The point where ground water reaches the surface and pours out is called a summer? true or false

Answer: C

Explanation: The assumption that pairing of electrons reduces orbital stability is not part of Bohr's theory.

Bohr's theory of atomic structure mainly focuses on the behavior of electrons in the atom and makes several key assumptions:

a) Energy is not dissipated when electrons move in an orbital (postulate of quantization)

b) Electrostatic force balances force tending to throw electron out of orbital (Coulomb's law)

d) Electrons move from one orbital to another by either absorbing or radiating energy (postulate of transitions)

Therefore, the correct answer is option (c) Pairing of electrons reduces orbital stability.

The new volume of the gas is 62.2 L

Charles's Law, also known as the Law of volumes, states that at a constant pressure, the volume of a gas is directly proportional to its absolute temperature. This means that as the temperature of a gas increases, its volume will also increase, and vice versa.

Mathematically, it can be expressed as: V/T = k, where V is the volume of the gas, T is its absolute temperature, and k is a constant.

We know that;

V1/T1 = V2/T2

V1T2 = V2T1

V2 = 60 * 313 /301.5

V2 = 62.2 L

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The observation of a smaller outside hole than inside leads Becca to infer that an impact from the outside caused the hole, with a larger object striking and passing through the window from the inside.

From the observation that the hole in the window is smaller on the outside than on the inside, Becca, as a forensic technician, might deduce the following:

The hole was caused by an impact from the outside: The smaller outside hole suggests that the force that created the hole originated from the outside and exerted more pressure on the window surface facing inward.

The object causing the hole was larger on the inside: The discrepancy in hole sizes implies that the object that struck the window had a larger size or diameter on the inside, and as it penetrated the glass, it compressed or fragmented the glass, resulting in a larger hole on the inside.

The object may have passed through the window: The difference in hole sizes indicates that the object may have penetrated the window, potentially passing through to the inside. This could suggest a break-in or an incident involving the window being struck from the outside.

Overall, the observation of a smaller outside hole than inside leads Becca to infer that an impact from the outside caused the hole, with a larger object striking and passing through the window from the inside.

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Answer:

basalt

Explanation:

you hav a calculater u know

The specific characteristics of the layers that make up the Earth's atmosphere affect the types of wavelengths that are reflected. Troposphere, stratosphere, and mesosphere are the three layers.

The stratosphere, which contains the ozone layer, is the next layer. The sun's dangerous UV light is absorbed by ozone, keeping it from reaching the surface of the Earth. Visible light and some infrared radiation can travel through this layer.

The mesosphere is located above the stratosphere, where the majority of meteoroids burn up as they enter the atmosphere of the Earth.

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The theoretical yield of \(Pl_{3}\) from the given reaction is 73.2 grams.

What is theoretical yield ?

To calculate the theoretical yield of \(Pl_{3}\), we first need to determine which reactant is limiting. We can do this by calculating the amount of product that would be formed from each reactant, and comparing the values.

From the balanced chemical equation, we can see that 2 moles of P reacts with 3 moles of \(I_{2}\) to produce 2 moles of \(Pl_{3}\). So, the number of moles of P and \(I_{2}\) present in the reaction can be calculated as:

moles of P = mass of P / molar mass of P

moles of P = 27.0 g / 30.97 g/mol

moles of P = 0.871 mol

moles of \(I_{2}\) = mass of \(I_{2}\) / molar mass of \(I_{2}\)

moles of \(I_{2}\) = 68.0 g / 253.81 g/mol

moles of \(I_{2}\) = 0.268 mol

Now, we can use the stoichiometry of the balanced chemical equation to calculate the number of moles of \(Pl_{3}\) that can be produced from each reactant:

mol of \(Pl_{3}\) produced from P = (0.871 mol P) / (2 mol P per 2 mol \(Pl_{3}\)) * (2 mol \(Pl_{3}\) / 2 mol P)

mol of \(Pl_{3}\) produced from P = 0.871 mol \(Pl_{3}\)

mol of \(Pl_{3}\) produced from \(I_{2}\) = (0.268 mol \(I_{2}\)) / (3 mol \(I_{2}\) per 2 mol \(Pl_{3}\)) * (2 mol \(Pl_{3}\) / 1 mol \(I_{2}\))

mol of \(Pl_{3}\) produced from \(I_{2}\) = 0.178 mol \(Pl_{3}\)

Since the amount of \(Pl_{3}\) produced is limited by the amount of \(I_{2}\), \(I_{2}\) is the limiting reactant. Therefore, the theoretical yield of \(Pl_{3}\) is the amount of \(Pl_{3}\) that would be produced if all of the limiting reactant (\(I_{2}\)) were completely consumed:

mass of \(Pl_{3}\) = moles of \(Pl_{3}\) * molar mass of \(Pl_{3}\)

mass of \(Pl_{3}\) = 0.178 mol * 411.81 g/mol

mass of \(Pl_{3}\) = 73.2 g

Therefore, the theoretical yield of \(Pl_{3}\) from the given reaction is 73.2 grams.

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The balanced equation of the reaction is:C5H12 + 8O2 → 5CO2 + 6H2OFrom the equation, it shows that 8 moles of oxygen is needed to burn 1 mole of pentane. The volume of oxygen needed for the entire burning process of 18 grams of pentane in normal conditions is 44.86 L.

First, let's convert 18 grams of pentane to moles using the molar mass of pentane (C5H12) as follows:Mass of pentane = 18 g Molar mass of pentane (C5H12) = 5(12) + 12(1) = 72 g/molNumber of moles of pentane = Mass/Molar mass = 18/72 = 0.25 moles

Now, to find the volume of oxygen needed for its entire burning process in normal conditions, we'll use the Ideal Gas Law equation as follows: n = PV/RT where :n = number of moles of the gas V = volume of the gas (in liters)P = pressure of the gas (in atmospheres)R = Universal Gas Constant = 0.0821 L· atm /K· molT = temperature of the gas (in Kelvin)From the equation, we know that 8 moles of oxygen are needed to burn 1 mole of pentane.

Therefore, the number of moles of oxygen needed to burn 0.25 moles of pentane will be: n = 8 × 0.25 = 2 moles The temperature and pressure are normal conditions, which is 0°C and 1 atm respectively. Let's convert the temperature to Kelvin:T = 0 + 273 = 273 K Substituting the values into the Ideal Gas Law equation gives: P × V = nRT Rearranging the equation gives: V = nRT/P  Substituting the values, we get: V = 2 × 0.0821 × 273/1V = 44.86 L

Therefore, the volume of oxygen needed for the entire burning process of 18 grams of pentane in normal conditions is 44.86 L.

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Answer:

it was formed From gas and dust

Explanation:

correct me if I'm wrong

Answer:

solid,liquids,gases & plasma

Answer:

1.510 × 10⁻¹³ g

Explanation:

Step 1: Given data

Number of atoms of vanadium: 1.000 × 10⁹ atoms

Step 2: Calculate the molecules of V₂O₅ that contain 1.000 × 10⁹ atoms of V

Each molecule of V₂O₅ has 2 atoms of V.

1.000 × 10⁹ atom V × (1 molecule V₂O₅/2 atom V) = 0.5000 × 10⁹ molecule V₂O₅

Step 3: Calculate the moles corresponding to 0.5000 × 10⁹ molecules of V₂O₅

We will use Avogadro's number: there are 6.022 × 10²³ molecules of V₂O₅ in 1 mole of V₂O₅.

0.5000 × 10⁹ molecule × (1 mol/6.022 × 10²³ molecule) = 8.303 × 10⁻¹⁶ mol

Step 4: Calculate the mass corresponding to 8.303 × 10⁻¹⁶ moles of V₂O₅

The molar mass of V₂O₅ is 181.88 g/mol.

8.303 × 10⁻¹⁶ mol × 181.88 g/mol = 1.510 × 10⁻¹³ g

Answer:

BUDDY YO

Explanation:

Answer:

A

Explanation:

Answer:

A. Moving electrons generate magnetic forces

Explanation:

This is because when electrons or electric current flows in a wire it creates a magnetic field around the wire.

Answer: 2.5 lit

Explanation:

Answer:

it down their!!!!!!!!!!1

Explanation:

The new volume  

=

23.2

L

Answer

0 gram

Explination

1 liter of oxygen in grams 1 liter of oxygen equals 0 gram

Answer:

This layer of cells is best classified as a tissue.

Explanation:

When a group of cells comes together to perform a specific function, they are called tissues. It's when a group of tissues comes together to perform a specified function that they become an organ.

A Mole should not be considered a base unit in the SI system.

SI system is a metric system which is also known as the International system of units. Most of the measurements across the globe is measured by SI system. SI units are used in nearly every part of the globe, such as science, technology, mathematics and many more. The system includes coherent units known as derived units.

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Answer:

Cl < S < P < Na

Explanation:

We have to understand the trend for effective nuclear charge before answering the question;

The periodic table tendency for effective nuclear charge: Increase across a period (due to increasing nuclear charge with no accompanying increase in shielding effect). Decrease down a group (although nuclear charge increases down a group, shielding effect more than counters its effect).

Based on this, the elements can be arranged in the following order;

In decreasing order;

Cl < S < P < Na

The volume of the gas at STP would be 23.93 liters.

The volume of gas at STP (Standard Temperature and Pressure), we need to use the Ideal Gas Law, which states that PV = nRT, where P is pressure, V is volume, n is the number of moles of gas, R is the gas constant, and T is temperature. First, we need to calculate the number of moles of gas in the initial sample. We can use the formula n = PV/RT, where P is the initial pressure, V is the initial volume, R is the gas constant, and T is the initial temperature.
n = (2.31 atm) x (25.15 L) / [(0.0821 L atm/mol K) x (201 + 273.15 K)]
n = 1.067 moles

Now, we can use the molar volume of gas at STP, which is 22.4 L/mol, to calculate the volume of gas at STP.
V = n x 22.4 L/mol
V = 1.067 moles x 22.4 L/mol
V = 23.93 L
Therefore, the volume of the gas at STP would be 23.93 liters.

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3 moles of H2 are needed to produce 3 moles of water.

Moles are a unit of measurement that are used to determine how much of a chemical there is. The amount of a material that has the same number of particles (atoms, molecules, ions, etc.) is said to be one mole.

In order to create water (H2O), hydrogen gas (H2) and oxygen gas (O2) must react. The balanced chemical equation for this reaction is:

2H2 + O2 -> 2H2O

The stoichiometry of this reaction states that 2 moles of hydrogen gas and 1 mole of oxygen gas combine to form 2 moles of water. Therefore, we require 3/2 * 2 = 3 moles of hydrogen gas in order to make 3 moles of water.

So, 3 moles of H2 are needed to produce 3 moles of water.

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Answer:

New element formed by combination of reactants.

Explanation:

Synthesis refers to the production of a new product from the combination of two or more reactants. Analysis, synthesis, and evaluation are related to each other because in synthesis a new product is formed while in analysis, we examine the structure of the new product in detailed and in evaluation, we assess the quantity of a new product. So analysis and evaluation gives a lot of information about the product which is formed in synthesis.

A, the energy released by fusion

happy to help, have a great day! :)

The concentration of the solution is  \(26.1 g CsCl/100 g H_2O\).

We have  34.29 mL of water, whose density is 0.9975 g/mL. The corresponding mass of water is:

\(34.29 mL \times \frac{0.9975g}{mL} = 34.20 g\)

8.91 g of CsCl (solute) are in 34.20 g of water (solvent). We can calculate the concentration of Bam's solution in units of g solute/100 g solvent, using the following expression.

\(C = \frac{mass\ solute }{mass\ solvent } \times 100 = \frac{8.91 g }{34.20 g } \times 100 = 26.1 g CsCl/100 g H_2O\)

The concentration of the solution is  \(26.1 g CsCl/100 g H_2O\).

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The fact that hydrogen peroxide slowly decomposes over time without the addition of any other chemical indicates that the hydrogen peroxide solution that can be purchased in stores is not pure and has been stabilized with other chemicals to prevent it from breaking down too quickly. This is common practice, as pure hydrogen peroxide is unstable and can be dangerous to handle.

One potential safety hazard associated with hydrogen peroxide solutions that have been stabilized with other chemicals is that they can sometimes release oxygen gas when they come into contact with other substances. This can cause the solution to bubble and froth, which can make it difficult to measure and handle safely. In extreme cases, the release of oxygen gas can cause the solution to become pressurized and explode. It is important to handle hydrogen peroxide solutions with care and to follow the instructions on the label to avoid potential hazards.

Decreasing temperature and removing H₂(g) will shift the equilbrium position to the left.

1) The Le Chatelier Principle states that a reduction in volume will increase pressure, which will cause the reaction to move in a direction where there are fewer gaseous molecules. Both sides of this space have an equal quantity of gaseous molecules. Equilibrium won't be affected as a result. So, there is no effect on the equilibrium.

2) According to Le Chatelier's Principle, a change in temperature will cause a response to alter its behavior and generate heat. Because the forward reaction is endothermic in nature, the backward reaction will be preferred. After then, the equilibrium moves to the reactant side.

3) The Le Chatelier Principle states that when the temperature rises, the reaction will change to one that absorbs heat. The forward reaction will be favored because it is endothermic in nature. After then, equilibrium shifts to the product side.

4) The Le Chatelier Principle states that the reaction will change its course if the reactant is taken away. After then, the equilibrium moves to the reactant side.

5) Removing a solid or liquid has no effect on the equilibrium. Equilibrium is not affected, thus.

6) There is no effect of the catalyst on equilibrium. Equilibrium is not affected, thus.

7) The Le Chatelier Principle states that when reactants are added, the reaction advances in the direction of the result. After then, equilibrium shifts to the product side.

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Despite having similar minerals plagioclase feldspar and pyroxene and chemical compositions, gabbro and basalt are two distinct igneous rocks.

Dacite is a fine-grained extrusive rock that is similar to andesite in general but has more quartz and less calcic plagioclase than andesite; Many claim that it is granodiorite's extrusive counterpart.

Andesite and diorite are comparable rocks. They are found in the same places and contain the same minerals. Their cooling rates and grain sizes are what differentiate them. Within the Earth, diorite slowly crystallized.

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Answer:

B

Explanation:

Protons are located in the nucleus, which takes out c

Electrons are in specific shells, so b is the answer