As methane burns, it reacts with oxygen and forms carbon dioxide and water. The balanced chemical equation below models this chemical reaction.

There are four guiding presumptions for a fuel to be "ideal": The gas particles' volume is minuscule. There are no intermolecular forces (attraction and repulsion) between the equal-sized gas particles and other gas particles. According to Newton's Laws of Motion, the gas particles travel at random.

An ideal gas is one with both the quantity of such molecules and the forces between them are so negligibly small as to not affect the behavior of such gas.

Ideal gas is a fictitious gas that, under all temperature and pressure conditions, complies with the Ideal Gas Law. Real gases are any gases that exist in the natural world. Only in conditions of extremely high temperatures and low pressure do real gases adhere to the Ideal Gas Law. Therefore, ideal gas isn't a true gas.

To know more about ideal gas visit:

https://brainly.com/question/28257995

#SPJ4

Answer:

There are actually five, and there's an easy way to remember them.

Physical Description

Action

Inner thoughts

Reactions

Speech

P.A.I.R.S

This will basically help you with any story you come up with

Covalent bond is a type of chemical bond which is due to the sharing an electron from each and every atom that is participating in the bond.

Ionic bond is a type of bond which is formed due to the complete donation of an electron from one atom to another.

Ionic bond is formed between metals and non-metals. The group which provide the Metal are IA and IIA i.e. S block elements. The group which mostly provide non-metal is VII A i.e. halogens. The Metals give up their ONLY Valance shell electron which is accepted by the Non-metal. This results in formation of ions, The Metals gets the positive charge thus called cation and The non-metal gets a negative charge thus called anion. These Positive and Negative ion attract each other resulting in the formation of IONIC BOND.

The Ionic bond is formed between The metal and non metal because, the metals have low ionization energy due to which the valence shell is ejected out easily, and The Non-Metals have high electron affinity which means that  they attract an electron with greater force because they need one electron to complete their octet. As the non metal has high electron affinity and metal have low electron affinity thus the electronegativity difference between the non metal and metal is more than 2 thus they make ionic bond.

Electronegativity is the tendency of an atom to attract shared pair of electron. If there is electronegativity difference between the two atom more than 2 then it makes IONIC BOND. If the electronegativity difference is less than 2, it makes COVALENT BOND.

The question says, the KCl has ionic bond but HCl has covalent bond, why?

Answer is that KCl has electronegativity difference between K and Cl atom more than 2 thus it forms ionic bond. H and Cl has electronegativity difference of less than 2 thus it makes Covalent Bond. K donates its valence electron completely to the Chlorine atom because chlorine has much more electronegativity than potassium(K). H shares an electron with chlorine, it is not completely donated. H has pair of electron for sometime and chlorine has pair of electron for sometime, It is because the Chlorine and Hydrogen has less difference of electronegativity so they attract with almost same electronegativity.

The number of moles of gas contained in the 3 L vessel at 300 K with a pressure of 1.50 atm is 4.5 mol.

To calculate the number of moles of gas in a given vessel, we can use the ideal gas law equation;

PV = nRT

Where;

P = pressure (in atm)

V = volume (in liters)

n = number of moles

R = ideal gas constant (0.08205 L∙atm/mol∙K)

T = temperature (in Kelvin)

Given;

P = 1.50 atm

V = 3 L

R = 0.08205 L∙atm/mol∙K

T = 300 K

Rearranging the ideal gas law equation solving for n;

n = PV / RT

Substituting the given values;

n = (1.50 atm × 3 L) / (0.08205 L∙atm/mol∙K × 300 K)

n = 4.5 mol

Therefore, the number of moles of gas contained will be 4.5 mol.

To know more about moles here

https://brainly.com/question/15209553

#SPJ4

Answer:

mendeleev left a space

Explanation:

so the periodic table can be organize

A compartment model of the global nitrogen cycle illustrates the global nitrogen budget and its effect on the environment and human life.

It provides a means to account for nitrogenous compounds from their sources to their fate in various compartments. The correct arrangement for each term in the global nitrogen cycle compartment model is explained below:

1) Nitrogen gas in the atmosphere:

This represents the largest nitrogen reservoir in the atmosphere. In a nitrogen cycle, nitrogen gas is fixed by atmospheric nitrogen-fixing bacteria to create nitrates and ammonia. This cycle moves nitrogen from the air into the soil, where it can be consumed by plants, which can then be consumed by animals. Therefore, it belongs to the atmospheric compartment.

2) Nitrogen in peat moss: This belongs to the terrestrial compartment. Terrestrial vegetation, particularly forests and grasslands, is a major pool of organic nitrogen.

3) Nitrogenous wastes in soil I: Nitrogenous waste in soil I represents a subset of the soil's nitrogen pool. It is made up of various organic nitrogen compounds that have been converted to ammonia or ammonium ions. It belongs to the soil compartment.

4) Nitrogen leached into bedrock: This belongs to the geological compartment. Bedrock is a major pool of nitrogen and other nutrients that have been weathered and dissolved in water. Nitrogen can be trapped in rock layers for millions of years before being released back into the soil.

To know more about nitrogen-fixing bacteria visit:

https://brainly.com/question/7049583

#SPJ11

Answer:

flifeee

Explanation:qaSZDFVCVB CDSEW34EDGFBFF

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

volume = 55 mL

density = 1.26 g/mL

mass = 1.26 × 55 = 69.3 g

We have the final answer as

Hope this helps you

The empirical formula for the given compound is C6H6.

The molecular formula represents the precise digits of the atoms found in the given molecule of the compound, whereas the empirical formula represents the proportional of the atoms found in the provided compound.

The empirical formula defines the individual atoms that make up a species in the simplest whole number ratio possible. The

The empirical formula is always multiplied by the molecular formula.

Given the foregoing, the empirical formula for the molecular formula is n.

Because of this, the molecular formula is: 78.0 g m o l 1 = n ( 12.011 + 1.00794 ) g m o l 1

n \s= \s78 \s12.011 \s+ \s1.00794 =6 \s .

And the chemical formula is C 6 H 6.

Molecular formula, although not always.≡

empirical formula, which includes the multiple n=1 \s .

Learn more about  empirical formula here: https://brainly.com/question/12973146

#SPJ1

The most momentum is D. A 65 kg person with a velocity of 2.5 m/s north.

Momentum can be defined as "mass in motion." All items have mass; so if an object is moving, then it has momentum - it has its mass in movement. The amount of momentum that an item has depends upon two variables: how a lot of stuff is moving and how fast the stuff is moving.

Momentum is the force that exists in a shifting object. The momentum pressure of a moving item is calculated by way of multiplying its mass (weight) via its velocity (pace). Surely put, a 20-lb. rock going at 10 mph has lots more momentum force than a 3-lb. Ball going at the same speed.

Momentum is the pressure that exists in a transferring item. The momentum pressure of a shifting object is calculated with the aid of multiplying its mass (weight) by way of its velocity (velocity). Simply put, a 20-lb. Rock going at 10 mph has lots more momentum pressure than a three-lb. Ball going at equal speed. They're each associated with an item's pace (or speed) and mass, but momentum is a vector quantity that describes the amount of mass in motion. Kinetic power is a measure of an item's energy from movement and is a scalar.

Learn more about momentum here https://brainly.com/question/7538238

#SPJ2

Answer and Explanation:

There are 7 base units, m is one of them. Any unit made up of a combination of them is a derived unit. Also, any unit that is defined to be equivalent to a combination of base units is a derived unit.

Answer:

The pOH of the solution is 11.23.

Explanation:

To solve this problem, we must remember the following formula for pH: pH = -log[H+].

If we plug in the value we are given, we can find the pH.

pH = -log[H+]

pH = -log(1.7*10^-3)

pH = 2.77

To find the pOH, we use the following formula:

pH + pOH = 14

To solve, we should plug in the value we found above for pH and solve for the pOH.

2.77 + pOH = 14

pOH = 11.23

Therefore, the correct answer is 11.23.

Hope this helps!

Answer: The heat capacity of a bomb calorimeter is 500 J°C.

Answer:

Therefore, the oxidation state of sulphur atoms in Na2S2O3 is −2 and +6.

Answer:

Br-

Explanation:

because Br- has one extra electron in its valence shell which due to its unbalanced negative charge will be repelled and hence the atomic radius of Br- will increase.

According to the question the element undergoing oxidation is nitrogen (N).

Oxidation is a chemical reaction that involves the loss of electrons from an atom, molecule, or ion. This process creates an oxidized version of the original molecule or ion, which can often be identified by a change in color or smell. Oxidation reactions can occur in both organic and inorganic molecules. Examples of oxidation include the rusting of iron and the browning of an apple when exposed to air. Oxidation often results in the release of energy, which can be harnessed for various applications.

This is because it is gaining oxygen (O) atoms in the reaction. The element undergoing reduction is oxygen (O). This is because it is losing electrons (in the form of oxygen atoms) in the reaction.

To learn more about oxidation
https://brainly.com/question/21851295
#SPJ1

It is challenging to determine which molecules might be soluble in water without knowing the precise compounds in question. To forecast solubility, there are some generic rules that can be employed.

A substance's capacity to dissolve in a specific solvent, such as water, is referred to as being soluble in chemistry. A chemical that is soluble in a specific solvent can combine uniformly with the solvent to create a clear, transparent solution. The polarity of the solvent and the material, temperature, and pressure are only a few examples of the variables that might affect how soluble something is. Chemistry places a lot of emphasis on the notion of solubility because it affects numerous chemical processes and reactions as well as many substances' features and behaviour.

Learn more about soluble here:

https://brainly.com/question/15560070

#SPJ4

The rate of the reaction would be affected, and it would increase significantly when using excess hydrochloric acid.

Performing an SN1 reaction on a tertiary alcohol using 1 equivalent of hydrochloric acid is expected to result in a relatively slow reaction due to the stability of the carbocation intermediate.

However, if the same reaction is performed using 10 equivalents of hydrochloric acid, the rate of the reaction would increase significantly. This is because the excess acid would act as a catalyst and facilitate the formation of the carbocation intermediate,

thereby increasing the rate of the reaction. The excess acid would not react with itself, as it is not a reactive species in this context. However, it is important to note that using too much acid could lead to undesired side reactions and affect the overall yield of the reaction.

To learn more about : hydrochloric

https://brainly.com/question/3229358

#SPJ11

Answer:

The total air pressure at the top of the highest peak in the world is 253.5 torr

Explanation:

The partial pressures of the gases present at the top of Mount Everest are;

Nitrogen, N₂ = 201.0 torr

Oxygen, O₂ = 50.0 torr

Argon, Ar = 2.0 torr

Carbon dioxide, CO₂ = 0.5 torr

By Dalton's law of partial pressure, the total pressure that a mixture of gases exerts is equal to the sum of the partial pressures of the individual gases

Mathematically, the law can be expressed as follows;

Total pressure, P = ∑P\(_i\) = P₁ + P₂ + · · ·

From which we have;

The total air pressure at the top of the highest peak in the world, Mount Everest, \(P_{Total Mont Everest}\) = The sum of the partial pressures of N₂, O₂, Ar, and CO₂

\(P_{Total Mont Everest}\) = 201.0 torr + 50.0 torr + 2.0 torr + 0.5 torr = 253.5 torr

\(P_{Total Mont Everest}\) = 253.5 torr = 0.33355263 atmosphere

Therefore, the total air pressure at the top of the highest peak in the world,  \(P_{Total Mont Everest}\) = 253.5 torr

The total air pressure at the top of the highest peak in the world is 253.5 torr.

Dalton's law of gases states that total pressure of any mixture of gases is equal to the sum of the partial pressures of individual gases.

Given that,

Partial pressure of Nitrogen gas = 201 torr

Partial pressure of Oxygen gas = 50 torr

Partial pressure of Argon gas = 2 torr

Partial pressure of Carbon dioxide gas = 0.5 torr

Total pressure at the top = 201 + 50 + 2 + 0.5 = 253.5 torr

Hence total pressure is 253.5 torr.

To know more about partial pressure, visit the below link:

https://brainly.com/question/19813237

Like any other equilibrium constant, kw is also affected by temperature. the kw at 75 degrees Celsius is 1.995 x 10⁻¹³. Therefore, 13 is the pOH of water at this temperature.

The concentration of hydroxide ions (OH-) is measured by pOH. It is utilized to express a solution's alkalinity.

Aqueous solutions having pOH less than 7 at 25 degrees Celsius are alkaline, pOH larger than 7 are acidic, while pOH equal with 7 are neutral. pH and hydrogen ion concentration is used to compute pOH.

Kw = [OH⁻] [H⁺]

1.995 x 10⁻¹³ = Kw

[OH⁻] =[H⁺]

Kw = [OH⁻]²

[OH⁻] =10⁻¹³

pOH = -log  [OH⁻]

       = - log  10⁻¹³

      = 13

Therefore,  13 is the pOH of water at this temperature.

To know more about pOH, here:

https://brainly.com/question/4092108

#SPJ1

Quality protein modeling methods are validated through CASP (Critical Assessment of Structure Prediction).

CASP is a community-wide, worldwide experiment for protein structure prediction that has been held every two years since 1994. It is designed to provide an objective assessment of the state of the art in protein structure prediction and to identify areas that require further development.

CASP evaluates the accuracy of protein structure prediction methods by comparing the predicted structures to the experimentally determined structures of the same proteins. The experimentally determined structures are kept confidential until the end of the assessment period, so the predictions are truly blind. The results of CASP are used to improve protein structure prediction methods and to identify new challenges in the field.

While SMILES, CHARMM, SCOP, and CATH are all important tools in the field of protein modeling, they are not used to validate the quality of protein modeling methods. SMILES is a notation system for representing chemical structures, CHARMM is a molecular dynamics simulation program, SCOP is a database of protein structural classifications, and CATH is a database of protein domain structures.

To know more about Protein click here:

https://brainly.com/question/19891933#

#SPJ11

(a)The pH of the fruit juice solution is approximately 3.5. (b) The hydrogen ion concentration of the tomato solution is 0.001 mol/L.

(b)The hydrogen ion concentration of the tomato solution is 0.001 mol/L.

(a). The hydrogen ion concentration of the fruit juice is 0.0003 mol/L. We can determine the pH of the solution using the formula pH = -log[H⁺].

pH = -log(0.0003)

pH ≈ -log(3 × 10⁻⁴)

Using a calculator, we can calculate the logarithm:

pH ≈ -(-3.5229) (rounded to the nearest tenth)

pH ≈ 3.5

Therefore, the pH of the fruit juice solution is approximately 3.5.

(b). A tomato has a pH of 3.0. We can determine the hydrogen ion concentration of this solution by rearranging the formula pH = -log[H⁺] to solve for [H⁺].

[H⁺] = 10(-pH)

[H⁺] = 10⁻³

[H⁺] = 0.001 mol/L

Therefore, the hydrogen ion concentration of the tomato solution is 0.001 mol/L.

To know more about hydrogen ion:

https://brainly.com/question/24673381

#SPJ4

If the number of molecules of a gas increases twofold while the pressure and temperature remain constant, the volume of the gas will also increase twofold.

According to Avogadro's law, at constant temperature and pressure, the volume of a gas is directly proportional to the number of molecules or moles of the gas. This means that if the number of molecules of the gas doubles, the volume will also double.

Avogadro's law can be expressed mathematically as:

V ∝ n

where V is the volume of the gas and n is the number of molecules or moles of the gas.

If we assume that the pressure and temperature remain constant, we can write the relationship as:

V1/n1 = V2/n2

where V1 and n1 are the initial volume and number of molecules, and V2 and n2 are the final volume and number of molecules.

In this case, if the number of molecules increases twofold (n2 = 2n1), the equation becomes:

V1/n1 = V2/(2n1)

Simplifying the equation, we find:

V2 = 2V1

This means that the final volume (V2) will be twice the initial volume (V1) when the number of molecules doubles, assuming the pressure and temperature remain constant.

Therefore,if the number of molecules of a gas increases twofold while the pressure and temperature remain constant, the volume of the gas will also increase twofold.

To know more about molecules visit:

https://brainly.com/question/475709

#SPJ11

Answer: transporting oxygen-rich blood to the body

Explanation:

Some synonyms for freezing are :-

1) numbing

2) chilling

3) glacial

4) bitter cold

5) gelid

6) frigid

7) icy

8) polar

9) arctic

10) wintry

_____

RainbowSalt2222 ☔

The free energy change for the evaporation of methanol at 25.0°C and a partial pressure of 150.0 mmHg is 3.9 kJ.

The free energy change (ΔG) can be calculated using the equation:

ΔG = ΔG° + RT ln(Q)

Where ΔG° is the standard free energy change, R is the gas constant, T is the temperature in Kelvin, and Q is the reaction quotient. In this case, the reaction is the evaporation of methanol, so the equation is:

CH₃OH (1) → CH₃OH (g)

The reaction quotient can be expressed as the partial pressure of the gaseous methanol product (PCH₃OH) divided by the standard state pressure (1 atm), since the other reactant is a pure liquid:

Q = PCH₃OH / 1 atm

Substituting the values into the equation, we get:

ΔG = ΔG° + RT ln(PCH₃OH / 1 atm)

Since the problem only gives us the partial pressure of CH₃OH (150.0 mmHg), we need to convert it to atm:

PCH₃OH = 150.0 mmHg / 760 mmHg/atm

PCH₃OH = 0.197 atm

Substituting the values into the equation, we get:

ΔG = ΔG° + (8.314 J/K/mol) x (298 K) x ln(0.197)

Converting the result to kJ and rounding to one decimal place, we get:

ΔG = 3.9 kJ

To learn more about free energy, here

https://brainly.com/question/31170437

#SPJ4

There are none

Given

a molecule of calcium sulfide

two valence electron of Calcium(Ca)

six valence electrons of Sulfur(S)

Required

number of lone pairs of electrons

Solution

Lewis structure shows the form of bonds that occur in the valence electrons of an element or compound

Valence electrons are electrons used in a chemical bond

To achieve stability, the element S needs 2 more electrons which are obtained from 2 electrons from the Ca element,

A lone pair electron means refers to an unshared pair of electrons(not bonding to the other atoms)

This condition usually occurs in covalent bonds

As we know, the bond between Ca, which is a group 2 (metal) with Sulfur in group 16, is an ionic bond because it occurs between metal and non-metal ions, so there is no sharing of electrons, but there is a release of electrons from Ca ions to S ions to form an octet. , so all the valence electrons in S are paired

The statement supported by the data shown in the figures is:

"At 1% O2, plant type 2 has a higher rate of CO2 fixation than plant type 1 does in the dry soil but not in the control soil."

By analyzing the data shown in the figures, we can observe the rates of CO2 fixation for plant types 1 and 2 under different conditions. The figures provide information on the rates of CO2 fixation at two oxygen levels (21% and 1%) and in two types of soil (dry soil and control soil).

Based on the data, we can see that at 21% O2, plant type 2 consistently has a lower rate of CO2 fixation than plant type 1 in both types of soil. This information rules out the first two statements.

However, at 1% O2, the data reveals that plant type 2 has a higher rate of CO2 fixation than plant type 1 in the dry soil. This indicates that under low oxygen conditions, plant type 2 is more efficient in fixing CO2 than plant type 1, but this difference is not observed in the control soil. Therefore, the third statement accurately reflects the supported conclusion.

The other statements are not supported by the data. There is no information provided in the figures to suggest that the rates of CO2 fixation between plant types 1 and 2 are statistically different in both soil types at both oxygen levels or that the rates of CO2 fixation are the same in both types of plants in the control soil at both oxygen levels.

Based on the data presented in the figures, the supported statement is that at 1% O2, plant type 2 has a higher rate of CO2 fixation than plant type 1 does in the dry soil but not in the control soil. This conclusion is drawn from the specific observations provided in the data and highlights the difference in CO2 fixation rates between the two plant types under different oxygen and soil conditions.

To know more about fixation , visit :

https://brainly.com/question/31677578

#SPJ11