how do the minerals differ from one another how are they alike?

A man is sitting on a chair and exerting 100 N of force downward, while a spring beneath the chair exerts 150 N of force upward. The net force acting on the system is in the upward direction with a magnitude of 50N.

Force is the product of mass and acceleration which is dependent on the rate of change of momentum.

According to the given question,

Magnitude of force in the downward direction = 100N

Downward force = 100N

Magnitude of force in the upward direction = 150N

Upward force = -150N

Net force on the system = Upward force + Downward force

Net force on the system = -150N + 100N

Net force on the system = -50N

Hence, the net force acting on the system is in the upward direction with a magnitude of 50N.

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Answer: 50N

Explanation:

In the polysaccharide amylose,a large number of monosaccharides are linked together through alpha 1-4 glycosidic linkages.

Alpha 1-4 linkage is a stored form of sugar in plant. In this carbon atom 1 and 4 of the the two monomers forms a glycosidic bond. Polysaccharides are long chain forms of monosaccharides linked together by glycosidic bonds.A glycosidic bond is a covalent bond that joins a carbohydrate molecule to another group.this bond gives glycogen that is suitable for energy storage.

Amylose is plant starch made from monosaccharide connected through alpha 1-4 linkages.monosaccharides are the simplest form of sugar.from monosaccharides, all carbohydrates are built.

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⁹⁴Pu₂₄₄-------> ⁹⁵Am₂₄₃ + electron is a nuclear equation for plutonium emitting gamma radiation

Alpha particles plutonium is created in an activator when uranium atoms absorb neutrons. Nearly all plutonium is man-made. Plutonium mainly emits alpha particle is a type of radiation that is easily ceased and has a short range. It also emits neutrons, beta particles, and gamma rays. It also emits neutrons, beta particles, and gamma rays.

It is contemplated toxic, in part, because if it were to be inhaled it could deposit in the lungs and finally cause damage. There are five common isotopes of plutonium because it emits alpha particles, plutonium is most menacing when inhaled.

So we can conclude that Plutonium isotopes emit alpha rays except for plutonium-241 for which the energy of beta electrons is curiously low.

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The evidence in the question shows that there is a directional evolution that is taking place as the percentage of the tall individuals is increasing.

We know that the term natural selection implies that the organisms that are are better able to live and survive in a habitat are the ones that are able to live longer and reproduce and by so doing, they are able to transfer the favorable traits that they posses to their offspring.

Now we can also relate to the fact that the idea of directional selection is takin place when there is a situation in which the trend in the evolution seems to favor only one type of trait over another the other type of trait and this leads to a gradual increase in the abundance of the favored trait in the population.

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Answer:

Fluorine does not form an ion with a charge of 1+.

The molarity of the HCl 0.104 M

Molarity of a solute is defined as the ratio of number of moles of solute to the volume of solution (L). Solute molarity is sometimes omitted by enclosing the solute chemical formula in square brackets. For example, the concentration of chloride ions in solution can be written as  [Cl⁻]. Molarity allows you to convert between the volume of a solution and the moles (or mass) of a solute.

For the given case,

HCl + NaOH --> NaCl + H2O

Since,

M₁V₁ = M₂V₂

M₁ = concentration of NaOH

V₁ = volume of NaOH

M₂ = concentration of HCl

V₂ = volume of HCl

Substitute the given values in the equation mentioned above:

26.18 × 0.0995 = M₂ × 25.00

2.60491 = 25 M₂

M₂ =  0.104 M

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Answer:

Magnesium + hydrochloric acid → magnesium chloride + hydrogen

why? because the product of a neutralization reaction are always a salt and water. This reaction is the only one which does not have water as a product, so it is not neutralization.

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The pressure, in atm, if the sample of helium is compressed to 125 ml is 2.32 atm

An ideal gas is a theoretical gas composed of many randomly transferring factor particles that aren't difficult to interparticle interactions. the best gasoline idea is beneficial because it obeys the precise gas law, a simplified equation of country, and is amenable to evaluation under statistical mechanics.

Volume is a degree of occupied three-dimensional space. it's far more frequently quantified numerically the usage of SI-derived gadgets or by way of diverse imperial gadgets. The definition of length is interrelated with the extent.

Using the ideal gas equation:-

At constant temperature

Given;

P₁ = 0.9 atm

V₁ = 322 ml = 0.322 L

P₂ = ?

V₂ = 125 ml = 0.125 L

P₁V₁ =P₂V₂

P₂ = P₁V₁ /V₂

    = 0.9 × 0.322 /0.125

    = 2.32 atm

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Answer:

One mitigating strategy for planning and zoning is to protect people and the environment from the nuisance impacts of facilities like landfills, sewage treatment plants and factories through land use planning tools. I learned that people need to Reduce greenhouse gas emissions through their food choices to mitigate the effects of using Renewable energy.

Answer:

99 g/mol

Explanation:

2 carbon atoms in one molecule means double all the other atoms

(12*2)+(35.5*2)+(1*4)=99g/mol

A  time when you experienced microaggression was when i wnet to college in another state. The lecturer in one of my course was very angry that i left my tribe, my state to another state to study. There was element of mockery in his voice.

I felt sad, angry and also bad at the same time. I just wanted to run away from the class because all eyes were on me.

Microaggressions relate to ionization energy through the power they command or hold. I can explain Microaggressions  as ionization energy to someone  as having the power to aggressively give out a part of you that can be good or bad.

Ionization energies gauge an atom's propensity to resist losing electrons. For instance, removing an electron from a neutral fluorine atom to create a positively charged ion requires a significant amount of energy.

Note that Microaggressions are everyday verbal, behavioral, or environmental slights that signal hostility, denigration, or negative views toward stigmatized or culturally marginalized groups. They can be deliberate or inadvertent. Chester M., a psychiatrist at Harvard University, originated the phrase.

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7.133 is the rate constant increase if the temperature is raised to 37c.

factor=rate(T2)/rate(T1) .

The proportionality constant (k) that links the pace of the reaction to the concentrations of reactants is known as the specific rate constant. For any chemical reaction, the rate law and the particular rate constant must be ascertained through experimentation. Temperature affects the rate constant's value.a chemical reaction in which two or more substances interact and change into new ones, or where one substance transforms into another.

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Answer:

45 mins

Explanation:

it takes 45 minutes long

Here are 3 alkali metals with physical and chemical similarity.

What is alkali metals?

Alkali metals are come from the fact that when these metals or their oxides dissolved in water.a basic solution results.

Three alkali metals -

1- hydrogen(H)

2-lithium(Li)

3-potassium(K)

physical and chemical similarity of hydrogen -

-it is colourless and tasteless in nature.

-it is a combustible gas but not a supporter of combustion.

physical and chemical similarity of lithium -

-it have a melting point of 180.54

-it is the lightest of all metals,with a density approximately half that of water.

physical and chemical similarity of pottasium -

- this metal is soft and white with a silver lustre.

-it imparts a lavender colour to a flame, and it's vapour is green.

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38.1 ml of a 12% (v/v) propyl alcohol solution would need 4.5 ml of propyl alcohol.

What purpose does the isopropyl alcohol solution serve?

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cyclohexanone is the compound which is shown.

what is cyclohexanone-

The chemical substance known as cyclohexanone has the formula (CH2)5CO. The compound is a six-carbon cyclic molecule with a functional group called a ketone.

IUPAC (International Union of Pure and Applied Chemistry) nomenclature is based on the naming of a molecule's longest chain of carbons connected by single bonds, whether in a continuous chain or in a ring.

six-carbon ring with oxygen bonded to one of the carbon atoms in the ring is cyclohexanone.

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The wavelengths of light that can break the Cl-Cl bond and the bond in O₂ will be λ = 3.53 × 10⁻⁷ m and λ =2.4 × 10⁻⁷ m respectively.

Cl-Cl- Bond energy (E)= 339 KJ/mol

O=O Bond energy (E)= 498 KJ/mol

h = 6.626 × 10⁻³⁴ J.s

c = 3 × 10⁸ m/s

N = 6.02214076 × 10²³

For Cl-Cl bond

  We will use the following formulae

     λ = Nhc/E (for one mol photons)

  Put the values

λ = [(6.02214076 × 10²³ p/mol)(6.626 × 10⁻³⁴ J.s)(3 × 10⁸ m/s) / (339 × 10³ J/mol)] × 1 nm / 10⁻⁹ m

    λ = 353 nm

    λ = 3.53 × 10⁻⁷ m

For O=O bond

  We will use the following formulae

     λ = Nhc/E (for one mol photons)

  Put the values

λ = [(6.02214076 × 10²³ p/mol)(6.626 × 10⁻³⁴ J.s)(3 × 10⁸ m/s) / (498 × 10³ J/mol)] × 1 nm / 10⁻⁹ m

    λ = 240 nm

    λ = 2.40 × 10⁻⁷ m

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The empirical formula of a compound containing c, h, and o is C₂H₆O₁.

In chemistry, the empirical formula represents the simple whole-number ratio of the atoms which are present in the compound. The initial step is to calculate and determine the masses. The next step which follows is to calculate the number of moles by dividing the grams by the atomic mass. Next, the number of moles is divided by each element by the smallest number of moles. Finally, we convert numbers to whole numbers since we don't represent empirical formulas in decimals.

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The digital signal is a signal that encodes data as a series of discrete values; at any one moment, it can only take on a maximum of one of a finite set of values.

A digital signal, in contrast, represents continuous values; it always reflects a real number within a continuous range of values. Information is represented by simple digital signals in discrete analogue level bands. The same information state is represented by all levels in a band of values. The signal in the majority of digital circuits can have two legitimate possible values; this is known as a binary signal or logic signal.

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According to the given statement Object B, by 1 gram per cubic centimeter object has a greater density.

The measure of how densely a substance is pressed together is called density. As the weight per unit volume, it meets that definition. The formula for density, denoted by the symbol D, is given as follows: density = m/V, where m denotes the object's mass and V its volume.

Mass and volume are intimately linked with density. In reality, it explains the precise nature of the connection between the two. By dividing the mass of an object by its volume, we may get its densities. The mass is said to have a low population density if it has a high volume but a tiny mass.

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Answer:

c

Explanation:

The compound that is covalent is the compound A.

We know that the forces that holds the molecules of an ionic substance together is so strong that the ionic substances are known to have a high melting and a high boiling point. Thus, it is already clear that the compounds B and C are both ionic because they are highly conducting and they also have a high melting and boiling point.

The compound A has a low melting and boiling point and also does not conduct electricity. This goes to tell us that A is a covalent compound.

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Answer:

compound A

Explanation:

edge 2023

The aqueous solution here would freeze at -9.163 degree celsius.

The temperature at which it boils is 375.60 K. This gets converted into Celsius = 102.45-degree Celsius (i)

The standard temperature of boiling is = 100 degree Celsius (ii)

The standard temperature of freezing is = 0 degrees celsius (iii)

We know the formula -  

Depression in cooling/ Elevation in boiling = [tex]K_{b}[/tex] / [tex]K_{f}[/tex] (iv)

The standard values for both Ks are 0.5 and 1.87 respectively. (v)

Using the given values of (i), (ii), (iii), (iv), and (v), we find that -

= (102.45 - 100.00) / (0 - x) = 0.5 / 1.87

x, here is the temperature for freezing.

= Temperature at which it freezes = - 9.163 degree Celsius.

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If a hydrogen atom could have any value of energy, then a continuous spectrum would have been observed, similar to blackbody radiation.

What is ionization energy ?

Ionization energy (also called ionization potential) is the amount of energy required to remove an electron from an isolated atom or molecule in chemistry and physics. There is an ionization energy for each successively removed electron. However, the ionization energy associated with the removal of the first (most loosely held) electron is most commonly used.

The ionization energy of a chemical element, expressed in joules or electron volts, is usually measured in a discharge tube in which rapidly moving electrons produced by an electric current collide with gas atoms of the element, releasing one of them. will be electronic.

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The pH of the solution is 13.16.

We know that the pH has to do with the concertation of  the hydrogen ions that we have in the solution. We have to first obtain the concentration of the hydroxide ions and then use that to obtain the pH of the solution accordingly.

Number of moles of NaOH = 5.80 g/40 g/mol = 0.145 moles

Concentration of the solution =  0.145 moles/1 L =  0.145 M

pOH = - log( 0.145 M)

= 0.84

pH = 14 - 0.84

= 13.16

We can get the pH of the solution as 13.16.

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The impedance of an AC circuit with 10 ohm resistor, 12 ohm inductive reactance and 7 ohm capacitive reactance is 11.2 ohm.

What is impedance?

Impedance is the resistance of a circuit to AC which is caused by the combining effects of ohmic resistance and reactance. It is represented by the symbol Z and its unit is ohm. It is a measure of opposition to electric flow.

The impedance of an AC circuit can be calculated by,

Z = [(R^2) + (XL - XC)^2]^1/2

where R = resistance, XL = inductive reactance, XC = capacitive reactance

Z = [(10^2) + (12 - 7)^2]^1/2 = (100 + 25)^1/2 = 11.2 ohm.

Therefore, the impedance of an AC circuit with 10 Ohm resistor, 12 ohm inductive reactance and 7 ohm capacitive reactance is 11.2 ohm.

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Transitions of electrons within atoms or ions form spectral lines at different rungs which leads to emission of lines of different colors. Spectrum of calcium is more complicated than the spectrum of hydrogen because calcium atom have more electrons than hydrogen.

A spectral line in an otherwise smooth and continuous spectral is a dark or bright line resulting from the emission or absorption of light in a narrow frequency range compared to adjacent frequencies. Spectral lines are frequently used to identify atoms and molecules.

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6.6  is the mole fraction of xe if the partial pressures of ne and ar are 2.10 and 4.50 atm, respectively.

The idea of partial pressure is driven by the fact that each individual gas contributes to the overall pressure in a given proportion, which corresponds to its partial pressure. In order to characterize all the pieces, it is essentially equivalent to taking a % or proportion of the whole.

The total pressure is equal to the sum of the individual pressures, according to Dalton's law.

Ptotal = total pressure of gases = 12.20 atm

Pne = partial pressure of ne = 2.10 atm

Par = partial pressure of ar = 4.50 atm

Pxe = partial pressure of xe = ?

putting in the values we get:

12.20 = 2.10 + 4.50 + Pxe

Pxe = 5.6

We employ Dalton's law to determine the solution's vapor pressure, which is:

Ptotal = (Pxe + Xxe)

We are given:

Pxe = partial pressure of xenon = 5.6

Xxe = mole fraction of xenon = ?

Using the values in the aforementioned equation, we get:

12.20 = (5.60 * Xxe)

Xxe = 6.6

The mole fraction of Xe is 6.6 as a result.

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