Answers
The equilibrium constant is written as;
Keq = \([D]^2 [C]^5/[A] [B]^3\)
What is the equilibrium constant?The equilibrium constant's value is influenced by the reaction's chemical make-up and temperature.
The product of the product concentrations, each raised to the power of their stoichiometric coefficient, divided by the product of the reactant concentrations, each raised to the power of their stoichiometric coefficient, is known as the equilibrium constant.
The equilibrium constant is Keq = \([D]^2 [C]^5/[A] [B]^3.\)
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Related Questions
What is in period 6 group 8
Answers
Answer:
Osmium
Explanation:
If you take a look at the attached image of a periodic table below, you will see that the element in the 6th period and 8th group is Osmium. Hope this helps!
Look at the structure of ethane below and answer the following questions:
A. Calculate the electronegativity difference between the C and H atoms using the table below.
B. Where would the partial + and - changes be?
C. Is the ethane molecule more or less polar than water? Why or why not?
D. If the oceans were filled with ethane rather than water how might they be different? (Hint: think about hydrogen bonding)
Answers
The Electronegativity Difference between the C and H atoms in ethane would be 0.35.
The structure of ethane is as follows:A) Electronegativity of Carbon (C) is 2.55, and Hydrogen (H) is 2.20. Electronegativity Difference (ΔEN) = 2.55 - 2.20 = 0.35B) There would be a partial negative charge on the Carbon atom, and there would be a partial positive charge on the Hydrogen atoms.C) The ethane molecule is less polar than water. This is because the electronegativity difference between the Carbon and Hydrogen atoms is low (0.35) in ethane, whereas the difference between the Oxygen and Hydrogen atoms is high (1.4) in water. Due to the high electronegativity difference in water, it creates a dipole moment, making it a polar molecule. Whereas ethane has no dipole moment and is considered a nonpolar molecule.D) If the oceans were filled with ethane instead of water, then there would be no hydrogen bonding. As a result, many of the physical properties of the ocean would be different.
For example, the freezing point of the ocean would be much lower because of the weak intermolecular forces between ethane molecules. Due to the absence of hydrogen bonding, the viscosity of the oceans would be less than that of water, leading to easier movement of organisms.
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Which below represents stored energyGroup of answer choicespotentialkineticneitherboth
Answers
Both
Kinetic energy is the energy stored in a body because of its speed and potential energy is the energy stored because of its position in physic field such us gravitational, electric or magnetic fields
an expression of Avogradros law
Answers
Answer:
The formula for Avagadro's law is V1/n1 = V2/n2, where V = volume and n = amount of gas (in moles).
Explanation:
explain the statement potash alum is a double salt using the chemical formula of alum
Answers
Potash alum, represented by the chemical formula KAl(SO4)2·12H2O, is a double salt because it consists of two different salts, potassium sulfate (K2SO4) and aluminum sulfate (Al2(SO4)3), combined together. It forms a unique crystalline structure with 12 water molecules incorporated in its composition.
Potash alum is a type of alum that is commonly used in dyeing and water purification applications. The chemical formula for alum is KAl(SO4)2·12H2O.
The term "double salt" refers to the fact that the compound is made up of two different types of ions that are combined together.
In the case of potash alum, the two different types of ions are potassium ions (K+) and aluminum ions (Al3+). These two ions are combined together in a 1:1 ratio to form a complex ion, KAl(SO4)2, which is then combined with 12 water molecules to form the final compound, KAl(SO4)2·12H2O.
The term "double salt" is used to describe this type of compound because it contains two different types of cations (positive ions) that are combined together to form a single crystal lattice structure.
The two different cations are held together by ionic bonds, which are relatively strong and help to give the compound its characteristic properties.
Potash alum is a particularly useful compound because it has a number of important properties that make it useful in a variety of applications.
For example, it is highly soluble in water, which makes it a good choice for use in water purification applications.
It is also relatively stable and non-toxic, which makes it safe to use in a variety of different settings.
Finally, it has a number of useful physical properties, such as its ability to form crystals that are highly reflective and have a characteristic octahedral shape.
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What are the large plates that move? O gigantic plates O tectonic plates O volcanic plates O rock plates
Answers
Answer:
Tectonic plates
Explanation:
Tectonic plates are large plates that moves. There are different types of plate motion as a result of mantle convection.
A tectonic plate is better as referred to as the lithospheric plate. It is made up of a part of the upper mantle and the overlying crust. Together, they move over the fluid asthenosphere below. The mantle below drives the lithosphere above.
PLEASEEE HELP ?!?!?!
which of the following processes provide evidence of the particulate nature of matter
I. Diffusion
II. Filtration
III. Osmosis
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
Answers
Answer:
B
Explanation:
I think the answer is Diffusion and Osmosis
The processes that provide evidence of the particulate nature of matter would be diffusion and osmosis.
Matter is defined as anything with mass/weight and able to occupy space. Matters could be molecules of solid, liquid, or gases. The molecules of each category of matter have their specific characteristics.Molecules of liquids and gases are able to diffuse. Diffusion is defined as the movement of molecules from the region of high concentration to the region of low concentration. Molecules of solids in the dissolved form are also able to diffuse. Water molecules are also able to move from the region of high to the region of low water potentials by osmosis in the presence of a semi-permeable membrane.Thus, both diffusion and osmosis back up the particulate nature of matter.
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What type of bonding does Ir and Hg have?
Answers
Iridium forms metallic bonds, while mercury exhibits a combination of metallic and covalent bonding. These covalent interactions give rise to the low boiling point and weak intermolecular forces in liquid mercury.
Iridium (Ir) and mercury (Hg) exhibit different types of bonding based on their electronic configurations and properties.
Iridium is a transition metal belonging to Group 9 of the periodic table. It has a partially filled d-orbital in its atomic structure, which allows it to form metallic bonds. Metallic bonding occurs when the outer electrons of metal atoms are delocalized and form a "sea" of electrons that are free to move throughout the crystal lattice. This results in the characteristic properties of metals, such as high electrical and thermal conductivity, malleability, and ductility. Iridium forms metallic bonds with other iridium atoms, contributing to its solid, dense, and lustrous nature.
Mercury, on the other hand, is a unique element. It is a transition metal, but it exhibits characteristics of both metallic and covalent bonding. At room temperature, mercury exists as a liquid, which is highly unusual for a metal. This is because mercury atoms have a weak interatomic interaction, known as metallic bonding, similar to other metals. However, due to the presence of unpaired electrons in its 6s orbital, mercury can also form weak covalent bonds. These covalent interactions give rise to the low boiling point and weak intermolecular forces in liquid mercury.
In summary, iridium forms metallic bonds, while mercury exhibits a combination of metallic and covalent bonding.
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According to the electron configuration, which atom will be the most reactive?
1s^2 2s^2
1s^2 2s^2 2p^6 3s^2
1s^2 2s^2 2p^6 3s^2 3p^6
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2
Answers
Answer:
The fourth atom.
Explanation:
Number of valence electrons in each of the four atoms:
First atom: two (\(2\, s^{2}\).)Second atom: two (\(3\, s^{2}\).)Third atom: eight (\(3\, s^{2}\; 3\, p^{6}\).)Fourth atom: two (\(4\, s^{2}\).)Without referring to a periodic table, the first, second, and fourth atoms would all belong to the alkali-earth metal elements. The third atom would belong to a noble gas element. (The four choices are beryllium, magnesium, argon, and calcium, respectively.)
Noble gas elements are highly stable. Thus, the third atom (argon) would be the least reactive among all four choices.
On the other hand, alkali-earth metals are reactive since they tend to lose their valence electrons. The reactivity of an alkali-earth atom depends on its ionization energy (the energy required to take a valence electron away from the atom.)
Since these atoms are in the same group, ionization energy would be smaller for atoms with a larger radius. In a given group, atoms with more filled electron shells would have a larger radius.
The first atom has two filled main shells, the second has three, whereas the fourth has four.
Thus, among the three alkali-earth metals in the choices:
\(\begin{aligned}&\text{Number of filled electron shells:} \\ & a < b < d\end{aligned}\).
\(\begin{aligned}&\text{Atomic radius:} \\ & a < b < d\end{aligned}\).
\(\begin{aligned}&\text{Ionization energy:} \\ & a > b > d\end{aligned}\).
\(\begin{aligned}&\text{Reactivity:} \\ & a < b < d\end{aligned}\).
The third choice (a noble gas) is the least reactive among the four choices:
\(\begin{aligned}&\text{Reactivity:} \\ & c < a < b < d\end{aligned}\).
Overall, the fourth choice would be the most reactive among the four choices.
How do you solve the decomposition of aluminum oxide?
Answers
Aluminum Oxide decomposes to Aluminum metal and Oxygen gas.
- First, write down each compound:
\(Al_2O_3\longrightarrow Al+O_2\)- Second, write the number of moles of each compound, so that we have the same amount of reactants as products. Here, it is important not to change the subscript of compound elements.
For example, let's start by adding a number 2 in front of the aluminum metal to balance:
\(Al_2O_3\text{ }\rightarrow2Al+O_2\)So far, the amount of aluminum has been balanced but the amount of oxygen is unbalanced, so let's add a number 3 for the oxygen gas.
\(Al_2O_3\text{ }\rightarrow2Al+3O_2\text{ }\)Now, to have the same amount of moles of oxygen on both sides, let's put a number 2 in the aluminum oxide:
\(2Al_2O_3\text{ }\rightarrow2Al+3O_2\)Here, the amount of aluminum moles is unbalanced, so we add a number 4 for the aluminum metal to balance:
\(2Al_2O_3\text{ }\rightarrow4Al+3O_2\)- This is the final balanced equation of decomposition of aluminum oxide:
\(\begin{gathered} 2Al_2O_3\text{ }\rightarrow4Al+3O_2 \\ \end{gathered}\)calculate the mass of nickel metal which will react with 25mL of 0.15mol/L (
hydrochloric acid to produce nickel (II) chloride. 0.110625g
Answers
Answer:
0.110625 g of Ni
Explanation:
The first step in solving this problem is to put down the accurate chemical reaction equation.
Ni(s) + 2HCl(aq) ---> NiCl2(aq) + H2(g)
Secondly, we obtain the amount of HCl that reacted from the information provided.
Volume of HCl (V)= 25 ml
Concentration of HCl (C)= 0.15 mol/L
Then, to find the number of moles of HCl (n);
n= CV
Substitution values
n= 25/1000 × 0.15
n= 3.75 ×10^-3 moles
Mass of 3.75 ×10^-3 moles of HCl = number of moles × molar mass
Molar mass of HCl= 36.5 gmol-1
Therefore;
Mass of HCl = 3.75 ×10^-3 moles × 36.5 gmol-1
Mass of HCl= 0.136875 g of HCl
Thirdly we determine the mass of Ni reacted;
If 1 mole of Ni reacted with 2 moles of HCl according to the reaction equation
Then x moles of Ni reacts with 3.75 ×10^-3 moles of HCl
x= 1 × 3.75 ×10^-3 moles/ 2
x= 1.875 × 10^-3 moles of Ni
Mass of Ni= 1.875 × 10^-3 moles of Ni × 59 gmol-1
Mass of Ni= 0.110625 g of Ni
A complete reaction indicated by the chemical equation below produces 79.0 g of sulfur. Estimate the number of hydrogen atoms found in the amount of water that forms as a second product in this reaction.
2 H2S(g) + SO2(g) → 3 S(s) + 2 H2O(l)
a. 1.98 × 10^24 atoms
b. 4.80 × 10^23 atoms
c. 6.40 × 10^25 atoms
d. 1.02 × 10^26 atoms
e. 3.00 × 10^24 atoms
Answers
Answer: A, 1.98x10^24 atoms of H
Explanation: 39.0 g of sulfur = (79.0g/32.1 g/mole) = 2.46 moles S
The balanced equation promises we'll get 2 moles H2O for every 3 moles ofS, a molar ratio of (2 moles H2O)/(3 moles S)
(2.46 moles S)*[(2 moles H2O)/(3 moles S)] = 1.64 moles H2O
(1.64 moles H2O)*(6.02x10^23 molecules H2)/mole H2O)*(2 H atoms/H2O molecule) = 1.97x10^24 atoms of H
How many ways can you recall to synthesize
Answers
there are an infinite number of ways to synthesize an answer to a question, including the following:
Summarize the key points in a concise manner.
Provide a detailed explanation of the topic.
Use examples or analogies to illustrate the concept.
Break down the answer into smaller, more digestible pieces.
Address potential counterarguments or alternative perspectives.
Incorporate relevant statistics or data to support the answer.
Compare and contrast different aspects of the topic.
Provide historical context or a timeline of events.
Use a storytelling approach to engage the reader.
Use a Q&A format to organize the information.
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Some 2-methyl-2-butene may beproduced in the reaction as a by-product. Give the mechanism forits production.
2-methyl-2-
butanol to form2-methyl-2-butene.
2-methyl-2-
butanol to form 2-methyl-2-butene.
Answers
Two substituents are taken out of the reactant molecule in an elimination reaction to create the product.
In a one- or two-step method, two substituents are eliminated from a molecule in an organic reaction known as an elimination reaction. Atoms are eliminated as molecules and compounds during an elimination reaction. Two substituents are taken out of the reactant molecule in an elimination reaction to create the product. A metal, an acid, or a base typically catalyze elimination. E1 and E2 reactions are the two primary categories of elimination processes in organic chemistry. Both E1 and E2 processes are also known as alcohol elimination reactions and alkyl halide elimination reactions, respectively. Any organic chemical reaction known as an elimination reaction in which two atoms and groups of atoms are eliminated.
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How do I Determine the concentration of each of the individual ions in a 0.800 M (NH4)2S solution
Answers
Answer:
Explanation:
There are 2 NH4 in the equation therefore just multiply the molarity of the total solution by 2. Aaaaaaaaaaaaaaaaaaaaaaaaaaaand listen to "She Blinded Me With Science" by Thomas Dolby! ;)
what is the difference between the coarse adjustment knob and the fine adjustment knob?
Answers
Answer:
COARSE ADJUSTMENT KNOB — A rapid control which allows for quick focusing by moving the objective lens or stage up and down. ... FINE ADJUSTMENT KNOB — A slow but precise control used to fine focus the image when viewing at the higher magnifications. 6.
Coarse adjustment, using the coarse adjustment knobs, raises and lowers the stage more rapidly. Fine adjustment knobs are the smaller knobs and are also used to raise and lower the stage but more slowly and in a more controlled manner under higher magnifications.
What mass of NaCl is needed to produce a 26.4 mol/L with a 1.7 L volume?
Answers
we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.
To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.
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What is the correct equilibrium constant expression for the following reaction? 3A2 = 2B3 when the reaction started with the initial concentrations of A2 = 3 M and B3 = 2 M and continued until the equilibrium concentrations of A2 = 2.5 M and B3 = 2.5 M
Answers
Answer:
Kc = [B₃]²/[A₂]³ = 0.40
Explanation:
3A₂ ⇄ 2B₃
Given at equilibrium => [A₂] =2.5 and [B₃] = 2.5
Kc = [B₃]²/[A₂]³ = (2.5)²/(2.5)³ = (2.5)⁻¹ = 0.40
Law of Universal Gravitation (what factors affect gravity and how?)
Answers
Explanation:
Hey there!
According to the law of gravitation, the factors that affects the gravity are:
Mass of the heavenly bodies.Distance from the centre of the body to next body.Mass of heavenly bodies:The mass of heavenly bodies affect the gravity. We know that gravity is directly proportional to the mass of heavenly bodies. so, when the mass is more there is more gravity and where there is less mass there is less gravity.
Distance from the centre of the body to next body: It is one of the factor to influence gravity. When there is more distance there is less gravity and where there is distance more force is there. Is means gravity is inversely proportional to the distance between the bodies.
Hope it helps...
What changes sodium pellets to liquid
Answers
Answer:
when placed in water, a sodium pellet catches on fire as hydrogen gas is liberated and sodium hydroxide forms. chemical change = fire is a sign of chemical reaction.
Explanation:
When placed in water the sodium pellets catch the fire and liberate the hydrogen gas. On mixing with water solid sodium forms a colorless basic solution.
What are the properties of sodium?Sodium is a soft metal. It is a very reactive element with a low melting point. Sodium reacts very quickly with water, snow, and ice to produce sodium hydroxide and hydrogen. It is an alkali metal and the sixth most abundant metal on earth. It has a silvery white color.
It has a strong metallic luster. On reacting with oxygen it produces sodium oxide which on reacting with the water produces sodium hydroxide.
It is used to improve the structure of certain alloys and soaps. It is also used in the purification of metals. Sodium is also present in sodium chloride, an important compound found in the environment.
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Is energy absorbed or released during cellular respiration?
Absorbed
Released
Answers
Answer:
Released
Explanation:
they convert into a form of energy that can be used by cells
assuming nitrogen behaves like an ideal gas, what volume would 14.0 g of nitrogen gas (N2) occupy at STP? the gas constant is 0.0821 Lxatm/kxmol
Answers
Answer:
V = 22.41 L
Explanation:
Given data:
Mass of nitrogen = 14.0 g
Volume of gas at STP = ?
Gas constant = 0.0821 atm.L/mol.K
Solution:
Number of moles of gas:
Number of moles = mass/molar mass
Number of moles= 14 g/ 14 g/mol
Number of moles = 1 mol
Volume of gas:
PV = nRT
1 atm × V = 1 mol × 0.0821 atm.L/mol.K × 273 K
V = 22.41 atm.L / 1 atm
V = 22.41 L
QUESTIONS
71. The temperature scale used in everyday life in most of
the world except the United States is the
scale.
Answers
Which physical method can be used for obtaining a sample of salt from a small beaker of salt water?
boiling
freezing
chromatography
sorting
Answers
Answer:
a. boiling
Explanation:
This state of matter is characterized by atoms that are moving rapidly, spread apart, and unorganized and that will take the shape of the container.
a. gas
b.liquid
c.plasma
d.solid
Answers
The state of matter that is characterized by atoms that are moving rapidly, spread apart, and unorganized and that will take the shape of the container is gas; option A
What is matter?Matter is the material substance from which the universe is made from,
Matter exists in four different states:
gasliquidplasmasolidEach of the four states of matter possess unique properties that differentiate them one from another.
Generally however, the properties of shape and volume is as follows:
Gases have no definite volume or shape. They rapidly fill up the volume of their containers.
Liquids have definite volume but no definite shape.
Solids have definite volume and shape.
In conclusion, matter exists in different states which all have unique properties.
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Please help me with this!
Answers
Using the stoichiometry of the reaction, the mass of mercury produced is 51.5 g.
The equation of the reaction is shown properly as;
2HgO(s) ------> 2Hg(s) + O2(g)
Number of moles of HgO = mass/molar mass
Molar mass of HgO = 216.591 g
Number of moles of HgO = 27.7 g/216.591 g/mol = 0.128 moles
From the reaction equation;
2 mols of HgO yields 1 mole of Hg
0.128 moles of HgO yields 2 mols × 0.128 moles /1 mol = 0.256 moles
Hence mass of mercury = 0.256 moles × 201 g/mol = 51.5 g
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Which is for which? Here is the image to my question. Please help god bless.
Answers
Answer:
1 - Gravitational.
2 - Normal
3 - Tension
4 - Frictional
5 - Centripetal
Explanation:
1. If you drop something, gravity pulls it down to the Earth, So falling towards the earth is gravity.
2. Pushing back on another object is normal, Newton's law: Every action has an equal and opposite reaction.
3. When two forces are pulled on opposite sides, the object must stretch which creates tension. Think of a rubber band. If it is pulled more than the object can stretch, it will tear. Tensile strength refers to how much pulling force an object can withstand before it tears.
4. When objects or molecules rub against other objects or molecules they create friction.
5. Last two options go together.
If the molecule could move upward without colliding with other molecules, then how high would it go before coming to rest? Give your answer in kilometers. [Hint: When the molecule comes to rest, the potential energy of the molecule will be m⋅g⋅h, where m is the molecular mass in kilograms, g=9.81m⋅s−2 is the acceleration due to gravity, and h is the height, in meters, above Earth's surface.]
Express your answer to three significant figs,
Note: A nitrogen molecule (N2) having the average kinetic energy at 330 K is released from Earth's surface to travel upward.
Answers
The maximum height at which nitrogen molecule will go before coming to rest is 14 kilometers.
Given:
The nitrogen gas molecule with a temperature of 330 Kelvins is released from Earth's surface to travel upward.
To find:
The maximum height of a nitrogen molecule when released from the Earth's surface before coming to rest.
Solution:
The maximum height attained by nitrogen gas molecule = hThe temperature of nitrogen gas particle = T = 330 KThe average kinetic energy of the gas particles is given by:
\(K.E=\frac{3}{2}K_bT\\\\K.E=\frac{3}{2}\times 1.38\times 10^{-23} J/K\times 330 K\\\\K.E=6.381\times 10^{-21} J\)
The nitrogen molecule at its maximum height will have zero kinetic energy as all the kinetic energy will get converted into potential energy
The potential energy at height h = \(P.E = 6.381\times 10^{-21} J\)Molar mass of nitrogen gas = 28.0134 g/molMass of nitrogen gas molecule = m\(m= \frac{ 28.0134 g/mol}{6.022\times 10^{23} mol^{-1}}=4.652\times 10^{-23} g\\\\1g=0.001kg\\\\m=4.652\times 10^{-23}\times 0.001 kg\\\\=4.652\times 10^{-26} kg\)
The acceleration due to gravity = g = 9.8 m/s^2The maximum height attained by nitrogen gas molecule = hThe potential energy is given by:\(P.E=mgh\)
\(6.381\times 10^{-21} J=4.652\times 10^{-26} kg\times 9.8 m/s^2\times h\\\\h=\frac{6.381\times 10^{-21} J}{4.652\times 10^{-26} kg\times 9.8 m/s^2}\\\\h=13,996.6 m\\\\1 m = 0.001 km\\\\h=13,996.6 m=h=13,996.6\times 0.001 k m\\\\=13.9966 km \approx 14 km\)
The maximum height at which nitrogen molecule will go before coming to rest is 14 kilometers.
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A gas has a pressure of 2.70 atm at 50.0 °C. What is the pressure at standard temperature (0°C)?
Answers
Answer:
2.282 atm
P1V1/T1 = P2V2/T2
2.70atm / (50+273) = X/ 273
make x subject of formula
:. X = 2.28 atm
or 2.28 * 1.01 *10⁵ N/m²
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Answers
Answer:
The answer is definitely D
Explanation: