How many electrons can be ach orbital hold?

The correct answer to the multiple choice question is that treasury stock decreases stockholders' equity and has a normal debit balance.

Treasury stock is a term used to refer to shares of a company's stock that the company itself has repurchased. It is not considered an investment, as the company is buying back its own shares rather than investing in another company. When a company repurchases its own shares, it decreases the number of outstanding shares and therefore decreases stockholders' equity.

As a result, the correct answer to the multiple choice question is that treasury stock decreases stockholders' equity and has a normal debit balance. This means that when treasury stock is recorded, it is recorded as a reduction to stockholders' equity, and the accounting entry has a debit balance. Overall, treasury stock can have a significant impact on a company's financial statements and should be carefully managed and monitored.

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Answer:

C found that atoms are made of smaller particles

Explanation:

Thomson's discovery of the electron proved the existence of subatomic particles.

The contribution that J. J. Thomson makes to the development of atomic theory is as follows:

Thus, the correct option for this question is C.

Atomic theory may be defined as a scientific theory that demonstrates that each matter on the earth's surface s composed of particles called atoms. Atoms bear specific physical as well as chemical properties.

In this scientific theory, J. J. Thomson makes his contribution by stating that atoms are made of smaller particles. Apart from this, he was also well-known for the discovery of electrons. But he failed in obtaining the exact position of electrons.

This kink of the actual position of electrons was solved by Ernest Rutherford by stating that electrons surround a dense nucleus.

Therefore, atoms are made of smaller particles is the contribution that J.J. Thomson make to the development of atomic theory.

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The correct answer is "Convexity has high value when investors expect that market yields will not change much." This statement is incorrect about the convexity term of a bond.

Convexity is the curvature of the price-yield relationship of a bond and a measure of how bond prices react to interest rate shifts.

Convexity is a term used in bond markets to describe the shape of a bond's yield curve as it changes in response to a shift in interest rates.

Bond traders use the convexity term to estimate the effect of interest rate changes on bond prices more precisely.

Bond traders use the term convexity to measure the rate of change of duration, which is a measure of a bond's interest rate sensitivity.

Convexity term and its features Convexity is always positive for a plain-vanilla bond.

We can improve the estimation of a price change with regard to a change in interest rates by accounting for the convexity of the bond.

Convexity is higher when market yields are unstable or when the bond has more extended maturity and lower coupon rates.

Thus, the correct statement about the convexity term of a bond is:

Convexity is higher when market yields are unstable or when the bond has more extended maturity and lower coupon rates.

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Answer:

It is in the same phase as the reactants.

Explanation:

i took the test

Answer:

carbon-12

Explanation:

One atomic mass unit is approximately the mass of Hydrogen-1, a proton, a neutron, and precisely one-twelfth the mass of Carbon-12, meaning that Carbon-12's atomic mass is 12u.

The mass of carbon atom is 12 u.

The mass of a thing is a measurement of how much matter it contains.

Carbon is just a chemical substance with both the atomic number 6 and the symbol C.

The atomic number carbon is 6 and atomic mass is 12 u

Therefore, the carbon atom posses 12 u mass.

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As a substance undergoes a change from the solid to the liquid phase at constant temperature, the average kinetic energy of its molecules increases.

The relationship between a molecule's average kinetic energy and absolute temperature is as follows: K = 1 2 m v 2 and K = 3 2 k B T. The average kinetic energy of a substance's particles is directly inversely correlated with its temperature. As the temperature rises, the particles must move more quickly because their mass is constant. The heat that is applied when a substance is heated to a constant temperature (i.e., during the phase change state) causes the vibrating molecules to gain potential energy to dissipate the intermolecular force of attraction and move around freely. The potential energy therefore rises as a result.

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The pH of a buffer solution is determined by the concentration of the weak acid and the conjugate base present in the solution. When 0.0015 mol of Ba(OH)2 is added to 0.210 L of a solution containing 0.250 m of weak acid Hy and 0.110 m y-, the pH of the solution will be affected.

The amount of Ba(OH)2 added is small enough to not cause a drastic change in the pH, but it will still be higher than it was before the addition. The pH of the solution can be calculated by taking the ratio of Hy to y- and then using the Henderson-Hasselbalch equation, which states that the pH of a buffer solution is equal to the pKa of the weak acid plus the log of the ratio of the weak acid to the conjugate base.

After the addition of the Ba(OH)2, the ratio between Hy and y- will change, which will cause the pH to change as well. The exact pH of the solution can be calculated by taking into account the amount of Ba(OH)2 added, the initial concentrations of Hy and y-, and the pKa of the weak acid.

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The amount of water is the independent variable in this experiment.

Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses.

Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the ability to produce normal amounts of chlorophyll or to photosynthesize, but still have flowers, fruits, and seeds. Plants are characterized by sexual reproduction and alternation of generations, although asexual reproduction is also common.

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The answer of the mathematical operation to the correct number of significant figures is 1.71x10⁻⁴

The answer of the mathematical operation to the correct number of significant figures is 7.2

The no of significant figures in the answer depends on the no of significant figures in the problem given.

It is given 1.05x10⁻³/6.135 , so the number of significant figures in 1.05x10⁻³ is 3 and in 6.135 is 4. So the answer of this operation will be rounded off to have 3 significant figures only. Since the calculated amount comes out as 0.17114x10⁻³. But it has to be rounded to 4 significant figures. So the answer will be 1.71x10⁻⁴

It is given 21-13.8 , so the number of significant figures in the operation are 2 and 3 respectively. So the calculated amount comes to be 7.2 and it already has 2 significant figures.

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Answer:

a

Explanation:

I think a is the answer because when you produce something you transform it's raw materials to a finished good.

I hope this helps

The impure residue left after boiling away a solution of cocaine hydrochloride and baking soda is Cracks.

The residue is the solid part that we can get after the filtering process.  Initially, the solids are suspended in the solution that we are going to filter.  Solid residues are trapped on the filter paper during filtration.  After pouring the solution completely through the filter paper, we can obtain the total solid part, which is in the solution.

We can use different methods to separate the different components in a mixture.  For example, in a physical filtering method, a large solid mass remains in the filter;  In the biological screening method, we can obtain solids such as metabolites and different cell particulates.

Filtrate and residue are the components that we get after the filtering process.  The key difference between filtrate and residue is that the filtrate is a fluid, whereas the residue is a solid substance in suspension.  Filtration separates the two parts from each other and through further purification, we can obtain a pure substance.  Moreover, a further difference between filtrate and residue is that the filtrate can be a gas or a liquid, but the residue is always in the solid state.

When considering the end product of the filtration technique, we can obtain the filtrate as liquid which is contaminated with fine solid particles, and we can obtain the residue as a solid having residual liquid on the surface.  For example, drinking water obtained from water filters, blood serum, etc.  Are some examples for filtrates, whereas crystals produced during chemical reactions that occur via physical filtration, metabolites obtained from biological filtration, etc.  is an example for residue.

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Answer:

it should test one variable at a time.

Explanation:                                                                                                  because you will not be able to tell which variable is responsible for the observed results.

Answer:

d

Explanation:

The train will travel for 2 hours to travel a distance of 100 miles with a speed of 50m/h. Therefore, option (C) is correct.

The speed of a body is defined as the rate of change in the position of a body w.r.t. time.

Speed is a scalar parameter with both magnitude and no direction. A simple mathematical formula common way to determine speed.  

S = d / t

where S is the speed, d is the distance moved by a body and t is the time.

Although the SI unit for speed is the same as velocity is m/s and can also be expressed in miles per hour (mph), and kilometers per hour (kph).

Given, the distance traveled by train, d = 100 miles

The time taken by train = 2 hrs

The speed of the train = distance/ time = 100/2 = 50m/h

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Answer:

D. The reaction in test tube 1 is exothermic, and the reaction in test tube 2 is not.

Explanation:

just took it

The option that best explains the result is option D. That is, the reaction in test tube 1 is exothermic, and the reaction in test tube 2 is not.

In a chemical reaction, heat is either absorbed or released.

In a reaction where there is absorption of heat from the surrounding is called an endothermic reaction.

While in a reaction where heat is released into the surrounding is called exothermic reaction.

From the experiment, there is increase in temperature, from 20 to 25°C, which shows the release of temperature to the surrounding.

Therefore, the reaction in test tube 1 is exothermic, and the reaction in test tube 2 is not.

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Answer:

The type of bond that holds bronze together is a metallic bond.

Explanation:

In metallic bonding, the atoms of the metal elements, in this case, copper and tin, share their valence electrons, forming a "sea" of delocalized electrons that are free to move throughout the structure. This results in a strong attraction between the positively charged metal ions and the negatively charged electron cloud, creating a cohesive force that holds the metal atoms together in a solid structure.

The correct order of the materials from the biggest to smallest size is option b, gravel, salt, soil and talcum powder.

Gravel is the aggregates of less rounded rocks. In some locations, heavy metallic ore deposits like cassiterite or native metals like gold, in the form of nuggets or flakes, can be found accumulating in gravel beds. Gravel is a common building material.

Therefore, the gravel is the biggest here. Salt in nature appears as salt rocks. Soil is some more grained. Talcum powder is very fine and tiny soft particles. Hence, talcum powder is the smallest here.

Therefore, the order of materials from biggest to smallest is option b, gravel, salt, soil and talcum powder.

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Answer: 212 g  of sodium carbonate must react

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products formed must be equal to the mass of reactants taken.

In order to get the same mass on both sides, the atoms of each element must be balanced on both sides of the chemical equation.

The balanced chemical equation is:

\(Na_2CO_3+CaCl_2\rightarrow 2NaCl+CaCO_3\)

Mass of products = mass of  sodium chloride + mass of  calcium carbonate = 233 g+ 201 g= 434 g

Mass of reactants= mass of sodium carbonate  + mass of calcium chloride =x + 222 g

As the mass of reactants should be equal to mass of products

434  = x  + 222 g

x = 212 g

Thus 212 g  of sodium carbonate must react with 222 g of calcium chloride to make 233 grams of sodium chloride and 201 grams of calcium carbonate

The pH of the solution with a molarity of 3.8 × \(10^-^3\) is approximately 2.42. To calculate the pH, a scientific calculator or logarithmic tables is used. By evaluating the expression, the pH of the solution is approximately 2.42.

To determine the pH of a solution with a molarity of 3.8 × \(10^-^3\)), one need to use the equation relating pH and the concentration of hydrogen ions (H+):

pH = -log[H+]

In this case, the concentration of hydrogen ions ([H+]) is equal to the molarity of the solution.

Substituting the given molarity value into the equation, one can have:

pH = -log(3.8 × \(10^-^3\)))

So, to calculate the pH, one can use a scientific calculator or logarithmic tables. By evaluating the expression, the pH of the solution is approximately 2.42.

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Answer:

Improvised health has been one of the main benefits of development. As humans, we need the primary aspects of life to keep us going. (food, water, oxygen) But scientificly we need health that will improve health. and Improved Health has been one of the main benefits of development. This benefit results partly from an increase in income and partly from scientific progress in the fight against disease and disability.

We know that,

acceleration (a) = final velocity(V)-initial velocity(U)/ Time taken(T)

Answer:

53

Explanation:

Answer:

53

Explanation:

The order of decreasing bond angle is:

\(OCl_{2} > SiCl_{4} > PCl_{3} > SCl_{2} > {SiCl_6} ^{2-}\)

To determine bond angles in a molecule, it's best to determine the hybridization of the central atom. According to the VSEPR model, of the given molecules, four have tetrahedral \(sp^{3}\) hybridization (with optimal bond angles of 109 degrees) and \({SiCl_{6}}^{2-}\) has octahedral \(sp^{3}d^{2}\) hybridization (with optimal bond angles of 90 degrees). This means that \({SiCl_{6}}^{2-}\) certainly has the smallest bond angle, while the other four have variations on the value of 109 degrees.

When looking at the other four molecules, oxygen dichloride will display the widest bond angle (111 degrees), due to the bulkiness of the chlorine atoms around the relatively small oxygen atom. Silicon tetrachloride displays the ideal 109-degree angle, while phosphorus trichloride and sulfur dichloride have much smaller bond angles of 103 degrees, because of the greater repulsion exhibited by the nonbonding electron pairs. Because sulfur has two nonbonding pairs, and phosphorus only has one, the deviation will be larger with sulfur, resulting in a slightly smaller bond angle.

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Answer:

Amino acids

Explanation:

Since amino acids are the building blocks of protein,when protein is broken down by enzymes called proteases it becomes Amino acids.

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Answer:

This is just a quick tip.

Explanation:

An electric current is the movement of particles, starting at the moment when an external voltage is applied at one of the ends of the conductor. That, in turn, generates an electric field on the negatively charged electrons that are attracted to the positive terminal of the external voltage.

Answer:

Explanation:

To calculate the amount of energy removed from 10.55 kg of water to lower its temperature from 22.5 °C to 3.0 °C, we can use the formula:

Q = m * c * ΔT

where Q is the amount of energy in joules, m is the mass of water in kilograms, c is the specific heat capacity of water (4.184 J/g-K), and ΔT is the change in temperature in degrees Celsius.

First, we need to convert the mass of water from kilograms to grams:

m = 10.55 kg * 1000 g/kg = 10550 g

Next, we need to calculate the change in temperature:

ΔT = 3.0 °C - 22.5 °C = -19.5 °C

Note that we have a negative temperature change because the water is losing heat.

Now, we can plug in the values into the formula:

Q = m * c * ΔT = 10550 g * 4.184 J/g-K * (-19.5 °C) = -820,026 J

The negative sign indicates that energy is being removed from the water, which is consistent with the fact that the temperature is decreasing. Therefore, approximately 820,026 joules of energy are removed from 10.55 kg of water to lower the temperature from 22.5 °C to 3.0 °C.

Vernier Graphical Analysis is the name of the app needed to use the temperature probe in this investigation.

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Charts, figures, and graphs are used in graphical analysis to represent data. It is especially helpful in assisting managers in processing massive amounts of data. This type of study presents a substantial amount of data in a simple style.

To illustrate both particular and generic kinematics properties, graphic analysis of motion can be used. Graphs can be utilized for several physics topics. Exploring physical interactions through graphing is crucial for finding underlying patterns.

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The property can be observed without changing the identity of the substance. The property can be observed or measured these are requirements for something to be a physical property.

Physical properties are properties of matter that can be seen and studied without influencing a sample's molecular structure. The arrangement of the material in a sample may change when a physical quality is evaluated, but the molecules' patterns are unchanged.

Melting point ,boiling point are the example of physical properties.

A property of matter that is autonomous to a change in its chemical components is termed a physical property. Density, color, hardness, melting and boiling points, and electrical conductivity are very few common examples of physical features.

Thus, option A and D are correct.

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Answer: The answer is true.

Explanation: Avogadro's number is a mole, which concludes that this statement is true.