25cm3 of gas at 1 atm has a temperature of 20 degree celsis .
When the gas is compressed to 20cm3, the temperature of the gas increase to 28 degree celsis.
Calculate the final pressure of the gas?​

Answer:294.80°F

Explanation:

Answer:

Its 146 degrees celcius

Explanation:

......

Answer:

[tex]\boxed {\boxed {\sf 1.5935 \ mol \ FeCl_}}[/tex]

Explanation:

To convert from grams to moles, we must use the molar mass. This can be found on the Periodic Table. First, find the molar mass of iron and chlorine.

Check the formula. There is a subscript of 3 after Cl, so there are 3 atoms of chlorine in 1 molecule. Multiply iron's molar mass by 3, then add iron's molar mass.

Use this number as a ratio.

[tex]\frac {162.19 \ g\ FeCl_3}{1 \ mol \ FeCl_3}[/tex]

Multiply by the given number of grams.

[tex]258.45 \ g \ FeCl_3 *\frac {162.19 \ g\ FeCl_3}{1 \ mol \ FeCl_3}[/tex]

Flip the ratio so the grams of iron (III) chloride cancel.

[tex]258.45 \ g \ FeCl_3 *\frac {1 \ mol \ FeCl_3}{162.19 \ g\ FeCl_3}[/tex]

[tex]258.45 *\frac {1 \ mol \ FeCl_3}{162.19}[/tex]

[tex]\frac {258.45 \ mol \ FeCl_3}{162.19}[/tex]

[tex]1.59350144892 \ mol \ FeCl_3[/tex]

The original measurement of grams has 5 significant figures, so our answer must have the same. For the number we calculated, that is the ten thousandth place.

[tex]1.5935 \ mol \ FeCl_3[/tex]

258.45 grams is approximately 1.5935 moles of iron (III) chloride.

The muscular system's main purpose is to help the body move.

The answer is C: The muscular system

Answer:

It will require second round of the cycle to release [tex]14C0_2[/tex]

Explanation:

Reason behind the requirement of second round of the cycle to release [tex]CO_2[/tex] -:

The C4 carbon of succinyl CoA is acetyl from acetyl CoA. Succinyl CoA is converted to succinate, which is then converted to fumarate, fumarate, malate, and eventually oxaloacetate. 14C will be found in oxaloacetate at either C1 or C4. During the second round of the loop, each of these carbons will be converted to carbon dioxide.

Answer:

Fractional distillation is a method for separating a liquid from a mixture of two or more liquids. For example, liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This method works because the liquids in the mixture have different boiling points. When the mixture is heated, one liquid evaporates before the other.

Answer:

It is because the

Explanation:

The question is incomplete, the complete question is;

The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula: =E−Ryn2 In this equation Ry stands for the Rydberg energy, and n stands for the principal quantum number of the orbital that holds the electron. (You can find the value of the Rydberg energy using the Data button on the ALEKS toolbar.) Calculate the wavelength of the line in the emission line spectrum of hydrogen caused by the transition of the electron from an orbital with =n10 to an orbital with =n8. Round your answer to 3 significant digits.

Answer:

162 * 10^-7 m

Explanation:

The Rydberg formula is;

1/λ= R(1/n2^2 - 1/n1^2)

R = Rydberg constant = 1.097 * 10^7 m-1

n2 = final state of the electron = 8

n1 = initial state of the electron = 10

Substituting values;

1/λ= 1.097 * 10^7(1/8^2 - 1/10^2)

1/λ= 1.097 * 10^7(1/64 - 1/100)

  1 / λ = 1.097 10⁷ (0.015625 - 0.01)

1 /λ = 0.006170625 10⁷

λ = (0.006170625 10⁷)^-1

λ = 162 * 10^-7 m

Answer:

Nucleic acid is an important class of macromolecules found in all cells and viruses. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins.

A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.

Answer:

Celcius

Farenheit

Kelvin

Explanation:

Answer:

80.% carbon and 20.% hydrogen

Explanation:

Ethane has molecular formula C2H6. So What is the composition of carbon and hydrogen in ethane. its alot to explain but yea thats wht i got

Answer:

-Gas converting to a liquid

-Solid converting to a liquid

Explanation:

Endothermic process. It's absorb heat

Answer:

A) call Billy Jo Jim Bob

Explanation:

Answer: D

Explanation:

The radioactive dating is also called the radiometric dating. It involves the use of several radioactive substances like Argon, uranium, etc. The correct option is D.

The method of dating rocks and minerals using the radioactive isotopes is defined as the radioactive dating. This method is very helpful to determine the age of igneous and metamorphic rocks which cannot be measured using correlation method.

Many different radioactive isotopes and methods can be used for dating. The elements like uranium and potassium contain a number of different isotopes whose half life is known exactly and thus the concentration of these isotopes within a rock or mineral can measure the age.

The method radiocarbon dating is also used for determining the age of archaeological carbonaceous objects such as wood samples or animal fossils by measuring the radioactivity of ¹⁴C present in them.

Thus the correct option is D.

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Answer:

See explanation

Explanation:

The term IHD means index of hydrogen deficiency. It tells us the number of missing hydrogen atoms from a given chemical formula. This number of missing hydrogen atoms corresponds to the number and type of multiple bonds in a given compound.

The formula for IHD is; IHD = C + 1 + N/2 – H/2 – X/2

C = Number of carbon atoms

N = Number of nitrogen atoms

H = Number of hydrogen atoms

X = Number of halogen atoms

Since;

N=0, X=0

Then;

IHD = C + 1 – H/2

Hence;

IHD = 6 + 1 - 14/2

IHD = 7 -7

IHD = 0

An IHD of 0 implies that there is no hydrogen deficiency or multiple bond in the molecule. It is purely a saturated compound.

Answer:

a. 28.08 amu

b. Silicon

Explanation:

Step 1: Given data

Isotope         Isotopic mass (mi)         Fractional abundance (abi)

 ²⁸X               27.977 amu                   0.9221

 ²⁹X               28.976 amu                  0.0470

 ³⁰X               29. 974 amu                 0.0309

Step 2: Calculate the atomic weight (aw) of this element

We will use the following expression.

aw = ∑mi × abi

aw = 27.977 amu × 0.9221 + 28.976 amu × 0.0470 + 29. 974 amu × 0.0309

aw = 28.08 amu

Looking at the periodic table, the element with atomic weight = 28.08 amu is silicon.

Answer:

See explanation

Explanation:

Molar mass is obtained as the sum of relative atomic masses as follow;

For CaBr = 40.08 + 79.90 = 119.98 g/mol

For BeBr =  9.012 + 79.90 = 88.912 g/mol

For CdBr2 = 112.41 + 2(79.90) = 272.21 g/mol

For CuBr2 = 63.55 + 2(79.90) = 223.35 g/mol

Answer: Your balanced equation is 2Al + 3S --> Al_2S_3. In two separate equations, first use the 48.5g of Al to find the amount (in moles) of Al_2S_3. Then use the 62.8g of S to find the amount (in moles) of Al_2S_3. By doing these, you find which reactant (the Al or the S) produces the least amount of Al_2S_3. Since it's the S, that's the limiting reactant: you then use that 62.8g of S to find how many grams of Al will be used in the reaction. (Use the same balanced equation.) You find that 35.2g of Al will be used, then find the excess by subtracting that 35.19 from the original 48.5g. Your excess amount is 13.3g of Al!

Explanation:

hopefully this is what you were looking for <3 :)

The amount of excess reactant that left over the chemical reaction between aluminum and ammonium perchlorate is 0.9 moles.

Mass into moles (n) will be converted by using the below equation as:

n = W/M, where

W = given mass

M = molar mass

Moles of 45g of Aluminum = 45g / 27g/mol = 1.66 mol

Moles of 301g of ammonium perchlorate = 301g / 117.4g/mol = 2.56 mol

Both reactants are reacted with each other and one of the reactant is fully consumed, so the excess reactant will be calculated as:

Excess reactant = 2.56mol - 1.66mol = 0.9 moles

Hence amount of excess reactant is 0.9 moles.

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Answer:

The correct answer is - 2CO2 or two molecules of carbon dioxide.

Explanation:

The TCA cycle or citric acid cycle is a central pathway of cellular respiration that helps in unifying several metabolites and generates energy for cellular functions. It takes place over eight different steps:

Step 1:  Acetyl CoA enters the citric acid cycle that is a 2-carbon compound and attaches with 4-carbon compound oxaloacetate to form citrate a 6 carbon compound

Step 2: This 6-carbon compound isocitrate

Step 3: 5 carbon compound alpha-ketoglutarate is produced by oxidizing the isocitrate and release the release of carbon dioxide. One NADH molecule is formed.

Step 4: This 5 carbon molecule is oxidized again to form a four-carbon compound that binds with CoA to make forming succinyl CoA. A second molecule of NADH is produced, alongside a second molecule of carbon dioxide.

Step 5: Succinyl CoA is then converted to succinate with GTP formation

Step 6: Succinate is converted into fumarate with the generation of FADH₂ molecule.

Step 7: Fumarate is converted to malate

Step 8: oxaloacetate is formed with the NADH molecule.

Answer:

Mars

Explanation:

It's the furthest away from the sun so it has the longest orbit

Answer:

the anser is mars

Explanation:

Answer:

Following are the responses to the given question:

Explanation:

Please find the attached file for the solution.

Answer:

B.

Explanation:

The molecules are moving apart meaning that they move faster when heated and move slower when cooled

Answer:

Explanation: Reaction of oxygen with chromium(II) and chromium(III) porphyrins and synthesis of a .mu.-oxo chromium porphyrin derivative.

tion:

Answer:

the bond b/w oxygen and hydrogen atom

Answer: A, the bonds between the two hydrogen atoms and between the two oxygen atoms.

Answer:

the protons are 98

and the neutrons are 153

you're welcome

but next time try to study harder.

Answer:

It is a electrolyte.

Explanation:

I took the test.

It represents an electrolyte.

A level under three can cause muscle weakness, spasms, cramps, paralysis, and respiratory problems. If it continues, kidney problems may occur.

Electrolytes are substances that have a natural positive or negative electrical charge when dissolved in water. They help your body regulate chemical reactions, maintain the balance between fluids inside and outside your cells, and more.

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