define atmpospheric pressure

The killer apparently shot the three victims as a result of a disagreement over a parking space. The extreme overreaction to a disagreement over a parking space could potentially be explained by reactive or impulsive aggression.

Reactive aggression refers to aggressive behavior that is triggered by a perceived threat or provocation, often resulting in an immediate and impulsive response. In this case, the killer's response of shooting the three victims can be seen as an impulsive act driven by anger or frustration in the heat of the moment. It is important to note that this analysis is based on the information provided and assumes that the aggression displayed by the killer was disproportionate to the situation. Other factors, such as underlying psychological issues or personal history, could also contribute to such extreme behavior.

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Answer:

Explanation:

In the equilibrium:

CO(g) + H₂O(g) ⇄ CO₂(g) + H₂(g)

Kc is:

Kc = 1.845 = [CO₂] [H₂] / [CO] [H₂O]

Where [] are equilibrium concentrations of each species

Initial concentrations:

[CO] = 0.500mol / 1.00L = 0.500M

[H₂O] = 0.500mol / 1.00L = 0.500M

In equilibrium, concentrations will be:

[CO] = 0.500M - X

[H₂O] = 0.500M - X

[CO₂] = X

[H₂] = X

Where X is reaction coordinate. The amount of reactant that reacts producing products.

Replacing in Kc expression:

1.845 = [CO₂] [H₂] / [CO] [H₂O]

1.845 = [X] [X] / [0.500M - X] [0.500M - X]

1.845 = X² / X² - X + 0.25

1.845X² - 1.845X + 0.46125 = X²

0.845X² - 1.845X + 0.46125 = 0

Solving for X:

X = 0.288M; Right solution

X = 1.9M; False solution: Produce negative concentrations.

Replacing, equilibrium concentrations are:

[CO] = 0.500M - X = 0.212M

[H₂O] = 0.500M - X = 0.212M

[CO₂] = X = 0.288M

[H₂] = X = 0.288M

The number of mole of oxygen gas, O₂ in the cylinder given the data is 0.5 mole

The mole of a substance is related to it's mass and molar mass according to the following equation:

Mole = mass / molar mass

From the question given, the following data were obtained:

Mole = mass / molar mass

Mole of O₂ = 16 / 32

Mole of O₂ = 0.5 mole

Complete question

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Answer:

Activation energy, in chemistry, the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo a chemical transformation or physical transport.

In oxidation-reduction reactions, energized electrons are transferred from one reactant to another.

Redox is a sort of chemical reaction where the substrate's oxidation states change. An rise in an object's oxidation state or the loss of electrons is referred to as oxidation. Reduction is the increase in electrons or a reduction in the oxidation state of an element's chemical constituents or atoms.

The reduction and oxidation reactions that take place at electrodes are referred to as electronation and deelectronation, respectively, by the electrochemist John Bockris.  Protonation and deprotonation are comparable terms.  Despite the fact that the IUPAC has acknowledged the word "electronation," they have not yet been extensively embraced by chemists worldwide.

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Answer:

The energy required to evaporate a cup of water (270 g) is approximately 2,215 joules. This is calculated by multiplying the mass of the water by the latent heat of vaporization (2.26 kJ/g) for water.

Explanation:

Answer:2.26 kj

Explanation:

Answer:

ΔS⁰ = -181.1J/molK

Explanation:

ΔS⁰ of a reaction is defined as the sum of the entropies of the reactants times its reaction coefficient minus the sum of the entropies of the products times its reaction coefficient. For the reaction in the problem:

ΔS⁰ = 2*S{NaCl(s)} - (2*S{Na(s)}+S{Cl2(g)})

ΔS⁰ = 2*72.1J/molK - (2*51.1J/molK + 223.1J/molK)

35.84 is the answer

When adding using the significant figure rules, first you have to identify which term is the limiting term. This can be determined by identifying with number has the least amount of numbers after the decimal point.

This makes 4.26 the limiting term. This means your final answer should be rounded up so there are also 2 numbers after the decimal point.

31.580 + 4.26= 35.840

Round up so there are only two numbers after the decimal point, which leaves you with the answer 35.84

Answer:

24.87× 10²³ atoms of Ni

Explanation:

Given data:

Number of atoms of Ni= ?

Number of moles of Ni = 4.13 mol

Solution:

we will calculate the number of atoms of Ni by using  Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

4.13 mol ×  6.022 × 10²³ atoms /1 mol

24.87× 10²³ atoms of Ni

Option (b) is correct. The molarity of the resulting solution is 0.652 M. This is calculated using the expression of ideal gas equation and molarity.

12.7 l of argon at 33°c and 735 torr are dissolved in enough water to give a final volume of 0.750l. so,

P = 735.0 torr

 = (735.0/760) atm.

 = 0.9671 atm.

V = 12.7 L

T = 33.0 o C

 = (33.0+273) K

 = 306 K

We can find the  number of moles using ideal gas equation. The ideal gas law, also called the general gas equation, is the equation of state of a hypothetical ideal gas. It is a good approximation of the behavior of many gases under many conditions. The ideal gas equation is,

         P * V = n*R*T

        0.9671 atm. * 12.7 L = n * 0.08206 atm. L/mole . K * 306 K

        n = 0.4891 mole

Now, we will calculate Molarity. Molarity or molar concentration is the number of moles of solute per liter of solution, which can be calculated using the following equation,

Molarity = number of mole / final volume

 = 0.4891 mole / 0.750 L

 = 0.652 M

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A 2+ cation of a certain transition metal has six electrons in its outermost d subshell. This transition metal is Iron (Fe) .

To identify the transition metal with a 2+ cation having six electrons in its outermost d subshell, we need to understand the electron configuration of transition metals and their cations.
A transition metal is an element found in the d-block of the periodic table, and these metals are characterized by having partially filled d orbitals. The outermost d subshell refers to the d orbitals of the highest energy level in the electron configuration.
In this case, we're looking for a transition metal with a 2+ cation that has six electrons in its outermost d subshell. This means the neutral atom would have eight electrons in its outermost d subshell, as the 2+ cation loses two electrons.
The transition metal that fits this description is Iron (Fe), which has an atomic number of 26. Its electron configuration is [Ar] 4s2 3d6 for the neutral atom. When it forms a 2+ cation (Fe2+), it loses the two 4s electrons, resulting in the electron configuration [Ar] 3d6 (noble gas configuration) or 1s2 2s2 2p6 3s2 3p6 3d6 (electronic configuration) . This Fe2+ cation has six electrons in its outermost d subshell, making it the transition metal you are looking for.

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When comparing the density of metals to that of liquids, the percentage error is more likely to rise.

A liquid's density is a gauge of how heavy it is relative to the amount being measured. The liquid that weighs heavier is more dense if you weigh two liquids with similar volumes or amounts. A substance less dense than water will float when it is gradually introduced to the water's surface.

The mass to volume ratio of an object determines its density. The unit of density is frequently grams per cubic centimeter (g/cm3). Keep in mind that the volume is measured in cubic centimeters, not grams (the same volume as 1 millilitre).

Direct measurement of a solid's volume is impossible. A solid, especially one with an irregular shape, has a higher potential for measurement error than a liquid.

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Suppose 5.0 mol of antimony (III) fluoride is added to 10.0 mol of carbon tetrachloride, and from the 100% reaction there are the equivalents of 0 moles of SbF₃, 5.0 moles of SbCl₃, 0 moles of CCl₄, and 15.0 moles of CClF₂.

A balanced reaction is one where the reactants and products are present in equal amounts, and if the 100% reaction takes place, then the reactant sides have 1 mol of SbF₃ and 3 mol of CCl₄ that make the product of 1 mol of SbCl₃ and 3 mol of CClF₂. After the 100% reaction, all the reactants get converted into the product. The complete reaction is the below.

SbF₃ + 3CCl₄ → SbCl₃ + 3CClF₂

Hence, suppose  5.0 mol of antimony (III) fluoride is added to 10.0 mol of carbon tetrachloride, and from the 100% reaction there are the equivalents of 0 moles of SbF₃, 5.0 moles of SbCl₃, 0 moles of CCl₄, and 15.0 moles of CClF₂.

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Answer: All of these are examples of matter

Explanation:
Matter is any substance that has mass and takes up space by having volume. All examples have mass (including air) and take up space, so the answer is, "All of these are examples of matter."
Hope this helps.

The specific heat capacity of the pan in the calorimeter During your investigation, you perform an experiment, you place 2.0 kg of water at 25.0°C in a calorimeter, heat your 3.0 kg pan to 300.0 °C is 0.449 kJ/kg°C.

We must first figure out how much heat the water has absorbed. The heat released by the pan must then be determined using the energy conservation concept.

Utilizing the formula:

Q = m * c * ΔT

There are:

(Mass of water) m = 2.0 kg

Water has a specific heat capacity of 4.18 kJ/kg°C.

ΔT = (63.2°C - 25.0°C) = 38.2°C

Q=2.0 kg*4.18 kJ/kg°C*38.2°C = 319.22 kJ

The heat released by the pan must then be determined using the energy conservation concept. It is safe to presume that the water and the calorimeter have absorbed all of the heat that the pan has released. Q is a formula that can be used.

Q = m * c * ΔT

There are:

m = 3.0 kg (the pan's mass).

In terms of the pan's specific heat capacity, c =?

ΔT = (300.0°C - 63.2°C) = 236.8°C

Q = 319.22 kJ

Inputting the values results in:

319.22 kJ = (3.0 kg) * c * (236.8°C)

To solve for c, we obtain:

3.0 kg times 236.8°C times 319.22 kJ equals 0.449 kJ/kg°C.

In this instance, the pan is most likely composed of cast iron.

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Spontaneous redox reaction occurs when electrons are transferred to an element that has a greater tendency to accept them from an element that has a greater tendency to donate them.

 A spontaneous redox reaction occurs when electrons are transferred to an element that has a greater tendency to accept them from an element that has a greater tendency to lose them.In simpler terms, redox reactions involve the transfer of electrons from one substance to another. In a redox reaction, electrons can never be “lost”; if one substance loses electrons, another substance must gain an equal number of electrons.

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Answer:

true

Explanation:

as you get closer to the center it gets hotter

Answer:

1.40

Explanation:

Study Island

The question is incomplete, the complete question is;

The Lewis representation above depicts a reaction between hydrogen (blue) and a main-group element from group______ (red).

In this representation, each Y atom needs ______ electron(s) to complete its octet, and gains these electrons by forming______ bond(s) with atoms of H .

There are ______ unshared electron pair(s) and _______bonding electron pair(s) in the product molecule.

The bonds in the product are _________ (Ionic or Covalent)

Answer:

1) 16

2) 2 electrons

3) 2 bonds

4) 2 unshared pairs of electrons

5) 2 bonding pairs of electrons

6) The bonds in the product are covalent

Explanation:

Group sixteen elements have six electrons on their outermost shell. These include two unshared pairs of electrons and two unpaired electrons. These two unpaired electrons can now be covalently bonded to two hydrogen atoms to give H2Y. The compound H2Y has two lone pairs and two bond pairs of electrons.

H2Y can be a general formula for all hydrides of group 16. They are all very similar in structure but gradually differ in physical and chemical properties according to the graduated variation observed down the group.

The molecule has been \(\rm H_2Y\), where the two bonds have been formed for the sharing of 2 electrons pair between the H and Y atom.

The main group element that has the ability to form \(\rm H_2Y\) type of structure has been Group 16.

The atom required 2 electrons to complete its octet, and in order to gain two electrons, the atom form 2 bonds with the H, resulting in \(\rm H_2Y\).

The atom forms bond with the two H atoms, thus there has been the presence of two unshared electrons pair. The bonding electrons pair are also two in the molecule.

The bond has been formed with the sharing of the electron pair. Thus it has been a covalent bond.

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Answer:

Because force is what causes things to move or change while volactiy  is when you add more energy and  the things volactiy will change.

Explanation:

Answer:

Explanation:

When you use electricity to charge your car, you can integrate renewable resources like solar into the fueling process. Without solar, your electric vehicle is still effectively running off of fossil fuels – it's just the fossil fuels utilized at the power plant and not within your engine.

Fossil fuels include substances like natural gas, coal, and oil. It is possible for electric cars to run on these fossil fuels. Fossil fuels like coal are burnt up to generate electricity. So when cars run on electricity, they are indirectly tapping into fossil fuels.

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The empirical formula represents the simplest whole number ratio of atoms in a compound. To identify the empirical formula, we need information about the composition of the compound in terms of the elements present. Among the given answer choices, the correct empirical formula is B. b4h10, representing the compound boron tetraboride.

To determine the empirical formula, we consider the ratios of the different elements present in the compound. Let's evaluate the answer choices:

A. b2cl2: This represents a compound with boron (B) and chlorine (Cl). The ratio of boron to chlorine is 2:2, simplifying to 1:1. The empirical formula for this compound would be BCl.

B. b4h10: This compound consists of boron (B) and hydrogen (H). The ratio of boron to hydrogen is 4:10, which simplifies to 2:5. Thus, the empirical formula for this compound is B2H5.

C. na2po4: This compound includes sodium (Na), phosphorus (P), and oxygen (O). The ratio of sodium to phosphorus to oxygen is 2:1:4, which is already in its simplest form. Therefore, the empirical formula for this compound is Na2PO4.

D. al2cl6: This compound contains aluminum (Al) and chlorine (Cl). The ratio of aluminum to chlorine is 2:6, which simplifies to 1:3. Hence, the empirical formula for this compound is AlCl3.

Among the given answer choices, the compound with the empirical formula B2H5 is the correct option.

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All of the properties such as ice floating on water, while most solids would sink when placed in its liquid are all due to the structure of the compounds.

The structure of the compounds includes the bonding angle, the type of bonds, the size of the molecule,  the interactions between the molecules etc.  Slight changes in the chemical structure and affect the properties if the compound.

Isomeric compounds with the same  chemical formula but different structures can have different melting and boiling point and differ in reactivity and flammability.

Another common change in isomers are with the double bonds.  A double bond can be in the cis formation or in the trans formation, and this will affect its properties as trans isomers will be having high melting point than the cis isomer.

Thus, structure of compounds  do determine the properties of the compounds.

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Answer:

all of the above

Explanation:

Answer:

All of the above

Explanation:

Prior to the montreal CFC production ban, all of these products released CFCs into the atmosphere. Some old air conditioner still release CFC so please be sure to dispose of them as CFC kills the ozone layer.

To determine the order of the reaction with respect to the ligand and substrate, we can use the method of initial rates.

For the substrate, we keep the concentration of the ligand constant at 1.0 M and vary the substrate concentration to get the following initial rates:

[substrate] (M) | [ligand] (M) | rate (M/s)
--- | --- | ---
1.0 | 1.0 | 5
5.0 | 1.0 | 25
10.0 | 1.0 | 50

When we double the substrate concentration from 5.0 M to 10.0 M, we see that the rate of the reaction also doubles. This suggests that the reaction is first order with respect to the substrate.

For the ligand, we keep the concentration of the substrate constant at 5.0 M and vary the ligand concentration to get the following initial rates:

[substrate] (M) | [ligand] (M) | rate (M/s)
--- | --- | ---
5.0 | 1.0 | 25
5.0 | 5.0 | 125
5.0 | 25.0 | 625

When we increase the ligand concentration from 1.0 M to 5.0 M, we see that the rate of the reaction increases by a factor of 5. When we increase the ligand concentration from 5.0 M to 25.0 M, we see that the rate of the reaction increases by a factor of 5 again. This suggests that the reaction is second order with respect to the ligand.

Therefore, the rate equation for this reaction is:

Rate = k [substrate]^1 [ligand]^2

where k is the rate constant.

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here is your answer....