what is 20 times 200000000

Answer:

kg or kilograms

Explanation:

Answer: Kilogram (kg)

Explanation: The SI unit of mass is the kilogram (kg). It is equal to the mass of the international prototype of the kilogram and it is defined as the mass of platinum-iridum (Pt-Ir).

Step 1

The reaction involved:

2 Al (s) + 3 CuSO4 (aq) => Al2(SO4)3 (aq) + 3 Cu (s) (completed and balanced9

---------------

Step 2

Information provided:

1.25 g Al

3.28 g CuSO4

---

Information needed:

The molar masses of:

Al) 27.0 g/mol

CuSO4) 160 g/mol

Al2(SO4)3) 342 g/mol

----------------

Step 3

The limiting reactant:

By stoichiometry:

2 Al (s) + 3 CuSO4 (aq) => Al2(SO4)3 (aq) + 3 Cu (s)

2 x 27.0 g Al ------ 3 x 160 g CuSO4

1.25 g Al ------ X

X = 1.25 g Al x 3 x 160 g CuSO4/2 x 27.0 g Al

X = 11.1 g CuSO4

For 1.25 g of Al, 11.1 g of CuSO4 is needed but there is 3.28 g, so the limiting reactant is CuSO4.

---------------

Step 4

The amount of Al2(SO4)3:

2 Al (s) + 3 CuSO4 (aq) => Al2(SO4)3 (aq) + 3 Cu (s)

3 x 160 g CuSO4 ------------ 342 g Al2(SO4)3

3.28 g CuSO4 ------------ X

X = 2.34 g

Answer: 2.34 g Al2(SO4)3

Answer: WAIT WHAT- YOU SHOULD BE MY FRIEND BTW SNAP IS kpurdham5

Explanation: ‍♂️

Answer:

Explanation:

Decomposition reaction, also known as analysis or dissociation, is a type of chemical reaction in which a compound breaks down into simpler substances or elements. In this reaction, a single reactant undergoes a chemical change and produces two or more products.

The decomposition reaction can be represented by the general equation:

AB → A + B

Where AB is the reactant, and A and B are the products. The reactant AB is usually a compound, and it breaks down into its constituent elements or simpler compounds.

There are different types of decomposition reactions, including:

Thermal decomposition: It occurs when a compound is heated, resulting in its decomposition into simpler substances. For example, the thermal decomposition of calcium carbonate (CaCO3) produces calcium oxide (CaO) and carbon dioxide (CO2):

CaCO3 → CaO + CO2

Electrolytic decomposition: It takes place when an electric current is passed through an electrolyte, causing it to break down into its component ions. For instance, the electrolysis of water (H2O) leads to the decomposition into hydrogen gas (H2) and oxygen gas (O2):

2H2O → 2H2 + O2

Photochemical decomposition: It occurs when a compound undergoes decomposition due to exposure to light energy. Chlorine gas (Cl2) can decompose into chlorine atoms (Cl) under the influence of light:

Cl2 → 2Cl

These are just a few examples of decomposition reactions. They are important in various chemical processes and are used in industries, laboratory experiments, and natural phenomena. By understanding and controlling decomposition reactions, scientists can gain insights into the behavior of different compounds and develop practical applications in fields such as chemistry, materials science, and environmental science.

Answer:

Explanation:

reaction in which a compound breaks down into simpler substances or elements

At STP one mole of a gas contains 22.41 liters. Here, 36.05  g or 0.78 moles  of nitrogen dioxide will produce 0.78 moles of nitrogen gas and 1.56 moles of oxygen gas. Hence, total volume of gas produce is 52.3 liters.

STP condition is the condition at which the temperature is 298 K and pressure is 1 atm.

As per the given equation, 2 moles of nitrogen dioxide gives 2 moles of oxygen gas and one mole of nitrogen gas.

molar mass of NO₂ = 46 g/mol

no.of moles in 36.05 g = 28.04/46 = 0.78 moles.

0.78 moles of  NO₂ produce  1.56 moles of O₂ and 0.78  moles of  N₂.

volume of one mole at STP = 22.41 L.

then volume in 0.78 moles = 0.78 × 22.41 = 17. 47 L

volume of 1.56  moles of  O₂ = 1.56 × 22.41 = 34.9 L.

Then total volume = 52.37 L.

Therefore, 28.04 g of NO₂ gas will give a total volume of 41 L of gases.

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The expected boiling points of the compounds, in order from highest to lowest, would be CH3OH > CH3Cl > CH4

CH3OH - Methanol is a polar organic compound with a boiling point of 64.7°C.

CH4 - Methane is a non-polar organic compound with a boiling point of -164°C.

CH3Cl - Chloromethane is a polar organic compound with a boiling point of 40.1°C.

Therefore, the expected boiling point order is CH4 < CH3Cl < CH3OH.

The temperature at which a material transforms from a liquid into a gas is known as its boiling point.This is usually determined by the vapor pressure of the substance; when the vapor pressure of a liquid is equal to the atmospheric pressure, it boils and changes to a gas.

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The value of Sn = 1/3(2^n + 2cosnπ/3) if n is not a multiple of 3, when Sn =  nc0 + nc3 + nc6 + nc9 +...

Given that Sn = nC0 + nC1 + nC2 + nC3 +.....

We know that : (1 + x)^n = nC0 + nC1x + nC2x^2 + nC3x^3 +........+ nCnx^n

Let x = 1 then:

(1 + 1)^n = nC0 + nC1 + nC2 + nC3 +........+ nCn

2^n =  nC0 + nC1 + nC2 + nC3 +........+ nCn

Let x = ω then:

(1 + ω)^n = nC0 + nC1ω + nC2ω^2 + nC3ω^3 +........+ nCnω^n

Let x = ω^2 then:

(1 +ω^2)^n = nC0 + nC1ω^2 + nC2ω^4 + nC3ω^6 +........+ nCnω^2n

Adding the above three equations we get:

3(nC0 + nC3 + nC6 + nC9 + .....) = 2^n - (ω^2)^n + (-ω)^n

(nC0 + nC3 + nC6 + nC9 + .....) = 1/3(2^n + 2cosnπ/3)

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Option (d), P=ATC=MR=MC, accurately represents the long-run equilibrium condition for perfect competition, reflecting the balance between price and cost for firms operating in a competitive market.

The long-run equilibrium condition for perfect competition is that price (P) is equal to average total cost (ATC), which is also equal to marginal cost (MC), and marginal revenue (MR).

Option (d), P=ATC=MR=MC, best represents the long-run equilibrium condition for perfect competition. In perfect competition, firms operate at the minimum point of their average total cost curve, where price equals both average total cost and marginal cost. This condition ensures that firms are earning zero economic profit and are producing at an efficient level.

In the long run, if firms are earning economic profit, new firms will enter the market, increasing competition and driving prices down. Conversely, if firms are experiencing losses, some firms may exit the market, reducing competition and causing prices to rise. This process continues until firms reach a state where price equals average total cost, marginal cost, and marginal revenue, ensuring a long-run equilibrium.

Therefore, option (d), P=ATC=MR=MC, accurately represents the long-run equilibrium condition for perfect competition, reflecting the balance between price and cost for firms operating in a competitive market.

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The test for reasonableness in the liquidated damages analysis involves a comparison between the amount of damages that have been prospectively agreed upon by the parties in a contract and the actual damages that may be incurred in the event of a breach.

The objective of this test is to determine whether the agreed-upon amount of damages is reasonable or whether it is disproportionate to the actual harm caused by the breach.The reasonableness test involves two main factors: (1) the anticipated or actual harm caused by the breach, and (2) the amount of liquidated damages agreed to in the contract. If the liquidated damages are much higher than the actual harm caused by the breach, then they may be considered unreasonable and unenforceable. On the other hand, if the liquidated damages are equal to or lower than the actual harm caused by the breach, then they may be considered reasonable and enforceable.

In summary, the reasonableness test is a comparison between the amount of damages that have been prospectively agreed upon in a contract and the actual damages that may be incurred in the event of a breach. This test helps to ensure that the agreed-upon amount of damages is reasonable and proportional to the harm caused by the breach, and it can help prevent unfair or excessive damages from being imposed.

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The concentration of calcium hydroxide (in mol/L or g/L), I would be able to assist you in calculating the amount of calcium hydroxide present in the solution.

To determine the grams of calcium hydroxide (Ca(OH)2) in the solution, we need to use the pH and volume of the solution. However, we also require additional information about the concentration of calcium hydroxide in order to make a precise calculation.

The pH of a solution alone does not provide sufficient information to determine the concentration of calcium hydroxide. The pH is a measure of the concentration of hydrogen ions (H+) in a solution, while calcium hydroxide dissociates to produce hydroxide ions (OH-). Without the concentration of calcium hydroxide, we cannot directly calculate the grams of calcium hydroxide in the solution.

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Answer:

O lowering the temperature of the system

Answer:

B- how much time it took a fossil to form

Explanation:

To determine the ages in years of Earth materials and the timing of geologic events such as exhumation and subduction, geologists utilize the process of radiometric decay.

The Grignard reagent needed to convert 2-pentanone to 3-methyl-3-hexanol is propylmagnesium bromide. The reaction is as follows:

Grignard reagents are organometallic reagents prepared from alkyl halides (R-X) and magnesium metal (Mg). They are used to synthesize alcohols by reacting with carbonyl compounds (C=O). The general reaction mechanism of a Grignard reagent with a carbonyl compound is as follows:

R-MgX + C=O → R-C(O)-OMgX → R-C(O)-OH,

where R represents the organic part of the reagent.

The reaction of 2-pentanone with propylmagnesium bromide will produce 3-methyl-3-hexanol as shown below:

Answer: Propylmagnesium bromide

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Action potentials are generated at the axon hillock and are conducted along the axon.

The axon hillock is the region of the neuron where the axon originates from the cell body. It is responsible for integrating the incoming signals from the dendrites and initiating the action potential. Once the action potential is initiated, it travels down the axon, which is a long, slender projection of the neuron. The axon is insulated by the myelin sheath, which helps to increase the speed of conduction.

At the end of the axon, the action potential reaches the terminal buttons, which are small knobs that release neurotransmitters into the synapse, a gap between neurons. From there, the neurotransmitters can bind to receptors on the dendrites of the next neuron, initiating a new round of electrical activity. The glial membrane surrounds both the axon and dendrite, providing support and insulation for the neuron.

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Answer:

A. would be your answer

thanks

The chemical formula for the ionic compound magnesium chlorate is \(Mg(ClO_{3} )_{2}\) i.e., option A is correct.

Metals and non-metals interact to produce ionic compounds. To get the closest configuration of a noble gas, an element can either acquire or lose electrons.

By either losing or gaining electrons, this aids in their stabilization after the completion of the octet. In order to complete their octet, non-metals often absorb electrons, whereas metals lose their electrons.

Here, the magnesium gives off 2 electrons and the chlorate ion (\(ClO_{3}\)) gives one electron to the magnesium chlorate, which is formed as a part of the reaction.

Therefore, the correct option is A, \(Mg(ClO_{3} )_{2}\).

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The kinetic enolate is favored when the reaction is carried out at a low temperature and with a strong, bulky base.

The formation of enolates can occur through two different pathways: kinetic and thermodynamic. The kinetic enolate is formed faster and is less stable than the thermodynamic enolate.

The kinetic enolate is favored when the reaction conditions are such that the reaction rate is more important than the stability of the product, for example, when the reaction is carried out at a low temperature and with a strong, bulky base. In these conditions, the reaction is faster and the kinetic enolate is formed as the major product.

On the other hand, the thermodynamic enolate is favored when the reaction is carried out at a higher temperature and with a weaker base, allowing more time for the reaction to reach equilibrium and for the more stable thermodynamic enolate to be formed as the major product.

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The root-mean-square speed of the molecules will be the highest in SF6 at 200°C. According to the kinetic-molecular theory, the root-mean-square speed of gas molecules is directly proportional to the square root of their absolute temperature and inversely proportional to the square root of their molar mass.

The formula for calculating the root-mean-square speed is:

vrms = √(3RT/M)

where:

vrms = root-mean-square speed

R = ideal gas constant

T = absolute temperature

M = molar mass of the gas

At a given temperature, gases with lower molar masses will have higher root-mean-square speeds. In this case, we are comparing gases at 200°C. Among the given options (O2, H2O, and SF6), SF6 has the highest molar mass. Therefore, according to the kinetic-molecular theory, the root-mean-square speed of SF6 molecules will be the highest at 200°C.

The root-mean-square speed of molecules is not the same for all gases at a given temperature. It depends on the molar mass of the gas. In this case, SF6 has the highest molar mass among the given options, so its molecules will have the highest root-mean-square speed at 200°C.

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A) The heat released by the reaction can be calculated by using the equation q = ΔH = -nΔHf, where q is the heat, ΔH is the change in enthalpy, n is the number of moles, and ΔHf is the change in enthalpy of formation.

Since the reaction releases 15,026 kJ of heat per mole of C12H26, we can calculate the amount of heat released by 21.3 g of CO2 produced:

First, we need to find the number of moles of CO2 produced: n = mass / molar mass = 21.3 g / (24 g/mol) = 0.8875 mol.

Next, we can use the number of moles to find the heat released: q = ΔH = -nΔHf = -0.8875 * 15026 kJ/mol = -13038.75 kJ.

B) The amount of C12H26 consumed can be calculated by using the equation q = ΔH = -nΔHf, where q is the heat, ΔH is the change in enthalpy, n is the number of moles, and ΔHf is the change in enthalpy of formation.

Since the reaction releases 15,026 kJ of heat per mole of C12H26, we can calculate the number of moles of C12H26 consumed:

n = q / ΔHf = 500 kJ / 15026 kJ/mol = 0.03308 mol.

Finally, we can use the number of moles to find the mass of C12H26 consumed:

mass = n * molar mass = 0.03308 mol * (12 g/mol + 26 g/mol) = 0.03308 mol * 38 g/mol = 1.25 g.

C) The amount of C12H26 required to generate heat to raise the temperature of 750 g of liquid water can be calculated using the equation q = mCΔT, where q is the heat, m is the mass, C is the specific heat capacity of the water, and ΔT is the change in temperature.

First, we need to find the heat required to raise the temperature of 750 g of liquid water:

q = mCΔT = 750 g * 4.18 J/g°C * (90 - 10)°C = 261300 J.

Next, we can use the equation q = ΔH = -nΔHf, where q is the heat, ΔH is the change in enthalpy, n is the number of moles, and ΔHf is the change in enthalpy of formation, to find the number of moles of C12H26 required:

n = q / ΔHf = 261300 J / 15026 kJ/mol = 17.3 mol.

Finally, we can use the number of moles to find the mass of C12H26 required:

mass = n * molar mass = 17.3 mol * (12 g/mol + 26 g/mol) = 17.3 mol * 38 g/mol = 657 g.

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First derivative curve changes direction from decreasing to increasing, indicating that the equivalence point has been reached end point volume on a first derivative plot corresponds to volume of titrant added where first derivative curve reaches a maximum. correct option is B.

An acid-base titration is a quantitative analysis method used in chemistry. A titration is a chemical reaction involving a substance of known concentration with a substance of unknown concentration until the equivalence point is reached. An acid-base titration determines the concentration of an acid or a base by calculating the volume of a titrant (base or acid) required to neutralize the solution of unknown concentration.

The endpoint of an acid-base titration can be graphically determined by plotting the first derivative of the volume of titrant added to the pH. This graph is known as a derivative curve. When the derivative curve reaches a maximum value, the endpoint of the titration is reached. This point indicates the exact volume of titrant required to reach the stoichiometric equivalence point.

The end point volume on a first derivative plot corresponds to the volume of titrant added where the first derivative curve reaches a maximum. This maximum value is known as the inflection point and represents the exact volume of titrant required to reach the stoichiometric equivalence point. The maximum value can be calculated by finding the volume of the titrant added when the slope of the first derivative curve is equal to zero.   correct option is B.

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Answer:

. Name a soluble compound that could be added to precipitate all of the iron ions from the solution.

Sodium Hydroxide.

The ways that the brightness of the flame can be increased are shown below.

By boosting the airflow into the burner, the flame's brilliance can be improved. Increasing the gas flow rate or changing the air intake valve can do this.

Using a gas that generates a brighter flame, like propane or butane, will increase the brightness of the flame. These gases produce a yellow flame because they have a higher carbon to hydrogen ratio than natural gas.

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Therefore, CaF2 will remain fully dissolved in the solution, and its solubility is considered to be greater than the concentration of fluoride ions in the solution (0.030 M).

To determine the solubility of CaF2 in a solution of 0.030 M NaF, we need to compare the solubility product constant (Ksp) of CaF2 with the concentration of fluoride ions (F-) in the solution.

The balanced equation for the dissociation of CaF2 is:

CaF2(s) ⇌ Ca2+(aq) + 2F-(aq)

From the equation, we can see that the molar solubility of CaF2 is equal to the concentration of fluoride ions, [F-]. Therefore, we need to find the concentration of fluoride ions in the solution.

Since NaF is a strong electrolyte, it completely dissociates in water to produce Na+ and F- ions. Therefore, the concentration of fluoride ions in the solution is equal to the initial concentration of NaF, which is 0.030 M.

Now we can compare the concentration of fluoride ions with the solubility product constant of CaF2:

[F-] = 0.030 M

Ksp = 4.0 × 10^(-11)

Since [F-] is greater than the value of Ksp, it indicates that the concentration of fluoride ions exceeds the solubility product of CaF2. Therefore, CaF2 will remain fully dissolved in the solution, and its solubility is considered to be greater than the concentration of fluoride ions in the solution (0.030 M).

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The solubility of potassium chloride at 90 degrees Celsius is 1.93 M when 144g of KCl is dissolved in 1 dm^3 of water.

To calculate the solubility of potassium chloride (KCl) at 90 degrees Celsius, we need to consider the amount of KCl dissolved in 1 dm^3 (cubic decimeter) of water. Given that we have 144g of KCl, we can convert it to moles by dividing the mass by the molar mass of KCl. The molar mass of KCl is the sum of the atomic masses of potassium (K) and chlorine (Cl), which is 39 + 35.5 = 74.5 g/mol.

Number of moles of KCl = mass / molar mass
Number of moles of KCl = 144g / 74.5 g/mol = 1.93 mol

Now, we know the number of moles of KCl dissolved in 1 dm^3 of water. This is also known as the molarity (M).

Molarity (M) = number of moles / volume in dm^3
Molarity (M) = 1.93 mol / 1 dm^3 = 1.93 M

Therefore, the solubility of potassium chloride at 90 degrees Celsius is 1.93 M when 144g of KCl is dissolved in 1 dm^3 of water.

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The molarity of the original ammonia solution is approximately 0.628 M.

The balanced equation for the reaction between ammonium hydroxide (NH4OH) and sulfuric acid (H2SO4) is:

2NH4OH + H2SO4 -> (NH4)2SO4 + 2H2O

From the equation, we can see that the mole ratio between NH4OH and H2SO4 is 2:1.

Given that the volume of the sulfuric acid solution is 54.95 mL and its molarity is 0.400 M, we can calculate the number of moles of H2SO4 used:

Moles of H2SO4 = Volume (L) * Molarity

Moles of H2SO4 = 54.95 mL * (1 L / 1000 mL) * 0.400 M

Moles of H2SO4 = 0.02198 mol

Since the mole ratio between NH4OH and H2SO4 is 2:1, the number of moles of NH4OH is also 0.02198 mol.

Now, we can calculate the molarity of the original ammonia solution:

Molarity of NH4OH = Moles of NH4OH / Volume (L)

Molarity of NH4OH = 0.02198 mol / (35.00 mL * (1 L / 1000 mL))

Molarity of NH4OH ≈ 0.628 M

Therefore, the molarity of the original ammonia solution is approximately 0.628 M.

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The information in a balanced chemical equation shows how many moles of a reactant are involved in the reaction is,

So, option C is correct one.

The chemical equation in which number of each type of atom is equal in both side of the arrow is called balanced chemical equation.

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According to the research, the correct words to fill the blank spaces in the sentence are shape, memory. A polymer that retains its shape is known as a shape memory polymer.

These are capable polymers that typically have a permanent state, which is the state they always have before being stretched into what is known as a temporary state.

In this sense, they can maintain their temporary shape at or around room temperature, and return to their permanent state quickly, with only a slight increase in temperature.

Therefore, we can conclude that shape memory polymer returns to its original shape after the application of heat, that is, they can retain its shape.

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Answer:

What chapter is this and what grade are you, i can check this for you

Explanation:

Formaldehyde is a substance made up of Carbon, Nitrogen, and Oxygen different types of atoms that are chemically combined in a fixed ratio of 1: 2:1. It is classified as an aldehyde.

This refers to a naturally occurring organic compound with the formula CH2O and structure H−CHO. It is also called methanal. The pure compound is a pungent, colorless gas such that it polymerizes spontaneously into paraformaldehyde. It can be stored as an aqueous solution that is formalin. This is also used to store animal specimens.

Formaldehyde is an organic compound. It contains a carbon atom present in its chemical formula. It is also classified as an aldehyde. Formaldehyde(RC=OH) contains a formyl group  and an R group, which is a group that contains carbon and/or hydrogen.

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Answer:

copper

Explanation:

so for this you can work out the mass for both and compare

so mass = moles × mr

so mass of sodium = 1 × 23= 23 g

and mass of copper = 1 × 63.5= 63.5 g

so copper have more mass :)

Using the balancing equation and molar mass conversion, the theoretical yield of acetaminophen from 3.00 g of 4-aminophenol is determined to be 4.16 g.

Acetic acid and acetaminophen are produced when 4-aminophenol and acetic anhydride combine. C6H4(NH2)(OH) + (CH3CO)2O = C8H9NO2 + CH3COOH is the reaction's balanced chemical equation.

4-aminophenol has a 1:1 molar ratio with acetaminophen. Hence, by first translating the mass of 4-aminophenol to moles and then using the molar mass of acetaminophen to convert back to grammes, one may compute the potential yield of acetaminophen.

3.00 g / 109.13 g/mol = 0.0275 mol is the number of moles of 4-aminophenol.

Acetaminophen's theoretical yield is equal to 0.0275 mol multiplied by 151.16 g/mol, or 4.16 g.

Acetaminophen thus has a theoretical yield of 4.16 g.

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