How many orbitals do the s , p and d subshells have respectively ?__________
Help ASAP I’ll make you as brainlister
Answers
S subshell has one orbital
P subshell has three orbitals
D subshell has five orbitals
Related Questions
What will most likely happen if you place a piece of metal in a base?
O A. The metal will turn into a salt.
O B. The metal will neutralize the base.
C. The metal will give off a gas.
O D. The metal will not react with the base.
Answers
Answer:D
Explanation:
The metal will not react
5. how can a diene be differentiated from an alkene in this experiment?
Answers
In an experiment, a diene can be differentiated from an alkene by performing a reaction that specifically involves dienes. One such reaction is the Diels-Alder reaction, which is a cycloaddition reaction between a diene and a dienophile (an alkene or alkyne). This reaction is highly specific for dienes and does not occur with simple alkenes.
The Diels-Alder reaction involves the formation of a cyclic compound by the reaction of a diene with a dienophile, resulting in the formation of a new ring system. The reaction proceeds through a concerted mechanism and is typically thermally activated. The reaction is highly regioselective and stereospecific.
To differentiate a diene from an alkene using the Diels-Alder reaction, you can perform the following steps:
1. Choose a dienophile that is known to undergo the Diels-Alder reaction. Common dienophiles include maleic anhydride, acrylates, and fumarates.
2. Prepare a reaction mixture containing the suspected diene and the dienophile. This can be done by dissolving both compounds in an appropriate solvent.
3. Heat the reaction mixture to a suitable temperature. The reaction is typically performed at elevated temperatures, ranging from 80-150°C.
4. Monitor the reaction progress by various techniques such as thin-layer chromatography (TLC) or spectroscopic methods like infrared (IR) or nuclear magnetic resonance (NMR) spectroscopy.
5. If the suspected compound is a diene, it will react with the dienophile via the Diels-Alder reaction, resulting in the formation of a new cyclic compound. This can be confirmed by analyzing the reaction mixture using the techniques mentioned above.
6. If the suspected compound is an alkene, it will not undergo the Diels-Alder reaction with the chosen dienophile, and there will be no formation of a cyclic compound.
By performing the Diels-Alder reaction and observing the formation or lack of formation of a cyclic compound, you can differentiate a diene from an alkene in the experiment.
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What does the scientific method process allow for?
Answers
It allows to test a inference, and analyze data to determine if the inference of the observation was correct.
Use significant digits to express the weight of a 150.0 lb person in kilograms ( 1 lb = 453.6 g)
Answers
Answer:
150.0 = 68.038856
Explanation:
kilograms
A student uses a microscope to observe a single-celled organism that can move. The organism contains a nucleus and many chloroplasts. Based on the observations, the student claims the organism is not a bacterium. Which observations BEST supports the student's claim. * 1 point The organism is unicellular. The organism is able to move. The organism has a nucleus. The organism performs photosynthesis.
Answers
Answer:
The organism has a nucleus
Explanation:
According to this question, a student makes a claim that an observed organism is not a Bacteria. Organisms have been classified into two major domains based on their nucleus. Eukaryotic organisms have a well-defined double membrane nucleus while prokaryotes do not.
The organism being observed in this question posseses a nucleus and many chloroplasts meaning that the organism is most likely an EUKARYOTE. The observations that backs the student claim is that the organism has a nucleus. Bacteria is an example of prokaryotic organisms with no nucleus in their cell.
how many nitrogen atoms should appear on the right side of this equation 2AgNO3+Cu=?
Answers
Answer:
One.
Explanation:
Both sides of the equation need 2 Silver atoms, 1 Nitrogen, 3 Oxygen and 1 Copper to be balanced which is the same as the side of reactants.
a mixture of hydrocarbons contains 34.3% heptane, c7h16, 12.9% nonane, c9h20, and 52.8% octane, c8h18. the mixture is combusted in an excess of oxygen. what mass of co2 is generated from the combustion of 13.0 kg of the mixture?
Answers
The mass of carbon dioxide formed on burning of Octane, heptane and decane is 39.6044 Kg
The total mass of the mixture is 13 kg.
Percentage of heptane, decane and octane, in the mixture is 34.3%, 12.9% and 52.8%.
So,
Mass of heptane in the mixture is,
Mass of heptane = 13 × 34.3%
Mass of heptane = 4459 g.
Molar mass of heptane = 100 grams/mol
Moles of heptane = 44.59 moles.
We know, one mole of heptane produces 7 moles CO₂.
so, 44.59 moles of heptane will produce 312.13 moles of CO₂
Mass of nonane in the mixture is,
Mass of nonane = 13 × 12.9%
Mass of nonane = 1677 g.
Molar mass of nonane = 142 grams/mol
Moles of nonane = 11.81 moles.
We know, one mole of nonane produces 9 moles CO₂.
So, 11.81 moles. will produces 106.29 moles of CO₂.
Mass of octane in the mixture is,
Mass of octane = 13 × 52.8%
Mass of octane = 6864 g
Molar mass of octane = 114 grams/mol
Moles of octane = 60.21 moles.
We know, one mole of octane produces 8 moles CO₂.
So, 60.21 moles of octane will produce 481.68 moles.
So, the total moles of CO₂ produced are 312.13 + 106.29 + 481.68 moles.
The total moles of CO₂ produced are 900.1 moles.
We know,
Mole = formed mass/Molar mass
So,
Moles of CO₂ = 900.1 moles.
Molar mass of CO = 44g/mol
Formed mass of CO₂ = 900.1 moles. x 44 g/mol
Formed mass of CO₂ is 39604.4 grams.
Hence a total of 39.6044 Kg of CO₂ is formed.
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Help please!! Will mark as Brainliest!
Answers
Answer:
The ice platfor is slowly decrecing from 3.5 km to 2.2km over the span of 60 years.
Explanation:
Why would returning chemicals to a reagent bottle introduce contaminants?
Answers
Because the excess chemical compound can be contaminated with other chemical compound and some reaction can be happen thats why returning chemicals to a reagent bottle introduce contaminants.
There is a chance for the chemicals which is taken out from the reagent bottle to be contaminated with other substances. the chemical property of some of these chemicals may change on contact with air. all these factors may affect the quality of further reactions that were supposed to be carried out by these unused reagents
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PLS HELP! ILL MARK BRAINLIEST
Answers
1,6,4 coefficients ensure that there are equal numbers of atoms of each element on both sides of the equation. So correct option is A.
Describe Chemical Equation?A chemical equation is a symbolic representation of a chemical reaction, which shows the reactants, products, and their relative amounts. It is a shorthand way of describing a chemical reaction using chemical symbols and formulas.
A chemical equation consists of two sides, the reactant side and the product side, separated by an arrow, which represents the direction of the reaction. The reactant side lists the starting materials or reactants, while the product side lists the substances that are formed as a result of the reaction.
The balanced chemical equation for the reaction is:
P4O10 + 6 H2O → 4 H3PO4
The correct set of coefficients to balance the equation is:
A. 1,6,4
These coefficients ensure that there are equal numbers of atoms of each element on both sides of the equation.
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Rico is doing an experiment. He makes a solution of calcium carbonate in a beaker of 200 mL of water at room temperature (25 °C). He adds a small amount of lemon juice to the solution and a chemical reaction begins. Rico reduces the temperature of the solution by 10 °C by adding ice. As the solution cools, what will happen to the chemical reaction?
Answers
The question is incomplete, the complete question is;
Rico is doing an experiment. He makes a solution of calcium carbonate in a beaker of 200 mL of water at room temperature (25 °C). He adds a small amount of lemon juice to the solution and a chemical reaction begins. Rico reduces the temperature of the solution by 10 °C by adding ice. As the solution cools, what will happen to the chemical reaction?
A. The chemical reaction will stop suddenly.
B. There will be no change in the rate of the chemical reaction.
C. The chemical reaction will slow as the water cools.
D. The speed of the chemical reaction will increase as the water cools.
Answer:
C. The chemical reaction will slow as the water cools.
Explanation:
The rate of a chemical reaction is dependent on the temperature of the reaction system. This derives directly from the collision theory of chemical reaction.
The higher the temperature of the system, the more frequently the particles collide and the faster the rate of reaction.
As the temperature is decreased, the rate of reaction decreases simultaneously. Therefore, as Rico decreases the temperature from 25 degrees to 10 degrees, the rate of reaction decreases accordingly.
B) How many milliliters of 2.50 M. H2S04 are needed to neutralize 75.0 g of NAOH?C) if 54.8 mL of BaCL2 solution is needed to precipitate all the sulfate in 554 mg sample of NA2S04 (forming BAS04) what is the normality of the solution?D) if 27.5 mL of 0.125 M HCl solution is needed to neutralize a solution of CA(OH)2 how many grams of CA(OH)2 must be in the solution?
Answers
ANSWER
The volume is 2666.38L
EXPLANATION
Given information
The concentration (Molarity ) of H2SO4 is 2.50 M
The mass of NaOH is 75.0g
To find the milliliters of 2.50M of H2SO4, follow the steps below
Step 1: Write a balanced equation for the reaction
\(\text{ H}_2SO_{4(aq)}+\text{ 2NaOH}_{(aq)}\rightarrow\text{ Na}_2SO_4\text{ + 2H}_2O_{(l)}\)From the above-balanced reaction, you will see that 1 mole of the acid reacts with 2 moles of the base to give 1 mole of the salt and 1 mole of water
Step 2: Find the mole of sodium hydroxide using the below formula
\(Mole\text{ = }\frac{\text{ mass}}{\text{ molar mass}}\)Recall that, the molar mass of NaOH is 39.997 g/mol
\(\begin{gathered} Mole\text{ = }\frac{75}{39.997\text{ }} \\ \text{ Mole = 1.875moles} \end{gathered}\)From the calculations, you will see that the mole of NaOH is 1.875 moles
Step 3: Calculate the mole of sulfuric acid using a stoichiometry ratiO
\(\text{ H}_2SO_4\text{ + 2NaOH }\rightarrow\text{ Na}_2SO4\text{ + 2H}_2O\)1 mole of H2SO4 is equivalent to 2 moles of NaOH
Let x represent the number of moles of H2SO4
Mathematically,
\(\begin{gathered} 1\text{ mole of H}_2SO_4\text{ }\rightarrow\text{ 2 moles of Hno3} \\ \text{x moles}\rightarrow\text{ 1.875 moles} \\ Cross\text{ muliply} \\ \text{ 1 }\times\text{ 1.875 2}\times\text{ x} \\ 1875\text{= 2x} \\ Divide\text{ both sides by 2} \\ \frac{1.875}{2}\text{ = }\frac{2x}{2} \\ x\text{ = 0.9376 mol} \end{gathered}\)Hence, the mole of H2SO4 is 0.9376 moles
Step 4: Find the volume of the solution using the below formula
\(\text{n = c }\times\text{ v}\)Where,
n = is the number of moles
C = concentration in molarity
V = Volume of the solution in Liters
\(\begin{gathered} 0.9376\text{ = }\frac{2.50}{V} \\ cross\text{ multiply} \\ 0.9376\times V\text{ = 2.50} \\ Divide\text{ both sides by 0.9376} \\ V\text{ = }\frac{2.50}{0.9375}\text{ = 2.666 L} \\ \\ Convert\text{ ml to l} \\ 2.666\times\text{ 1000 = 2666.38 mL} \end{gathered}\)Which one please help
Answers
Answer:
C
Explanation:
Adding another Li will balance the equation
2LiNO3 + CaBr2 → Ca(NO3)2 + 2LiBr
Which molecule is solid at Room temperature?
Answers
Answer:
you stink at
Explanation:
URGENT HELP
26. A solution of hydrogen peroxide is 23.3% H2O2 by mass and has a density of 1.11
g/cm”. The molarity of the solution is:
a) 7.14 M
b) 0.259 M
c) 7.60 M
d) 7.93 M
e) none of these
Answers
A solution is made by mixing of heptane and of benzene . Calculate the mole fraction of heptane in this solution. Round your answer to significant digits.
Answers
The question is incomplete, the complete question is found in the image attached to this answer.
Answer:
0.3
Explanation:
Molar mass of benzene = 78 g/mol
Molar mass of heptane = 100 g/mol
number of moles of heptane = 59 g/100 g/mol = 0.59 moles
number of moles of benzene = 103 g/78 g/mol = 1.32 moles
Total number of moles = 0.59 + 1.32 = 1.91 moles
Mole fraction of heptane = 0.59/1.91 = 0.31
Using the synopsis of the article, which of the following is a true statement?
Question 1 options:
Scientists determined the Earth has a metallic liquid core and confirmed their theory.
Scientists work independently to form theories about the Earth without sharing data.
Scientists have updated their original models of the Earth’s interior to reflect new discoveries.
Scientists developed an evidence-based model showing the Earth has a solid outer and inner core.
Answers
Answer: Scientists work independently to form theories about the Earth without sharing d
Scientists work independently to form theories about the Earth without sharing data.
What is solar system?Solar system is defined as the grouping of the eight planets and their moons in orbit around the sun, as well as other smaller bodies like comets, asteroids, and meteoroids.
It can also be defined as the Sun's orbiting objects are confined by gravity to one system.
An orbiting collection of planets, meteors, or other celestial bodies is referred to as a star system.
The Sun, an ordinary star, the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto make up our solar system.
Our solar system is referred to as the "solar system" because our Sun is called Sol after the Latin word for Sun, "solis," and because anything related to the Sun is termed "solar."
Thus, scientists work independently to form theories about the Earth without sharing data.
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Define compressibility
Answers
Answer:
Compressibility means: being able to basically squish something easier. Like water, water can be reduced in volume or size under pressure When that water expands, it turns into a gas.
Explanation:
At the edge of the exosphere earths gravity is about ____ what it is on earths surface
Answers
At the edge of the exosphere earths gravity is about halfway to the Moon___
What is exosphere?
Exosphere is the outermost layer of the atmosphere. It extends from the top of the thermosphere to 6,200 miles (10,000 km ) above the earth. In this layer atoms and molecules escape into space and satellites orbit the earth.
characteristics of the exosphere are :
The exobase begins 500 to 1000 kilometers above Earth's surface.The exosphere extends at least 10,000 kilometers above Earth's surface.The exosphere is so thin and of such low density that the molecules and atoms that compose it essentially never collide.Therefore, Exosphere starts at a distance of 311 to 621 miles from the earth's surface and ends approximately at 6200 miles away from the earth's surface.
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Identify the number of core and valence electrons for each atom.
1s22s22p3 core electrons and valence electrons
1s22s22p63s23p5. core electrons and. valence electrons
Answers
Answer:
1. Core electrons = 1s²; Valence electrons = 2s² and 2p³
2. Core electrons = 1s², 2s²,m2p⁶; Valence electrons = 3s² and 3p⁵
Explanation:
The electrons in an atom of an element are generally divided into two groups: the core electrons and the Valence electrons
Valence electrons are those electrons which are located of or found in the outermost shell or highest energy level of an atom. These valence electrons are the one that determine the chemical reactivity of an atom as they can participate in bond formation between atoms of the same element or with atoms of other elements. The valence electrons also, generally determine the group to which an element will belong to.
Core electrons on the other hand, are those electrons which are found within the innermost shell or lowest energy levels of the atom. They are strongly attracted to the nucleus of atom and do not take part in chemical bonding. However, they play the important role of shieldingnthe valence electrons from the positive charge of the nucleus thereby assisting the valence electrons in bond formation.
Is the following chemical equation balanced? 1 C2H6+ 102 - 3 H2O + 2
CO2 *
Answers
Answer:
No
Explanation:
Answer: smallest whole numbers are 2, 7, 4 and 6
Explanation: C2H6 + 3.5 O2. ⇒ 2. CO2 + 3 H2O
Evaluate the following:
a.) If M is a 2 × 2 matrix with det M = −2. What is det((3M)
-1 ) and det(3M-1) ?
b.) If A is a 5 × 5 matrix and det((2A) -1 ) = 1/8.
Find det A.
c.) If A and B are 3 × 3
Answers
a.) If M is a 2 × 2 matrix with det M = −2, and we want to find det((3M)-1) and det(3M-1),
then the formula to use is:
$$\det(cM) = c^n\det(M)$$ where $n$ is the order of matrix $M$.
1. Find det((3M)-1):
$$\begin{aligned}\det((3M)^{-1})&=\dfrac{1}{\det(3M)}\\\\&=\dfrac{1}{3^2\det(M)}\\\\&=\dfrac{1}{9(-2)}\\\\&=-\dfrac{1}{18}\end{aligned}$$
Therefore, det((3M)-1) = -1/18.
2. Find det(3M-1):
$$\begin{aligned}\det(3M-1)&=3^2\det(M-1/3)\\\\&=9\det(M-1/3)\\\\&=9\left|\begin{matrix}a-1/3 & b \\ c & d-1/3\end{matrix}\right|\\\\&=9\left(ad-\dfrac{a}{3}-\dfrac{d}{3}+\dfrac{1}{9}\right)\\\\&=3(3ad-a-d+1/3)\\\\&=9\det(M)-3\det(I)\\\\&=9(-2)-3(1)\\\\&=-21\end{aligned}$$
Therefore, det(3M-1) = -21.
b.) If A is a 5 × 5 matrix and det((2A)-1) = 1/8, then:
$$\begin{aligned}\det(2A)^{-1}&=\dfrac{1}{\det(2A)}\\\\\Rightarrow\dfrac{1}{8}&=\dfrac{1}{2^5\det(A)}\\\\\Rightarrow \det(A)&=2^5(8)\\\\&=256\end{aligned}$$
Therefore, det A = 256.
c.) If A and B are 3 × 3 matrices such that $\det(A) = 150$ and $\det(B) = 3$, then:
1. det(2A) = $2^3\det(A)$ = $2^3\times150$ = 1200
2. det(A + B) $\neq\det(A) + \det(B)$ (property does not hold true for addition)
3. det(AB) = $\det(A)\det(B)$ = $150\times3$ = 450
Therefore, det(2A) = 1200, det(A + B) $\neq$ det(A) + det(B), and det(AB) = 450.
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PLEASE HELPPP ME IN CHEMISTRYYY! What does the hump in the middle of each energy diagram represent?
(endothermic and exothermic diagrams)
Answers
Answer:Activation Energy
Explanation:
100 mL of an NaOH solution is neutralized by 50 mL of a 0.5M HCl solution. What is the morality of the NaOH solution?
Answers
Answer:
0.25M
Explanation:
acording to M1V1/M2V2=n1/n2
Required: a. Compute the acid-test ratio for each of the separate cases above. b. Which company is in the best position to meet short-term obligations? Complete this question by entering your answers
Answers
Among the three companies, Company A has the highest acid-test ratio (2.67), followed by Company B (2.00), and then Company C (1.75). The higher the acid-test ratio, the better the company's ability to meet short-term obligations without relying on inventory sales. Therefore, Company A is in the best position to meet short-term obligations.
To compute the acid-test ratio (also known as the quick ratio) for each company, we'll use the formula:
Acid-Test Ratio = (Current Assets - Inventory) / Current Liabilities
a. Compute the acid-test ratio for each company:
Company A:
Current Assets = $250,000
Inventory = $50,000
Current Liabilities = $75,000
Acid-Test Ratio for Company A = ($250,000 - $50,000) / $75,000
Acid-Test Ratio for Company A = $200,000 / $75,000
Acid-Test Ratio for Company A ≈ 2.67
Company B:
Current Assets = $150,000
Inventory = $30,000
Current Liabilities = $60,000
Acid-Test Ratio for Company B = ($150,000 - $30,000) / $60,000
Acid-Test Ratio for Company B = $120,000 / $60,000
Acid-Test Ratio for Company B = 2.00
Company C:
Current Assets = $300,000
Inventory = $90,000
Current Liabilities = $120,000
Acid-Test Ratio for Company C = ($300,000 - $90,000) / $120,000
Acid-Test Ratio for Company C = $210,000 / $120,000
Acid-Test Ratio for Company C = 1.75
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How does an emerging idea differ from scientific consensus? Which best describes emerging scientific ideas?
Answers
Emerging scientific ideas are new theories or ideas that are gaining attention in the scientific community, but have not yet been fully accepted or confirmed.
Emerging ideas refer to the new and innovative ideas or theories that have yet to gain full scientific acceptance. While a scientific consensus is a view or theory that has been universally accepted and confirmed by multiple experiments or research, an emerging scientific idea is a new and unproven theory or idea that is gaining attention in the scientific community. These emerging ideas may also be referred to as scientific hypotheses. In contrast to scientific consensus, emerging scientific ideas have not yet been subjected to rigorous testing and confirmation.
They are generally proposed to explain new observations or experimental results, which have not yet been fully understood or explained by established scientific theories. Emerging scientific ideas can have the potential to challenge the current scientific consensus. If an emerging scientific idea is found to be valid, it can ultimately lead to the establishment of a new scientific consensus. For example, the emerging scientific idea of the Higgs boson particle led to the discovery of a new field in particle physics, which is now an established scientific consensus.
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ACTIVITY: EXPLORING FACTORS THAT AFFECT EQUILIBRIUM (CHECK ATTACHED IMAGE)
-As the temperature increased, what happened to the [N2O4]?
-Was the formation of reactants or products favored by the addition of heat?
-Which reaction is exothermic?
-If the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct?
Answers
Answer:
As temperature is increased, by Le Chatelier's Principle, in an endothermic reaction (forward direction), the equilibrium will shift to the right, the product side, thus increasing the 2NO2, and decreasing the N2O4, in an attempt to counteract the imposed change to the system. The reverse reaction is exothermic. As you can see in the diagram, when the test tube is placed in the beaker of hot water, the heat added makes the reddish brown colour characteristic of NO2 more concentrated, which indicates the equilibrium shifting to the right.
I'm not sure about the last one since I use joules (J) and kilojoules (kJ), not kcal.
If I have 400 grams of Nitrogen Tribromide, how many moles do I have?
Answers
A student dissolves ethanol (C2H5OH) in distilled water. In another container, he dissolves CaCl2, in distilled water. Will either of the solutions conduct electricity? If so which one?
Plz Help!
Answers
Answer: The CaCl2 solution will conduct electricity.
Answer:
i think that the CaCl2 solution will conduct electricity
Explanation:
im not sure but if im wrong im sorry
heat is evovled during
Answers
Heat is evolved during exothermic reactions. An exothermic reaction is a chemical reaction that produces energy in the form of heat, light, or sound. This means that heat is released into the environment during an exothermic reaction.
In these types of reactions, the reactants' energy is greater than the products'. Because the reaction loses energy, it is exothermic.The most well-known example of an exothermic reaction is a combustion reaction. When you light a match, for example, the heat from the reaction of the match and the oxygen in the air is exothermic.
This produces a flame and gives off heat and light. Other examples include chemical reactions in hand warmers, fireworks, and fuel cells.Exothermic reactions have a negative delta H (ΔH), indicating that energy is released during the reaction. The total energy difference between reactants and products in an exothermic reaction is referred to as the enthalpy change.
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