for the following reaction, kp = 0.262 at 1000°c: c(s) 2h2(g) ⇌ ch4(g) at equilibrium, the partial pressure of h2 is 1.26 atm. what is the equilibrium partial pressure of ch4(g)?

1)  moles Al : moles of HCl

        2        :     6

simplifying the ratio;

        1         :    3

2)  \(HCl : AlCl_{3}\)

      6    :  2

       3   :  1

3)  \(Al : AlCl_{3}\)

     2 : 2

      1 : 1

4) \(HCl : H_{2}\)

     6    :  3

      2   :  1

5) \(HCl : H_{2}\)

      2   :  1

       6  :  x

x = 6/2

x = 3 moles

6) \(HCl : H_{2}\)

      2   :  1

      12  :  x

x = 12/2

x = 6 moles

7) \(HCl : H_{2}\)

     2   :  1

      3   :  x

x = 3/2 moles

The molality of a solution that contains 2.33 g carvone in 17.6 ml of ethanol , the density is 0.7893 g/ml is 1.12 molal.

Mass of  carvone = 2.33 grams

Volume of ethanol = 17.6 mL

Density of ethanol = 0.789 g/mL

Molar mass carvone = 150.22 g/mol

Moles carvone = mass carvone  / molar mass carvone

Moles carvone = 2.33 grams / 150.22 g/mol

Moles carvone  = 0.0155 mol

Mass ethanol = density × volume

Mass ethanol = 0.7893 g/mL  × 17.6 mL

Mass ethanol = 13.89 grams = 0.0138 kg

Molality = moles carvone / mass ethanol

Molality = 0.0155 / 0.0138

             = 1.12 molal

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Answer:

a spoon

Explanation:

The given chloride level in Michelle's blood is 0.55 g/dL. Now we need to convert this value into milliequivalents per liter.

Chloride has a molar mass of 35.45 g/mol. The equation for calculating milliequivalents per liter is:milliequivalents per liter (mEq/L) = (mass in g / molar mass) x 10So, milliequivalents per liter (mEq/L) of Michelle's blood is:0.55 g/dL = 0.55 x 10 / 35.45 mEq/L (since 1 dL = 1000 mL)0.55 x 10 / 35.45 ≈ 0.1561 (rounded to four significant figures)So, the value of chloride level in milliequivalents per liter in Michelle's blood is approximately 0.1561 mEq/L (to two significant figures, the answer is 0.16 mEq/L).Thus, the correct answer is IVAL 0.16 mEq/L.

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Answer:

A: Aluminum

Explanation:

You are more likely to find pure aluminum than any other of the materials on the list because aluminum is one of the most abundant materials on Earth, making up about 8% of the Earth's crust, and it can be found in over 270 naturally occuring minerals.

Answer:

The answer is "aluminum" brother.

Explanation:

I've been studying brother.

To determine the number of moles of the gaseous organic compound, we can use the ideal gas law equation: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

First, we need to convert the density to mass per volume. The density of the gas is given as 340g/L. Therefore, the mass of 1 L of the gas is 340 g.

Next, we need to use the ideal gas law to calculate the number of moles. We know that the pressure is 1.7 atm, the temperature is 45°C (which is 318 K), and the volume can be calculated using the density and the molar mass of the compound. The molar mass can be determined from the molecular formula of the compound.

Assuming the compound is a hydrocarbon, we can use an average molar mass of 28. Thus, the volume of 1 mole of the gas can be calculated as follows:

V = (molar mass/density) × 1000 ml/L = (28/340) × 1000 = 82.35 ml/mol

Using the ideal gas law equation and plugging in the given values, we get:

n = (PV) / (RT) = (1.7 atm × 82.35 ml) / (0.0821 L atm/mol K ×318 K) = 0.839 mol

Therefore, the number of moles of the gaseous organic compound is 0.839 mol

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Answer: \(FeSO_4+CaCl_2\rightarrow CaSO_4+FeCl_2\)

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.  

A double displacement reaction in which one of the product is formed as a solid is called as precipitation reaction.  

The balanced chemical equation is:

\(FeSO_4+CaCl_2\rightarrow CaSO_4+FeCl_2\)

Answer:

bete is your answer.

have a great day.

I think c ....is write answers

The 3 types of organic molecules, including their "building" blocks and in which types of food, are found as they relate to the growth of the organism and the release of energy within the organ are carbohydrates, proteins, and lipids.

Carbohydrates are made of monosaccharides, or simple sugars, such as glucose and fructose, they are found in foods like fruits, vegetables, and grains. Carbohydrates provide organisms with energy for growth and daily activities, and they serve as a source of stored energy in the form of glycogen or starch. Proteins are composed of amino acids, which are the building blocks for creating various proteins in organisms. Proteins are found in foods like meat, poultry, fish, eggs, and beans, they play a crucial role in the growth and repair of tissues and are essential for various processes like enzyme production, hormone regulation, and immune function.

Lipids, such as fats and oils, are made of glycerol and fatty acids, they are found in foods like nuts, seeds, and avocados, as well as animal fats. Lipids serve as long-term energy storage, provide insulation, and contribute to cell membrane structure in organisms. In summary, carbohydrates, proteins, and lipids are the three main types of organic molecules that contribute to organism growth and energy release. Each type is composed of unique building blocks and can be found in various foods.

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Your limiting reagent will be copper (II) chloride. The mole ratio is the most crucial tool you'll have to tackle this problem, or any other stoichiometry problem, for that matter.

Keep in mind that in order to make 3 moles of copper from 3 moles of copper (II) chloride, you need 2 moles of aluminum. Unbalanced reaction: Al(s)+HCl(aq) AlCl3(aq)+H2(g). Cl. Balance On the product side there are three Cl atoms and on the reactant side there is one. There is only one hydrogen atom on the reactant side and two on the product side of the reaction Mg + HCl MgCl 2 + H 2. The equation is therefore unbalanced.

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A compound made of Group 2 and Group 16 elements will have a 1:1 atom ratio.

A compound made of Group 13 and Group 17 elements will have a 1:3 atom ratio.

A compound made of Group 2 and Group 15 elements will have a 1:3 atom ratio.

Chemical combination is the process of combining two or more components or molecules to create a new product.

A chemical compound is a substance that contains atoms from many chemical elements bonded together by chemical bonds. It is made up of numerous similar molecules.

The oxidation states of Group 2 elements and Group 16 elements are +2 and -2, respectively. As a result, a compound made of Group 2 and Group 16 elements has a 1:1 atom ratio.

The oxidation state of Group 13 elements is +3, while Group 17 elements have a -1 oxidation state. As a result, a compound made of Group 13 and Group 17 elements has a 1:3 atom ratio.

The oxidation states of elements in Group 2 and Group 15 are +2 and -3, respectively. As a result, a compound made of Group 2 and Group 15 elements has a 1:3 atom ratio.

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Answer:

Explanation:

Hydrosulfuric acid (H_2S) is considered a 'weak acid." It dissociates in water according to this reaction: H_2 S(aq) + H_2O(t) HS^-(aq) + H_3O^+(aq) k_a = 9 times 10^-8 Hydroiodic acid (HI) is considered a "strong acid".

Answer:

Sift the mixture to separate the rock from the iron filings, soil and salt.

You can then use a magnet to separate the iron filings from the salt and soil.

Afterwards, you can pour water into the remaining salt- soil mixture. Salt will dissolve but the soil will remain at the bottom of the water.

If you want to separate the salt from the water, you can boil it till all the water evaporates. The only thing that'd be left in the pan is salt.

Answer:The mass of scheelite having one million oxygen atoms is. Explanation: We are given: Number of oxygen atoms = (million atoms). According to mole .

Explanation:

Balanced chemical equation:

\(3 Ba(NO3)2 (aq) + 2 K3PO4 (aq) ----- > 6 KNO3 (aq) + Ba3(PO4)2(s)\)

What is double-displacement reaction?

In an aqueous solution, a double-displacement reaction takes place when the positive and negative ions of two ionic compounds exchange positions to form two completely different compounds.

Chemical formula for :

Barium nitrate---> Ba(NO3)2  (aq)

Pottasium Phosphate = K3PO4 (aq)

Reaction between these two is a type of double displacement type reaction in which ions are exchanged , forming

Pottasium Nitrate -----> KNO3 (aq)

Barium Phosphate -----> Ba3(PO4)2 (s)

(aq) means the phase is aqueous and (s) means phase is solid or the compound precipitated out .

Now, writing the molecular formula using the above data , we get:

\(Ba(NO3)2 (aq) + K3PO4 (aq) ------ > KNO3 (aq) + Ba3(PO4)2 (s)\)

A equation is called balanced when number of chemical species are same on both sides of the equation .

Here, in product side there are 3 Ba and 2 (PO4) and only 1 Ba and 1 PO4 in reactant side to balance this let's multiply

2 with K3PO4 on reactant side and ,

3 with Ba(NO3)2 on reactant side

The equation thus becomes:

\(3 Ba(NO3)2 (aq) + 2 K3PO4 (aq) ------ > KNO3 (aq) + Ba3(PO4)2 (s)\)

Now,

There are 6 K atoms on reactant side to balance this let's multiply 6 with KNO3 in product side by doing so we also balanced NO3.

Consequently, the balanced chemical equation is

3 Ba(NO3)2 (aq) + 2 K3PO4 (aq) ----- > 6 KNO3 (aq)  + Ba3(PO4)2(s)

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Answer:

30 moles of CO₂

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

Al₂(CO₃)₃ —> Al₂O₃ + 3CO₂

From the balanced equation above,

1 mole of Al₂(CO₃)₃ decomposed to produce 3 moles of CO₂.

Finally, we shall determine the number of mole of CO₂ produced from the decomposition of 10 moles of Al₂(CO₃)₃. This can be obtained as follow:

From the balanced equation above,

1 mole of Al₂(CO₃)₃ decomposed to produce 3 moles of CO₂.

Therefore, 10 moles of Al₂(CO₃)₃ will decompose to produce = 3 × 10 = 30 moles of CO₂.

Thus, 30 moles of CO₂ were obtained from the reaction.

30 moles of CO₂ will be produced by the decomposition of 10 moles of  \(\rm Al_2(CO_3)_3\).

Carbon dioxide is a gas made up of two elements, carbon, and oxygen.

It is the gas that is used by plants to make their food.

The % of this gas on Earth is 0.03%

The balanced equation is

\(\rm Al_2(CO_3)_3 \longrightarrow Al_2O_3 + 3CO_2\)

1 mole of \(\rm Al_2(CO_3)_3\) decomposes to produce 3 moles of CO₂.

If 1 mole of \(\rm Al_2(CO_3)_3\) produce 3 moles of CO₂, then decomposition of 10 moles of \(\rm Al_2(CO_3)_3\) will produce

3 × 10 = 30 moles of CO₂.

Thus, 30 moles of CO₂ will be produced by the decomposition of 10 moles of  \(\rm Al_2(CO_3)_3\).

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Adding a buffer solution to a chemical reaction can help maintain a constant pH and provide a more controlled and predictable environment for the reaction to occur.

A buffer solution is added to a chemical reaction in order to maintain a constant pH throughout the reaction. A buffer solution is a mixture of a weak acid and its conjugate base (or a weak base and its conjugate acid) in approximately equal amounts.

Buffer solutions resist changes in pH when small amounts of an acid or base are added to them. They work by absorbing or releasing protons in response to changes in the pH of the system. This means that a buffer can keep the pH of a solution relatively constant even when an acid or a base is added.

In some chemical reactions, the pH of the system can affect the rate of the reaction or the selectivity of the reaction. Therefore, adding a buffer solution to the reaction can help ensure that the pH of the system remains constant and that the reaction proceeds under controlled conditions.

In summary, adding a buffer solution to a chemical reaction can help maintain a constant pH and provide a more controlled and predictable environment for the reaction to occur.

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The half-life of carbon-11 is 20 minutes, so after one hour from when the original sample was measured, the amount of carbon-11 left in the sample would be: 6.25 mCi (millicuries).

This can be determined by calculating the decay rate, the amount of carbon-11 present in the sample after 1 hour is equal to the original amount multiplied by (1/2) to the power of the number of half-lives that have elapsed.

In this case, the number of half-lives that have elapsed is 3 (since the half-life of carbon-11 is 20 minutes and 20 minutes x 3 is 1 hour). Therefore, the equation would look like this: 25 mCi x (1/2)^3 = 6.25 mCi. In other words, after 1 hour has passed, there would be 6.25 mCi of carbon-11 left in the sample.

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The energy are there in one photon of orange light whose wavelength is 630nm is  \(3.15401\times10^{-19}\) Joules.

W=c/v, c=speed of light, v=frequency

\(6.3 \times 10^-7=3 \times 10^8/v\)

\(v=3 \times 10^8 / 6.3 \times 10^-7\)

\(v=4.76 X 10^14 Hz\)-frequency of the yellow light.

E=hv, h=Planck's constant,

\(E=(4.76 \times 10^14)Hz \times 6.62607×10^-34 J s\)

\(E=3.15401\times10^{-19}\) Joules- the energy of a single photon of yellow light.

Planck's constant or Planck's constant, is a fundamental physical constant of quantum mechanics. The constant gives the ratio of the energy of the photon to its frequency, and for mass-energy equivalent, the ratio of mass to frequency.

In quantum mechanics, energy is exchanged and absorbed in certain amounts called quanta. The Planck constant is a number that defines the amount of energy in these quantities and expresses how small things can be. Learn more about Planck's constant in this infographic.

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Answer:

Evaporation is great for separating a mixture (solution) of a soluble solid and a solvent. The process involves heating the solution until the solvent evaporates (turns into gas) leaving behind the solid residue. ... This method is best for separating a liquid from a solution.

Filtration is a method for separating an insoluble solid from a liquid. When a mixture of sand and water is filtered: the sand stays behind in the filter paper (it becomes the residue ) the water passes through the filter paper (it becomes the filtrate )

Magnetic separation is the process of separating components of mixtures by using magnets to attract magnetic materials. ... Due to the magnets, magnetic particles are being drifted by the movement of the drums. This can create a magnetic concentrate (e.g. an ore concentrate).

Explanation:

That's your answer.

The term rate of reaction, RR, refers to the speed at which the reactants of a chemical reaction are turned into products. A) RR = 0.0047 M/s; B) RR = 0.0038 M/s; C) 0.0019 M/s.

When talking about the rate of reaction we refer to the speed at which a chemical reaction occurs, turning reactants into products.

It can be measured as

The formula to calculate the rate of reaction is the following,

RR = Δ concentration / Δ Time

Where,

In the exposed example, the chemical reaction is

                              NO₂(g) → NO(g) + 12 O₂(g)

So the rate of reaction can be measured according to

Since the collected data was the concentration of NO₂ as a function of time, then the rate of reaction was measured as the speed at which NO₂ was consumed.

A. What is the average rate of the reaction between 10 and 20 s?

Available data

RR = Δ concentration / Δ Time

RR = (0.951 - 0.904) / 20 - 10

RR = 0.074 / 10

RR = 0.0047 M/s

B. What is the average rate of the reaction between 50 and 60 s?

Available data

RR = Δ concentration / Δ Time

RR = (0.778 - 0.740) / 60 - 50

RR = 0.038 / 10

RR = 0.0038 M/s

C. What is the rate of formation of O₂ between 50 and 60 s?

Now, since NO₂ turns into NO and O₂, then

                  RR = Rate of NO₂ consumed = 2x rate of O₂ produced

If RR between 50 and 60 s is 0.0038 M/s, then the rate of formation of O₂ is,

Rate of NO₂ consumed / 2 =  rate of O₂ produced

0.0038 M/s / 2 = rate of O₂ produced

0.0019 M/s = rate of O₂ produced

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Answer: D. barium

Explanation:

Atomic size of an atom is defined as the total distance from the nucleus to the outermost shell of the atom.

On moving from left to right in a period, more and more electrons get added up in the same shell and the attraction between the last electron and nucleus increases, which results in the shrinkage of size of an atom. Thus, decreasing the atomic radii of the atom on moving towards right of the periodic table.

On moving from top to bottom, there is an addition of shell around the nucleus and the outermost shell gets far away from the nucleus and hence, the distance between the nucleus and outermost shell increases. Thus, increasing the atomic size of the atom.

Thus Barium has the graetest radius.

The chemical reaction between benzoic acid (C₆H₅COOH) and NaOH can be represented as C₆H₅COOH + NaOH → C₆H₅COONa + H₂O.

This reaction involves the displacement of the hydrogen atom from the carboxylic acid group in benzoic acid by the sodium atom from sodium hydroxide. As a result, sodium benzoate (C₆H₅COONa) and water (H₂O) are formed.

The reaction between benzoic acid and NaOH is classified as an acid-base reaction, where the acidic benzoic acid reacts with the basic NaOH to produce a salt (sodium benzoate) and water.

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14 carbon atoms do the 14CO2 used to synthesize malonyl-COA from acetyl-CoA appear in palmitate.

Acetyl-CoA is carboxylated into malonyl-CoA by the acetyl-CoA carboxylase enzyme. The joining of one acetyl-CoA molecule and one bicarbonate molecule requires energy from ATP.

Malonyl coenzyme A: acyl carrier protein transacylase is an enzyme that uses malonyl-CoA in the production of fatty acids (MCAT).

The highly controlled acetyl-CoA carboxylase (ACC) in the cytoplasm produces malonyl-CoA by carboxylation acetyl-CoA in biotin and ATP-dependent manner. Acetyl-CoA carboxylase is an enzyme that changes acetyl-CoA into malonyl-CoA. Malonyl-ACP is created when the malonyl group is added to an acyl carrier protein.

A condensation reaction between malonyl-ACP and acetyl-CoA results in acyl-ACP and the simultaneous release of CO2.

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The features are shared by all three-carbon monosaccharides, They are all pentoses. In their linear forms, they all contain carbon carboxyl and several hydroxyl functional groups. In their linear forms, they all contain a carbonyl and several hydroxyl functional groups.

Carbon is used in some form in almost every industry in the world. It is used as fuel in the form of coal, methane gas, and crude oil (used to make gasoline). It is used to make all sorts of materials, including plastics and alloys such as steel (a combination of carbon and iron).

Life on Earth cannot exist without carbon. This allows carbon to readily form bonds with other atoms, giving it flexibility in the forms and functions that biomolecules such as DNA and RNA can adopt, and is essential for growth and replication, the defining properties of life. This is partly due to

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When a substance undergoes a chemical change it is no longer the same but a   brand____ new___ substance_____.

When a substance undergoes A Chemical change, it means that a reaction occurred that  altered the the chemical composition  and properties of the substance to become a new  substance entirely.

Examples of chemical change are

Rusting of iron.

Burning of wood.

The change of sugar to caramel upon heating.

Cooking.

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For eight valence electrons, there can be up to eight dots. The first four electrons are positioned as single electrons, followed by the pairing of the following four. The number of unpaired electrons and the number of bonds that can be formed by each element are typically identical.

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Answer:

The first question is option 2

and the second question in option 1

Explanation:

Answer: the plasma membrane, the cytoplasm, ribosomes, and genetic material.

hope this helped

The elements that have least protons to those having the most protons in the atoms are:

B. C, Al, P, Cl

There is an equal number of protons and electrons in an atom. So when moving across a period in a periodic table the number of electrons increases which also shows the increases in a number of protons. So as the atomic number increases, the number of protons and electrons also increases.

Thus, the order of elements having least to greatest protons are:

C, Al, P, Cl

C has 6 atomic number, Aluminium has 13 atomic number , Phosphorus has 14 atomic number and atomic number of chlorine is 17.

Thus, option B is correct.

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