which statement is true about chemical equilibrium constant keq? group of answer choices A. a keq larger than 1 means the reaction favors toward the reactant side. B. a large keq means the reaction rate is very fast. C. for a specific reaction at a fixed temperature, there can be more than one keq value. D. a keq larger than 1 means the reaction favors toward the product side. E. to calculate keq, we can use the initial concentration to calculate the value.
Answers
The statement that is true about the chemical equilibrium constant K eq is: A K eq larger than 1 means the reaction favors toward the product side.
When a chemical reaction occurs, it does not continue indefinitely; rather, it reaches a point at which the forward and reverse reactions occur at the same rate, and this is referred to as chemical equilibrium.
Chemical equilibrium refers to the point at which a reaction has reached a point at which the concentrations of the reactants and products no longer change over time,
implying that the forward and reverse reactions are occurring at the same rate.
K eq = ([C]^c[D]^d)/([A]^a[B]^b)
Where [A], [B], [C], and [D] represent the concentrations of the reactants and products, respectively, and a, b, c, and d represent the stoichiometric coefficients of the reactants and products.
The K eq value is a measure of the degree to which a reaction is likely to proceed.
The magnitude of the K eq value provides information about the position of the equilibrium, the extent of the reaction, and the relative concentration of reactants and products.
A K eq value greater than 1 indicates that the reaction is favored in the forward direction (product formation) at equilibrium,
whereas a K eq value less than 1 indicates that the reaction is favored in the reverse direction (reactant formation).
A K eq value of 1 indicates that the reactants and products are present in roughly equal proportions at equilibrium.
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Related Questions
Enrichment of nuclear fuel 2 points A. increases the relative concentration of uranium-235 to 3-20% to produce energy in a power plant. B. increases the relative concentration of uranium-235 to 30-50% to avoid a nuclear explosion at higher percentages. C. increases the relative concentration of uranium-235 from 60% to 90% to achieve maximum electricity generation D. decreases the relative concentration of uranium-235 from 100% to 30-50% to avoid a nuclear explosion at higher percentages.
Answers
Answer:
B. increases the relative concentration of uranium-235 to 30-50% to avoid a nuclear explosion at higher percentages.
Explanation:
Uranium enrichment may be defined as a process which is necessary for creating effective nuclear fuel from the mined uranium by mainly increasing the percentage of the uranium-235 that undergoes fission with a thermal neutrons.
The enrichment process removes the unwanted uranium-238, thus making uranium 235 concentration higher. It takes up much work to increase the relative concentration of the uranium 235 to make it 30% to 50% so as to avoid a nuclear explosion at such higher percentages.
Requires a medium to travel (travel fastest through solid-like metal train tracks A Waves B Sound Waves C Light Waves D matter
Answers
Answer:
b
Explanation:
becuase of sound waves
Which has more mass, 2 kg of steel or 5 kg of feather.
Answers
Answer:
5 kg of feather
Explanation:
Which information must be known about a compound to find the molecular formula from the empirical formula?
Odensity
O formula mass
O percent composition
O mole ratio
Answers
Given subsets A and B of Ω, identify all sets in σ(A,B).
Answers
The sets in σ(A,B) are the smallest σ-algebra that contains both A and B.
In probability theory and measure theory, a σ-algebra is a collection of subsets of a given set Ω that satisfies certain properties. The notation σ(A,B) represents the smallest σ-algebra that contains both subsets A and B. This means that σ(A,B) consists of all possible subsets that can be formed by taking the union, intersection, and complement of sets in A and B.
To understand this concept better, let's consider an example. Suppose we have a set Ω = {1, 2, 3, 4} and two subsets A = {1, 2} and B = {2, 3}. The σ-algebra σ(A,B) would include the empty set, the set Ω itself, as well as other subsets such as {1}, {2}, {3}, {1, 2}, {2, 3}, and {1, 2, 3}. It would also include their complements, for example, the complement of {1} would be {2, 3, 4}.
The σ-algebra σ(A,B) is important in probability theory as it allows us to define probability measures and study various properties of events and random variables. By identifying all the sets in σ(A,B), we can determine the range of events that can be analyzed within this framework.
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3) 1.90 L of gas are heated from 25.00°C to 95.00°C. If the pressure remains constant, what will be the new
volume?
Answers
The new volume of the gas with 1.90 L of gas are heated from 25.00°C to 95.00°C. If the pressure remains constant, is 72.2L.
Calculation of volumeAccording to Charles Law the formula given here is V1/T1=V2/T2
Substituting the values in the equation we get
1.9/25=V2/ 95
V2= 1.9× 95/25
V2= 72.2 L
The experimental gas law known as Charles's law outlines how gases have a tendency to expand when heated. Charles's law is now expressed as follows: The volume and Kelvin temperature of a sample of a dry gas will be directly proportional to the pressure, when the pressure is held constant.
The volume of a gas is equal to a constant amount multiplied by the temperature of the gas as determined by the Kelvin scale (zero Kelvin is equivalent to -273.15 degrees Celsius), according to the physical law known as Charles' law.
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How is the stability of a nucleus affected by changing the number of nuclear particles?
Answers
Answer:
Greatly affected.
Explanation:
The stability of a nucleus is greatly affected by changing the number of nuclear particles because changing the number of nuclear particles i.e. neutron or proton will leads to change the element. When we change the number of protons in an atom, we will change the atom from one element to a different element. Sometimes, when you add a proton to an element, the element will become radioactive in nature so we can conclude that changing number of nuclear particles impact the stability of nucleus of an atom.
The solubility of Z is 60 g/ 100 g water at 20 °C. How many grams of solution are produced when a saturated solution is prepared using 300 grams of water at the same temperature? a 240 b 180 c 120 d 480
Answers
Answer:
Saturated solution = 180 gram
Explanation:
Given:
Solubility of Z = 60 g / 100 g water
Given temperature = 20°C
Amount of water = 300 grams
Find:
Saturated solution
Computation:
Saturated solution = [Solubility of Z] × Amount of water
Saturated solution = [60 g / 100 g] × 300 grams
Saturated solution = [0.6] × 300 grams
Saturated solution = 180 gram
calculate the combined mass of the two reactants, 5% vinegar and sodium hydroxide.
Answers
The combined mass of the two reactants, 5% vinegar and sodium hydroxide, is 15 grams.
To calculate the combined mass of the two reactants, 5% vinegar and sodium hydroxide, we need to know the masses of each individual reactant and their respective quantities.
Let's assume we have 100 grams of the 5% vinegar solution. Since vinegar is a solution of acetic acid (CH3COOH) in water, the acetic acid concentration is 5% of the total solution mass. Therefore, the mass of acetic acid in 100 grams of vinegar is 5 grams.
Next, we need to consider the mass of sodium hydroxide (NaOH). Let's assume we have 10 grams of sodium hydroxide.
To find the combined mass, we simply add the masses of the two reactants:
Combined mass = mass of acetic acid + mass of sodium hydroxide
Combined mass = 5 grams + 10 grams
Combined mass = 15 grams
Therefore, the combined mass of the two reactants, 5% vinegar and sodium hydroxide, is 15 grams.
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50g of h2o at 35 was mixed with 75g of h20 at 80c what is the equilibrium temo after mining both liquids
Answers
the equilibrium temperature after mixing the two liquids is approximately 4.47 degrees Celsius.
The equilibrium temperature after mixing the two liquids is the temperature at which the heat gained by the cooler liquid is equal to the heat lost by the hotter liquid.
In this case, the cooler liquid is 50 grams of water at 35 degrees Celsius and the hotter liquid is 75 grams of water at 80 degrees Celsius. The heat gained by the cooler liquid can be calculated using the following formula:
Heat lost = mass multiplied by heat capacity multiplied by temperature change
Plugging in the values, we get:
heat gained = 50g * 4.184 J/g*C * (T - 35C)
The heat lost by the hotter liquid can be calculated using the same formula:
Heat lost = mass multiplied by heat capacity multiplied by temperature change
Plugging in the values, we get:
heat lost = 75g * 4.184 J/g*C * (80C - T)=
50g * 4.184 J/gC * (T - 35C) = 75g * 4.184 J/gC * (80C - T)
Solving for T gives:
T = (50g * 4.184 J/gC * 35C + 75g * 4.184 J/gC * 80C) / (50g * 4.184 J/gC + 75g * 4.184 J/gC)
Plugging in the values and simplifying gives:
T = (50 * 4.184 * 35 + 75 * 4.184 * 80) / (50 * 4.184 + 75 * 4.184)
= (742 + 1674.4) / (209.2 + 329.6)= 2416.4 / 538.8
= 4.47 degrees Celsius
Thus, the equilibrium temperature after mixing the two liquids is approximately 4.47 degrees Celsius.
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2. Which one correctly pairs the chemical and empirical formulas?
O MgO, MgO₂
OHg₂Cl₂, HgCl
OC₂H302, CH₂0
O C4H80, C₂H40
Answers
Hg₂Cl₂, HgCl is correctly pairs the chemical and empirical formulas.
What are chemical/molecular formulas and empirical formulas?Chemical formula, also known as molecular formula, is the actual formula of the compound depicting the exact ratio of atoms of elements present in the compound.The empirical formula depicts the lowest whole number ratio of atoms of elements present in a compound.To check the correct empirical formula for the given molecular formula, we divide the ratio of atoms of each element in the molecular formula by the smallest available amount of atom to obtain a smallest whole no. ratio formula.On dividing Hg\(_{2}\)Cl\(_{2}\) by the smallest available ratio of 2, we get its empirical formula to be HgCl.So option Hg\(_{2}\)Cl\(_{2}\), HgCl is correct.
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consider the diagram below
What does D represent?
O energy of the products
O energy of the reactants
O reactants, Q +R
O products, N +M
Answers
Calculate the standard potential, ∘, for this reaction from its δ∘ value. x(s) y2 (aq)⟶x2 (aq) y(s)δ∘=−61. 0 kj
Answers
The equilibrium potential and the standard free energy change can give the standard potential of the electrodes. The standard cell potential is 0.32 V.
What is standard free energy change?A reaction's standard free energy change (∆Gº') is the energy produced when the reactants undergo changes to form the product. It is given as,
ΔG° = -nFE° cell
Given,
Standard free energy change (ΔG°) = − 61. 0 kJ
Number of moles of electrons (n) = 2
Faraday's constant (F) = 96500 C
The standard cell potential (E° cell) is calculated as:
E° cell = ΔG° ÷ -nF
E° cell = − 61000 ÷ -(2 × 96500)
E° cell = 61000 ÷ 193000
= 0.32 V
Therefore, 0.32 V is the standard cell potential of the cell.
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Sodium forms an ionic bond with chlorine when sodium _____ an electron and chlorine _____ an electron.
Answers
Answer:
loses, gains
Explanation:
NaCl ------------------------> Na+ + Cl-
(on electrolysis)
Sodium loses an electron whereas Chlorine gains an electron.
Hope it helps.
When the dry ingredients of a cake are combined, what is the result?
atom
compound
mixture
element
Answers
When the dry ingredients of a cake are combined, the result is a mixture. Option 3.
What are mixtures?In chemistry, mixtures are substances that are obtained by mixing two or more chemically different substances together with each substance maintaining its chemical identity. In other words, the components of a mixture are still chemically unique and can be separated by physical means.
Mixtures can be homogeneous or heterogeneous. Homogenous mixtures are mixtures in which the components are uniformly dispersed throughout the entire mixture. For heterogeneous mixtures, the components are not uniform throughout the mixture.
Thus, when the dry ingredients of a cake, such as flour, sugar, etc., are combined, what we are going to have is a mixture. Whether this mixture would be homogenous or heterogeneous will depend on the level of mixing. Whatever the case may be, the components can still be separated by physical means.
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if i were to scale up an atom until it were the size of a sports arena, the space filled by the positive charges inside the atom (according to the work of ernest rutherford early in this century) would be: a. as big as the entire stadium (and very thinly spread out) b. as big as the space filled by all the negative charges (that's why the atom is neutral) c. an extremely thin layer spread completely around the outer walls of the stadium d. very small (perhaps the size of a soccer ball) and in the middle e. this question cannot be answered (even roughly) without knowing how many electrons the atom has
Answers
The correct answer is d. very small perhaps the size of a soccer ball and in the middle.
Ernest Rutherford's work early in the 20th century showed that the positive charges in an atom are concentrated in the nucleus, which is extremely small compared to the size of the entire atom. If we were to scale up an atom to the size of a sports arena, the space filled by the positive charges in the nucleus would be much smaller than the entire stadium, perhaps the size of a soccer ball, and located in the center of the stadium. The electrons occupy the space around the nucleus and fill most of the volume of the atom.
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Which of the following statements are correct?
1. Metals generally lose electrons to become cations.
2. Nonmetals generally gain electrons to become anions.
3. Group 2A metals form ions with a 2+ charge.
3 only
2 only
1 only
1.2. and 3
Answers
Answer:
1,2, and 3
Explanation:
I hope this answered your question!
PLEASE HELP TIMED!!!!
Answers
Answer:
STP: 273K and 760 mm of mercury.
Use the Boyle's law, i.e., PV = P'V' and get the answer.
how many kilograms of aluminum metal can be produced by the electrolysis of al2o3 using a current of 125.0 amps for 18.0 hours?
Answers
0.755kg of aluminum metal can be produced by the electrolysis of Al2O3 using a current of 125.0 amps for 18.0 hours.
Firstly, we go to write the balanced reaction:
Al2O3 -------- Al (+3) + O(-2)
The reduction for the Al(+3) ions will be given as
Al(+3) + 3e- -------- Al
From. this we noticed that, 3 faraday left for each mol of Aluminum.
Now, convertion of faraday into coulombs
3 Faraday × (96485 coulombs) / 1 faraday =
289,455 coulombs
Now, we can apply faraday's law:
m = M × I × t/ (e × 96485)
where
m = mass in grams
t = time in seconds = 18 × 60 × 60 = 64,800 s
e- = number of electrons per mol = 3
M = molar mass = 27
I = current = 125
By substituting all the values, we get
m = 27 × 64800 × 125/ 289,455
= 755.55 g. = 0.755kg
Thus, we concluded that 0.755kg of aluminum metal can be produced by the electrolysis of Al2O3 using a current of 125.0 amps for 18.0 hours.
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Rank the types of radiation in order of their energy, from least to greatest.
left to right on spectrum
less wavelength/ greatest energy
purple (gama rays)
blue (X-rays)
blue/green (ultraviolet)
rainbow (visible light)
yellow (infrared)
orange (mircrowave)
red (FM-Radio-AM)
longest wave length/ lower energy
Answers
This ranking is based on the electromagnetic spectrum, which describes the different types of radiation in order of their wavelength and frequency. As the wavelength decreases, the frequency and energy of the radiation increases. Gamma rays have the highest energy and shortest wavelength, while radio waves have the lowest energy and longest wavelength.
What is Radiation?
Radiation refers to the energy that travels through space or matter in the form of electromagnetic waves or particles. There are several types of radiation, including electromagnetic radiation, such as radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays, as well as particle radiation.
Electromagnetic radiation is characterized by its wavelength and frequency, which determines its energy and the type of radiation.
Here is the correct ranking of the types of radiation in order of their energy, from least to greatest:
Red (FM-Radio-AM): Longest wavelength/lowest energy
Orange (Microwave)
Yellow (Infrared)
Rainbow (Visible light)
Blue/green (Ultraviolet)
Blue (X-rays)
Purple (Gamma rays): Shortest wavelength/greatest energy
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5.) If 6 moles of Oxygen Gas (O2) are produced in the reaction below, how
many grams of Potassium Chloride (KCI) are also produced? *
2 KCIO3 → 2 KCI + 3 O2
Answers
Answer:
im really sorry but i dont no☹
when a strong acid is titrated with a strong base, the ph at the equivalence point is
Answers
When a strong acid is titrated with a strong base, the pH at the equivalence point is 7.
This is because a strong acid completely dissociates into its ions in solution, releasing an equivalent amount of H+ ions into solution. Similarly, a strong base dissociates completely into its ions, releasing OH- ions into solution. The reaction between H+ and OH- ions produces water, which has a neutral pH of 7. At the equivalence point, the moles of H+ ions in the acid solution equals the moles of OH- ions in the base solution, resulting in a neutral solution with a pH of 7.
Any additional base added to the solution beyond the equivalence point will result in a basic solution with a pH greater than 7.
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Which compound is composed of calcium and chlorine?
CO
CaCl2
CaF2
CsF
Answers
The compound that is composed of calcium and chlorine is CaCl₂
How do I determine the compound that contains calcium and chlorine?To know which of the compound that contains calcium and chlorine, we must know the symbol of calcium and chlorine. This is shown below:
Calcium is a group 2 element with atomic number of 20 and a symbol of Ca
Chlorine is a group 17 element with atomic number of 17 and a symbol of Cl
With the above information, we can determine the compound that contains calcium and chlorine as follow:
The compound that contains calcium and chlorine must have Ca and Cl in it.
Thus, the compound that contains calcium and chlorine is CaCl₂
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The main ingredient of a particular cough medicine, that can be in syrup or tablet form, is an organic compound with the name of dextromethorphan. The formula for this compound is C18H25NO. Your mom instructs you to go to the pharmacy to buy cough medicine and to ensure that you get 3.99 x 1021 molecules of dextromethorphan. However, at the pharmacy, the label of the package only states the amount of the drug in grams. If there are 12 tablets in the package and 0.05 grams of dextromethorphan in each tablet, how many packages of the cough medicine would you need to buy?
Answers
Answer:
25 grams of sugar
Explanation:
SOMEONE HELP ASAPP...
Answers
AnswU GOT THIS!!!!!!!!!!!!!
Explanation:
Answer:
protein??
Explanation:
im not sure, but I could be wrong!!
In this equation, 2mg + o2 arrow 2mgo, what is the subscript of the oxygen molecule?
Answers
The subscript of the oxygen molecule in the equation 2Mg + O2 → 2MgO is 2.
This means that two oxygen molecules (O2) are involved in the reaction, and they combine with two magnesium atoms (2Mg) to form two magnesium oxide molecules (2MgO). The subscript "2" in front of MgO indicates that two MgO molecules are formed as a result of the reaction. The equation 2Mg + O2 → 2MgO represents a combustion reaction in which magnesium (Mg) reacts with oxygen (O2) to produce magnesium oxide (MgO). This is an example of an exothermic reaction, which releases energy in the form of heat and light.
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CaC0³ scientific name is?
Answers
Answer:
CaC0³ scientific name is Calcium carbonate
Explanation:
Have a great summer :)
A buffer solution is prepared by adding NH4CIto a solution of NH3 (ammonia).NH3(aq) + H2O(0) = NH4+ (aq) + OH-(aq)What happens if HCl is added?
Answers
ANSWER
The addition of HCl will shift to reactants
EXPLANATION
When some strong acid is added to a buffer, the equilibrium is shifted to the left, and the hydrogen ion concentration increases by less than expected for the amount of strong acid added. Buffer solution helps in adjusting the pH of a substance.
Since the HCl is a strong acid, it will shift to the left (reactant sides)
Choose the paramagnetic species from below.
Ar
O
Ti4+
All of the above are paramagnetic.
None of the above are paramagnetic.
Answers
The correct answer is option (c) Ti4+.
The species which are attracted to a magnetic field are known as paramagnetic species. If we talk about the given options, then we can see that there are only 3 species that are given. Out of these three, only Ti4+ is paramagnetic. How can we determine whether a species is paramagnetic or not? The species which contain unpaired electrons are paramagnetic in nature. If there are all paired electrons, then the species are diamagnetic. If we talk about Ti4+, then it contains 2 unpaired electrons, which makes it paramagnetic. This is the reason why the correct answer is Ti4+.In Ar, all the electrons are paired, which makes it diamagnetic. In O, there are 2 unpaired electrons, which makes it paramagnetic. How can we determine whether a species is paramagnetic or not? The species which contain unpaired electrons are paramagnetic in nature. If there are all paired electrons, then the species are diamagnetic.
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I am a little confused
