Provide an argument for why Mo atoms in the gas phase have the electron configuration [kr]5s4d instead of [Kr]5s24d4.
Answers
The reason why Mo atoms in the gas phase have the electron configuration [kr]5s4d instead of [Kr]5s24d4 can be explained by the concept of energy levels and subshells.
The 4d subshell has a slightly higher energy level than the 5s subshell, which means that the 4d subshell is filled before the 5s subshell.
This is known as the Aufbau principle, which states that electrons will fill the lowest energy level available before filling higher energy levels.
Therefore, when Mo atoms are in the gas phase, the 5s subshell is partially filled with one electron, while the 4d subshell is also partially filled with five electrons.
This configuration is more stable than the [Kr]5s24d4 configuration because it follows the Aufbau principle and fills the lower energy level first.
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Related Questions
Please help I'm struggling
What type of attractive force exists when two atoms form a temporary dipole or charge because of the movement of electrons?
Answers
Answer:
The correct option is A
Explanation:
The forces of attraction among the molecules or atoms of a substance are called inter molecular forces.
When two atoms gain temporary dipole and become polar for an instant the inter molecular forces of attraction between then are known as London dispersion forces.
London Dispersion Forces:
It is a type of inter molecular force that occurs when the electrons in two adjacent atoms are displaced in such a way that the atoms get some temporary dipoles, they attract each other through London dispersion forces. These inter molecular forces usually occur between non polar substances.
Answer: B intramolecular force
Explanation:
there are three primary gases in the atmosphere n2 makes up 78%, o2 is 21%, and ar is ~1%. (we're ignoring the thousands of trace gases.) a sample of atmosphere is placed in a flask at stp. what is the partial pressure of o2 in the flask?
Answers
The flask's partial oxygen pressure is 0.78 atm. 1.72 x 102 mol, -0.21 x atm, and -6.38 x 102 mol
What is the atmosphere of Earth?Vision Learning, a website for learning, claims The composition of the Earth's atmosphere is roughly 78% nitrogen, 21% oxygen, 0.93% argon, 0.04% carbon dioxide, and trace amounts of neon, helium, methane, krypton, ozone, hydrogen, and water vapor.
How do you define atmosphere in a sentence?As it made contact with Earth's atmosphere, the spacecraft broke apart. 2 They were unhealthyly cramped in their living conditions. 3 The ambiance there strikes me as being somewhat impersonal. 4 The environment in towns and cities is contaminated by these pollutants.
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CHEMCIAL TECHNOLOGY QUICK CHECK which activity would be considered resource extraction? eating beef raising cattle eating deer hunting deer WILL GIVE BRAINIEST TO WHOEVER GOVES ME THE WHOLE QUICK CHECK
Answers
Hunting deer can be considered resource extraction. It involves the loss of biodiversity.
What does resource extraction mean?Resource extraction refers to the usage of fundamental resources (biodiversity resources) from the environment.
Hunting deer is considered a resource extraction activity because this activity involves the loss of biodiversity.
Biodiversity is a fundamental issue for the health (homeostasis state) of the whole ecosystem.
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Answer:
Hunting dear, fewer trees to a decrease in earths carbon dioxide absorption, advancements in medicine, Hydrogen is a component of water , removing acid causing oxides from factory smoke
Explanation:
Yw please mark brainliest<33
the compound calcium iodide is a strong electrolyte. write the reaction when solid calcium iodide is put into water.
Answers
(Sodium iodide) NaI (s) → (Sodium) Na⁺(aq) + (iodide) I⁻(aq)
The chemical formula of sodium iodide is NaI. When NaI is dissolved in water, it dissociates into sodium ions (Na⁺) and iodide ions (I⁻). One mol of NaI gives 1 mole of Na⁺ ions and 1 mole of I⁻ ions.
Therefore, the chemical equation for the dissociation is the following:
NaI(s) → Na⁺(aq) + I⁻(aq)
What is sodium?
Sodium is a reactive, soft metal with a low melting point and most vital of all alkaline metals from the commercial viewpoint. It reacts speedily with water, snow, and ice to make sodium hydroxide. Sodium chloride is received by the reaction of sodium with chlorine. It is also consumed as a salt in fertilizers.
(Sodium iodide) NaI (s) → (Sodium) Na⁺(aq) + (iodide) I⁻(aq)
The chemical formula of sodium iodide is NaI. When NaI is dissolved in water, it dissociates into sodium ions (Na⁺) and iodide ions (I⁻). One mol of NaI gives 1 mole of Na⁺ ions and 1 mole of I⁻ ions.
Therefore, the chemical equation for the dissociation is the following:
NaI(s) → Na⁺(aq) + I⁻(aq)
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gIVING BRAINLIEST. Practice questions
1 Change the following values to standard form
a boiling point of sodium chloride: 1413 °C
b largest nanoparticles: 0.0 001x 103 m
c number of atoms in 1 mol of water: 1806x1021
Answers
Explanation:
a) 1.4×10³
b) 1.0×10^-7
c)1.8×10^24
If volume stays the same, does mass increase or decrease as density increases?
Answers
Answer: Decreases
Explanation: Hope this helps :)
Answer:
B
Explanation:
it's the second one it's actually easy for me
Humans become part of the carbon cycle when they
A. breathe in carbon dioxide,
B. release carbon as a waste product,
C. produce new carbon compounds in their cells,
Answers
Answer:
Human activities have a tremendous impact on the carbon cycle
Explanation:
Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.
using postulates of kinetic molecular theory, select the statement(s) that correctly describe(s) the assumptions used to define an ideal gas as distinct from a real gas. multiple select question. the actual volume of the gas particles is negligible compared to the container volume. gas particles are separated by relatively large distances. gas particles do not exert attractive or repulsive forces on one another.
Answers
Following are the KMT's five central tenets: The particles in a gas are constantly moving at random speeds, their total volume is tiny, they do not interact with one another physically, and their collisions are entirely elastic.
The kinetic molecular theory has how many postulates?Gases will depart from the ideal gas law when the Kinetic Molecular Theory's five postulates fail, and there are five postulates in total.
What are the eight tenets of the gas kinetic theory?The relationship between a gas particle's average kinetic energy and temperature is direct. The speed at which the gas molecules move rises with temperature.
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what type of reaction is Mg + 2Ag -> mg2 + 2Ag
Answers
Answer:
double replacement ...i think ^^
i hopefully its right
Match the term to its definition.Nonpolar2Composed of two atomsMetallic?A bond with a negativeend and a positive endPolar?A bond in which neitheratom takes more than itsshare of electronsElectronegativity?A type of bond that allowsvalence electrons to movefreely among ionsDiatomic?Determines what type ofbond will form
Answers
Non polar: A bon in which neither atom takes more than its share of electrons
Metallic : A type of bond that allows valence electrons to move freely among its ions
Polar: A bond with a negative end and a positive end
Electronegativity: Determines what type of bond will form
Diatomic: Composed of two atoms
Why are sodium and chlorine the largest dissolved components in ocean water? What is the most abundant dissolved gas in ocean water?
Answers
Sodium (Na) and chlorine (Cl) are the largest dissolved components in ocean water due to the abundance of sodium and chloride ions in the Earth's crust and the continuous input of these elements into the oceans through various processes. Sodium is one of the most common elements in the Earth's crust, and chlorine is widely distributed in rocks, minerals, and salts.
Over millions of years, weathering of rocks, volcanic activity, and erosion release these elements into rivers and ultimately into the oceans. The combination of sodium and chlorine ions results in the formation of sodium chloride, which is commonly known as table salt and contributes to the salinity of seawater.
The most abundant dissolved gas in ocean water is carbon dioxide (CO2). Carbon dioxide dissolves in the surface waters of the ocean through gas exchange with the atmosphere. It plays a crucial role in regulating the pH of seawater and is an essential component of the carbon cycle. Carbon dioxide is involved in various biological and chemical processes in the ocean, including photosynthesis by marine plants and the formation of calcium carbonate shells by marine organisms. Additionally, the increase in atmospheric carbon dioxide due to human activities has led to ocean acidification, which is a significant concern for marine ecosystems.
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Due to the fact that they combine to form the ionic compound sodium chloride (NaCl), also known as salt, sodium (Na) and chlorine (Cl) are the two most abundant dissolved elements in ocean water.
Thus, Salts are among the many dissolved compounds that water from rivers and streams transports into the ocean.
In particular, sodium and chloride ions have accumulated in the ocean throughout time, leading to the high concentration of these elements in seawater. Magnesium, calcium, potassium, and sulphate ions are among the other dissolved substances in ocean water.
Oxygen is the dissolved gas that is most prevalent in ocean water.
Thus, Due to the fact that they combine to form the ionic compound sodium chloride (NaCl), also known as salt, sodium (Na) and chlorine (Cl) are the two most abundant dissolved elements in ocean water.
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if 18.2 ml of 0.800 m hcl solution are needed to neutralize 5.00 ml of a household ammonia solution, what is the molar concentration of the ammonia?
Answers
The molar concentration of ammonia is 2.976M.
Molarity of HCl = number of moles/ volume
Number of moles = Molarity of Hcl * volume
Hence the number of moles of ammonia =\(14.88 * 10^{-3}\)
From question volume of ammonia =\(5 * 10^{-3}\)
Molarity = \(14.88 * 10^{-3}/5 * 10^{-3}\)
Molarity \(=2.976\)
What is meant by molar concentration?
Molar concentration is the most effective way of describing a solute concentration in a solution. Molarity is described as the total number of moles of solute dissolved per liter of solution,i.e., M = mol/L.
How do you calculate the molar concentration?
To calculate the Molar Concentration, we will find the molar concentration by dividing the moles by the liters of water used in the solution.
Thus, the molar concentration of ammonia is 2.976M
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______ are used to produce soft and flexible materials such as vinyl flooring, shower curtains, and some water bottles.
Answers
PVC (Polyvinyl Chloride) polymers are used to produce soft and flexible materials such as vinyl flooring, shower curtains, and some water bottles.
PVC, or Polyvinyl Chloride, polymers are the main component used in the production of soft and flexible materials like vinyl flooring, shower curtains, and certain types of water bottles. PVC is a synthetic plastic polymer that is created through the polymerization of vinyl chloride monomers. This process forms long chains of repeating vinyl chloride units, resulting in a versatile and durable material.
One of the key characteristics of PVC is its flexibility. By adjusting the polymerization process and adding plasticizers, PVC can be made soft and pliable, allowing it to be molded into various shapes and forms. Plasticizers are additives that increase the flexibility and workability of PVC by reducing the intermolecular forces between polymer chains. This enables PVC to be used in applications that require flexibility and elasticity, such as vinyl flooring, shower curtains, and certain water bottles.
Vinyl flooring, for example, is a popular choice for both residential and commercial spaces due to its softness and ability to withstand high traffic. The pliability of PVC allows the flooring material to be easily installed, bent, and shaped to fit different room dimensions. Additionally, the flexibility of PVC enables the material to absorb shocks and reduce noise, providing a comfortable and quiet flooring option.
Shower curtains are another common application of PVC. The flexibility of PVC allows the curtain to be easily opened and closed while providing a waterproof barrier. PVC shower curtains are also resistant to mold and mildew, making them a practical choice for moist environments like bathrooms.
Certain types of water bottles are also made from PVC. These bottles are typically soft and collapsible, making them convenient for carrying and storing liquids. The flexibility of PVC allows the bottle to be easily squeezed, providing a practical solution for on-the-go hydration.
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Which is heavier, calcium or selenium?
Answers
Answer:selenium
Explanation:
Answer: Nether
Explanation: Because if you have one pound of Calcium and one pound of selenium there both the same weight
Can someone answer this question really quick
Where do igneous rocks form?
Select all that apply.
Responses
A. Igneous rocks form on Earth’s surface where magma reaches the surface.Igneous rocks form on Earth’s surface where magma reaches the surface.
B. Igneous rocks form underneath Earth’s surface where magma cools down within the crust.Igneous rocks form underneath Earth’s surface where magma cools down within the crust.
C. Igneous rocks form within Earth’s mantle where magma is typically found.Igneous rocks form within Earth’s mantle where magma is typically found.
D. Igneous rocks form in Earth’s inner core where magma solidifies under heat and pressure.
Answers
The correct responses for where igneous rocks form are B. Igneous rocks form underneath Earth’s surface where magma cools down within the crust, and C.Option b is correct.
Igneous rocks form within Earth’s mantle where magma is typically found.Option A, "Igneous rocks form on Earth’s surface where magma reaches the surface," is incorrect. Rocks formed from magma that reaches the surface are called extrusive or volcanic igneous rocks.
Option D, "Igneous rocks form in Earth’s inner core where magma solidifies under heat and pressure," is also incorrect. The Earth's inner core is composed mainly of solid iron and nickel, and it is not the location where igneous rocks form.
Igneous rocks are formed when molten magma cools and solidifies. This process primarily occurs within the Earth's crust and mantle. Intrusive or plutonic igneous rocks are formed when magma cools slowly beneath the Earth's surface, while extrusive or volcanic igneous rocks are formed when magma reaches the surface and cools quickly.Option b is correct.
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someone pls answer i will in fact give u brainliest
Answers
Answer:
d. Solid
Explanation:
It is frozen to be a glacier
Hope this helps :)
1. . What is the percent composition of Carbon, in, C7H16?
a. 12%
b. 19%
c.68%
d. 84%
Answers
d. 84% is the percent composition of Carbon, in, C₇H₁₆
What does "percent composition" mean?% composition is quite straightforward. You can determine by mass how much of each element is contained in a compound using its percent composition. A chemical compound is created when two or more components are combined.
The hydrocarbon includes 80% carbon, which translates to 80% of the molar mass being made up of carbon. Consequently, the hydrocarbon has four carbon atoms.
The percent composition is calculated by multiplying the total mass or quantity of an element present in a molecule or compound by the molecular mass of the compound.
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What is the hydrogen ion concentration of a solution with ph = 2. 25?.
Answers
two major products result from this reaction draw teh second expected prodcut of the reaction then dtaw a stepwise mechanism that shows the formation of the first proudct shjown:
Answers
The main answer to your question is that two major products are formed from this reaction. The first product is formed through a stepwise mechanism that involves the formation of an intermediate. The second expected product can be drawn by considering the possible rearrangements and products that can result from the reaction.
An explanation of the reaction and its products is that it involves a chemical reaction between two reactants.
The reaction proceeds through a series of steps that involve the formation of an intermediate.
The intermediate then undergoes a series of transformations that result in the formation of the first product.
The second expected product can be drawn by considering the possible rearrangements and products that can result from the reaction.
In summary, the reaction produces two major products, and the first product is formed through a stepwise mechanism that involves the formation of an intermediate. The second expected product can be drawn by considering the possible rearrangements and products that can result from the reaction.
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suppose that na μa changing by δμa = 12 j mol−1 e5a.3(b) suppose that na μa changing by δμa = −15 j mol−1 . = 0.10nb and a small change in composition results in , by how much will μb change?
Answers
3 J/mol μb is a small change in composition results to used δμa = −15 j mol−1 . = 0.10nb in each part chemical potential.
Given that na μa is changing by δμa, we can use the relation between na and nb to find the change in μb. You've mentioned that na = 0.10nb, and we have a small change in composition.
Let's first find the change in nb:
Since na = 0.10nb, we can express the change in nb as δnb = δna/0.10, where δna = 12 J/mol (from part a) and δna = -15 J/mol (from part b).
For part a:
δnb(a) = δna(a)/0.10 = 12 J/mol / 0.10 = 120 J/mol
For part b:
δnb(b) = δna(b)/0.10 = -15 J/mol / 0.10 = -150 J/mol
Now that we have the changes in nb, we can find the changes in μb for each part. Since a small change in composition results in a proportional change in the chemical potential, we can relate the change in μa to the change in μb:
δμb(a) = δnb(a)× μb = 120 J/mol μb
δμb(b) = δnb(b)× μb = -150 J/mol μb
=3 J/mol μb
So, the changes in μb for parts a and b are 120 J/mol μb and -150 J/mol μb, respectively.
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The Kush civilization was influenced by Egyptian civilization because:
A. the Kush controlled most of Egypt's holy sites.
B. the Kush conquered and ruled over much of Egypt.
C. the Kush agreed to use only the Egyptian language.
D. the Kush were forced to work as artisans for Egyptian pharaohs.
Answers
The Kush civilization was influenced by Egyptian civilization because the Kush conquered and ruled over much of Egypt
What kush was influenced by ?
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write the balanced molecular equation for complete neutralization of h2so4 by koh in aqueous solution
Answers
balanced equation for complete neutralization of h2so4 by koh in aqueous solution is 2 KOH ( aq ) + H 2 SO 4 ( aq ) → K 2 SO 4 ( aq ) + 2 H 2 O ( l ) .
Because the chemical equation must obey the law of conservation of mass, balancing the stoichiometric coefficients on the reactants and products sides is referred to as Balancing equation. In an unbalanced equation, there are unequal numbers of each type of atom on the reactant and product sides. The reaction of hydrogen with oxygen to form water is an example. Hydrogen (g) + Oxygen (g) = H 2 O ( l ) Water. Because the law of conservation of mass states that mass cannot be created or destroyed, chemical equations should always be balanced.
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Determine the empirical formula of the compound with the percent composition of 26.6% K, 35.3% Cr and 33.0% O. *
3 points
Answers
Answer:
KCrO₃
Explanation:
26.6% K, 35.3% Cr and 33.0% O
The steps in obtaining the empirical formulae from percentage composition is given as;
Step 1:
Divide the percentage composition by the atomic mass of the elements
K = 26.6 / 39.0983 = 0.6803
Cr = 35.3 / 51.9961 = 0.6789
O = 33.0 / 16 = 2.0625
Step 2:
Divide all though by the smallest number (0.6789)
K = 0.6803 / 0.6789 = 1.002
Cr = 0.6789 / 0.6789 = 1
O = 2.0625 / 0.6789 = 3.038
The Empirical formular is the ratio between the elements. This given as;
KCrO₃
what is the mole fraction of potassium hydroxide, koh, in a solution prepared from 42g of potassium hydroxide and 800.0g of water?
Answers
The mole fraction of potassium hydroxide (KOH) in a solution prepared from 42g of KOH and 800.0g of water is 0.0165.
The mole fraction of potassium hydroxide (KOH) in a solution prepared from 42g of KOH and 800.0g of water can be calculated as follows:
42g of KOH has a molar mass of 56.1g/mol, therefore the number of moles of KOH = 42/56.1 = 0.747mol.
800.0g of water has a molar mass of 18.0g/mol, therefore the number of moles of water = 800.0/18.0 = 44.44mol.
The total number of moles in the solution = 0.747mol + 44.44mol = 45.187mol.
The mole fraction of KOH = 0.747mol/45.187mol = 0.0165.
Therefore, the mole fraction of potassium hydroxide (KOH) in a solution prepared from 42g of KOH and 800.0g of water is 0.0165.
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Name the gases that mostly compose the atmosphere.
O Argon and Carbon Dioxide
O Oxygen and Carbon Dioxide
Oxygen and Nitrogen
Carbon Dioxide and Nitrogen
Answers
Explanation:
Oxygen and Nitrogen. is the correct pair.
If you have copper atoms with a +2 charge and covalently bonded molecules with 1 phosphorus and 4 oxygen atoms, what would be the proper chemical formula of the compound?
Answers
The final chemical formula will be Cu3(PO4)2. The chemical formula for a compound of copper atoms with a +2 charge and covalently bonded molecules with 1 phosphorus and 4 oxygen atoms is Cu3(PO4)
1. The phosphorus oxide group is covalently bonded to form the PO4 molecule, which has a -3 charge as a whole, due to the presence of four oxygen atoms that have a -2 charge. The Cu2+ ions balance the PO43- ions to create a compound with a neutral charge.
There are two PO43- ions in the formula, which means there are eight oxygen atoms and two phosphorus atoms. To make the formula electrically balanced, there must be three copper atoms, each with a +2 charge.
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How is data not actually obtained from the experiment represented in a line graph?
•with a double line
•with a colored line
•with a broken line
•with only dots
Answers
Answer:
with a double line
1 point
Given the unbalanced equation below. When the equation is correctly
balanced what is the coefficient in front of O2?*
Al(s) + O2(g)
O2(g) →_Al2O3(s)
1)6
2. 2
3. 3
4. 4
Answers
Answer:
bbecause it make the answer
The data found below measure the amounts of greenhouse gas emissions from three types of vehicles. The measurements are in tons per year, expressed as CO2 equivalents. Use a 0.025 significance level to test the claim that the different types of vehicle have the same mean amount of greenhouse gas emissions. Based on the results, does the type of vehicle appear to affect the amount of greenhouse gas emissions? Click the icon to view the data. What are the hypotheses for this test? A. H 0
:μ 1
=μ 2
=μ 3
H 1
: At least one of the means is different from the others. B. H 0
: At least one of the means is different from the others. H 1
:μ 1
=μ 2
=μ 3
C. H 0
:μ 1
=μ 2
=μ 3
H 1
:μ 1
=μ 2
=μ 3
D. H 0
:μ 1
=μ 2
=μ 3
H 1
:μ 1
=μ 2
=μ 3
Determine the test statistic. F (Round to two decimal places as needed.)
Answers
Answer: A. H 0 μ1 = μ2 = μ3
Ha μ1 ≠ 2μ ≠ μ3
2. Test Statistics is 95%
3. Critical F-Value is 3.76.
4. P-Value is 2.32.
5. Conclusion Reject the null hypothesis.
6. Type of vehicle does effect the amount of green house gas emissions.
The correct order of the steps of a hypothesis test is given below.
1. Determine the null and alternative hypothesis.
2. Select a sample and compute the critical value F-test for the sample mean.
3. Determine the probability at which you will conclude that the sample outcome is very unlikely.
4. Make a decision about the unknown population.
All steps are performed in the given sequence to test a hypothesis.
The null hypothesis is rejected or accepted on the basis of level of significance. When the p-value is greater than level of significance we fail to reject the null hypothesis and null hypothesis is then accepted. It is not necessary that all null hypothesis will be rejected at 95% level of significance. To determine the criteria for accepting or rejecting a null hypothesis we should also consider p-value.
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Explanation:
how many valence electrons does silicone have?
Answers
Answer:
four valence electrons
Explanation: