Draw the structure of 5-tert-butyl-2-methyl-3-octyne.

Answer:

50.0 °C

Explanation:

If all other variables are being held constant, you can find the temperature using Guy-Lussac's Law. The equation looks like this:

P₁ / T₁ = P₂ / T₂

In this equation, "P₁" and "T₁" represent the initial pressure and temperature. "P₂" and "T₂" represent the final pressure and temperature. You can find the missing temperature (T₂) by plugging the given values into the equation and simplifying.

P₁ = 405 pKa                    P₂ = 1013 pKa

T₁ = 20 °C                         T₂ = ? °C

P₁ / T₁ = P₂ / T₂                                              <----- Guy-Lussac's Law

405 pKa / 20 °C = 1013 pKa / T₂                  <----- Insert values

20.25 = 1013 pKa / T₂                                   <----- Divide 20 from 405

20.25 x T₂ = 1013 pKa                                  <----- Multiply both sides by T₂

T₂ = 50.0 °C                                                  <----- Divide both sides by 20.25

Organic chemistry is defined as the study of compounds containing carbon element .

In an organic chemistry, we study about structure, properties , composition, reaction and preparation of carbon congaing compounds.The organic compound is contains mainly carbon and hydrogen and other elements. The other elements in organic compounds are nitrogen, oxygen,sulfur, phosphorus, halogen and etc.

Organic chemistry is also refer as carbon chemistry .The carbon element is important because it is center elements of living organism and it is very basic for all live in the earth. By studying about organic chemistry , scientist get to know about human body and living organism.

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Answer:

B.) Na₂SO₄

Explanation:

Covalent bonds are bonds which involve electrons being shared between two atoms. These bonds only occur between nonmetals.

Ionic bonds are bonds which involve electrons being given or taken by two atoms. These bonds form between a metal and a nonmetal.

NH₃ contains nitrogen and hydrogen, two nonmetals. Therefore, this molecule only contains covalent bonds.

Na₂SO₄ has both covalent and ionic bonds. The covalent bonds are found within the polyatomic ion, SO₄²⁻. Sulfur and oxygen are both nonmetals, thus covalently combining. The ionic bond forms between the  Na⁺ and SO₄²⁻. Sodium (Na) is a metal which wishes to give up electrons to have a complete octet. SO₄²⁻ serves as the anion which it bonds with.

CH₃COOH contains hydrogen, carbon, and oxygen. All of these are nonmetals, thus the only bonds formed are covalent.

NaCl contains sodium, a metal, and chlorine, a nonmetal. Therefore, this compound is held together by an ionic bond.

Explanation:

However if the two atoms have different affinities for electrons, or electronegativities, then the electrons are more likely to be found closer to the more electronegative atom. In this case, the more electronegative atom gains a partial negative charge, while the less electronegative atom becomes partially positive.

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Potassium can be a component of the cream.

An element's presence can be determined using a flame test. The potassium in cream of tartar is what gives it its white-purple color.

Low ionization enthalpy elements allow the flame to display color. Due to low ionization enthalpy, when an element is heated, its valence electrons are quickly excited to higher orbits and emit light as they return to their original orbit. Salts of potassium emit a white-purple color when ignited. The cream of tartar's chemical formula is KC₄H₅O₆.

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The higher temperature will be:

As the temperature is increased from 22°C to a higher temperature, the rate constant increases by a factor of 7.00. The final temperature will be 271.74K.

What is the activation energy?

Activation energy is defined as the extra energy provided required to activate the molecules to start reacting and forming intermediate and later product.

Arrhenius equations given the relation rate constant and activation energy.

[tex]LnK=Ae^{-\frac{E_a}{RT}\\\\[/tex]

Where,

K= Rate constant

A= Pre exponential factor

[tex]E_a=[/tex] Activation energy

When two rate constants are given [tex]K_1\,[/tex] and [tex]\,K_2[/tex]

[tex]ln\frac{K_2}{K_1}=\frac{E_a}{R}(\frac{1}{T_2}-\frac{1}{T_1})[/tex]

Given,

[tex]T_1[/tex] = 22°C = 295K

Rate constant[tex](K_1)[/tex] increases by a factor of 7,i.e, [tex]K_2=7K_1[/tex]

[tex]E_a[/tex]= 54 kJ/mole = 54000 J/mole

R= 8.314 [tex]J\,mol^{-1}K^{-1}[/tex]

Putting the values,

[tex]ln\frac{K_2}{K_1}=\frac{E_a}{R}(\frac{1}{T_2}-\frac{1}{T_1})[/tex]

ln 7 x 8.31454000 = (1/[tex]T_{2}\\[/tex] - 1/295)

0.299 x [tex]10^{-3}[/tex] + 1/295 = 1/[tex]T_{2}[/tex]

0.00368 = 1/[tex]T_{2}[/tex]

[tex]T_{2}[/tex] = 1/0.00368

[tex]T_{2}[/tex] = 271.74 K

Therefore,

The increase in temperature will change from 295K to 271.74K.

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Despite the fact that viruses and ambient bacteria found indoors could both be mesophiles, at 37 degrees Celsius, the temperature of the human body, pathogens would develop more quickly than environmental strains.

A virus would be an infectious submicroscopic creature that only reproduces inside of live cells.

Although bacteria may survive at higher and lower temperatures than humans, they thrive in an environment which really is warm, wet, protein-rich, and pH neutral as well as slightly acidic.

Therefore, Despite the fact that viruses and ambient bacteria found indoors could both be mesophiles, at 37 degrees Celsius, the temperature of the human body, pathogens would develop more quickly than environmental strains.

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If your client receives a letter from SilverScript requesting proof of Creditable Coverage, they can ignore the letter is a false statement

Creditable coverage is known to be a form of an health insurance, that consist of prescription drug and also other kinds of health benefit plan that is known to meets  the minimum amount of qualifications.

Note that  the types of creditable coverage plans are group and individual health plans, student health plans,  and others.

It is not right to ignore any letter sent to you concerning the case above as it may be vital and as such, the statement of If your client receives a letter from SilverScript requesting proof of Creditable Coverage, and the client has already submitted proof of creditable coverage with the enrollment application, they can ignore the letter is a wrong/false statement.

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Use of thermostat is the most effective way to keep the reaction at a control temperature.

The reaction takes place in a thermostat is the most effective way to keep the reaction at a controlled and steady temperature because thermostat regulates the temperature of that solution which is placed in it. If the temperature goes higher then the extra heat is released from the system.

So we can conclude that use of thermostat is the most effective way to keep the reaction at a control temperature.

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Answer:

A

Explanation:

looking at both equity

and mortgage bond fixtures

I would rather say secured bond fit into not being backed by any specific collateral

Answer:

The three-point test

Explanation:

The three-point test refers to a ground test utilizing an auxiliary current electrode and an auxiliary potential electrode.

Answer: the answer is not c

Explanation: I don't know the correct answer, but I took the test and I know it is not c

Answer:

b is the answer

Explanation:

bc i said so

Answer:

larger the intermolecular forces in a compound, the slower its evaporation rate

Explanation:

socratic

Answer:

The removal of one or more electrons from a neutral atom results in a cation.

Explanation:

When you remove electrons from a neutral atom, the atom becomes more positive. Electrons have a negative charge and the protons inside of the nucleus have a positive charge. When electrons are removed, the positive charges from the protons outweigh the negative charges. This results in a positively charged atom, called a cation.

NaBrO₃ (sodium bromate) is an ionic compound. It consists of a metal (sodium, Na) and a polyatomic ion (bromate, BrO₃⁻).

Ionic compounds are compounds composed of positive and negative ions held together by electrostatic forces. They are formed through the transfer of electrons between atoms, resulting in the formation of positively charged cations and negatively charged anions.

In an ionic compound, the cations are typically metal ions, while the anions are usually nonmetal ions or polyatomic ions. The transfer of electrons occurs from the metal atom(s) to the nonmetal atom(s), resulting in the formation of a crystal lattice structure.

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Correct option:

Entropy is used to calculate information gain.

What is entropy?

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Answer:

correct answer is sodium

Explanation:

element is most active in this question is sodium please make me Brilliant to this correct answer

Answer:

A.) 0.43 g

Explanation:

Before you can calculate the mass, you need to find the moles. You can do this by using Avogadro's Law:

V₁ / n₁ = V₂ / n₂

In this equation, "V₁" and "n₁" represent the first balloon's volume and mole value. "V₂" and "n₂" represent the second balloon's volume and mole value. Since you are searching for the first balloon's mole value, you can plug the other values into the equation and simplify to find n₁.

V₁ = 1.54 L                         V₂ = 0.72 L

n₁ = ? moles                      n₂ = 0.100 moles

V₁ / n₁ = V₂ / n₂                                               <----- Avogadro's Law

1.54 L / n₁ = 0.72 L / 0.100 moles                 <----- Insert values

1.54 L / n₁ = 7.2                                              <----- Simplify right side

1.54 L = 7.2 x n₁                                              <----- Multiply both sides by n₁

0.214 = n₁                                                       <----- Divide both sides by 7.2

Now, you can find the mass using the molar mass of the gas. Remember, hydrogen exists as a diatomic molecule.

Atomic Mass (H₂): 2(1.008 g/mol)

Molar Mass (H₂): 2.016 g/mol

0.214 moles He            2.016 g
--------------------------  x  -----------------  =  0.43 g H₂
                                       1 mole

For the mentioned reaction, the balanced chemical equation is:

KBr (aq) + AgNO3 (s) → KNO3 (aq) + AgBr(s)

The number written in front of the ion, atoms, and molecules in a chemical reaction so that each of the elements on both the sides of reactants and products of the equation gets balanced is known as the stoichiometric coefficient.

From the mentioned balanced equation, the stoichiometric coefficient before KBr is 1, AgNO3 is 1, KNO3 is 1, as well as before AgBr is also 1. Thus, it is clear that 1 mole of potassium bromide reacts with 1 mole of silver nitrate to produce 1 mole of potassium nitrate and 1 mole of silver bromide.

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Answer:

506.81J

Explanation:

H = MC(T1 - T0)

H = 5 × 0.897 × (419 - 306)

H = 5 × 0.897 × 113

H = 506.81 J

As per specific heat of aluminium ,506.81 J of energy is gained  by the sample.

Specific heat capacity is defined as the amount of energy required to raise the temperature  of one gram of substance by one degree Celsius. It has units of calories or joules per gram per degree Celsius.

It varies with temperature  and is different for each state of  matter. Water in the liquid form has the highest specific heat capacity among all common substances .Specific heat capacity of a substance is infinite as it undergoes phase transition ,it is highest for gases and can rise if the gas is allowed to expand.

It is given by the formula ,

Q=mcΔT

For the given example, Q=energy

m=mass=5 g, C=0.897 J/g.K

T₂=419 K

T₁=306 K

substituting in the formula ,Q=5×0.897(419-306)=506.81 J.

Thus, 506.81 J of energy is required.

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Answer:

Can you be more clear with your question

Answer: b

Explanation:

A  positive correlation does not necessarily indicate a causal link, and a negative correlation does not necessarily indicate a causal link; option A.

A correlation is a relationship that exists between two variables.

A positive correlation indicates a direct relationship while a negative correlation shows an inverse relationship.

However, a positive correlation does not necessarily indicate a causal link, and a negative correlation does not necessarily indicate a causal link.

In conclusion, a correlation indicates a relationship between two values.

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A reasonable explanation for the disappearance of these fish is the high acidity affecting fish metabolism.

pH is a very important parameter to consider, as it has a direct effect on the metabolism and physiological processes of fish and other aquatic organisms. The pH tolerance range for fish is between 4.0 and 9.0, while the ideal index is between 6.5 and 8.0

With this information, we can conclude that The various fish species differ in terms of the best pH. The pH range between 6.5 – 9.0 is generally recommended for freshwater species. For marine species, the most recommended PH range is between 7.8-8.4.

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The balanced molecular equation for this reaction is

2HCl(aq) + Ba(OH)2(aq) ===> BaCl2(aq) + 2H2O(l).

The neutralization of hydrochloric acid and barium hydroxide.

Molecular formula for hydrochloric acid is HCl and barium hydroxide is Ba(OH)2.

Hydrochloric acid and barium hydroxide is aqueous in nature.

HCl have one H+ ion and barium hydroxide has two hydroxide (OH) group.

So, it will take two HCl to neutralize one Ba(OH)2.

Hence, equation for this reaction is

2HCl(aq) + Ba(OH)2(aq) ===> BaCl2(aq) + 2H2O(l).

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Pure liquids and solids at the equilibrium stage:

Pure solids and pure liquids are not included in expressions for the equilibrium constant of heterogeneous equilibria since their concentrations are constant across time. Therefore, including it in our equilibrium expression is not significant.

Equilibrium expression:

When a certain chemical reaction is in equilibrium, the rates of the forward and backward reactions are equal, which means that there is no net change in the concentrations of the reactants and products and that the reaction mixture's composition does not change.

The concentration of solid and liquid:

Solid or liquid concentration,

= No. of Moles/ Volume in L

= Mass/(Volume × molar mass)

= Density/ Molar mass

Pure solids and liquids have constant densities and molar masses at a constant temperature.

Because of this, they have constant molar concentrations, which means that they are not considered in the equilibrium constant for a heterogeneous reaction.

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According to the Planck-Einstein relation, the energy of a photon emitted with a wavelength of 448 nm is 4.44 × 10⁻¹⁹ J.

A photon is a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.

A photon is emitted with a wavelength (λ) of 448 nm. Given the speed of light (c) is 3.00 × 10⁸ m/s, we can calculate the frequency (ν) of the photon using the following expression.

ν = c/λ

ν = (3.00 × 10⁸ m/s ) / (4.48 × 10⁻⁷ m) = 6.70 × 10¹⁴ s⁻¹

We will use the Planck-Einstein relation, being Planck's constant h = 6.63 × 10⁻³⁴ J.s.

E = h × ν

E = (6.63 × 10⁻³⁴ J.s) × (6.70 × 10¹⁴ s⁻¹) = 4.44 × 10⁻¹⁹ J

According to the Planck-Einstein relation, the energy of a photon emitted with a wavelength of 448 nm is 4.44 × 10⁻¹⁹ J.

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An example of investigating an intensive property is determining if a rock is magnetic. That is option C.

Intensive property is defined as the property of a substance that doesn't rely on the amount of the substance.

Examples of Intensive property include:

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The concentration of the acetic acid before titration is 0.128M

For weak acid and strong base titration-

Moles of acetic acid =  moles of NaOH

Given concentration of NaOH = 0.1067M

Volume of NaOH = 30.07ml = 0.03007L

Using the formula, Concentration = Moles/Volume

Moles of NaOH = concentration X volume = 0.1067 X 0.03007 = 0.0032

Therefore, moles of acetic acid  = 0.0032mole

Using the formula, Concentration = Moles/Volume

Concentration of acetic acid =  0.0032/0.025 = 0.128M

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