the following do not represent valid ground-state electron configurations for an atom either because they violate the pauli exclusion principle or because orbitals are not filled in order of increasing energy. indicate which of these two principles is violated in each example or whether both or neither are violated.

Answers

Answer 1

An atom's nucleus is surrounded by electrons and protons and neutrons, each with a unique energy level. The Pauli exclusion principle shows how to fill orbitals with electrons in the proper order.

What is Pauli's law of exclusion?

Pauli's exclusion principle is a fundamental principle of quantum mechanics that states that no two fermions can occupy the same quantum state simultaneously. Fermions are a class of subatomic particles that include electrons, protons, and neutrons, and are distinguished by their half-integer spin.

The exclusion principle is named after the Austrian physicist Wolfgang Pauli, who formulated it in 1925. The principle is based on the wave nature of matter and the fact that fermions are described by wave functions that obey the Schrödinger equation.

Energy order of orbital

1s<2s<2p<3s<3p<4s<3d<4p<5s<4d<5p<6s<4f<5d

An atom's nucleus is its main structural component. It is surrounded by electrons and has protons and neutrons inside. These electrons all share the same mass and charge, though. An atom's electrons each have a unique energy level. The positively charged nucleus's strongest attractive force is felt by the electrons nearest to it, which have the lowest energy. Higher energy electrons are located farther away.

The Pauli exclusion principle demonstrates how to fill orbitals with electrons in the proper order.

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Related Questions


How many moles are in 15.89 grams of CH4?

Answers

Moles, Molar Mass and Mass

We must apply the following equation:

[tex]n=\dfrac{m}{M}[/tex]

n = molesm = massM = molar mass

Solving the Question

We're given:

m = 15.89 gM = sum of C + H4 = 16.04 (taken from Chemspider)

Apply the equation:

[tex]n=\dfrac{m}{M}[/tex]

[tex]n=\dfrac{15.89}{16.04}[/tex]

[tex]n = 0.9906\hspace{4}mol[/tex]

Answer

0.9906 mol

Calculate the pressure, in atmospheres, exerted by 2.50 L HF containing 1.35 mol at
320.0 K.

Answers

The pressure exerted by a gas can be calculated using the ideal gas law, which states that PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is the temperature in kelvins.

Plugging in the given values, we get:

P = (nRT) / V

P = (1.35 mol * 8.31 J/mol*K * 320.0 K) / (2.50 L * 10^-3 m^3)

P = (4460.8 J) / (0.0025 m^3)

P = 17843.2 Pa

To convert from pascals to atmospheres, we divide by 101325 Pa/atm:

P = 17843.2 Pa / 101325 Pa/atm

P = 0.176 atm

So, the pressure exerted by 2.50 L of HF containing 1.35 mol at 320.0 K is approximately 0.176 atm.

why is it important to drop a ball from the same height three times why were the numbers slightly different

Answers

Answer:

It is important to drop a ball from the same height multiple times to test and validate a theory or hypothesis. By doing this, one can observe and measure the consistency of the results and determine the average or most common outcome. The numbers may be slightly different due to small variations in the experiment such as air resistance, the angle at which the ball was dropped, or variations in the measurement tools used to record the data. By doing multiple trials and calculating an average, the effects of these variations can be minimized and a more accurate result can be obtained.

Explanation:

Dropping a ball from the same height three times is important in an experiment to calculate the average or mean value of the times it takes the ball to fall from the height to the ground. By repeating the experiment multiple times, we can minimize the effect of random errors and get a more accurate result.

However, even when dropping the ball from the same height three times, the recorded times may be slightly different due to several reasons. Some of these reasons could be variations in the initial release height of the ball, differences in the air resistance experienced by the ball during its fall, and slight variations in the reaction time of the person measuring the time. These variations can result in slightly different measured times, which can be accounted for by calculating the average value.

The air pressure in a tank is measured using an inclined manometer whose arm is inclined 45 degree from the horizontal line. the densities of the air and water are 1.225 kg/m3 and 1000 kg/m^3, respectively. Determine the gauge pressure of air in the tank.

Answers

The gauge pressure of the air in the tank is 101325 Pa - 9.439*L  when The air pressure in a tank is measured using an inclined manometer whose arm is inclined 45 degree.

Let's call the length of the inclined arm of the manometer L. Then, the vertical component of the arm length is given by

[tex]L sin(45) = L/\sqrt2[/tex]

Next, we can use the hydrostatic pressure equation to relate the pressure difference between the two arms of the manometer to the difference in height:

ΔP = ρgh

Where ΔP is the pressure difference, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the difference in height between the two arms of the manometer.

Since the two arms of the manometer are open to the atmosphere, the pressure at the top of the manometer is equal to the atmospheric pressure, which we can assume to be 101325 Pa. Therefore, the gauge pressure of the air in the tank is equal to:

[tex]P_{gauge} = P_{atm} - \triangle P[/tex]

where [tex]P_{atm[/tex] is the atmospheric pressure.

Putting it all together, we get:

ΔP = (ρwater - ρair)gh

[tex]= (1000 kg/m^3 - 1.225 kg/m^3) * 9.81 m/s^2 * (L/\sqrt2)[/tex]

= 9.439 * L

Therefore, the gauge pressure of the air in the tank is:

Pgauge = Patm - ΔP

= 101325 Pa - 9.439 * L

Note that the pressure will be in Pa, and you can convert it to other units like psi or bar as necessary.

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does freezing involve the creation of a crystal structure

Answers

Yes, freezing involves the creation of a crystal structure. Freezing is the process of changing a liquid to a solid by cooling it below its freezing point.

During the freezing process, the molecules of the liquid slow down and begin to arrange themselves in a repeating pattern, forming a crystal structure. The crystal structure that forms during freezing is determined by the chemical composition of the substance, its temperature, and the rate at which it is cooled.

If a liquid is cooled slowly, larger and more well-defined crystals will form, whereas if a liquid is cooled quickly, smaller and less well-defined crystals will form. The crystal structure created during freezing can have a significant impact on the physical properties of the solid, such as its strength, transparency, and melting point.

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How many mmols of hbr are in 17.6 ml of 0.0200m hbr?

Answers

The number of mmols of HBr are in 17.6 ml of 0.0200 M HBr is 0.352 mmol.

The volume of the solution = 17.6 mL = 0.0176 L

The molarity of the solution = 0.0200 M

The expression for the molarity of the solution is as :

The molarity = moles / volume in L

The number of the moles = molarity × volume

The number of moles = 0.0200 × 0.0176

The number of the moles = 0.000352 mol

The number of the moles in mmoles = 0.352 mmol

Thus, the number of moles of HBr is 0.352 mmoles in the 17.6 ml of the 0.0200 M.

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what is the type of polyester that gets formed in the reaction between ethylene glycol and phthalic anhydride?

Answers

The polyester that gets formed in the reaction between ethylene glycol and phthalic anhydride is Glyptal.

Poly(ethylene terephthalate), additionally referred to as PET, is the main polyester. It is a copolymer of ethylene glycol and terephthalic acid. PET and all different polyesters are produced industrially with the aid of using transesterification reactions. PET is ready with the aid of using the response of dimethyl terephthalate with ethylene glycol at 150 °C. Glyptal is a polyester, is shaped with the aid of using ethylene glycol and phthalic acid shaped with the aid of using step-boom polymerization as proven withinside the above response. As it warms, the phthalic anhydride will start to soften and dissolve withinside the ethylene glycol. You may also note that because it does so, the answer seems to boil; the water produced with the aid of using the response is boiling away.

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What size filter paper should be used with a hirsch funnel?

Answers

The size of filter paper you should use with a Hirsch funnel depends on the size of the funnel. if you have a Hirsch funnel with a diameter of 7cm, you might choose filter paper with a diameter of 9cm.

To determine the appropriate filter paper size, you should select a filter paper that is slightly larger in diameter than the widest part of the Hirsch funnel. This allows the filter paper to fit snugly in the funnel and helps to prevent it from folding or collapsing during the filtration process.

For example, if you have a Hirsch funnel with a diameter of 7 centimeters, you might choose filter paper with a diameter of 9 centimeters. This will provide enough excess filter paper to fold over the edges of the funnel and ensure a tight fit.

It's also important to choose the appropriate grade of filter paper based on the nature of the material being filtered and the desired filtration rate. You can consult the manufacturer's instructions or a laboratory handbook for guidance on selecting the appropriate grade of filter paper.

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Determine the moles of aluminium ions in 1.25mol of AI203

Answers

2.5mol of  aluminium ions are in 1.25mol of AI[tex]_2[/tex]O[tex]_3[/tex]. There are precisely  6.022×10²³  elementary entities in a mole.

What is mole?

The International System of Units uses the mole (symbol mol) as the unit of substance quantity (SI). How so many elementary units of a certain substance are present in an item or sample is determined by the quantity of that material.

There are precisely  6.022×10²³  elementary entities in a mole. An elementary thing may consist of an atom, an molecule, and ion, and ion pair, or maybe a subatomic particle like an electron dependent on what the material is. AI[tex]_2[/tex]O[tex]_3[/tex] contains 2 mole of aluminium ion

mole of AI[tex]_2[/tex]O[tex]_3[/tex] =1.25mol

mole of aluminium ion =2×1.25mol =2.5mol

Therefore, 2.5mol of  aluminium ions are in 1.25mol of AI[tex]_2[/tex]O[tex]_3[/tex].

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Which functional groups have been altered in a ddNTP compared to a dNTP?

Answers

A ddNTP differs from a dNTP in that it has a non-nucleotide group attached to the sugar moiety.

dNTPs and ddNTPs are both types of nucleotides used in DNA synthesis. A dNTP (deoxynucleoside triphosphate) is a building block of DNA that contains a deoxyribose sugar, a nitrogen-containing base (adenine, guanine, cytosine, or thymine), and three phosphate groups.

On the other hand, a ddNTP (dideoxynucleoside triphosphate) has a non-nucleotide group attached to the sugar moiety, which terminates DNA chain extension. As a result, ddNTPs differ from dNTPs in terms of the functional group attached to the sugar moiety.

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What are strong electrolytes list ?

Answers

Strong electrolytes are substances that completely dissociate into ions when dissolved in water, resulting in a high concentration of ions in solution. Here are some examples of strong electrolytes:

What are strong electrolytes ?Strong bases include potassium hydroxide and sodium hydroxide (NaOH) (KOH)Salts that can be dissolved include calcium chloride, potassium sulphate, and sodium chloride (NaCl) (CaCl2)Aluminum chloride and magnesium nitrate are examples of ionic compounds (AlCl3)

It's significant to remember that not all substances that dissolve in water function as powerful electrolytes. Weak electrolytes are substances that only partially breakdown into ions. Also known as non-electrolytes, some substances like nonpolar molecules do not dissociate at all.

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How many moles of H2O are needed to react with 7 moles Mg(OH)2 with excess Mg3N2?
answer asap plssss

Answers

In the presence of extra Mg3N2, a reaction involving 7 moles of Mg(OH)2 requires 14 moles of water.

One mole—what is it?

A mole is the volume of a substance that contains 6.022 X 1023 of the substance's particles, atoms, ions, molecules, etc. A mole is a unit for counting molecules, ions, or atoms.

The reaction between Mg(OH)2 and H2O has the following balanced chemical equation:

Mg(OH)2 + 2H2O → Mg(OH)2·2H2O

This indicates that 2 moles of water react with 1 mole of Mg(OH)2.

We may determine how many moles of water are required by using the following formula since we have 7 moles of Mg(OH)2.

7 moles Mg(OH)2 × (2 moles H2O / 1 mole Mg(OH)2) = 14 moles H2O.

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select the appropriate pipette to use for each of the following volumes:
A.) 874 uL
B.) 57 uL
C.) 340 uL
D.) 15 uL

Answers

A: 1000 µL micropipette, B: 100 µL micropipette, C: 1000 µL micropipette or 1 mL graduated pipette and D: 20 µL micropipette or 25 µL micropipette.

A) 874 µL: An appropriate pipette to use for 874 µL could be a P1000 pipette, which has a volume range of 100 µL to 1000 µL.

B) 57 µL: An appropriate pipette to use for 57 µL could be a P200 or P20 pipette. The P200 has a volume range of 20 µL to 200 µL, while the P20 has a volume range of 2 µL to 20 µL.

C) 340 µL: An appropriate pipette to use for 340 µL could be a P1000 or P200 pipette.

D) 15 µL: An appropriate pipette to use for 15 µL could be a P20 pipette, which has a volume range of 2 µL to 20 µL.

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according to the kinetic-molecular theory, particles in solids

Answers

According to the kinetic-molecular theory, particles in solids are in constant motion.

Explain kinetic-molecular theory?

The kinetic-molecular theory is a theory that explains the properties of gases in terms of the motion and interactions of molecules. This theory states that all gases are composed of tiny particles that are in constant motion and that these particles collide with each other and with the walls of their container. The collisions between the molecules cause the gas particles to move in random directions, and the motion of these particles is what is responsible for the pressure of the gas. The kinetic-molecular theory also states that the average kinetic energy of the individual gas molecules is proportional to the temperature of the gas.

In the kinetic-molecular theory, particles in solids have fixed positions and are unable to move or vibrate, which help to explain the properties of solids such as their rigidity and strength.

Therefore, particles in solids are in constant motion.

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What is the chemical p2?

Answers

The chemical P2 refers to the diphosphorus molecule, which is a compound made up of two phosphorus atoms bonded together.

Diphosphorus, also known as P2, is a chemical compound composed of two phosphorus atoms covalently bonded together. It is a highly reactive and unstable molecule that is rarely encountered in its pure form. Diphosphorus is an allotrope of phosphorus, meaning it is a different structural form of the same element.

At room temperature, diphosphorus exists as a colorless, odorless gas with a molecular weight of 60.98 g/mol. It is highly reactive and can easily ignite when exposed to air, making it a fire and explosion hazard. Diphosphorus is also highly toxic and can cause severe burns and respiratory problems if inhaled.

Diphosphorus has a unique electronic structure with a triple bond between the two phosphorus atoms. This triple bond makes the molecule highly reactive and unstable, as it seeks to break apart and form more stable bonds with other atoms. As a result, diphosphorus is a useful starting material for the synthesis of other phosphorus-containing compounds.

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Why is freezing endothermic?

Answers

Freezing is endothermic process. It involves absorption of heat from the surrounding environment.

A substance will have a freezing point and if we cooled it down below that, the particles in the substance start to lose energy and it will slow down.

So when the temperature is decreased, the kinetic energy will also decrease for the particles. They will start to move closer together.

So imagine if the particles are moving together, then the attraction or attractive force between the particles can become stronger. So this makes them arrange themselves in more orderly fashion or structure.

This requires energy because they are overcoming the intermolecular forces between the particles.

They will absorb energy from surrounding. So we can say freezing is an endothermic process.

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What is the difference between a natural and a synthetic substance?

Answers

Answer:

natural and synthetic substances

Explanation:

natural substances are naturally occurring substances without human interference.

synthetic substances are the man made substances which are made from the natural substances.

Hope it helps..

What is the type of ClF3 molecule?

Answers

The type of the ClF₃ molecule is the covalent compound. The Chlorine Trifluoride will represents the trigonal bipyramidal geometry.

The Chlorine Trifluoride that is ClF₃ represents the trigonal bipyramidal geometry. In the chlorine trifluoride compound, there are the three bond pairs of the electrons and the two lone pairs of the electrons around the central atom that is the chlorine atom. The total of the five pairs of the electrons represent the trigonal bipyramidal geometry.

The covalent compound is formed by the mutual sharing of the electrons. The chlorine atom will forms the three covalent bonds with the surrounding fluorine atoms in the stable state.

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Benzoic acid has limited solubility in water, but its conjugate base is completely soluble in water. Draw the structure of the product formed when benzoic acid is treated with aqueous sodium hydroxide? Click in the checkered box to open the structure drawing tool box.

Answers

When benzoic acid is treated with aqueous sodium hydroxide, it undergoes a neutralization reaction to form sodium benzoate, water, and hydrogen gas.

The balanced chemical equation for the reaction is: C6H5COOH + NaOH → C6H5COO-Na+ + H2O

In this reaction, the sodium hydroxide reacts with the benzoic acid to form sodium benzoate (the conjugate base of benzoic acid) and water.

The hydrogen gas is formed as a byproduct of the neutralization reaction. Sodium benzoate is completely soluble in water, while benzoic acid has limited solubility in water.

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Which type of light has the longest wavelength?
Group of answer choices

Gamma-rays

Microwave

Infrared

Radio

Answers

I think it would be radio but not 100%sure

Student Name:
Lesson Check: Weather Patterns
Date:.
10) Scientists are monitoring two colliding air masses along a frontal boundary. They are
concerned that a tornado may form.
Which data collected along the frontal boundary would best alert scientists that the two
colliding air masses may cause a tornado?
OA) strong gusty winds and cloudy skies where the fronts meet
OB)
O C)
air masses of the same temperature and altitude coming together where the fronts
meet
large differences in temperature, humidity, and air pressure on either side of where
the fronts meet
D)
many similarities in the altitude of clouds, amount of clouds, and wind direction on
either side of where the fronts meet

Answers

The data collected along the frontal boundary would best alert scientists that the two colliding air masses may cause a tornado is large differences in temperature, humidity, and air pressure on either side of where the fronts meet. Therefore, option C is correct.

What happens when two weather fronts meet?

When two different air masses collide, they do not mix. They rub up against each other along a line known as a front. Because warm air is lighter, it rises when it collides with cold air. It cools at high altitude, and the water vapor it contains condenses.

A weather front is a transition zone at the Earth's surface between two different air masses. Each air mass has its own temperature and humidity profile.

Turbulence is common at a front, which is the boundary between two different air masses. Clouds and storms can form as a result of turbulence.

Thus, option C is correct.

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Write the decay equation for the beta decay of uranium-232.

Answers

Answer:

Explanation:

The beta decay of uranium-232 can be represented by the following equation:

232U ------------> 232Th + 0e + v

where 0e represents a beta particle (an electron) and v represents an antineutrino.

In a chemical change, the substances that make up matter change into other substances with ______ physical properties and chemical properties.

Answers

In a chemical change, the substances that make up matter change into other substances with physical properties and chemical properties.

What is  chemical change?

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. Some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. Understanding chemical changes is a major part of the science of chemistry.

When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated. An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen. So much energy is released that the hydrogen gas released spontaneously burns in the air. This is an example of a chemical change because the end products are chemically different from the substances before the chemical reaction.

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what is diels alder reactions?

Answers

Answer:

The reaction between a conjugated diene and an alkene

Explanation:

The Diels–Alder reaction is the reaction between a conjugated diene and an alkene (dienophile) to form unsaturated six-membered rings. Since the reaction involves the formation of a cyclic product via a cyclic transition state, it is also referred to as a "cycloaddition".

QuestionThe smallest part of an element that retains the chemical properties of the element.AelectronBmoleculeCatomDproton

Answers

The smallest component of an element that maintains its identity during a chemical reaction is known as the atom.

What is the smallest part of an element that retains its identity in a chemical reaction?

The smallest piece of matter with all of an element's chemical properties is an atom. The tiniest part of an element, an atom nonetheless possesses all of the element's chemical characteristics. is a positively charged particle that moves around the nucleus.

The smallest elemental particle that can retain all of an element's chemical characteristics is an atom. It is the indivisible unit of matter that is capable of existing alone. It is a substance that makes up matter. The smallest component of an element that maintains its identity during a chemical reaction is known as the atom.

The smallest component of an element, an atom has exactly the same chemical makeup as the element as a whole. Dalton's Atomic Theory, which states that all matter is made up of indivisible, indestructible atoms, was the first reliable theory describing the nature of matter.

Therefore, the correct answer is option C) atom.

The complete question is;

The smallest part of an element that retains the chemical properties of the element.

A) electron

B) molecule

C) atom

D) proton

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A solution is prepared by dissolving 23.7 g of CaCl 2 in 375 g of water. The density of the resulting solution is 1.05 g/mL. The concentration of Cl- in this solution is ________ M.
Also, The concentration of HCl in a solution that is prepared by dissolving 5.5 g of HCl in 200 g of C2H6O is ________ molal.

Answers

The concentration of HCl in the solution is 0.651 mol/kg.

To find the concentration of Cl- ions in the CaCl2 solution, we can first calculate the number of moles of CaCl2 that were dissolved:

23.7 g of CaCl2 / 110.98 g/mol

=> 0.214 moles of CaCl2

Next, we can use the number of moles to find the number of moles of Cl- ions:

0.214 moles of CaCl2 × 2 moles of Cl- ions/mole of CaCl2

= 0.428 moles of Cl- ions

Finally, we can use the volume of the solution to find the concentration in moles per liter (M):

Volume = 375 g of water ÷ 1.05 g/mL

=> 357.14 mL

=> 0.35714 L

Concentration = 0.428 moles of Cl- ions ÷ 0.35714 L

=> 1.20 M

So, the concentration of Cl- ions in the CaCl2 solution is 1.20 M.

Next, to find the concentration of HCl in molality, we can first calculate the number of moles of HCl that were dissolved:

5.5 g of HCl ÷ 36.46 g/mol

=> 0.151 moles of HCl

Next, we can use the number of moles of HCl and the mass of the solvent (C2H6O) to find the molality:

Molality = 0.151 moles of HCl / (200 g of C2H6O ÷ 46.07 g/mol)

=> 0.651 mol/kg

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when combining a strong acid with water to dilute it, you should add the acid to the water.

Answers

The given statement "when combining a strong acid with water to dilute it, you should add the acid to the water" is true because when diluting a strong acid, it is generally recommended to add the acid to the water, rather than the other way around; therefore the given statement is true.

This is because the process of mixing a strong acid with water can generate a significant amount of heat, and adding water to the acid can result in a rapid release of this heat, potentially causing the solution to boil or splatter. On the other hand, adding the acid slowly to the water allows for better heat dissipation, reducing the risk of splattering or boiling. Therefore, the general rule of thumb is to "add acid to water", which helps ensure safe and controlled mixing.

"

when combining a strong acid with water to dilute it, you should add the acid to the water.

True

False

"

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How do you convert moles to mass?

Answers

The molecular weight is the number of grams per mole for the substance and the conversion factor for moles to grams for that specific substance.

Molecules are made up of different atoms. For example, a water molecule (H₂O) is composed of one oxygen atom and two hydrogen atoms. Molecular weight (or molecular weight) is the sum of the atomic masses of all atoms present in a molecule. Moles is the amount in grams of a substance numerically equal to molecular weight. According to Avogadro's number, the number of molecules of a substance in one mole is 6.02 × 10²³ molecules. If we know the molecular weight of a substance and number of moles, then we can calculate the weight of substance, using the formula: molecular weight × number of moles

= mass of the substance in grams. Therefore, the mass of 1 mole of water is 18.02 g (1 mole of H₂O x 18.02 g/mol = 18.02 g).Hence, we got the relationship between moles and mass of substance.

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2. Specific heat capacity is
a.
the quantity of heat needed to change 1.00 g of a substance by 1.00 K.
b. the mass of a substance that 1.00 J of energy will heat by 1.00 K.
C.
the mass of a substance that 1.00 cal of energy will heat by 1.00 K.
d. the temperature change undergone when 1.00 g of a substance absorbs 4.184 J.
the quantity of heat required to melt 4.184 g of a substance.
e.

Answers

Specific heat capacity is the quantity of heat needed to change 1.00 g of a substance by 1.00 K.

Option A is correct

How do we describe Specific heat capacity?

Specific heat capacity is like an objects 'thermal inertia' it is an object's resistance to an change in temperature.

Water has a very high specific heat and it takes a long time for it to lose heat and it also takes a long period of time to gain heat.

The formula for specific heat capacity, C , of a substance with mass m , is shown as C = Q /(m ⨉ ΔT) .

Where Q is the energy added and ΔT is the change in temperature.

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What is the Bohr model for argon?

Answers

The Bohr model for argon is a representation of the arrangement of the electrons in the atom of the element argon.



In the Bohr model, the electrons are arranged in concentric circles around the nucleus of the atom. Each circle represents a different energy level, and the electrons are located in these energy levels according to their energy.

For argon, the Bohr model shows that there are 18 electrons in the atom. These electrons are arranged in the following way:

- 2 electrons in the first energy level
- 8 electrons in the second energy level
- 8 electrons in the third energy level.

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what is the ph of a solution that contains 11.7g of nacl for every 200 ml of solution? Why have many empires tried to control Eastern Europe Michael has $16 and wants to buy a mixture of cupcakes and fudge to feed at least 4 siblings. Each cupcake costs $4, and each piece of fudge costs $2. This system of equations models the scenario: 4x + 2y 16 x + y 4 Part A: Describe the graph of the system, including shading and the types of lines graphed. Provide a description of the solution set. (4 points) Part B: Is the point (2, 3) included in the solution area for the system? Justify your answer mathematically. (3 points) Part C: Choose a different point in the solution set and interpret what it means in terms of the real-world context. (3 points) What period numbers are the radioactive metals found in? What is the meaning of vestigial structures? Which of the following is true of the location of the terminal side of an angle 0 who's sine value is 1/2?- has a reference angle of 30 and is in quadrant one or two- as a reference angle 30 and is in quadrant one or four- has a reference angle of 60 and is in quadrant one or two- as a reference angle of 60 in is in quadrant one or four Which of the following are steps in the closing process? Select all that apply.a) Nominal accounts are reset to zero.b) Real accounts are reset to zero.c) Net income is transferred to the cash account on the balance sheet.d) Net income is transferred to the retained earnings account on the balance sheet.e) The retained earnings account is reset to zero. Identify the reducing and oxidizing agents and determine the species that is oxidized and the species that is reduced. a. Mg + Fe2+ ----> Mg2+ + Fe b. Cu2+ + Sn ----> Sn2+ + Cu c. H2 + CH2=CH2 -----> CH3CH3 Reducing agent Oxidizing agent Species being reduced Species being oxidized This plane divides the body into equal right and left halves.a) frontalb) midsagittal c) transverse d) obliquee) coronal The fluid mosaic model proposes that(a) membranes can move like a fluid.(b) proteins are embedded into the cell membrane.(c) materials that are fluid move across a membrane.(d) the composition of membranes includes a mosaic fluid. identify the location of the thick and thin myofilaments, strands of proteins called myosin and actin What always happens at the Two Minutes Hate? A chemistry student weighs out 0.950 kg of an unknown solid compound X and adds it to 2.00 L of distilled water at 24. C . After 10 minutes of stirring, only some of the X has dissolved. The student drains off the solution, then washes, dries and weighs the X that did not dissolve. It weighs 0.570 kg.1) Using the information above, can you calculate the solubility of X?2) If so, calculate it. Remember to use the correct significant digits and units.Thanks! Refer to Figure 5-2. If the tuition is set at $70 there will bea.a shortage at 10 a.m. and a surplus at 8 a.m.b.a surplus at 10 a.m. and a shortage at 8 a.m.c.equilibrium at 10 a.m. and a surplus of seats at 8 a.m.d.equilibrium at 10 a.m. and a shortage of seats at 8 a.m. Rhetorical Device, Appeal or Figurative Language and the examples to all figurative language answeredpathoslogospathosethosironyrhetorical questionalliterationallusionhyperbolepersonificationsimile which of the following are normally included in a credit application? (choose every correct answer.) compute 90 and 95% cis for the parameter associated with age. using just these intervals what could we have deduced about the p-value for age in the regression summary? Presented below are selected transactions on the books of Simonson Corporation.May 1, 2010 - Bonds payable with a par value of $900,000, which are dated January 1, 2010, are sold at 106 plus accrued interest. They are coupon bonds, bear interest at 12% (payable annually at January 1), and mature January 1, 2020. (Use interest expense account for accrued interest.)Dec 31 - Adjusting entries are made to record the accrued interest on the bonds, and the amortization of the proper amount of premium. (Use straight line amortization.)Jan. 1, 2011 - Interest on the bonds is paid.April 1 - Bonds of par value of $360,000 are called at 102 plus accrued interest, and retired. (Bond premium is to be amortized only at the end of each year.)Dec 31 - Adjusting entries are made to record the accrued interest on the bonds, and the proper amount of premium amortized.Instructions:Prepare the journal entries for the transactions above. What are the 7 major Ethical issues in nursing practice? Change in the Global Environment (Connect) Use your knowledge of the changing global business environment to fill in the blank in the following sentence. When gasoline prices rose sharply in the 1970s, U.S. automakers were caught in a stance toward the global context and lost market leadership to Japanese manufacturers as a result, Which of the following is not an example of a firm's competitive response to a change in the global business environment? Understanding that much of the population in the Middle East is under 25, a technology firm conducts market research to find out how the new generation's tastes and values differ from those of their parents. An accounting and consulting firm varies its professional compensation plan to better fit employees' expectations in different countries and thereby attract top talent. A business-to-business (B2B) firm researches laws regulating wholesale trade in the European Union, including standards for storing and shipping hazardous and perishable materials As a company strengthens its online presence, it maintains its website in English only and offers products that have proven popular among American consumers. Grade It Now Save & Continue