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The values of balanced chemical reaction is w = 1, x = 6, y = 3, and z = 2

To balance the chemical equation:

1. Balancing nitrogen (N):

There are three nitrogen atoms on the left side (Ba₃N₂), so we need to place a coefficient of 3 in front of NH₃:

w Ba₃N₂ + x H₂O → y Ba(OH)₂ + 3 z NH₃

2. Balancing hydrogen (H):

There are six hydrogen atoms on the left side (2 × 3), so we need to place a coefficient of 6 in front of H₂O:

w Ba₃N₂ + 6 H₂O → y Ba(OH)₂ + 3 z NH₃

3. Balancing barium (Ba):

There are three barium atoms on the left side (3 × Ba₃N₂), so we need to place a coefficient of 3 in front of Ba(OH)₂:

w Ba₃N₂ + 6 H₂O → 3 y Ba(OH)₂ + 3 z NH₃

4. Balancing oxygen (O):

There are six oxygen atoms on the right side (6 × OH), so we need to place a coefficient of 3 in front of Ba(OH)₂:

w Ba₃N₂ + 6 H₂O → 3 Ba(OH)₂ + 3 z NH₃

Now the equation is balanced with the following coefficients:

w Ba₃N₂ + 6 H₂O → 3 Ba(OH)₂ + 3 z NH₃

Therefore, w = 1, x = 6, y = 3, and z = 2 would satisfy the balanced chemical equation.

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If kw for the water at 0 is 0.10 , the pH of the water at the freezing point is 1.5.

The kw = 0.10

kw = [OH⁻] [H⁺]

The water is the neutral one. For the water, the hydroxide ion and the hydrogen ion are equals, this is expressed as :

[OH⁻] = [H⁺]

kw =[H⁺] [H⁺]

[H⁺] = 0.316 M

The expression for the pH is as follows :

pH = - log [H⁺]

pH = - log (0.316)

pH = 1.5

Thus, the pH of the water with the kw for the water at 0 is 0.10 is 1.5.

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Answer:

A

help u and it's A

Explanation:

Answer:

23.5 grams of AlBr3 will be produced by 27.20 grams of NaBr

Explanation:

The balanced equation here is

6NaBr + 1AlO3 = 3Na2O + 2AlBr3

6 moles of NaBr are required to produce 2 moles of AlBr3

Mass of one mole of NaBr = 102.894 g/mol

Mass of one mole of AlBr3 = 266.69 g/mol

Mass of 6 moles of NaBr = 6*102.894 g/mol

Mass of two moles of AlBr3 = 2*266.69 g/mol

6*102.894 g  NaBr produces 2*266.69 g of AlBr3

23.5 grams of AlBr3 will be produced by (6*102.894)/(2*266.69 )*23.5 = 27.20 grams of NaBr

Answer:

Jet streams form when warm air masses meet cold air masses in the atmosphere. The Sun doesn't heat the whole Earth evenly. That's why areas near the equator are hot and areas near the poles are cold

The vapor pressure of the aqueous solution containing 10% (by weight) ethylene glycol (62 g/mol) at 25°C can be calculated using Raoult's law.

To determine the vapor pressure of an aqueous solution containing 10% ethylene glycol at 25°C, Raoult's law can be applied. By calculating the mole fraction of ethylene glycol, which is obtained by dividing its weight by its molar mass and dividing by the total weight of the solution, the vapor pressure of ethylene glycol can be determined using Raoult's law.

This law states that the vapor pressure of a component in a solution is equal to the product of its mole fraction and the vapor pressure of the pure component. By substituting the calculated mole fraction and the known vapor pressure of water, the vapor pressure of the solution can be found.

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C2H6 is the gas having the fastest‑moving molecules, on average, at a given temperature because of its lower molecular mass

With the chemical formula C 2H 6, ethane is an organic chemical substance. Ethane is a colourless and odourless gas at ordinary temperature and pressure. Ethane is separated from natural gas on an industrial scale, and it is produced as a by-product of the petrochemical process used to refine crude oil.

The mass of a certain molecule is its molecular mass, which is expressed in daltons. Because different isotopes of an element 30.07 g in 1 mole C2H6 are present in different molecules of the same chemical, their molecular weights might vary. As a result, we state that ethane has a molar mass of 30.07 g/mol (grammes per mole).

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Answer:

+1

Explanation:

To calculate the charge on an ion, we simply use the number of protons and electrons. Protons are the positively charged subatomic particles. The electrons are the negatively charged particles in an atom.

When the number of protons are greater than that of electrons, the ion is positively charged.

When the number of protons are lesser than that of electrons, the ion is negatively charged.

When the number of protons and electrons are equal, the ion is neutral.

Answer Below and top

Charge = Protons - Electrons = 11 - 10 = +1

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Answer:

-2

Explanation:

It should still weigh 300g.

Explanation:

If I'm right, the Law of Conservation of Mass simply means the weight of whatever goes in will be the same when it comes out.

The substances that are aqueous  suspensions are milk and paint.

A suspension refers to a situation in which solid particles are completely distributed in a solution in which they are not dissolved.

Thus, suspensions are heterogeneous mixtures. Sometimes, the suspended particles are not large enough to be visible to the naked eye.

Milk and paint are both examples of a suspension of solid particles in water.

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Milk and paint are the substance from the question that are aqueous suspension.

Therefore, milk and paint is the correct term.

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Answer:

B

Graph 1 is An endothermic reaction and graph 2 is an exothermic reaction

Answer:

There are several sources of errors when reading a thermometer. Some common sources include limitations in digital processing and physical issues with the device itself, errors with the sensor which is often the greatest source of error, and measurement error which can depend on the skill of the operator. An “Err” message can also appear on a thermometer’s display if the sensor is too warm before powering on, if the temperature reading is incomplete, or if there is an internal problem with the thermometer.

Answer:

Answer:

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. Then, via respiration processes, cells use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide is produced as a waste product

Approximately 4.82 × 10²² molecules of oxygen are produced when 6.54 g of potassium chlorite decompose.

To determine how many molecules of oxygen are produced when 6.54 g of potassium chlorite (KClO₃) decompose, you'll need to perform stoichiometric calculations using the balanced chemical equation:

2KClO₃ → 2KCl + 3O₂

First, find the molar mass of KClO₃: (39.10 g/mol for K) + (35.45 g/mol for Cl) + (3 × 16.00 g/mol for O) = 122.55 g/mol.

Next, convert the given mass of KClO₃ to moles: (6.54 g) / (122.55 g/mol) = 0.0534 moles of KClO₃.

Now, use the stoichiometric ratio from the balanced equation: 2 moles of KClO₃ produce 3 moles of O₂, so:

(0.0534 moles KClO₃) × (3 moles O2 / 2 moles KClO₃) = 0.0801 moles of O₂ produced.

Finally, to find the number of molecules, multiply the moles of O2 by Avogadro's number (6.022 × 10²³ molecules/mol):

(0.0801 moles O2) × (6.022 × 10²³ molecules/mol) ≈ 4.82 × 10²² molecules of O₂ produced.

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Answer:

\(\boxed {\boxed {\sf 2.62 \ mol \ N_2}}\)

Explanation:

The relationship between moles and gases is unique. Regardless of the type of gas, there will always be 22.4 liters of gas in 1 mole, as long as it's at STP (standard temperature and pressure).

We can make a ratio using this information.

\(\frac {22.4 \ L \ N_2}{ 1 \ mol \ N_2}\)

Multiply by the given number of moles.

\(58.6 \ L \ N_2 *\frac {22.4 \ L \ N_2}{ 1 \ mol \ N_2}\)

Flip the fraction so the liters of nitrogen cancel.

\(58.6 \ L \ N_2 *\frac {1 \ mol \ N_2}{ 22.4 \ L \ N_2}\)

\(58.6 *\frac {1 \ mol \ N_2}{ 22.4 }\)

\(\frac {58.6 \ mol \ N_2}{ 22.4 }= 2.61607143 \ mol \ N_2\)

The original measurement of liters has 3 significant figures, so our answer must have the same.

For the number of moles calculated, 3 sig figs is the hundredth place. The 6 in the thousandth place tells us to round the 1 to a 2.

\(2.62 \ mol \ N_2\)

58.6 liters of N₂ gas at STP is equal to about 2.62 moles.

Halo stars formed first, then stopped,  Disk stars formed later, and continued forming,  the abundance of heavy elements tell you about the origin of a star.

The solar system is made up of several celestial bodies, known as small bodies or large bodies, that circle around the sun. These bodies are the components of the solar system, and in addition to having various sizes, they also differ from one another in terms of densities and weights. No matter how heavy elements is, it has one thing in common with other elements: most of them have astronomical units of the centre, which are units of length derived from the typical distance between the Earth and the Sun.

what does the abundance of heavy elements tell you about the origin of a star?

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Answer:

2.481cm³

Explanation:

this is general has equation so the formula is

P1V1/T1 = P2V2/T2

At STP, pressure is 1.01*10⁵ and temperature is 273K

((1.20*10³)400)/(250+273) = ((1.01*10⁵)V2/(273)

V2 = 2.481cm³

The electrostatic potential energy between an electron and a proton that are separated by 53pm is 4.27 × 10^-18 J.

The electrostatic potential energy between two charged particles can be calculated using the

formula U = k*q1*q2/r,

where:

k is the Coulomb constant,

q1 and q2 are the charges of the two particles, and

r is the distance between them.

In this case, we have q1 = -1.60*10^-19 C (charge of the electron), q2 = 1.60*10^-19 C (charge of the proton), and r = 53 pm = 5.3*10^-10 m. Plugging these values into the formula, we get:

U = (8.99*10^9 N m2/C2)*(-1.60*10^-19 C)*(1.60*10^-19 C)/(5.3*10^-10 m)

U = 4.27 × 10^-18 J

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Explanation:

A physical change does not change the chemical properties of a compound. Instead a change in state occurs, for example evaporation where a liquid becomes a gas.

Answer:

Physical change

Explanation:

A physical change is a change of matter from one form to another without a change in chemical properties.

Answer:

C12H24

Explanation:

The molar mass of the CH2 unit is 14 g/mole.  The final molecule has multiples of CH2 so that it's molar mass is 168 g/mole.

(168 g/mole molecule)/(14 g/mole Unit) = 12 Units

12 CH2 units would make the molecualr formula:  C12H24

This is more than one structure that has this formula:  Cyclododecane and 1-Dodecene.

Answer:

The displacement is 0.05 meters. The angle between the upward force and the upward displacement is 0 degrees. The work for 1 push-up is approximately. W = 10 N * 0.05 m * cos 0 degrees = 0.5 Joules. If the squirrel does a total of 5.0 Joules of work, then it must have done about 10 push-ups.

Explanation:

A. Inattentional blindness is how we can miss things even if they are clearly visible.

Inattentional blindness is failing to see objects when our attention is directed elsewhere.

A person experiences inattentional blindness or perceptual blindness (occasionally referred to as inattentive blindness) when they are unable to recognize an unexpected stimulus that is right in front of them without the aid of vision problems or deficiencies.

We all occasionally suffer from inattentional blindness, which might occur in the following circumstances: You believe you are paying attention to the road, but you miss the automobile swerving into your lane of traffic because you were distracted, which leads to a collision. You are taking in a historical drama with a Greek setting.

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The color of white light at the wavelength of minimum absorption is black.

This makes sense because absorption is the process of converting light energy into a different form of energy, such as heat. When light is absorbed by a material, it is not transmitted through the material but is instead converted into another form of energy. If a material absorbs all of the wavelengths of light that make up white light, then the material appears black because there is no light left to reflect off of the material's surface.

Absorption occurs when the energy of a photon matches the energy required to excite electrons in a material to higher energy levels. If a material is transparent at a certain wavelength, it means that the energy of the photons at that wavelength is not sufficient to excite electrons to higher energy levels. Therefore, no absorption occurs, and the material appears transparent. On the other hand, if a material absorbs light at a certain wavelength, it means that the energy of the photons at that wavelength is sufficient to excite electrons to higher energy levels. Therefore, the material appears opaque at that wavelength.

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You have two gases, A and B, each in its own container of equal volume, pressure, and temperature. As a result, each gas must contain the same number of moles.

Because the two temperatures are the same, the two samples' average kinetic energies are also the same.

Kinetic energy is a type of energy that a moving object or particle possesses. When an item undergoes work—the transfer of energy—by being subjected to a net force, it accelerates and acquires kinetic energy. A moving object or particle's kinetic energy, which depends on both mass and speed, is one of its properties. The type of motion could be vibration, rotation on an axis, translation (or travel along a path from one place to another), or any combination of these.

A body's translational kinetic energy, or 1/2mv2, is equal to one-half the product of its mass, m, and the square of its velocity, v. In chemistry, the moles, sometimes spelled mol, is a common scientific measurement unit for significant amounts of very small objects like atoms, molecules, or other predetermined particles. The mole represents 6.02214076 1023 units, which is a very huge number.

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