how many liters of oxygen are needed to exactly react with 7.43 x 1023 molecules of methane at stp?

The answer is: b. remain constant. A zero-order reaction is the one in which the rate of the reaction does not depend on the concentration of the reactants. This implies that the rate of the reaction will remain constant, irrespective of any change in the concentration of the reactants.

Therefore, if a reaction is zero-order in a reactant, when the concentration of the reactant is decreased by a factor of 2, the reaction rate will remain constant.

This is because the rate of the reaction is not dependent on the concentration of the reactant. If the order of a reaction is 1, then the rate of reaction is directly proportional to the concentration of reactant.

If the order of a reaction is 2, then the rate of reaction is proportional to the square of the concentration of reactant. If the order of a reaction is 3, then the rate of reaction is proportional to the cube of the concentration of reactant.

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The oxidized form of the molecule is quinone.

Oxidation has several definitions. Some of them are

In this case, quinone gained an electron from complex 1 to become quinol. Following the definition of oxidation as the loss of electrons, then we can say that the oxidized form of the molecule is quinone itself.

Immediate it gains an electron, it becomes reduced to quinol.

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The Daniell cell consists of a copper electrode, a zinc sulfate solution, and a copper sulfate solution. The presence of an HCl solution is not necessary for the functioning of the Daniell cell. So, the answer to your question is "Copper electrode, Zinc sulfate solution, Copper sulfate solution

The following are present in a Daniell cell:
- a copper electrode
- a zinc sulfate solution
- a copper sulfate solution
The HCl solution is not present in a Daniell cell.

1. A copper electrode
2. A zinc sulfate solution
3. A copper sulfate solution

An HCl solution is not typically present in a Daniell cell.

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Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$

Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$

The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.

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Answer:

ionic, they would make an ion

Explanation:

Equilibrium. Option C is correct

This law states that a new equilibrium state is achieved if the changes in temperature, pressure, concentration and volume will cause a predictable and opposing changes in the system.

This shows that Le Chatelier's principle can be used to predict the properties above to determine the effect equilibrium have on a system.

Based on the above explanations, we can conclude that Le Chatelier's Principle governs the property of Equilibrium.

Choosing location in supply chain is 4) All of the above.

Choosing location in the supply chain is one of the main strategic decisions that organizations have to make, itt depends on various factors such as demand and supply forecasting, aggregate planning, and inventory management. An appropriate location enables the firms to provide quality goods and services at the right time and place. The location strategy should consider several factors such as proximity to suppliers, customers, labor availability, transportation, etc.The location decision is important for the success of a business as it affects the cost of production, customer service, and market responsiveness. When a location is chosen, it affects the transportation and inventory cost.

Therefore, firms should consider the tradeoffs between the inventory carrying cost and the transportation cost when choosing a location. For instance, a firm may decide to locate closer to the customers to reduce the transportation cost but will have to incur higher inventory carrying cost due to the storage facilities. Hence, organizations need to carefully choose the best location in the supply chain that meets the needs of their customers and ensures their long-term success. Hence, the correct option is 4) All of the above.

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If the resulting p-value is less than 0.05, we would reject the null hypothesis and conclude that there is evidence to support the alternative hypothesis.

The significance level of a hypothesis test is the probability of rejecting a null hypothesis when it is actually true. A common significance level used in statistics is 0.05, meaning that if the p-value of a test is less than 0.05, we would reject the null hypothesis. Let's say we have a null hypothesis H0: μ = 50 and an alternative hypothesis Ha: μ ≠ 50, where μ is the population mean.

We could conduct a hypothesis test using a t-test with a significance level of 0.05. If the resulting p-value is less than 0.05, we would reject the null hypothesis and conclude that there is evidence to support the alternative hypothesis.

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Answer:

im solving now

Explanation:

Answer:

See attached image.

Explanation:

The explanations are on the attachment.  The numerical results are below.

1.  63g/7cm^3 = 9 g/cm^3

2.  The m or mm must be converted so that the units are the same.  1 m = 1000 mm.  I'll convert the meters to mm:  0.080 m = 80 mm.

480 mm^2/80 mm = 6 mm

3.  L times L makes no physical sense, unless this is a new Star Wars technique for making dark matter.  Entertaining, but useless.

The consumption function based on the information in Table 5 is as follows: C = 2577 + 0.75Y. It is given, Consumption function, C = Ca + cY Where, Ca is autonomous consumption expenditure, c is marginal propensity to consume (MPC)Y is disposable income

The consumption function based on the information in Table 5 is: Table 5Income(¥ billions)

Consumption(¥ billions)100025020007526000102772750120301.

Write the consumption function in the given format. Ca = Autonomous consumption expenditure c = MPCY = Disposable Income Calculation:

We can obtain the value of Ca as follows: C = Ca + cY

Put the given values, C = 2577Ca + 0.75YAt Y = 1000 billion, C = 2577(1) + 0.75(1000)

= 8327 billion

At Y = 2000 billion, C = 2577(1) + 0.75(2000)

= 13277 billion

At Y = 3000 billion, C = 2577(1) + 0.75(3000)

= 18277 billion

At Y = 4000 billion, C = 2577(1) + 0.75(4000)

= 23277 billion

At Y = 5000 billion, C = 2577(1) + 0.75(5000)

= 28277 billion

Therefore, the consumption function based on the information in Table 5 is as follows: C = 2577 + 0.75Y.

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Answer:

The only reason wood floats is because it is less dense and has big openings and gaps which allows air in.

Wood that sinks has very tiny openings. The ratio between weight and volume is called density. An object that is less dense than water can be held up by water, and so it floats.

Hope this helps! please mark me brainliest!

God bless :)

Answer:

Volume is always more than the mass for floating objects. For sinking objects mass is always more than the volume

Explanation:

None

The freezing point of the solution is -11.8 °C.

The boiling point of the solution is 103.31 °C.

To determine the freezing point of the solution, we can use the equation:

ΔTf = Kf * m

where:

ΔTf is the freezing point depression,

Kf is the cryoscopic constant (for water, Kf = 1.86 °C/m),

m is the molality of the solution (moles of solute per kilogram of solvent).

First, let's calculate the molality (m) of the solution:

Molar mass of ethylene glycol (C2H6O2):

C = 12.01 g/mol

H = 1.01 g/mol (x 6) = 6.06 g/mol

O = 16.00 g/mol (x 2) = 32.00 g/mol

Total molar mass = 12.01 g/mol + 6.06 g/mol + 32.00 g/mol = 50.07 g/mol

Number of moles of ethylene glycol (C2H6O2) = mass / molar mass

Number of moles = 30.8 g / 50.07 g/mol = 0.615 mol

Mass of water = volume x density = 96.6 mL x 1.00 g/mL = 96.6 g

Now, let's calculate the molality:

Molality (m) = moles of solute / mass of solvent (in kg)

Molality = 0.615 mol / 0.0966 kg = 6.36 mol/kg

Now we can calculate the freezing point depression (ΔTf):

ΔTf = Kf * m

ΔTf = 1.86 °C/m * 6.36 mol/kg = 11.8 °C

To find the freezing point of the solution, subtract the freezing point depression from the freezing point of pure water (0 °C):

Freezing point = 0 °C - 11.8 °C = -11.8 °C

To determine the boiling point of the solution, we can use the equation:

ΔTb = Kb * m

where:

ΔTb is the boiling point elevation,

Kb is the ebullioscopic constant (for water, Kb = 0.52 °C/m),

m is the molality of the solution (same value as calculated before: 6.36 mol/kg).

ΔTb = 0.52 °C/m * 6.36 mol/kg = 3.31 °C

To find the boiling point of the solution, add the boiling point elevation to the boiling point of pure water (100 °C):

Boiling point = 100 °C + 3.31 °C = 103.31 °C

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Proton-proton nuclear chain reaction that can occurs in the core of the Sun as :

Input: Hydrogen, electron

Output: Neutrino, Gamma Ray, the Helium-4

Intermediate: Deuterium, Helium-3, the Positron

Energy in the Sun is created by the nuclear fusion. Four of the hydrogen nuclei are fused to form the one helium nucleus through the series of the reactions called as the proton-proton nuclear chain reaction.

The energy that comes from the mass in difference between the higher of the mass of the four hydrogen nuclei and lower the mass of single helium nucleus. The input are Hydrogen, electron and the intermediate are Neutrino, Gamma Ray, the Helium-4. The final products form are Deuterium, Helium-3, the Positron.

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This question is incomplete, the complete question is :

Proton-proton nuclear reaction chain that occurs in the core of the Sun - Sort the particles into the categories describing whether they are input particles that get used up in the reaction, new output particles persisting after the reaction, or intermediate particles that exist only temporarily during the reaction.

Explanation:

Answer:

Nuclear energy

I'm not sure ok.. Better ask some adult for making sure.

Answer:

In a chemical equilibrium, the forward and reverse reactions occur at equal rates, and the concentrations of products and reactants remain constant. A catalyst speeds up the rate of a chemical reaction, but has no effect upon the equilibrium position for that reaction.

Explanation:

Answer: C.)

Explanation:

Answer:

OB. the nervous system

Explanation:

The Medulla Oblongata helps to regulate important functions such as heartbeat and breathing.

The standard molar enthalpy for the reaction C(s) + ½ O2(g) → CO(g) is -111KJ.

Molar enthalpy is the amount of energy per mole. In light of this, the primary distinction between enthalpy and molar enthalpy is that the former refers to the total heat content of a thermodynamic system, whereas the latter refers to the total heat per mole of reactant in the system.

C(s) + O₂(g) → CO₂(g)    ΔHO = -394 kJ ----(1)

CO₂(g) → CO(g) + 1/2O₂(g)      ΔHO = +283 kJ -----(2)

Adding 1 & 2

C(s) + ½ O₂(g) → CO(g)  

ΔHO = -394 kJ + 283 kJ

ΔHO = -111KJ.

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Complete question is " Find the standard molar enthalpy for the reaction C(s) + ½ 02(g) → CO(g)

Given that

C(s) + O2(g) → CO2(g) AHO = -394 kJ

CO2(g) → CO(g) + ¹/2O2(g) AHO = +283 kJ ".

Answer:

The values of pKₐ is 3.8, and Kₐ is 1.66×10⁻⁴ of lactic acid (CH₃CH(OH)COOH).

What are pKₐ and Kₐ?

The quantitative measure of an acids potency in a solution is the acid dissociation constant, or Kₐ. The Bronsted-Lowry definition states that an acid serves as a proton donor and a base as a proton receiver. Chemists simplify Kₐ to a smaller quantity called pKₐ because Kₐ is frequently a very large number. The same object is expressed differently as Kₐ and pKₐ.

We know that,

pKₐ= -log Kₐ

Hence, Kₐ = 10^(-pKₐ).

As given,

Lactic acid will act as a weak acid and on reaction with strong base like KOH it will form acidic buffer.

HA + KOH ⇒ AK + H₂O

Concentration of Lactic acid (HA) = 0.500 m.

Volume = 100 ml

No. of moles = m × V

                     = 50.0 m moles.

Similarly, no. of moles in KOH = 8.0 m moles.

HA + KOH ⇒ KA + H₂O

Also using Henderson-Hasselbalch equation,

pH = PKₐ + log [salt]/[Acid]

pH = PKₐ + log [KA]/[HA]

Substitute values,

3.058 = PKₐ + log [8]/[42]

PKₐ = 3.058 + 0.72

PKₐ = 3.778

PKₐ ≈ 3.8

Then evaluate the value of Kₐ respectively,

Kₐ = 10⁻³°⁸

Kₐ = 16.63×10⁻⁵

Kₐ = 1.66×10⁻⁴

Hence, the values of pKₐ is 3.8, and Kₐ is 1.66×10⁻⁴ of lactic acid (CH₃CH(OH)COOH).

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The first shell of an atom is its electron shell, or energy level.

The subshell is the second shell.

The particular orbital (or "cloud") within that subshell is the third shell.

The position and energy of an electron in an atom are represented by a set of numbers known as quantum numbers.

principal quantum number

azimuthal quantum number

magnetic quantum number

The electron shell, also known as the atom's energy level, is the initial shell. The value of N ranges from 1 to the atom's outermost electron's shell.

By using the connection, the second shell, which is the subshell, determines the magnitude of the orbital angular momentum.

The third shell creates the orbital angular projection momentum along a certain axis and is the particular orbital (or "cloud") within that subshell.

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Aluminum (Al) is the limiting reagent with 0.601 moles.

To determine the limiting reagent, we need to compare the amount of each reactant with the amount required to completely react with the other reactant.

The balanced chemical equation for the reaction between Fe₂O₃ and Al is:

Fe₂O₃ + 2Al → 2Fe + Al₂O₃

From the equation, we can see that 1 mole of Fe₂O₃ reacts with 2 moles of Al.

To calculate the number of moles of each reactant, we need to divide the mass of each by its molar mass. The molar mass of Fe₂O₃ is 159.69 g/mol and the molar mass of Al is 26.98 g/mol.

The number of moles of Fe₂O₃:

32.0 g / 159.69 g/mol = 0.200 moles

The number of moles of Al:

16.2 g / 26.98 g/mol = 0.601 moles

Since 1 mole of Fe₂O₃ reacts with 2 moles of Aluminum, the limiting reagent is the one with the smallest number of moles. In this case, Al is the limiting reagent with 0.601 moles, while Fe₂O₃ has 0.200 moles. This means that Al will run out first and determine the amount of Fe and Al₂O₃ that can be produced.

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