If 5.00 L of methane gas/CHa) reacts completely with oxygen at a pressure of 2.5 atm and a temperature of 298 K, how many grams of carbon dioxide are produced?

To convert minutes to hours we divide the minutes by 60. So if we divide 3 by 60 we get 0.05 hours.

We know that in hour, there are 60 minutes so if we go from minutes to hours then we have to divide the number by 60 and when we go from hours to minutes we multiply with the same 60 number.

So we can conclude that to convert minutes to hours we divide the minutes by 60. So if we divide 3 by 60 we get 0.05 hours.

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Answer:

this is your answer hope it helps you

Explanation:

It should be decreasing, and the potential energy increasing, since Law of Conversation of Energy, right?

Also, if you think about what happens when it goes down, it loses potential and gains kinetic, so maybe the opposite should happen when it goes up.

Answer:

it's decreasing

Explanation:

as you know a roller coaster loses speed as it ascends and the kinetic energy is proportional to the speed according to it's formula

KE=(mv^2)/2

where m is the mass and v is the speed

In the context of atomic orbital (AO) wavefunctions, the terms "radial node" and "nodal plane" refer to different aspects of the wavefunction's behavior.

A radial node is a region in the AO wavefunction where the probability of finding an electron is zero along the radial direction. In other words, it represents a spherical shell where the electron is unlikely to be found. The number of radial nodes is determined by the principal quantum number (n) of the orbital. For example, the 2s orbital has one radial node, while the 2p orbital has no radial nodes.

On the other hand, a nodal plane is a flat plane within the AO wavefunction where the probability of finding an electron is zero along a particular direction. It represents a surface that divides the orbital into two regions of opposite phases. The number of nodal planes is determined by the angular quantum numbers (l and m) of the orbital. For example, the 2s orbital has no nodal planes, while the 2p orbital has one nodal plane (the xz or yz plane).

Radial nodes arise from the radial part of the wavefunction because they depend on the distance from the nucleus. The radial part determines the distribution of the electron density as a function of distance, and the nodes correspond to regions where the density drops to zero.

On the other hand, nodal planes arise from the angular part of the wavefunction because they depend on the orientation and shape of the orbital. The angular part describes the angular distribution of the electron density around the nucleus, and the nodal planes correspond to regions where the phase of the wavefunction changes sign.

In summary, radial nodes are related to the distance from the nucleus and arise from the radial part of the wavefunction, while nodal planes are related to the orientation and shape of the orbital and arise from the angular part of the wavefunction. The 2s orbital has one radial node and no nodal planes, while the 2p orbital has no radial nodes and one nodal plane.

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Salt suitable for sprinkling on food at meals.

Answer:

change an object's motion. So basically it can cause an object to move, change direction, or stop moving.

Explanation:

Answer:

Pore spaces filled with water

The percentage of the propionic acid that is dissociated is 13.76 %.

The concentration of the propanoic acid, C₂H₅COOH = 0.61 × 10⁻³ M

The chemical equation is as :

              C₂H₅COOH    ⇄    C₂H₅COO⁻ + H⁺

Initial              c                               0           0

At equ.         c - cα                         cα          cα

The value of the dissociation constant of the propionic acid, ka = 1.34 × 10⁻⁵.

ka = (cα)²/ ( c- cα)

1.34 × 10⁻⁵ =  (0.61 × 10⁻³ × α²) / 1 - α

α = 0.1376

The percentage dissociation of the propionic acid = 0.1376 ×100%

The percentage dissociation of the propionic acid  = 13.76 %

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This question is incomplete, the complete question is :

A student prepares a 0.61 × 10⁻³ M aqueous solution of propionic acid C2H5CO2H. in a aqueous solution of propionic acid , what is the percentage of propionic acid that is dissociated? you can find some data that is useful for solving this problem in the aleks data resource.

Answer:  Detailed problem with lots of assumptions.  Please see below.  Percent yield is 100% (!?, so check my work).

Explanation:

Some information is missing from the problem statement.  I'll make some assumptions to solve the problem, so this answer depends on those assumptions.

"Calcium carbobnate" is CaCO3, not CaCO, which is obtained by calcining (heating) CaCO3:

  CaCO3 = CaO + CO2

The CaO can then be reacted with SO2 to form calcium sulfate, CaSO4 (not CaSO, as per the following balanced equation:

2CaO + 2SO2 + O2 = CaSO4

[Note:  It also reacts with any SO3 molecules bouncing around, as does happen in flue gases to also form CaSO4]

The following assumes we have 255 grams of CaCO3, not CAC, whatever that stands for.

We have 135g of SO2, not SO.

This also assumes that it is CaSO4 that is produced (not CaSO), 198 grams.

Since is a two step reaction sequence, we need to first calculate the moles of Ca) produced from the CaCO3.  It is a 1:1 molar ratio, and we have (255g/100.1g/mole) = 2.548 moles of CaCO3.  This will produce 2.548 moles of CaO, for use in the second reaction.

2CaO + 2SO2 + O2 = 2CaSO4

This tells us we'll produce 1 mole of CaSO4 for every 2 moles of CaO, a 1:2 ratio.  It also states that 2 moles of SO2 are consumed for every 2 moles CaO, a 1:1 ratio.

We have 2.548 moles of CaO, so would need the same moles of SO2 to fully react.  However, we only have (135g/64.1 g/mole) = 2.107 moles of SO2.  The SO2 will be the limiting reagent, so the theorectical yield will be based on this reactant, which will consume 2.107 moles of CaO, leaving 0.44 moles (24.7 g) of CaO behind.

The balanced equation tells us that 2.107 moles of CaO should produce 2.107 moles of CaSO4, which is (2.107moles)*(136.1 g/mole) = 198 grams of CaSO4.  We actually got 198 grams, so the yield is 100%  [Nice work].

According to the concept of significant figures,0.002  molecules of CO₂ per hundred molecules of air  are expressed as a concentration as 2 parts per thousand .

Significant figures are used for establishment  of a number which is presented in the form of digits. These digits give a meaningful representation  to the numbers.

The significant figures are the significant digits which convey the meaning according to the accuracy. These provide precision to the numbers and hence are called as significant numbers.There are rules for counting significant figures which are as follows:

1)All non-zero digits are significant .

2)All zeroes which occur between non-zero digits are significant.

3)All zeroes to the left and right of  a non-zero digit are not significant.

4) All zeroes on right  of decimal are significant if a non-zero number follows them.

5)All zeroes on right side of non-zero digit are significant.

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The products Rosa recorded in the last row of the table should be: 2LiCl + 3O₂.

The type of reaction which Rosa did is a decomposition reaction which involves one compound that yields to more than one (or usually two) product. To determine the product, we can deduce that it has to contain elements of Li, Cl and O₂. So, from the options, the answer is 2LiCl + 3O₂.

A decomposition reaction can be described as a chemical reaction in which one reactant breaks down into two or more products. Generally, decomposition reactions need energy input.

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Answer:

If a neutral atom has 22 protons inside its nucleus, it will have 22 electrons orbiting the nucleus.

Explanation:

An atom is the smallest amount of matter that undergoes chemical changes and is made up mainly of subatomic particles: electrons, protons and neutrons. The atomic nucleus is made up of protons, with a positive electric charge, and neutrons, which have no charge, while electrons, with a negative electric charge, revolve around the nucleus.

A neutral atom is one that lacks an electrical charge due to a trade-off between the number of its protons and electrons. In other words, although it has an electric charge, it is balanced between protons, electrons and neutrons. So in a neutral atom, the number of electrons equals the number of protons because the negative charge of the electrons is offset by the positive charge of the protons.

If a neutral atom has 22 protons inside its nucleus, it will have 22 electrons orbiting the nucleus.

In case, if a neutral atom possess 22 protons within its nucleus, it will also possess 22 electrons orbiting the nucleus.

It is as atom, which contains the same number of protons as well as electrons. The neutral atoms can be converted to positively charged ions by withdrawing one or more electrons. However, in the formation of an ion, there is no change in the number of protons.

The number of protons in the nucleus of an atom shows its atomic number, however, in case of a neutral atom, it is also equivalent to the number of electrons.

Thus, if a neutral atom possess 22 protons within its nucleus, it will also contain 22 electrons orbiting the nucleus.

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Answer:

b

Explanation:

The Theoretical temperature ie, Absolute Zero is when "All particles in a sample can never all be moving at once." Hence, Option (A) is correct

What is Absolute Zero temperature ?

It is determined by  ideal gas law;  absolute zero is taken as −273.15 degrees on the Celsius scale (International System of Units), which equals −459.67 degrees on the Fahrenheit scale.

Absolute zero is the lowest limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as zero kelvin.

The fundamental particles of nature have minimum vibrational motion, retaining only quantum mechanical, zero-point energy-induced particle motion.

According to the laws of thermodynamics,

Absolute zero cannot be reached using only thermodynamic means, because the temperature of the substance being cooled approaches the temperature of the cooling agent asymptotically and a system at absolute zero still possesses quantum mechanical zero-point energy, the energy of its ground state at absolute zero.

The kinetic energy of the ground state cannot be removed.

Therefore,

The theoretical temperature ie, Absolute Zero is when "All particles in a sample can never all be moving at once." Hence, Option (A) is correct

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Answer:

It looked like the continents fit together like puzzle pieces

Could I Maybee get brainlest if someone else answers?

Answer:

Answer:

A. Using a probe to collect data

Explanation:

I think Hope it helps

Explanation:

Answer: C

Explanation: got it right on edge

Answer:

first u lick it then out some sliva on it then rub it and once the volcano erupts u put it back in ur mouth and blow real hard ok!

Explanation:

repeat this process till the dong bleeds!

Answer:

The standard reaction free energy of the reaction 2NH3(g) – N2H4(g) + H2(g) is +224 kJ/mol.

Explanation:

The standard reaction free energy ΔG° can be calculated using the following equation:

ΔG° = ΣnΔG°f(products) - ΣmΔG°f(reactants)

where n and m are the stoichiometric coefficients of the products and reactants, respectively, and ΔG°f is the standard free energy of formation.

The standard free energy of formation for NH3(g) is -16.5 kJ/mol, and for N2H4(g) and H2(g) it is 95.5 kJ/mol and 0 kJ/mol, respectively.

Using these values, we can calculate ΔG° for the reaction:

ΔG° = (2 × 95.5 kJ/mol + 0 kJ/mol) - (1 × -16.5 kJ/mol × 2)

     = 191 kJ/mol + 33 kJ/mol

     = 224 kJ/mol

Therefore, the standard reaction free energy of the reaction 2NH3(g) – N2H4(g) + H2(g) is +224 kJ/mol.

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EDTA (ethylenediaminetetraacetic acid) is commonly used to determine the hardness of water due to its ability to form complexes with metal ions, particularly calcium and magnesium ions.

Water hardness refers to the concentration of calcium and magnesium ions present in water. These ions can cause scaling, reduce the effectiveness of soaps, and have other negative effects. EDTA acts as a chelating agent, meaning it can bind to metal ions and form stable complexes.

In the process of determining water hardness, a known amount of EDTA solution is added to a water sample. The EDTA molecules form complexes with the calcium and magnesium ions present in the water.

The endpoint of the titration is reached when all the metal ions are complexed by the EDTA, resulting in a color change or an indicator reaching a specific endpoint.

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Compared to rodents, rabbits have an extra pair of incisors and other skeletal structures that are different, scientist can conclude from this observation that they are serially homologous.

Serial homologous organs or structures are those that are structurally similar but have been modified to perform distinct functions.

As rodents and rabbits both have some similar functions and some changes in the skeletal structure, so that they both are serially homologous.

Hence scientist conclude that rodents and rabbits are serially homologous animals.

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Answer:

type of gasoline

Explanation:

Independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring out a measurable outcome or response.

In this experiment involving how the type of gasoline put in a car affect how fast the car can drive, the independent variable is the TYPE OF GASOLINE because it is what the experimenter changes in order to see it's effect on the speed of the car (dependent variable).

Answer:

physical change occured

Explanation:

it is still juice

The acid is HSO₃⁻(aq), the base is H₂O(aq), the conjugate acid is H₂SO₃(aq), and the conjugate base is OH⁻(aq) in the given reaction.

In the reaction H₂O(aq) + HSO₃⁻(aq) → OH⁻(aq) + H₂SO₃(aq), we can identify the acid, base, conjugate acid, and conjugate base by analyzing how the species donate or accept protons (H⁺ ions).

In this case, HSO₃⁻(aq) acts as the acid because it donates a proton to H₂O(aq), forming H₂SO₃(aq). The H₂O(aq) acts as the base because it accepts the proton from HSO₃⁻(aq) and forms OH⁻(aq). So, the acid is HSO₃⁻(aq) and the base is H₂O(aq).

When an acid donates a proton, the remaining species is called its conjugate base. After HSO₃⁻(aq) donates a proton, it becomes H₂SO₃(aq), making H₂SO₃(aq) the conjugate acid of the original base, H₂O(aq). Conversely, when a base accepts a proton, the resulting species is called its conjugate acid. Since H₂O(aq) accepts a proton and forms OH⁻(aq), OH⁻(aq) is the conjugate base of the original acid, HSO₃⁻(aq).

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First, let's remember the formula to calculate an object's density:

Then, we analyze what we have:

We need to determine the volume, so we transform our formula like this:

We replace our data:

Then, the answer is that the volume equals 12.4 cm^3.

Answer:

Copper (atomic number 29)

Explanation:

Copper is a element that is malleable and a good conductor of heat and electricity.

Answer:

its nuber 3

wdPDAPS

Explanation:

Here are the skeletal structures for the cyclopropane isomers with the molecular formula C5H10:

Isomer 1: N-butylcyclopropane

CH3-CH2-CH2-CH2-CH2

|

C

/

C---C

Isomer 2: Isobutylcyclopropane

CH3-CH(CH3)-CH2-CH2-CH3

|

C

/

C---C

Isomer 3: Neopentylcyclopropane

(CH3)3C-CH2-CH2-CH2-CH3

|

C

/

C---C

These structures represent the three possible isomers of cyclopropane with the given molecular formula. Each isomer has a different arrangement of atoms while maintaining the cyclopropane ring structure.

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elements heavier than iron are known to be formed is option e. Heavy elements are primarily formed in supernovae.

Elements heavier than iron are primarily formed in supernovae. During a supernova, a massive star undergoes a catastrophic explosion, which generates extremely high temperatures and pressures. These conditions are required for the fusion of lighter elements to form heavier ones, including elements like gold, silver, and uranium.

While black holes and Cepheid variable stars do play a role in the formation of heavy elements, they are not the primary sources. Black holes are not directly involved in the formation of heavy elements, although they may be associated with supernova explosions that produce them. Cepheid variable stars are a type of pulsating star that can help us to measure distances in the universe but they are not known to be a significant source of heavy elements.

All main sequence stars fuse hydrogen into helium in their cores, but they do not produce heavier elements in significant quantities. The helium flash process is a brief period of helium fusion that occurs in low-mass stars, but it does not produce elements heavier than helium.

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A chemical engineer is responsible for designing a plant that processes 50 tons per day of reactant generally deals with the new project related to plant.

When chemical engineer generally deals with the new projects which is on paper only. They are the specialist in directing and implementing capital projects for companies. The engineer involved in this processes to meet budgets and project goals following are the duties of chemical process design engineer. They have to understand the process thoroughly.

They have to do the basics overview study of the process. They should think the primary design. They should process risk assessment for the project initial project risk assessment. They have to make a material balance and energy balance. They should analyze initial project cost evaluation primary costing. They should analyze basic engineering of the process and the project site evaluation.

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