Need help with this:A. For the reaction CO(g) + 2H2(g) < => CH3OH(g) delta G degree 700k = -13.457 kJ. What is Kp for this reaction at 700 K?B. What is the equilibrium constant (K0 at 25 degree C for the following cell reaction?Fe(s) + Cd 2+ (aq) --> Fe2+(aq) + Cd(s) E degree cell = 0.010V

Answer:

Chromatography is a method of separating out materials from a mixture. Ink is a mixture of several dyes and therefore we can separate those colors from one another using chromatography. When ink is exposed to certain solvents the colors dissolve and can be seperated out.

Answer:

1. there are 29,000 grams present in 29 kilograms

2. there are 2000 millimeters present in 2 meters.

check out this conversion table if you get stuck again! :)

Answer:

I believe it is the last option: atoms

Answer:

78878

Explanation:

The volume in mL needed from a 4.4 m stock solution to prepare a 0.73 m 252mL diluted solution is 805 mL.

The molarity expression is given as :

molarity = number of moles / volumes in L

moles = molarity × volumes

          = 0.73 × 0.252

          =   0.183 mol

now from the formula of molarity we can calculate the volume of 4.4 M stock:

molarity = moles / volume

volume = moles / molarity

volume = 0.183 / 4.4

volume = 0.805 L = 805 mL

Thus, The volume in mL needed from a 4.4 m stock solution to prepare a 0.73 m 252mL diluted solution is 805 mL.

To learn more about molarity here

https://brainly.com/question/16727614

#SPJ4

The law of conservation of matter says that in chemical reaction and the statement is the total mass of the product must equal the total mass of the reactant

The law of conservation of mass states that the mass in an isolated system is neither created nor destroyed by chemical reaction or physical transformation and according to the law of conservation of mass and the mass of the product in a chemical reaction must equal to the reactant that means total mass of the product must equal the total mass of the reactant

Know more about chemical reaction

https://brainly.com/question/28711001

#SPJ1

The chemical equation for Direct Combination of Cobalt (III) and nitrogen, with the product given can be represented as given : Cobalt (III) + nitrogen → Cobalt nitride (Co3N2)When Cobalt (III) and nitrogen are combined using direct combination method, the product formed is Cobalt nitride (Co3N2).

The balanced chemical equation for this reaction is shown below.2 Co (III) + 3 N2 → Co3N2.Cobalt nitride is a blackish gray powder with a melting point of 1750 °C and a density of 6.5 g/cm3. Cobalt nitride is an important metal nitride that is used in the preparation of cobalt metal catalysts, magnetic alloys, and other materials.

For more such questions on Chemical equation

https://brainly.com/question/26694427

#SPJ8

Yes, not allowing reactants in a   to have enough time to fully react can count as human error in a lab. In chemistry, reaction time is an essential factor in determining the completeness and efficiency of a chemical reaction.

If the reactants are not given sufficient time to react, the reaction may be incomplete, leading to inaccurate or inconsistent results. This can happen due to human error, such as not monitoring the reaction time or not following the reaction protocol correctly.

Therefore, ensuring proper reaction time is crucial to obtain reliable and accurate results in a lab.

The balanced chemical equation for the reaction between sulfuric acid and sodium chloride to produce hydrogen chloride gas and sodium sulfate is:

2H₂SO₄ + 2NaCl -> 2HCl + Na₂SO₄

The equation given above is:

Sulfuric acid + sodium chloride -> hydrogen chloride + sodium sulfate

Therefore, In this equation, sulfuric acid (H₂SO₄) is the acid and sodium chloride (NaCl) is the base. The acid donates protons (H+ ions) to the base, resulting in the production of hydrogen chloride gas (HCl) and a salt (Na₂SO₄).

The overall reaction is an example of an acid-base reaction, in which the acid and base react to produce a salt and a neutralization product (in this case, HCl).

Learn more about balanced chemical equation from

https://brainly.com/question/26694427

#SPJ1

See full question below

When sulfuric acid is added to solid sodium chloride and the mixture is heated, hydrogen chloride gas is generated, leaving a solid residue of sodium sulfate. Give the balanced chemical equation for this reaction.

1.  the final concentration of NaOH after adding 125 mL of water to 45.3 mL of 0.71 M NaOH solution is approximately 0.189 M.

2.  the final concentration of KOH after adding 550 mL of water to 125 mL of 3.01 M KOH solution is approximately 0.557 M.

1.) If 125 mL of water is added to 45.3 mL of a 0.71 M NaOH solution, the resulting solution will be a diluted NaOH solution. The addition of water will increase the total volume while reducing the concentration of NaOH. To determine the final concentration of NaOH, we need to consider the conservation of moles.

First, let's calculate the moles of NaOH in the initial solution:

moles of NaOH = volume (in L) × concentration (in M)

moles of NaOH = 0.0453 L × 0.71 M = 0.0321433 moles

After adding 125 mL (0.125 L) of water, the total volume of the solution becomes 0.0453 L + 0.125 L = 0.1703 L.

To find the final concentration, we divide the moles of NaOH by the total volume:

final concentration of NaOH = moles of NaOH / total volume

final concentration of NaOH = 0.0321433 moles / 0.1703 L ≈ 0.189 M

Therefore, the final concentration of NaOH after adding 125 mL of water to 45.3 mL of 0.71 M NaOH solution is approximately 0.189 M.

2.) If 550 mL of water is added to 125 mL of a 3.01 M KOH solution, the resulting solution will also be a diluted solution. Again, we will apply the conservation of moles to determine the final concentration of KOH.

First, calculate the moles of KOH in the initial solution:

moles of KOH = volume (in L) × concentration (in M)

moles of KOH = 0.125 L × 3.01 M = 0.37625 moles

After adding 550 mL (0.55 L) of water, the total volume of the solution becomes 0.125 L + 0.55 L = 0.675 L.

To find the final concentration, divide the moles of KOH by the total volume:

final concentration of KOH = moles of KOH / total volume

final concentration of KOH = 0.37625 moles / 0.675 L ≈ 0.557 M

For more such questions on concentration visit:

https://brainly.com/question/28564792

#SPJ8

How is a nuclear change or reaction fundamentally different from a chemical reaction?

(1) Nuclear reactions involve a change in an atom's nucleus, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. Hope this helps! :)

Answer: yes

Explanation:

Answer:

yes

Explanation:

due to the properties of baron she should be fine

The h-alpha photons has wavelength 656 nanometers (nm) is higher frequency.

The H-alpha frequency (656.28 nm) light from the Sun that reaches Earth comes from a rarified layer of hydrogen gas that is just above the photosphere, the Sun's brilliant surface.

To learn more about  frequency refer to:

https://brainly.com/question/254161

#SPJ4

h-beta photon has higher frequency. When two waves of different wavelengths are compared, a higher frequency does not always imply faster movement, though it can.

Frequency is a measurement of how frequently a recurring event, such as a wave, occurs in a given period of time.

The frequency of a repeating event is the number of occurrences per unit of time. It is also known as temporal frequency to distinguish it from spatial frequency and ordinary frequency to distinguish it from angular frequency.

Frequency is measured in hertz (Hz), which is equal to one hertz per second. The period is the reciprocal of the frequency because it is the time duration of one cycle in a repeating event. For example, if a heart beats 120 times per minute, the period, T (the time interval between beats), is half a second.

Longer and slower waves, such as ocean surface waves, are typically described by wave period rather than frequency. Short and fast waves, such as audio and radio, are usually described by frequency rather than period.

To learn more about Frequency refer :

https://brainly.com/question/254161

#SPJ4

Answer:

Is this from edge?

if so which lesson is it from and is this an assignment or a quiz?

I think the answer is C (Much of the evidence for evolution comes from fossils.)

A fossil is the remains or traces of organisms that lived in the past.The statement is true about fossils is much of the evidence for evolution comes from fossils. Therefore, option C is correct.

Any surviving remains, impression, or evidence of a once-living thing from a previous geological epoch is referred to as a fossil. Examples include exoskeletons, bones, shells, animal or microbe imprints in stone, items preserved in amber, hair, petrified wood, and DNA traces. The fossil record is the collection of all fossils.

The remains or evidence of prehistoric life that have been preserved by natural processes are known as fossils. Shells, bones, animal or microbe imprints in stone, exoskeletons, items preserved in amber, petrified wood, coal, hair, oil, and DNA traces are a few examples of fossils.

The majority of fossils are created when a living thing (such as an animal or plant) dies and is swiftly buried by sediment (such as mud, sand or volcanic ash).

Thus, option C is correct.

To learn more about fossils, follow the link;

https://brainly.com/question/14988327

#SPJ2

Answer:

Explanation:

The correct answer is B. isotopes.

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. This difference in the number of neutrons leads to variations in their atomic mass but does not affect their chemical properties or reactivity. Isotopes of an element have similar chemical behaviors but may have slightly different physical properties due to the difference in atomic mass.

Hope this answer your question

Please rate the answer and

mark me ask Brainliest it helps a lot

The linear order of amino acids in a protein helps determine the primary structure of a protein.  it is also the foundation upon which all higher levels of protein structure are built.

The primary structure of a protein refers to the linear sequence of amino acids that make up the protein. Each protein has a unique primary structure that is determined by the order of the amino acids. This sequence is crucial because it determines the way in which the protein will fold and form its secondary, tertiary, and quaternary structures.

The primary structure of a protein refers to the linear sequence of amino acids that make up the protein chain. This sequence is determined by the genetic code in DNA. The primary structure is crucial because it dictates the folding and interactions that form the higher levels of protein structure, such as secondary, tertiary, and quaternary structures.

To know more about amino acid visit:

https://brainly.com/question/31872499

#SPJ11

Answer:

a

Explanation:

me say so

Answer:

C

Explanation:

Hydrogen bonds are responsible for base pair formation of in the DNA. Covalent bonds are found in each linear strand  of the DNA double Helix.

The DNA double helix is held together by two types of bonds. Those are covalent and hydrogen. Covalent bonds occur within each linear strand of DNA. It strongly bond the bases, sugars, and phosphate groups  that both within each component and between components. Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing in the DNA. The hydrogen bonds are individually weak but quite strong together. A hydrogen bond donor includes the hydrogen atom and the atom to which it is most tightly linked with.

To learn more about DNA double helix please visit:

https://brainly.com/question/21148612

#SPJ4

Answer:

the correct answer is lost of jobs,higher taxes, and elimination of tourist activities

Explanation:

hope you have a blessed day:)

Answer:

the correct answer is lost of jobs,higher taxes, and elimination of tourist activities

Explanation:

thank you for the answer i hope EVERYONE has A BLESSED DAY!!!!!!!!!!!!!!!!!!!!!!

Answer:

vacuole

Explanation:

Brainliest please

The theoretical yield of iron metal : 16.418 g

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

2 Fe₂O₃ + 3 C ⇒ 4 Fe + 3 CO₂

mol Fe₂O₃ (MW=159,69 g/mol) :

\(\tt \dfrac{23.5}{159.69}=0.147\)

mol  Fe₂O₃ : mol Fe = 2 : 4

mol Fe :

\(\tt \dfrac{4}{2}\times 0.147=0.294\)

mass Fe(the theoretical yield) :

\(\tt 0.294\times 55.845~g/mol=16.418~g\)

Answer:

The correct answer with signfigs is 16.4 for the first part

The second box is 88.4

Explanation:

Radiocarbon dating is used to determine the age of an object.

Radiocarbon dating is a method used to estimate the age of organic materials based on the decay of radioactive carbon-14 isotopes. This technique is widely employed in archaeology, geology, and other scientific fields. When living organisms, such as plants or animals, are alive, they maintain a ratio of carbon-14 to stable carbon-12 isotopes.

However, once they die, the carbon-14 begins to decay at a known rate. By measuring the remaining carbon-14 and comparing it to the initial ratio, scientists can calculate the time that has passed since the organism's death. This method is particularly useful for dating objects that are up to around 50,000 years old. Palynology is the study of pollen grains, taphonomy focuses on the process of decay and fossilization, and paleontology deals with the study of fossils but not specifically dating methods.

To learn more about Radiocarbon dating click here

brainly.com/question/12693872

#SPJ11

Answer:

100.12*C

Explanation:

Our solute is glycerin and the solvent is water.

1) Convert grams of the solute to moles:

n (moles)=Mass/Molar Mass => 1/92.1=0.01086 moles

2) Find molality from moles of solute and mass of solvent in Kg:

m (molality)=moles of solute/Kg solvent => 0.01086/0.0478=0.2272m

3) Finding the change boiling point (Bp) using molality times the Bp constant (the Bp constant of water is 0.512*C/m): 0.2272*0.512=0.116*C

4) Under 1 atm, the boiling point of water is exactly 100 and to find the new Bp, simply add the change Bp completed in step 3 with the boiling point of water: 100+0.116=100.116*C or 100.12*C

Hope this helps!

The Lewis structure of HCCH is a triple bond between the two carbon atoms and a single bond between each carbon atom and a hydrogen atom.

To draw the Lewis structure for HCCH (acetylene), follow the below steps:

Step 1: Find out the total number of valence electrons of all atoms.Valence electrons in H = 1 electron.Valence electrons in C = 4 electrons. Total valence electrons in HCCH molecule = (2 × 1) + (2 × 4) = 10 electrons.

Step 2: Choose the central atom and draw the bond line structure.The central atom in HCCH is C. Two H atoms are attached to one C atom, and another C atom is attached to it through a triple bond. HC≡CH

Step 3: Add electrons to outer atoms first.Complete octet of the H atoms by adding one electron to each. Two electrons have now been used. Still, there are 8 more electrons left. These electrons are used to complete the octet of the C atom. The C atom has only four valence electrons but it needs eight electrons to achieve octet configuration. Therefore, the C atom has four electrons short. These four electrons will come from the nonbonding electrons of the other C atom bonded to it.

Step 4: Add electrons to the central atom.The second C atom is also deficient in electrons. Therefore, it will have only two electrons in its valence shell. The other four electrons will be in the form of a triple bond with the first C atom. Since triple bond shares three electrons, two more electrons are needed to complete the octet of the second C atom. These electrons come from the nonbonding electrons of the first C atom bonded to it. Hence, the Lewis structure for HCCH (acetylene) is:Main Answer: H-C≡C-H

Therefore, the Lewis structure of HCCH is a triple bond between the two carbon atoms and a single bond between each carbon atom and a hydrogen atom.

To know more about Lewis structure visit:

brainly.com/question/29603042

#SPJ11

Answer: See explanation

Explanation:

1. Separation of charges in an object without touching it is (charging by induction).

2. The work done moving a positive test charge between two points in an electric field divided by the magnitude of the test charge is the electric (potential difference).

3. An electric (conductor) is a material through which charges move about easily. (Charging by conduction) is giving a neutral object a charge by touching it with a charged object.

4. A material through which electrical charges does not move easily is an electrical (insulator).

5. The lines providing a picture of the size and strength of the field around a charged object are called the (electric field lines).

6. The property of the space around a charged object that exerts a force on other charged objects is the (electric field).

7. A device that helps determine charge using pieces of metal foil is an (electroscope).

8. The magnitude of the charge of an electron is the (elementary charge)

According to superposition principle of rocks the oldest sedimentary rock layer is in the bottom and the youngest will be the upper layer.

One of the geological laws that geologists use to calculate the relative ages of rock strata, or layers, is the law of superposition. According to this theory, rock layers are stacked or deposited one on top of the other. The bottom will have the oldest rock strata and the top will have the youngest.

Earlier rocks, which were horizontally deposited over the older layers, are buried deeper in the planet than younger ones. This now widely accepted idea, which is also known as the Law of Superposition, is regarded as a fundamental rule of geology.

Long before the technology existed to compute the precise ages of rocks, geologists were able to use this principle to identify the oldest rock layers.

To find more on superposition principle, refer here:

https://brainly.com/question/2699638

#SPJ1

The fact that coal releases more heat than charcoal means that the chemical potential energy is lower in charcoal than in coal.

When the substance is burnt in oxygen, the chemical potential energy stored in the substance is converted into heat energy. The substance that has the most chemical potential energy releases the most energy when burnt.

In burning coal and charcoal, you notice that coal releases more heat energy than charcoal. This means that the chemical potential energy is lower in charcoal than in coal.

Learn more; https://brainly.com/question/22220547