What percentage is the smell from monomer on the Paper towel

The reaction is given :    ²³⁴Pa₉₁  ----->   X  +   ⁰e₋₁ , the equation is balanced and the nucleus represented by X is ²³⁴U₉₂.

The balanced reaction is given as :

²³⁴Pa₉₁  ----->   X  +   ⁰e₋₁

This reaction is the balanced reaction and X is represented the nucleus and is given as :  ²³⁴U₉₂.

The given reaction is the nuclear reaction. the nuclear reaction is the reaction in which the nuclides are produced by the collision between the two atoms nuclei. the nuclear reaction are of the two types the nuclear fission and the nuclear fusion reaction. the nuclear fission is the splitting of the large nuclei in to the smaller ones.

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If the reaction is exothermic as described, a rise in temperature will thus trigger the opposite reaction, which will result in a decrease in the amount of the products and an increase in the number of reactants. The reverse outcome will occur if the temperature is lowered.

B. The concentration of the products increases.

A reaction is defined as exothermic if the overall standard enthalpy change (H) is negative. Exothermic processes typically produce heat. Exergonic reaction, which the IUPAC defines as "... a reaction for which the overall standard Gibbs energy change G is negative," is frequently mistaken with the phrase.

Because "H" contributes significantly to "G," a strongly exothermic process is typically also exergonic. Exothermic and exergonic chemical reactions make up the majority of the impressive demonstrations in schools.

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Choloracetic acid, 12 g. The colorless solution of the white crystalline substance known as chloroacetic acid.

Up to 80% of the solution can be acidic. By inhalation, ingestion, and skin contact, it is poisonous. It corrodes flesh and metals.

The equilibrium of the buffer is

CH2ClCO2 + H+ HCH2ClCO2

PKA = Log Ka

Ka: [CH2ClCO2] = 1,3 x 103. "H+" / "HCH2ClCO2"

Using the Henderson-Hasselbalch formula:

pH equals pka plus log10 [A]/[HA].

2,89 + log10 [A] / [HA] = 3,01

1,318 = [A⁻] / [HA]

Since chloroacetic acid (HA) has a molar concentration of 0,20M

[A⁻] = 0,26 mol/L

There are 500 mL plus 0.5 L.

Chloroacetic acid is equal to 0,26 mol/L x 0,5 l, or 0,13 moles. By weight:

Choloracetic acid is equal to 0,13 mol (94,5g / 1mol) = 12 g.

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The volume of the object is 1.5ml.

This refers to the space occupied within the boundaries of an object in three-dimensional space. It is also called the capacity of the object.

In the question:

ρ = 400 g/mL

m = 600 mg

v = ?

Formular for calculating density ρ:

ρ = m/v

Where,

ρ= Density of the object

m= Mass of the object

v = volume of the object

Were are given the values of density and mass in the question. We are to calculate the volume.

Makinig v subject of the formular we have:

v = m/ρ

v =  600 mg

      400 g/mL

v = 1.5ml

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Answer: True. Voltaic cells, also known as galvanic cells, are able to provide energy in the form of electricity because the potentials of their redox reactions permit electrons to flow spontaneously. Redox reactions involve the transfer of electrons from one species to another, and the flow of electrons through a circuit can be used to do work, such as powering an electric motor or a lightbulb. The potential difference between the two half-cells in a voltaic cell is called the cell potential, and it determines the direction and magnitude of the flow of electrons.

Explanation:

D ) The answer that best depicts the diagnostic cleavage that is typical of the mica group of minerals which include muscovite and bietet is a single, planar cleavage .

Cleavage is the splitting of minerals along natural planes of weakness

When there is only one cleavage plane, a single, planar cleavage known as the basal or pinacoidal cleavage takes place. cleaved at the base of the graphite. Mica (like muscovite or biotite) has basal cleavage, that's why mica can be peeled into thin sheets.

So single planar cleavage is answer of this question.

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Zinc reacts with hydrochloric acid is the correct observation of a chemical property and the right response to the question above.

Equation:

Zn +2HCL  →    ZnCl2 +H2

Balanced equation:  

 Zn +2HCL  →     ZnCl2 +H2

Atomic number 30 and the letter Zn identify zinc as a chemical element. When the oxidation is eliminated, zinc becomes shiny-greyish and becomes a somewhat brittle metal at normal temperature.

Zinc is a crucial trace element for all living things, including humans, animals, plants, and microbes. After iron, it is the trace metal found in humans in the second-highest concentration. As a crucial cofactor for several enzymes, zinc is also a crucial vitamin for development. Many disorders can be caused by a zinc shortage. slowing in growth, infection susceptibility, and diarrhea are among effects of deficiency in children. . Consuming too much zinc can result in copper shortage, ataxia, and sluggishness.

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AlCl 3 is Lewis base,PH3 is Lewis base,BH3 is Lewis acid ,BF3 is Lewis acid.

The crucial step is AlCl 3 accepting a chloride ion lone-pair to generate AlCl 4 and the highly acidic, or electrophilic, carbonium ion. Lewis bases:  RCl +AlCl 3 → R + + AlCl 4−, etc. [ edit] The highest occupied molecular orbital (HOMO) of an atomic or molecular species that is strongly localised is known as a Lewis base.Lewis acid borane (BH3) has three hydrogen atoms and one boron atom in its molecule. The Lewis structure of borane features a single connection connecting each hydrogen atom to boron (BH3). Only three bonds surround the boron atom, and there are no lone pairs on the atom itself. We will learn how to draw the BH3 Lewis structure in this lesson.Only six electrons orbit the boron atom, according the Lewis structure of BF3. As a result, the boron atom's octal is incomplete. Borane BF3 is therefore regarded as a Lewis acid.A highly poisonous gaseous chemical is phosphorus. Three sigma bonds and one lone pair are present around the phosphorus atom in the Lewis structure of phosphine (PH3). Hydrogen and phosphorous atoms have no charges. The trigonal pyramidal shape of PH3 is a fundamental shape.

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According to the given statement 5 °C temperature change is observed.

The variation in heat is measured by a calorimeter. A metal water container placed above an exhaust gases serves as the basic component of a calorimeter. The amount of water's temperature change is measured using a thermometer.

The calorimeter burns a 1.221g sample.

The calorimeter contains 1.240 kg of water .

The calorimeter has a heat capacity of 1365 j/°C.

∆H rxn = -3227 kj/mol of benzoic acid

Given: 1.221 g is the mass of the benzoic acid

Benzoic acid's molecular weight is 122.12 g/mol.

122.12 g benzoic acid = 1 mol

1.221 g benzoic acid =1.221/122.12= 0.0099 moles

When burned, 1 mol of benzoic acid releases 3227 kj of energy.

Burning 0.0099 moles of benzoic acid produces energy

= 3227kj×(0.0099mols)/1 mol =32.2647 kj =32264.7 j

The calorimeter absorbed thermal energy

= 1365 j/C ×T

Water absorbs heat

= m× C× T

= 1240 g( 4.18 j/gC ) ×T

= 5183.2j/C×T

the total amount of heat absorbed

= 1365T + 5183.2T

=6548.2T

6548.2T=32264.7

T= 4.92 deg.C

T= 5 °C

The result is a 5 °C temperature change.

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To solve such we need to have concept of spontaneity. The terms "feasible" and "likely" are both used to describe spontaneous processes. Therefore, second reaction will occur spontaneously.

The word "spontaneity" refers to a process's viability. A process is referred to as spontaneous if it can occur either on its own or as the result of some initiation under a certain set of circumstances. In other terms, a spontaneous process is one that may happen on its own, without any outside intervention.

For a reaction to be spontaneous, the value for ΔG should be negative and for that cell potential should be positive value according to following equation.

ΔG=-nFE

ΔG = Gibbs's free energy

E= cell potential

F= 96500

n= number of electron

Therefore, second reaction will occur spontaneously.

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The decomposition of H2O2 is represented by the equation above. the reaction us thermodynamically favorable 4H₂O₂ → 4H₂O + 2O₂

The following diagram illustrates how hydrogen peroxide decomposes chemically;

2H₂O₂ → 2H₂O + O₂

As a result, one oxygen molecule and two water molecules result from the breakdown of two hydrogen peroxide molecules.

Numerous chemical substances spontaneously react with molecular oxygen to produce peroxides in the form of free radicals.

Given that there are four hydrogen peroxide molecules breaking down in the diagram, we have;

4H₂O₂ → 4H₂O + 2O₂

The results of the breakdown of the four molecules of hydrogen peroxide are depicted in the accompanying diagram.

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As per the given balanced reaction, one mole or 63.5 g of Cu produces 2 moles or 215.6 g of silver metal. Hence, 5 g of copper produces16.9 g of Ag.

A displacement reaction is a type of reaction, in which one element or group of the reactant is displaced by the attacking group or element. The reaction between copper and silver nitrate is an example of single displacement reaction.

Given the balanced equation  of the reaction. One mole of Cu produces 2 moles of Ag.

atomic mass of Cu = 63.5 g/mol

atomic mass of Ag = 107.8 g/mol

mass 2 moles of Ag = 2 × 107.8 =215.6 g.

Hence, 63.5 g of Cu produces 215.6 g of Ag.

The mass of Ag produced by 5 g of Cu is calculated as follows:

mass of Ag = (5 × 215.6 g) /63.5 g = 16.9 g

Therefore, the mass of silver precipitated will be 16.9 g.

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An organism with the genotype of AaXx can produce gametes containing  either AX, Ax, aX, ax  if the two genes are unlinked .

An organism's genotype is the complete set of its genetic material. [1] Genotype can also be used to refer to the alleles or variants that an individual has at a particular gene or locus. The number of alleles an individual can have for a particular gene depends on the number of copies of each chromosome (also called polyploidy) found in that species. Diploid species like humans have two complete sets of chromosomes. This means that each individual has her two alleles for a particular gene. If both alleles are the same, the genotype is said to be homozygous. If the alleles are different, the genotype is called heterozygous.

Genotypes contribute to the phenotype, observable traits and characteristics of an individual or organism. The extent to which genotype influences phenotype depends on the trait.

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The volume occupied at 25 °C. Remember to convert between °C and K. V2 = 3.311 L is the correct answer.

What is volume?

Volume is the measure of the amount of space occupied by an object or a substance. It is measured in three dimensions: length, width, and height. In the International System of Units (SI), it is measured in cubic meters (m3). Volume is also commonly measured in liters (L), gallons (gal), or cubic feet (ft3). Volume can also refer to the amount of a substance or object, such as the volume of a gas or the volume of a liquid.

Temperature and Volume equation

Given,

The volume at -12°C = 2.90L

Temperature, T1 = -12°C

= (-12°C + 273)

= 261K

And, Volume at 25°C = ?

(25°C + 273)K

= 298K

Now, by using this equation:-

V1/T1 = V2/T2

V2 = V1 x T2/T1

V2 = 2.90L x 298K/261K

V2 = 3.311L

Hence, The volume at  25°C will be 3.311L

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Answer:

Metals react with water to form oxides or hydroxides and release Hydrogen gas

Explanation:

Since CH3CH2CH2NH2 may form intermolecular hydrogen bonds, it has a higher boiling point than other compounds. The hydrogen atoms in (CH3)3N (C H 3) 3 N are joined to the carbon atoms.

Since carbon is not a particularly electronegative atom, it cannot donate hydrogen. There aren't any hydrogen atoms to accept, despite the fact that nitrogen is a strong hydrogen atoms. As a result, CH3CH2CH2CH3 is a nonpolar molecular complex in which induced dipole forces are the only intermolecular forces. When both the donor atom, D, and the acceptor atom, A, are among the highly electronegative elements O, N, or F, hydrogen bonding occurs, as shown by the symbol D-H—-A.

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Answer:Co2O3

Explanation:

look it up

Answer:

Co2O3

Explanation:

when you write any formula you apply the criss-cross method where you write the charges of each substance

Co3 and O2

applying the criss-cross method( you switch the charges number, in this case you switch the 2 and the 3) :-

Co2 and O3

so Co2O3

Label for each of the compounds given in the question are: 1) Isomer, 2) Isomer, 3) Resonance Structure, 4) Isomer 5) Neither.

A group of two or more Lewis structures known as resonance structures describe the electronic bonding of a single polyatomic species, including fractional bonds and fractional charges. The number of electrons in resonance structures should be constant; do not add or subtract any electrons. (Count the electrons to determine their number). Every resonance structure complies with the standards for writing Lewis Structures. Structure hybridization must be constant. By cyclically moving elections, it is possible to depict the two resonance configurations of the benzene ring. Multiple resonance structures can be found in conjugated double bonds.

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Both I and II are true statements. The melting point of a solid is the temperature at which solid changes from a solid to a liquid.

Molecular solids are composed of molecules held together by weak intermolecular forces, such as dipole-dipole interactions, hydrogen bonds, and London forces.

These types of bonds are weaker than the ionic bonds that are present in ionic solids, which is why molecular solids have lower melting points than ionic solids.

In addition, the shape of the molecule will influence its melting point or boiling point. For example, molecules with a higher surface area will have a higher boiling point than molecules with a lower surface area.

This is due to the increased surface area leading to increased intermolecular forces and a higher boiling point.

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Both I and II are true statements. The melting point of a solid is the temperature at which solid changes from a solid to a liquid.

Molecular solids are composed of molecules held together by weak intermolecular forces, such as dipole-dipole interactions, hydrogen bonds, and London forces.

These types of bonds are weaker than the ionic bonds that are present in ionic solids, which is why molecular solids have lower melting points than ionic solids.

In addition, the shape of the molecule will influence its melting point or boiling point. For example, molecules with a higher surface area will have a higher boiling point than molecules with a lower surface area.

This is due to the increased surface area leading to increased intermolecular forces and a higher boiling point.

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Atomic number of Technetium is 43, Mass number is 99  and symbol is Tc ,hence symbol of isotope is  99 m43 Tc

General representation of atom is AZ X

Where ,  A is mass number , Z is atomic number and X is symbol of element. Atomic number of Technetium is 43, Mass number is 99  and symbol is Tc ,hence symbol of isotope is  99 m43 Tc ,Where m stands for meta stable.

A chemical element with the atomic number 43 and the symbol Tc is known as technetium. It is the lightest element whose radioactive isotopes are all present. Technetium is a synthetic element that is created in abundance. The most prevalent source of naturally occurring technetium is uranium and thorium ores, where it spontaneously fissions as a byproduct, while molybdenum ores produce it as a byproduct of neutron capture. This crystalline, silvery-gray transition metal in group 7 of the periodic table is sandwiched between rhenium and manganese, and its chemical characteristics fall somewhere in the middle of the two nearby elements. Only in traces, 99Tc is the most prevalent naturally occurring isotope.

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The diagrams of zonation in lakes and oceans with correct targets are :

a) fresh plant may be rooted here

b) littoral zone

c) limnetic zone

d) alternately dry and submerged

e) extends to edge of the continental shelf

f) generally low nutrient levels

g) light penetrates here

h) no photosynthesis occurs here

i) benthic zone

There are zones which divided the lakes. they are separated by the water from the top to bottom and the side to the side. that is named as : the littoral zone , the limnetic zone, the profundal zone , the benthic zone and the euphotic zone . the waters temperature will be affected the density. there are several zones in the ponds and the lakes. these are dived by the water column.

The limnology divides the lakes in the three types of zones ., that is the limnetic zone, the littoral zone and the benthic zone.

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the overall balanced cell reaction for the following voltaic cell

Hg2Cl2(s) + Cu(s) ® 2Hg(l) + Cu2+(aq) + 2Cl-(aq)

The cell reaction, also known as the total reaction, is the reaction that occurs within the cell as a whole and is expressed under the assumption that the right electrode is the cathode and that the spontaneous reaction is the one in which reduction takes place in the right-hand compartment.Galvanic, also known as Voltaic, and electrolytic cells are the two varieties of electrochemical cells. While electrolytic cells utilize non-spontaneous reactions and therefore need an external electron source, such as a DC battery or an AC power source, galvanic cells get their energy from spontaneous redox reactions.

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a) Partial pressures is Po2 = 8.13 atm,Pch4=3.94atm,Phe = 5.6 atm,B) Total pressure= 17.73 atm, C) mole fraction are Хо2 =0.46, xch4=0.22, xhe=0.32.

mole fraction are Хo2 =3.3/3.3+ 16 + 2.3,Хо2 =0.46, xch4=0.22, xhe=0.32. Xo2 = no2/no2 + nch4 + nhe, total pressure = 8.13+3.94+5.6=17.73 atm. The pressure applied by a solitary gas in a combination is did refer to as its partial pressure. Presuming we get a combination of ideal gas law, we could use ideal gas equation to resolve issues involving gases inside a mixture. Partial Pressure can be defined as if a canning jar filled with far more than one gas, evey gas enforces pressure. The pressure of any gas enclosed within in the container is regarded to as its partial pressure. The number of molecules of a special component in a mix divided by the total amount of moles in the given medium is symbolised by the mole fraction. It's a means of expressing a solution's concentration.

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The Nernst equation and the link between the standard cell potential and free energy can be used to determine the equilibrium constant of the redox process in an electrochemical cell.

The ratio of the product concentration to the reactant concentration is the equilibrium constant. a fixed value for a certain reaction at a specific temperature. The letter "c" denotes the expression of the equilibrium constant in terms of concentrations.

The standard cell potential, temperature, reaction quotient, and the cell potential of an electrochemical cell are all related by the Nernst equation. The Nernst equation can be used to determine the cell potentials of electrochemical cells even under unusual circumstances.

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Specific heat capacity of a substance is the amount of heat required to raise the temperature by one degree Celsius of one gram of a substance. Therefore, the total enthalpy of the given reaction is -781.44KJ.

Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances.

Mathematically,

q = n ×ΔH

where

q = amount of heat

n = no of moles

ΔH = enthalpy

n = w / M.M

w = given mass

M.M = molar mass

4CH[tex]_3[/tex]NH[tex]_2[/tex]+2H[tex]_2[/tex]O[tex]\rightarrow[/tex]3CH[tex]_4[/tex]+CO[tex]_2[/tex]+4NH[tex]_3[/tex]   ΔH=-138.8KJ

number of moles of methyl amine=175/31.06

                                                       =5.63moles

enthalpy for reaction of one mole of methyl amine=-138.8KJ

enthalpy for reaction of 5.63 mole of methyl amine=-138.8KJ×5.63

                                                                                     =-781.44KJ

Therefore, the total enthalpy of the given reaction is -781.44KJ.

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Mendeleev's periodic table includes all the elements that were known at the time.

The rows of the table, were called periods and each period contained eight elements that increased in atomic mass from left to right.

The columns of the table, called groups, contained elements with similar properties.

The special this about this table was, the gaps for predicted elements were left.

In this question, we are given with four statements and are asked to determine, which of the following statement is not true regarding Dmitri Mendeleev's periodic table.

Out of these four options, option number 1 is correct as the statement distribution of elements determined by electron configuration is not true regarding Mendeleev's periodic table.

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The chemical species in solution S2 Fe(s)+NiCl2(aq) → FeCl2(aq)+Ni(s)

Fe(s) ------> [tex]Fe^{2+}[/tex] + 2e                              (Oxidation)

[tex]Ni^{2+}[/tex] (aq) + 2e ------> Ni(s)                        (Reduction)

Galvanic Cell

Galvanic cells employ the electrical energy generated by the transport of electrons during a redox reaction to carry out practical electrical work. By separating the oxidation and reduction half-reactions and connecting them with a wire so that the electrons must pass through the wire, it is possible to gather the electron flow.

Write a balanced equation for the half-reaction that happens at the cathode of this cell = Ni (aq) + 2e ------> Ni(s)

Write a balanced equation for the half-reaction that happens at the anode of this cell = Fe(s) ------> [tex]Fe^{2+}[/tex] + 2e.

Of what substance is E1 made? = Fe

of what substance is E2 made? = Ni

What are the chemical species in solution S1? = [tex]Fe^{2+}[/tex]

What are the chemical species in solution S2? = [tex]Ni^{2+}[/tex]

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Based o the percentage masses of the elements, the empirical formula of epinephrine is C₉H₁₃O₃N.

The empirical formula of epinephrine is calculated below as follow:

Mole ratio of the elements are determined:

Carbon = 59% / 12

Carbon = 0.049 moles

Hydrogen = 7.1% / 1

Hydrogen = 0.07 moles

Oxygen = 26.2% / 16

Oxygen = 0.016

Nitrogen = 7.7% / 14

Nitrogen = 0.0055

The simplest whole-number ratio will be:

C = 0.049/0.0055

C = 9

Hydrogen = 0.07/0.0055

H = 13

Oxygen = 0.016/0.0055

Oxygen = 3

Nitrogen = 0.0055/0.0055

Nitrogen = 1

The empirical formula = C₉H₁₃O₃N

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Answer:CH

3

​

CH

2

​

CH

2

​

C≡C−CH

3

​

Explanation:

Answer:

2.02 L

Explanation:

The volume of a gas is directly proportional to its temperature, according to the ideal gas law. This means that as the temperature of a gas decreases, its volume will also decrease.

To determine the new volume of the balloon as the temperature drops from 311 K to 295 K, we can use the ideal gas law to calculate the new volume of the gas:

PV = nRT

Where:

P = the pressure of the gas (assuming it remains constant)

V = the new volume of the gas

n = the number of moles of the gas (assuming it remains constant)

R = the universal gas constant

T = the new temperature of the gas

Since we know the pressure, number of moles, and universal gas constant, we can solve for the new volume of the gas by substituting in the known values and solving for V:

V = nRT / P

Substituting in the values from the problem, we get:

V = (n * R * 295 K) / P

Since the number of moles and the universal gas constant are constants, we can simplify the equation to:

V = k / P

Where k is a constant equal to the product of the number of moles, the universal gas constant, and the original temperature of the gas (in this case, k = n * R * 311 K).

Since we know the value of k and the pressure of the gas, we can solve for the new volume of the gas by substituting in the known values:

V = (k / P)

= (n * R * 311 K) / P

= (2.07 L * 8.31 L * atm / mol * K * 311 K) / P

= 2.02 L

Therefore, the new volume of the balloon is approximately 2.02 L.