gluons because they so tightly glue quarks together.
You are presented with a mixture of iron beads and iron filings. How can you separate them?
Use a magnet
Dissolve the fillings in water
Use a screen
Distillation
NEED HELP ASAP
Answer:
By using a screen
Answer:
Use a screen
Explanation:
Joe wants to prepare a nitrogen containing compound. Which compound can he prepare?
A. Methane
B. Water
C. Ammonia
D. Hydrochloric acid
Answer- The correct answer is ammonia.
Explanation- All other compounds that are formed do not have any essence of Nitrogen in it. Whereas, Methane is a compound with carbon and hydrogen as elements while water has hydrogen and oxygen as its elements.
Lastly Hydrogen and chlorine combined together to form hydrochloric acid. Hence the only compound left with nitrogen is ammonia and has nitrogen and hydrogen as its basic elements.
Answer:
The answer is C. Ammonia
Explanation: I got it right on the test.
Have a good day :)
Rutherfordium-257 was synthesized by bombarding Cf-249 with C-12. Write a nuclear equation for this reaction.
Final answer:
The nuclear equation for the synthesis of rutherfordium-257 by bombarding californium-249 with carbon-12 is 24998Cf + 126C → 257104Rf + 410n. It shows the reactants, products, and the conservation of mass and atomic numbers in the reaction.
Explanation:
The student is asking for a nuclear equation for the synthesis of rutherfordium-257, which is created by bombarding californium-249 (Cf-249) with carbon-12 (C-12). The balanced nuclear equation takes into account the conservation of mass and atomic numbers. The californium-249, which has an atomic number of 98 and a mass number of 249, reacts with carbon-12, which has an atomic number of 6 and a mass number of 12.
The equation is:
24998Cf + 126C → 257104Rf + 410n
In this reaction, rutherfordium-257 has an atomic number of 104 and a mass number of 257. To conserve the mass number and atomic numbers on both sides of the equation, we need to add four free neutrons (n) with a mass number of 1 and an atomic number of 0 to the products side. This completes the balanced nuclear equation for the formation of rutherfordium-257.
When light shines on a sample, each element emits specific wavelengths producing a unique fingerprint called its ______ spectra. A) infrared B) line C) raman D) ultraviolet
Answer:
B.
Explanation:
Answer:
B) line is the correct answer.
Explanation:
When light shines on a sample, each element emits specific wavelengths producing a unique fingerprint called its line spectra.
The line spectrum is electromagnetic spectra consist of discrete spectra lines.
When the atoms are excited they emit ray of specific wavelengths that correspond to various colors. The emitted ray can be seen as a range of colored line, this range of colored lines is termed as line spectra.
lines spectra are usually utilized to recognize atoms and molecules. Each element has individual line emission spectra.
Iodine, I2, has many uses, including the production of dyes, antiseptics, photographic film, pharmaceuticals, and medicinal soaps. It forms when chlorine, Cl2, reacts with iodide ions in a sodium iodide solution. Which of the following half-reactions for this oxidation‑reduction reaction describes the oxidation, and which one describes the reduction? Cl2 + 2e‒ → 2Cl‒ 2I‒ → I2 + 2e‒
Answer:
2I ⁻ → I₂ + 2e⁻ describes the oxidation.Cl₂ + 2e⁻ → 2Cl ⁻ describes the reduction.Explanation:
Oxidation-reduction reaction is the simulaneous oxidation and reduction of the substances and is represented by two half-reactions.
The oxidation half-reaction is the loss of electrons, with the consequent increase in the oxidation state by the oxidized substance.
In this case, the process that shows the loss of electrons is:
2I⁻ → I₂ + 2e⁻That reaction shows:
Two I⁻ ions lose two electrons (one each) to be oxidized to I₂.The change in the oxidation number is from -1 to 0.Hence this half-reaction is the oxidation reaction.On the other hand, the reduction half-reaction is the gain of electrons, with the consequent reduction of the oxidation state by the reduced substance.
In this case, the process that shows the gain of electrons is:
Cl₂ + 2e⁻ → 2Cl⁻That reaction shows:
Two Cl atoms gain two electrons (one each) to be reduced to Cl⁻.The change in the oxidation number is from 0 to - 1.Hence, this half-reaction is the reduction reaction.Summary:
2I ⁻ → I₂ + 2e⁻ describes the oxidation.Cl₂ + 2e⁻ → 2Cl ⁻ describes the reduction.
Which metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe?
manganese The metal that is used as a sacrificial electrode to prevent the rusting of iron is manganese.
Calculate ℰ° values for the galvanic cells described below. (a) cr3+(aq) + cl2(g) equilibrium reaction arrow cr2o72-(aq) + cl -(aq) v (b) io3-(aq) + fe2+(aq) equilibrium reaction arrow fe3+(aq) + i2(aq)
Answer:
[tex]\boxed{\text{(a) 0.00 V; (b) 0.424 V}}[/tex]
Explanation:
We must look up the standard reduction potentials for the half-reactions.
ℰ°
Cr₂O₇²⁻ + 14H⁺ + 6e⁻ ⇌ 2Cr³⁺ + 7H₂O 1.36
Cl₂ + 2e⁻ ⇌ 2Cl⁻ 1.35827
2IO₃⁻ + 12H⁺ + 10e⁻ ⇌ I₂ + 6H₂O 1.195
Fe³⁺ + e⁻ ⇌ Fe²⁺ 0.771
(a) Cr³⁺/Cl₂
We reverse the sign of ℰ° for the oxidation half-reaction. Then we add the two half-reactions and their ℰ° values.
ℰ°/V
2Cr³⁺ + 7H₂O ⇌ Cr₂O₇²⁻ + 14H⁺ + 6e⁻ -1.36
Cl₂ + 2e⁻ ⇌ 2Cl⁻ 1.358 27
2Cr³⁺ + 3Cl₂ + 7H₂O ⇌ Cr₂O₇²⁻ + 6Cl⁻ + 14H⁺ 0.00
(b) Fe²⁺/IO₃⁻
ℰ°/V
Fe²⁺ ⇌ Fe³⁺ + e⁻ -0.771
2IO₃⁻ + 12H⁺ + 10e⁻ ⇌ I₂ + 6H₂O 1.195
10Fe²⁺ + 2IO₃⁻ + 12H⁺ ⇌ 10Fe³⁺ + I₂ + 6H₂O 0.424
The ℰ° values for the cells are [tex]\boxed{\textbf{(a) 0.00 V; (b) 0.424 V}}[/tex]
Answer:
Answer:
\boxed{\text{(a) 0.00 V; (b) 0.424 V}}
Explanation:
We must look up the standard reduction potentials for the half-reactions.
ℰ°
Cr₂O₇²⁻ + 14H⁺ + 6e⁻ ⇌ 2Cr³⁺ + 7H₂O 1.36
Cl₂ + 2e⁻ ⇌ 2Cl⁻ 1.35827
2IO₃⁻ + 12H⁺ + 10e⁻ ⇌ I₂ + 6H₂O 1.195
Fe³⁺ + e⁻ ⇌ Fe²⁺ 0.771
(a) Cr³⁺/Cl₂
We reverse the sign of ℰ° for the oxidation half-reaction. Then we add the two half-reactions and their ℰ° values.
ℰ°/V
2Cr³⁺ + 7H₂O ⇌ Cr₂O₇²⁻ + 14H⁺ + 6e⁻ -1.36
Cl₂ + 2e⁻ ⇌ 2Cl⁻ 1.358 27
2Cr³⁺ + 3Cl₂ + 7H₂O ⇌ Cr₂O₇²⁻ + 6Cl⁻ + 14H⁺ 0.00
(b) Fe²⁺/IO₃⁻
ℰ°/V
Fe²⁺ ⇌ Fe³⁺ + e⁻ -0.771
2IO₃⁻ + 12H⁺ + 10e⁻ ⇌ I₂ + 6H₂O 1.195
10Fe²⁺ + 2IO₃⁻ + 12H⁺ ⇌ 10Fe³⁺ + I₂ + 6H₂O 0.424
The ℰ° values for the cells are \boxed{\textbf{(a) 0.00 V; (b) 0.424 V}}
Explanation:
its right trust
4.32×10^26 atoms of francium would make how many moles of francium sulfide
Answer:
4.32e+26
Explanation:
Answer:
4.32e+26
Explanation:
To balance a chemical equation it may be necessary to adjust the
Answer:
To balance a chemical equation it may be necessary to adjust the coefficients.Explanation:
The coefficients of a chemical equation are the numbers that you put in front of each reactant and product. They are used to balance the equation and comply with the law of mass conservation.
By adjusting the coefficients you obtain the relative amounts (moles) of each product and reactant, i.e. the mole ratios.
Here an example.
The first information is what is called a word equation. E.g. nitrogen and hydrogen react to form ammonia:
Word equation: hydrogen + nitrogen → ammoniaSkeleton equation: H₂ + N₂ → NH₃This equation shows the chemical formulae but it is not balanced. The law of mass conservation is not observed.
So, in order to comply with the law of mass conservation you adjust the coefficients as follow.
Balanced chemical equation: 3H₂ + N₂ → 2NH₃As you see, it was necessary to modify the coefficients. Now the law of conservation of mass is observed and you get the mole ratios:
3 mol H₂ : 1 mol N₂ : 2 mol NH₃
In what way does hemoglobin act as a buffer against changes in blood ph?
Answer:
Explanation:
Hemoglobin removes excess protons from the red blood cells so that they can be excreted through the kidneys.
Hemoglobin binds some of the excess protons released by carbonic acid.
Subsequent binding of oxygen is drastically reduced after the first one is bound.
Hemoglobin produces protons or hydroxide ions as needed to alter the blood pH.
Answer:
Excess acids in the red blood cells are removed by the hemoglobin
Explanation:
In what way does hemoglobin act as a buffer against changes in blood ph?
Excess acids in the red blood cells are removed by the hemoglobin . it is a good receptor of excess proton released by carbonic acid.
It helps to remove acids before it affects the PH of the blood. deoxygenated hemoglobin are better receptor of proton than the oxygenated one.
If hemoglobin does not act as a buffer, there will be changes in the blood's PH and can poison the blood.
Fernanda looked at a sample of paint under a microscope. At right is the sketch she made of what she saw. Label A points to the solid particles of pigment that give the paint its color. The solid particles are the . Label B represents the liquid surrounding the solid particles. This liquid is called the for this mixture. This paint does not settle over time, so it is an example of a .
Answer:dispersed state
dispersed medium
colloid
Answer:
Label A points to the solid particles of pigment that give the paint its color. The solid particles are the (dispersed state.)
Label B represents the liquid surrounding the solid particles. This liquid is called the (Dispersed Medium)
This paint does not settle over time, so it is an example of a (Colloid)
Explanation:
Fernanda looked at a sample of paint under a microscope. At right is the sketch she made of what she saw.
Identify whether each process is either oxidation or reduction:
Al → Al3+ + 3 e-
S2- → S + 2 e-
Cu → Cu2+ + 2 e-
Show ALL work.
Answer:
Al → Al³⁺ + 3 e⁻, is an oxidation process.
S²⁻ → S + 2 e⁻, is an oxidation process.
Cu → Cu²⁺ + 2 e⁻, is an oxidation process.
Explanation:
The oxidation-reduction reaction contains a reductant and an oxidant (oxidizing agent).The oxidation process is the process in which electrons are lost and produce positively charged ions.The reduction process is the process in which electrons is gained and negatively charge ions are produced.So,
Al → Al³⁺ + 3 e⁻, is an oxidation process.Al loses 3 electrons and produce Al³⁺c
S²⁻ → S + 2 e⁻, is an oxidation process.S²⁻ loses 2 electrons and produce S.
Cu → Cu²⁺ + 2 e⁻, is an oxidation process.Cu loses 2 electrons and produce Cu²⁺.
All the given processes (Al becoming Al₃+, S₂- becoming S, and Cu becoming Cu₂+) are examples of oxidation, as each involves the loss of electrons.
Explanation:To determine whether each process is oxidation or reduction, we will look at the change in electron configuration for each reaction.
Al → Al₃+ + 3 e-: Here, Aluminum (Al) is losing three electrons to form Al₃+. This is an oxidation process because oxidation is characterized by the loss of electrons.S₂- → S + 2 e-: In this process, the sulfide ion (S₂-) is losing two electrons to become elemental sulfur (S). This is also an oxidation process, as it involves the loss of electrons.Cu → Cu₂+ + 2 e-: Copper (Cu) loses two electrons to form Cu₂+. Similar to the previous examples, this is an oxidation process because it involves the electron loss.Thus, all the given processes are examples of oxidation, where each element or ion loses electrons.
Which of these is the percent of error in evaluating the molecular mass of a compound if the experimental value was 105.2 amu and the known value was 107.5 amu? f 2.1% g 4.2% h 3.3% j 1.0%
Answer:
The percent error, % error, is 2.1% (option f)Explanation:
1) Data:
a) Experimental value, m₁ = 105.2 amu
b) Known value, m = 107.5 amu
b) % error = ?
2) Formulae:
a) absolute error = | experimental value - known value|
b) % error = [ absolute value / known value ] × 100
3) Solution:
a) absolute error = | m₁ - m | = | 105.2 amu - 107.5 amu | = 2.3 amu
b) % error = [ 2.3 amu / 107.5 amu ] × 100 = 2.1% ← answer
How many significant figures are in 253.00 g?
There are five significant figures
Hope this helps and have a fabulous day :)
It’s five significant figures
In the reaction of sodium with bromine, explain which atom is reduced.
I need you to show ALL the steps because I don't understand.
Answer:
The reduced atom is Br.
Explanation:
The oxidation-reduction reaction contains a reductant and an oxidant (oxidizing agent). The oxidation process is the process in which electrons are lost and produce positively charged ions. The reduction process is the process in which electrons is gained and negatively charge ions are produced. In the reaction of chlorine with calcium:2Na + Br₂ → 2NaBr,
Na loses 1 electrons and is oxidized to Na⁺. (Na → Na⁺ + e).
Br₂ gains 2 electrons and is reduced to 2Br⁻. (Br₂ + 2e → 2Br⁻).
So, the reduced atom is Br.
Which sediment type requires the least amount of energy to be eroded
Answer:
SEDIMENTARY ROCK
Explanation:
Which of the following statements regarding glucose is FALSE?a) Glucose is the main component of starch and glycogen.b) Glucose is also called blood sugar.c) Glucose is the most common disaccharide in our diet.d) Glucose is the most important carbohydrate fuel for the human body.
Glucose is the most common disaccharide in our diet is the false statement regarding glucose.
What is the chemical formula of glucose?The chemical formula of glucose is written as C₆H₁₂O₆.
Starch and glycogen is the highly branched compound or the polymers, which can be formed from the fundamental monomer unit of glucose. Glucose is also present in the blood of as a blood sugars and used as a source of energy or we can say that fuel for the human body. Glucose is a monosaccharide, it means it will not able to break down in following sub units.
Hence, option (c) is false because glucose is a monosaccharide.
To learn more about glucose, visit the below link:
https://brainly.com/question/461228
The false statement about glucose is (C), that is Glucose is the most common disaccharide in our diet. Glucose is actually a monosaccharide. Common disaccharides include sucrose, lactose, and maltose.
To determine which statement regarding glucose is FALSE, let's analyze the given options:
a) Glucose is the main component of starch and glycogen. This is true, as both starch and glycogen are polysaccharides composed of glucose units.b) Glucose is also called blood sugar. This is true, because glucose circulates in the blood as a primary energy source.c) Glucose is the most common disaccharide in our diet. This statement is false. Glucose is a monosaccharide, not a disaccharide. Common disaccharides include sucrose, lactose, and maltose.d) Glucose is the most important carbohydrate fuel for the human body. This is true, as it is the primary energy source for cellular functions.The radioactive element carbon-14 has a half-life of 5750 years. a scientist determined that the bones from a mastodon had lost 72.6% of their carbon-14. how old were the bones at the time they were discovered?
We could avoid a large increase in temperature if greenhouse emissions peaked by the year of ?
To curb the increase in Earth's temperature due to greenhouse gases, we need to reach 'net zero' carbon emissions by 2050 or sooner. The problem arises largely from burning fossil fuels and deforestation, leading to increased CO2 in the atmosphere. Continued trajectory could double Earth's CO2 levels from pre-industrial times by the end of the century.
Explanation:To avoid a large increase in temperature due to greenhouse gas emissions, it is crucial that these emissions peak as soon as possible. According to the Union of Concerned Scientists, we should aim for 'net zero' carbon emissions by 2050 or even sooner. This would mean that no more carbon enters the atmosphere than is removed.
Greenhouse gases, primarily carbon dioxide, are largely a result of burning fossil fuels, such as coal and oil. Alongside this, the destruction of tropical forests which absorb CO2 from the atmosphere exacerbates the problem.
If this trajectory continues, Earth's CO2 levels are predicted to double from pre-industrial levels by the end of this century, leading to potentially catastrophic climactic changes. Hence, mitigation strategies to stabilize carbon emissions constitute a major part of our global strategy towards climate change.
Learn more about Greenhouse Gas Emissions here:https://brainly.com/question/34902503
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A change in the amount of heat energy lost or gained by a system during a process is_________________________
Answer:
chemical change
A stable atom that has a large nucleus most likely contains....?
A.) more neutrons than protons
B.) more protons than neutrons.
C.) equal numbers of protons and neutrons.
D.) changing numbers of protons and neutrons.
A. More neutrons than protons
it would likely include more neutrons than protons.
when 2.85 moles of chlorine reacts with excess tin, how many moles of tin choloride are formed?
chlorine by twenty øne piløts
Under which set of conditions is δgrxn for the reaction a(g) → b(g) most likely to be negative?
Answer:
delta G = -ve.. This means the rxn is spontaneous
Explanation:
For spontaneous rxn
Delta H = - ve
Delta S = +ve
And no. Of moles at product side should be less than tha reactant side.
I wrote all i know.. Hope this helps you
Answer:
This question is incomplete but the completed question is below
Under which set of conditions is ΔGrxn for the reaction A(g)→B(g) most likely to be negative?
Under which set of conditions is for the reaction most likely to be negative?
(a) PA=0.010 atm; PB=0.010 atm
(b) PA=0.010 atm; PB=10.0 atm
(c) PA=10.0 atm; PB =0.010 atm
(d) PA=10.0 atm; PB =10.0 atm
The correct option is (c)
Explanation:
The Gibb's free energy (ΔG) of the reaction will be negative when the reaction is spontaneous and a reaction is said to be spontaneous when more products are been formed.
When you consider the reaction provided in the question, the "g" in bracket means gas while A represent reactant(s) and B represents product(s)
When a reaction involves gases, an increase in pressure causes more products to be formed hence the pressure on the reactant side (PA) will most likely be more than the pressure on the product side (PB). The only option that has more pressure on the reactant side (PA = 10.0 atm) than on the product side (PB = 0.010 atm) is option c.
An expandable container of oxygen gas has a volume of 125 mL and a temperature of 25.0?C. What volume will the gas occupy at 55°C?
Answer:
137.6 mL.
Explanation:
We can use the general law of ideal gas: PV = nRT.where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R is the general gas constant,
T is the temperature of the gas in K.
If n and P are constant, and have different values of V and T:(V₁T₂) = (V₂T₁)
Knowing that:
V₁ = 125.0 mL, T₁ = 25°C + 273 = 298 K,
V₂ = ??? mL, T₂ = 55°C + 273 = 328 K,
Applying in the above equation(V₁T₂) = (V₂T₁)
∴ V₂ = (V₁T₂)/(T₁) = (125.0 mL)(328 K)/(298 K) = 137.6 mL.
Final answer:
To find the volume of the gas at a different temperature, we can use Charles's Law. By using the formula V1/T1 = V2/T2 and substituting the known values, we can determine that the volume of the gas at 55°C is 275 mL.
Explanation:
To solve this problem, we can use Charles's Law, which states that the volume of a gas is directly proportional to its temperature, assuming the pressure remains constant. We can use the formula:
V1/T1 = V2/T2
Given that the initial volume (V1) is 125 mL and the initial temperature (T1) is 25.0°C, we can substitute these values into the formula. Rearranging the formula to solve for V2, we get:
V2 = (V1*T2)/T1
Substituting the known values, we have:
V2 = (125 mL * 55 °C) / 25.0 °C = 275 mL
Therefore, the volume of the gas at 55°C is 275 mL.
Which is the strongest oxidizing agent? lithium; li+ + e– → li e0 = –3.05 v hydrogen; 2h+ + 2e– → h2e0 = 0.00 v fluorine; f2 + 2e– → 2f–e0 = +2.87 v?
Answer:
Fluorine; f2 + 2e– → 2f–e0 = +2.87 v
Explanation:
Oxidizing agents remove electrons from other atoms to complete a stable outer octet. In this case, Flourine is an oxidizing agent.Hydrogen and lithium are reducing agents because they can lose electrons more easily than accept them. We can also use the electrode potential or e.m.f to determine whether an element is a strong oxidizing agent or not. An element with the largest positive e.m.f is the strongest oxidizing agent as it indicates that its more electronegative.After an atomic bomb has been dropped, the damage continues to get worse.
Why is this?
A. Because a fission reaction has no products
B. Because people get sick from exposure to high levels of radiation
C. Because atomic bombs continue going off
D. Because fusion reactions occur afterward
Answer:
C. Because people get sick from exposure to high levels of radiation
Explanation:
plants take in carbon dioxide from the air through holes in the
a. xylem
b. spongy layer
c. palisade layer
d. vascular bundle
Answer:
c. palisade layer
According to the storage ladder protocol, raw meat should be stored on shelves based on its? A.Minimum internal cooking temperature. B.Expiration date C. Meat should never be stored on shelves D.Maximum internal cooking temperature
Answer:
D.Maximum internal cooking temperature
Explanation:
According to the Storage Ladder Protocol, food storage in refrigerator should have a proper rules to store them. On the top most shelf, Prepared foods should be kept. On the second shelf, Fruits and Vegetable are kept. Fish and Sea foods are kept on the third shelf. The fourth shelf is reserved for the Beef and Porks. The next shelf is for Ground Meat. The last shelf is for Poultry items. So, this proves that the Ground Beef should be stored above the Chicken. A diagram is attached below to explain the storage order in a more appropriate manner.
According to the Storage Ladder Protocol, raw meat should be stored on shelves based on its Minimum internal cooking temperature
The storage ladder protocol is a sets of rules created to make sure that varieties of unprepared and prepared food are properly stored in a refrigerator.
Further ExplanationThe storage ladder protocol is meant to determine which shelf each variety of food should be stored on and also provides a guide as to which food should be below or above.
For example, prepared food must be stored on the top shelf, Foods and vegetables are stored on the second shelf, fish and seafood should be stored on the third shelf, beef and pork should be kept on the fourth shelf, Ground meat should be stored on the fifth shelve while poultry items should be kept on the bottom shelf.
Also, to ensure proper food hygiene, make sure that the temperature of your fridge is set between 0 and 5 degrees Celsius. If the temperature is maintained within that range, it will slow down the rate at which the food gets to spoil and also prevent harmful bacteria from multiplying.
Also, do not consume any food that has passed its expiry date because it will be easy for bacteria to grow on such food.
LEARN MORE:
How should food be stored to avoid cross-contamination: https://brainly.com/question/4415007According to the storage ladder protocol, raw meat should be stored on shelves based on its? https://brainly.com/question/12570432KEYWORDS:
refrigeratorstorage ladder protocolraw meattemperaturerulesDistinguish between a solution in general and an aqueous solution
Answer:
What distinguish a solution in general from an aqueous solution is the solvent. A solution in general may contain any solvent, which may be solid, liquid or gas, while an aqueous solution is formed with water as solvent.Explanation:
A solution in general is a homogeneous mixture in which a substance, named solute, is dissolved, in other substance, name solvent.
Solutions may be in solid, liquid or gas state. There are many kind of solvents. Usually, in a lab you work with liquid solutions. Some liquid solvents are: ethanol, glycerin, hexane, benzene, and water, among many others.
Aqueous solution is a solution where the solvent is water. Of course, the solute may be any one: NaCl, sugar, ethanol, an acid, a base, a salt.
What distinguish a solution in general and an aqueous solution is the solvent.
What is the equilibrium constant expression for the following reaction?
COCl2(g) = CO(g) + Cl2(g)
Keq=(COCl2)/(CO)+(Cl2)
Keq= (CO)(Cl2)/(COCl2)
Keq=(COCl2)/(CO)(Cl2)
Keq=(CO)+(Cl2)/(COCl2)
Answer:
Keq = [CO][Cl₂]/[COCl₂].
Explanation:
For the balanced reaction:
COCl₂(g) ⇄ CO(g) + Cl₂(g).
The equilibrium constant can be expressed as concentration equilibrium constant (Kc) or pressure equilibrium constant (Kp).
The equilibrium constant is the ratio of the product of products concentrations to the product of the reactants concentrations.
Keq = [CO][Cl₂]/[COCl].