is the indicated melting point.

It is discovered that the rate at which the molecules of the vapor phase effuse through a small hole is 0.28 times that of As.

Step 2: Determine Ar's mean square velocity

Ar equals (3RT/MM).

µAr = √((3*8.314*593)/39.948*10^-3)

µAr = 608.48

Determine the mean speed of arsenic (III) sulfide in step 3:

µ = 0.28*µAr = 0.28 * 608.48 =170.37 m/s

Calculate the molar mass of arsenic (III) sulfide in step 4:

=(3R*T)/MM 170.37 m/s =(3*8.314 kg*m2/s2*mol*K * 593K)/MM 170.372 =(3*8.314 kg*m2/s2*mol*K * 593K)/MM

MM is equal to (3*8.314 kg*m2/s2*mol*K*593K)/(170.372).

509.6 g/mom = MM = 0.5096 kg/mol

As(III) sulfide's empirical formula is As2S3.

The molar mass of As2S3 is 246.035 g/mol.

Step 5: Determine the As(III) sulfide's molecular formula: n = 509.6 /246.035 n = 2.07 2.

This implies that we must increase the empirical formulae by 2.

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The temperature of the water increased when the value of q(specific heat capacity) is negative.

The hydrogen bonding in water is the cause of its high specific heat capacity, which we can explain. The water molecules must shake in order for the numerous connected hydrogen bonds to raise the temperature of the liquid. Because there are so many hydrogen bonds, it takes more energy for the water molecules to break. Similarly to this, it takes some time for warm water to cool down. The temperature drops as heat escapes and the vibrational motion of water molecules slows. The warmth released balances the chilling impact of the heat loss from the liquid water.

The specific heat capacity (Cp) of a liquid at atmospheric pressure and temperature is roughly 4.2 J/g°C. This suggests that to increase 1 gramme of water by 1 degree Celcius, 4.2 joules of energy are required. Actually, this Cp number is rather high. The specific heat of liquid water, also known as the specific heat capacity of liquid water, is 1.9 J/g°C..

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Answer:8

842.46 or to the next whole number

Explanation:

just multiply the mass of iron with the volume mL you have.

The mass of the iron whose volume and density are 111 ml and 7.847 g/cm³ respectively is 871.01 grams.

The product of density and volume of a substance represents its mass. Mathematically -

M = V x ρ

where -

ρ - density

M - mass

V - volume

Given is iron in liquid form. It occupies a total volume of 111 ml.

The mass of liquid iron can be calculated using -

M = V x ρ

Volume of iron [V] = 111 ml = 111 cm³.

Density of iron [ρ] = 7.847 g/cm³

Therefore, we can write -

M = 7.847 x 111

M = 871.01 grams

Therefore, the mass of the iron whose volume and density are 111 ml and 7.847 g/cm³ respectively is 871.01 grams.

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Answer:

What is the difference between the two different reactions shown in the chart above? What can you determine about the role a catalyst plays in a reaction?

Explanation:

Answer:

KNO3 (Potassium Nitrate)

Explanation:

I just know.

Answer:

Explanation:a

Oakk

Compound name:

Bromine chloride

Bond type:

Covalent Bond

Reasoning for Bond type:

Formed between nonmetal and nonmetal atoms

Br (Bromine) is a nonmetal. Also, known as a liquid.

Cl (Chlorine) is a nonmetal. Also, know as a gas.

Use this website for more element information:

https://ptable.com/#Properties

Answer:

it should be  0-0

Explanation:

Answer:

B

Explanation:

Edge 2020

Answer:

B babeeeeeeeeeeeeee

Explanation:

The molecular formula mass of a compound is equal to the sum of the atomic masses of all the atoms in one molecule of the compound. Given that the molecular formula mass of a compound is 60.0 amu,

The molecular formula mass of a compound is 60.0 amu. It is important to note that the actual molecular formula of the compound was not given. Since the molecular formula mass of a compound is equal to the sum of the atomic masses of all the atoms in one molecule of the compound, the molecular formula mass can be used to determine the empirical formula of the compound.For instance, consider the molecular formula mass of glucose, which is C6H12O6. Its molecular formula mass is calculated by adding up the atomic masses of the constituent atoms: 6(12.01 amu) + 12(1.01 amu) + 6(16.00 amu) = 180.18 amu. This means that the molecular formula mass of glucose is 180.18 amu.

However, the molecular formula of a compound may not necessarily be its empirical formula. The empirical formula of a compound is the simplest whole number ratio of atoms of each element in the compound.For example, the empirical formula of glucose can be found by dividing the subscripts in the molecular formula by their greatest common factor: C6H12O6 → CH2O. This means that the empirical formula of glucose is CH2O.In conclusion, the subscripts in the actual molecular formula of a compound cannot be determined from the molecular formula mass alone. More information about the composition of the compound is needed to determine the actual molecular formula.

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The comparison of the potential energy of the cars if they are stopped at points A to point D is C. Potential energy is stored energy, point D is taller so it has more stored energy.

Potential energy is the energy held by an object as a result of its position relative to other objects, internal stresses, electric charge, or other factors. Because any object lifted from its resting position has stored energy, it is referred to as potential energy because it has the potential to do work when released.

Kinetic energy is the energy that an object has as a result of its movement. If we want to accelerate an object, we must apply force to it. Using force requires us to put in effort. After work is completed, energy is transferred to the object, and the object moves at a new constant speed.

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The roller coaster is your favorite ride! but the line is always long! having just studied potential and kinetic energy in physics, you evaluate the energy changes of the cars as they move on the tracks. Compare the potential energy of the cars if they are stopped at points A to point D.

A. Neither have potential energy.

B. The potential energy is the same.

C. Potential energy is greatest at point D.

D. Potential energy is greatest at point A.

Answer:

0.22moles

Explanation:

Given parameters:

Volume of gas = 4.92L

Unknown:

Number of moles  = ?

Condition = STP

Solution

At STP, the number of moles of a given gas is expressed as;

     Number of moles  = \(\frac{volume given}{22.4}\)  

 Number of moles  = \(\frac{4.92}{22.4}\)   = 0.22moles

The isomer of C4H9Br that has only one peak in its 1H NMR spectrum is 2-bromo-2-methylpropane. The isomer of C4H9Br that has only one peak in its 1H NMR spectrum is 2-bromo-2-methylpropane.

This is because the molecule has a plane of symmetry that passes through the bromine atom, dividing the molecule into two identical halves. As a result, all the hydrogen atoms are in identical chemical environments, leading to the presence of only one peak in the 1H NMR spectrum at a chemical shift of d 1.8. In contrast, the other isomers of C4H9Br do not have a plane of symmetry and have distinct chemical environments for their hydrogen atoms, resulting in the presence of multiple peaks in their 1H NMR spectra

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Lower temperature

Let's verify

As per Boyles law

\(\\ \rm\Rrightarrow V\propto \dfrac{1}{P}\)

As per Charles law

\(\\ \rm\Rrightarrow V\propto T\)

\(\\ \rm\Rrightarrow T\propto \dfrac{1}{P}\)

So

At higher altitudes lower the pressure so lower the temperature

The temperature of water vapour rises as a result of the water molecules' increased kinetic energy, which makes them travel more quickly and collide more frequently, raising the temperature.

When the heat is raised (as occurs when water boils, for example), the hydrogen bonds between the water molecules completely disintegrate, allowing the water molecules to escape as gas into the air.

Moreover, as gas molecules exit the liquid, the liquid loses thermal energy. As a result, the liquid's temperature doesn't change when it boils. For instance, water will continue to boil at 100°C (at a pressure of 1 atm or 101.3 kPa).

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Answer:

Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating.

Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating. Hence option B is correct.

Acceleration is defined as the speed at which an object's velocity changes over time. The rate at which an item changes its velocity is known as acceleration, a vector quantity. If an object's velocity is changing, it is accelerating. Acceleration can be expressed as

Acceleration = Displacement / Time

Velocity is defined as the pace at which an item changes position while moving in one direction, as seen from a certain point of view and as measured by a specific unit of time. Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path.

Thus, Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating. Hence option B is correct.

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Explanation:

taking a special juice independent variable

the number of stuck of paper dependent variable

the control group is group B

experimental group is Group A

for more information study on thougtco

The major organic product of the reaction between naphthalene and acetyl chloride in the presence of AlCl\(_{3}\) is 1-acetylnaphthalene.

When naphthalene reacts with acetyl chloride (CH\(_{3}\)C(O)Cl) in the presence of aluminum chloride (AlCl\(_{3}\)) as a catalyst, an acylation reaction occurs. The acetyl chloride undergoes acylation, where the acetyl group (CH\(_{3}\)C(O)-) replaces a hydrogen atom in the naphthalene molecule. This results in the formation of 1-acetylnaphthalene, which is the major product of the reaction. The aluminum chloride acts as a Lewis acid catalyst, facilitating the reaction by generating an electrophilic acylium ion (CH\(_{3}\)C(O)+) that reacts with the aromatic ring of naphthalene.

Therefore, the major organic product of the reaction is 1-acetylnaphthalene.

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To find the molar solubility of substance X, we need to convert the given solubility from milligrams per liter (mg/L) to moles per liter (mol/L). The molar solubility of substance X is 1.28 × 10^(-10) mol/L.

Step 1:

We need to convert 2.4×10−5 mg/L to grams per liter (g/L) by dividing by 1000, which gives us 2.4×10−8 g/L.

Solubility = 2.4 × 10^(-5) mg/L
1 mg = 0.001 g, so:
Solubility = 2.4 × 10^(-5) × 0.001 g/L = 2.4 × 10^(-8) g/L

Step 2:
Next, we need to convert the mass to moles using the molar mass of substance X.

Molar mass = 188 g/mol
Molar solubility =2.4×10−8 g/L ÷ 188 g/mol = 1.28×10−10 mol/L
This is the molar solubility of substance X.

The molar solubility of substance X is 1.28×10−10 mol/L.

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Answer:a moving car

Explanation:

kinetic energy is the energy of motion and motion is occurring when the car is moving