Any environmental concerns about the use of flerovium

Answer:

32 gm O

Explanation:

there are 16 gm of O in each 18 gm of water ....the other two grams are H

so there would be 32 gm of oxygen in 36 gm water

The mass of KClO₃ that was decomposed in the given reaction by the ideal gas equation is approximately 7.19 grams.

Given:

Pressure (P) = 0.964 atm

Volume (V) = 0.65 L

Temperature (T) = 22 °C = 22 + 273.15 = 295.15 K

The ideal gas law: PV = nRT

Where:

P = Pressure in atm

V = Volume in liters

n = Number of moles

R = Ideal gas constant = 0.0821 L·atm/(mol·K)

T = Temperature in Kelvin

n = (PV) / (RT)

n = (0.964 atm) × (0.65 L) / (0.0821 L·atm/(mol·K) × 295.15 K)

n ≈ 0.0294 mol

2 moles of KClO₃ produce 1 mole of O₂. Therefore, the number of moles of KClO₃decomposed would be:

Moles of KClO₃= 2 × 0.0294 mol

Moles of KClO₃≈ 0.0588 mol

Molar mass of KClO₃= 122.55 g/mol

Mass of KClO₃= Moles of KClO₃× Molar mass of KClO₃

Mass of KClO₃≈ 0.0588 mol × 122.55 g/mol

Mass of KClO₃≈ 7.19 grams

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The calculated value at 50 percent and 75 percent loss could be expected to be given by the equation t1/2 = ln(2)/λ . Hence t1/2 is independent of time.

Now,

 according to the given question,

   We have to calculate the values for  50% and 75% loss.

Hence,

  The difference in time is to be (300-160) = 140 sec, which means that  it is closer to 160s to that of half-life.

This is expected result.

The value of A₀ does not matter to calculate the half-life. Whatever the initial value is , it will always take the same time to get halved.

  We have,  

 N = No e– λt                                  

where

N = No/2  

t = t1/2

Now

½ = e– λ t1/2

λ t1/2 = ln (2)

hence,

 t1/2 = ln(2)/λ

Hence,

  t1/2 is independent of time.

Thus, from the above conclusion we can say that the calculated value at  50% and 75% loss would be expect to be given by t1/2 = ln(2)/λ . t1/2 is independent of time.

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Explanation:

Lithium is an electropositive element that readily loses electrons.

Oxygen is electronegative and it will readily accept electrons.

 Due to this significant electronegativity differences between the two species they form electrovalent or ionic bonds between them.

  2atoms of Li lose two electrons:

      Li  →  Li²⁺ + e⁻

             Lithium isoelectronic with helium

 For oxygen;

      O + 2e⁻   →  O²⁻

                          Oxygen is isoelectronic with Neon

Two ions of the lithium combines with the oxygen to form the bond;

                   4Li + O₂  →  2Li₂O

The electrostatic attraction between the two ions forms the ionic bond

Answer:less reactive than sodium

Explanation:

Answer:

Fluorine (F):

highly reactive nonmetal

Explanation:

Answer:

Sinkholes this is the answer

Answer:

B. Mining

Explanation:

trust

The word can include any letter of the alphabet (26 letters) and that repetition is allowed, then the number of possible arrangements of 100 letters is equal to \(26^100,\) which is a very large number (approximately\(1.43 x 10^143).\)

Assuming that by "wiord" you mean "word", there are different ways to interpret this question depending on the context.

If you are referring to the molecule O4, which is not a stable compound under standard conditions and is more commonly known as an ozone molecule, then there is only one arrangement of atoms that is possible. This is because the O4 molecule consists of four oxygen atoms that are chemically equivalent and can only form one unique structure.

If you are referring to a word made up of 100 letters, then the number of different arrangements of atoms is not applicable as atoms are not involved in the context of words.

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The word can include any letter of the alphabet (26 letters) and that repetition is allowed, then the number of possible arrangements of 100 letters is equal to 2600 which is a very large number .

If you are referring to the molecule O4, which is not a stable compound under standard conditions and is more commonly known as an ozone molecule, then there is only one arrangement of atoms that is possible. This is because the O4 molecule consists of four oxygen atoms that are chemically equivalent and can only form one unique structure.

If you are referring to a word made up of 100 letters, then the number of different arrangements of atoms is not applicable as atoms are not involved in the context of words.

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Answer:

In order to determine the number of moles of the given volume of Ar, divide the given volume by the molar volume of an ideal gas,  

22.710 L/mol

Explanation:

So you have a volume of  6 .5

6.5L / 22.710 L/mol

L is eliminate .

6.5/ 22.710 L/mol = 0.286 mol

Using the older STP values of  0 ∘ C  or  273.15 K , and pressure of  1 atm , molar volume is  22.414 L/mol .

6.5L /22.414 L/mol .= 0.289 mol

The natural frequency of the force sensor is determined by the mass and spring constant, while the damping ratio indicates the type of damping present in the system (underdamped, critically damped, or overdamped).

The mass-spring-damper system represents the force sensor, with mass m, damping coefficient c, and spring constant k. To determine the natural frequency of the system, we use the equation:

ω_n = √(k/m)

where ω_n represents the natural frequency. The natural frequency is determined solely by the mass and the spring constant, indicating how quickly the system oscillates without any external forces.

To find the damping ratio, we use the equation:

ζ = c / (2√(mk))

where ζ represents the damping ratio. The damping ratio determines the rate of decay of the oscillations, indicating how quickly the system returns to its equilibrium position after being disturbed.

If the damping ratio ζ is less than 1, the system is considered underdamped. If ζ equals 1, it is critically damped, and if ζ is greater than 1, the system is overdamped.

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The diagrams have the following chemical structures in order: 4-propylhept-3-ene, 5-propyloct-2-ene, 2-butene, 6-ethyl-2,3,4,4-tetramethyloctane, 2,3-dimethylhexane.

Chemical structures are representations of molecules and compounds that show the arrangement of atoms and bonds in a molecule. They are a way to visually depict the chemical composition and connectivity of a substance.  They are essential for understanding the properties and behavior of molecules and compounds, and for designing new compounds with specific properties.

Chemical structures are useful in chemistry, biochemistry, biophysics and structural biology, to understand chemistry of compounds and synthesise new compounds from existing ones. Some chemical structures include the Lewis model, ball and stick models and space-filling models.

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Natural gas burns more cleanly than oil does and is denoted as option C.

This is referred to as a type of hydrocarbon containing material which is formed naturally in the Earth's crust from the remains of dead plants and animals and examples include coal, natural gas etc.

Natural gas has one of the cleanest sources of energy when compared with other fossil fuel types and it is known to burn more cleanly than oil does because carbon emissions are usually at a very minimal amount which is therefore the reason why it was chosen as the correct choice.

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Hello! HNO2 is not a strong acid so therefore your answer is A.

A rule of thumb, the rest are strong acids, so when you ever come across a similar question you will be able to rule out the wrong answers quicker :).

Strong acid list:

H2SO4

HNO3

HCLO4

HCLO3

HCL

HBr

HI

hope this helps!

Answer:

17.6510 L

Explanation:

First we should get the number of moles of helium here by Boyle's law

PV=nRT

P=750/760= 0.9868 atm

T=25+273=298 kelvin

R= 0.08206

V= 20L

so

n=PV/RT

n=0.9868×20/0.08206×298

n=0.80707 mol

Then use the same law

V=0.80707×0.08206×263/0.9869=

17.6510L

SO THE VOLUME WILL BE 17.6510 L

At the constant pressure in the balloon, the final volume of the helium gas was equal to 70.94 ml at a temperature of -10ºC.

Charles's law states that when the pressure of the gas keeps constant, the volume of the gas is directly proportional to its absolute temperature.

Therefore, V  ∝ T

or \(\frac{V_1}{T_1} =\frac{V_2}{T_2}\)                                                      .............(1)                          

Given, the initial temperature of the helium gas, T₁ = 25 ºC

The absolute temperature, T₁ = 25 + 273.15 = 298.15 K

The final temperature of the helium gas, T₂ = -10 ºC

T₂ = - 10 + 273.15 = 263.15 K

Given, the initial volume of the gas, V₁ = 20 L, and assume that V₂ is the final volume of the helium gas.

Substitute the value of V₁, T₁ and T₂ in the equation (1), we get;

\(\frac{20}{298.15} =\frac{V_2}{263.15}\)

\(V_2 = \frac{20\times 263.15}{298.15}\)

V₂ = 17.65 L

Therefore, the final volume of the helium gas is equal to 17.65 L at -10 ºC,  when the pressure in the balloon will constant.

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Answer:

B.chlorine ,Cl2 is the one

The decreasing order of reactivity towards electrophilic substitution reaction is,

               Toluene > benzene >  chlorobenzene > nitrobenzene

An electrophilic substitution reaction is defined as a chemical reaction in which the functional group attached to a compound is replaced by an electrophile. The displaced functional group of electrophilic substitution reaction is typically a hydrogen atom.

Toluene is defined as having one methyl group which is electron-donating group causing a negative charge on the carbon atom of the ring so it is highly reactive towards electrophile which is already electron deficient in nature.

Benzene is defined as having a delocalized set of electron cloud which attracts electrophile while nitro group are electronegative while causing positive charge on carbon atom so are not reactive towards electrophilic substitution reaction.

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The correct question is,

Write the decreasing order of reactivity towards electrophilic substitution reaction of the following compounds, benzene, chlorobenzene, nitrobenzene and toluene.

Answer:

\(\boxed {\tt 0.1875 \ g/cm^3}\)

Explanation:

Density can be found by dividing the mass by the volume and using the following formula.

\(d=\frac{m}{v}\)

The mass of the cork is 30 grams.

The volume of the cork is 160 cubic centimeters.

\(m= 30 \ g\)

\(v= 160 \ cm^3\)

Substitute the values into the formula.

\(d=\frac{30 \ g}{160 \ cm^3}\)

Divide.

\(d=0.1875 \ g/cm^3\)

The density of the cork is 0.1875 grams per cubic centimeter or 0.1875 g/cm³

The delta gvalue for the fumerase reaction is -3.4 kj *mol but the deltag value is close to zero. Yes this reaction likely to be a contorl point for the citric acid cycle.

ΔG=-3.4 KJ/MOL

ΔG=-3.4*10³

ΔG=ΔG°+RTlmQ

ΔG=-2.303 RTlog G

-3.4*10³=-2.303*8.314*310 log Q

log Q = 3400/2.303*8.14*310

log Q=0.5728

Q=3.739

Malate is formed when fumarate is reversibly hydrated by the enzyme fumerase reaction. The tricarboxylic acid cycle, which generates reducing equivalents to power oxidative ATP synthesis, includes a reaction that fumarase catalyzes that is essential for cellular energetics. In the mitochondria, the TCA cycle enzyme fumarase catalyzes the conversion of fumarate to L-malate. The cytosolic echoform of fumarase is localized to the nucleus in response to DNA damage, where its enzymatic activity catalyzes the conversion of malate back to fumarate, leading to a local accumulation of fumarate. In a process known as reverse translocation, some of the molecules return to the cytosol. If protein folding of the fumarase molecule begins in mitochondria, it will localize to the mitochondrial matrix if protein folding begins outside of mitochondria.

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Answer:

c = 0.29 J/g.°C

Explanation:

Given data:

Mass of sample = 22.5 g

Initial temperature = 25°C

Final temperature = 90°C

Heat absorbed = 431 J

Specific heat of material = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 90°C - 25°C

ΔT = 65°C

431 J = 22.5 g × c × 65°C

431 J = 1462.5 g.°C  × c

c = 431 J/1462.5 g.°C

c = 0.29 J/g.°C

Answer:

2.5 mL

Explanation:

Generally    cm^3   and ml are used interchangeably  but ml is often used for liquids and cm^3 for solids    

2.5 cm^3 = 2.5 cm^3

Answer:

medium in which it is traveling

Explanation:

i hope it helps u

Answer:

In other words, the hot dog buns limit the number of complete hot dogs we can produce. ... The amount of a product that is formed when the limiting reactant is fully ... the limiting reactant and calculate the theoretical yield for an actual chemical reaction. ... Method 1: For the first method, we'll determine the limiting reactant by ...

Explanation:

Regarding the limiting reagent, it is true that:

Which of the following is true of a limiting reagent?

Regarding the limiting reagent, it is true that:

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Answer:

As the pressure rises, the volume also rises. As the volume lower, the pressure lowers.

Answer:

yes??

Explanation:

The bond dissociation energy (BDE) for the C-C bond in ethane is much higher than the BDE for the marked C-C bond in but-1-ene due to the differences in the types of bonds and electron distribution.

In ethane, the C-C bond is a single sigma (σ) bond, which is stronger and more stable because of the head-to-head overlap between the orbitals. In but-1-ene, the marked C-C bond is a part of a double bond, which consists of one sigma (σ) bond and one pi (π) bond. Pi (π) bonds are weaker than sigma (σ) bonds due to the sideways overlap of the orbitals.

Moreover, the double bond in but-1-ene leads to electron delocalization, making the marked C-C bond less stable and more susceptible to dissociation. As a result, the BDE for the C-C bond in ethane is higher than the BDE for the marked C-C bond in but-1-ene.

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Answer:

its C

Explanation:

The nuclear reactions for two steps that produces 125i and 124xe are:

¹²⁴Xe₅₄ + ¹n = ¹²⁵Xe₅₄       neutron

¹²⁵Xe₅₄ + ⁰e₋₁ = ¹²⁵I₅₃        electron capture

Product of electron capture by 125i

⁰e₋₁ = ¹²⁵Te₅₂

Nuclear reaction is defined as a process in which the nucleus of an atom is changed by being split apart or joined with the nucleus of another atom.

Let's see an important example of nuclear fission is the splitting of the uranium-235 nucleus when it is bombarded with neutrons. Various products can be obtained from this nuclear reaction. Another much important example of nuclear fission is the splitting of the plutonium-239 nucleus.

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Answer:

200 mt

Explanation:

two meters each second for a 100 seconds is 200 mt