Temperature is usually expressed either in degrees Celsius (C) or Fahrenheit (F), and these are related by the formula C = 5/9 (F - 32). What is the rate of change of C with respect to F, in degrees Celsius per degree Fahrenheit? What is the rate of change of F with respect to C, in degrees Fahrenheit per degree Celsius?

The molarity of the sulfuric acid solution is 2.66 M. The molarity of the sulfuric acid solution can be calculated using the formula: Molarity (M) = moles of solute/volume of solution (in litres).

First, we need to convert the volume of the sulfuric acid solution from millilitres to litres. Since 1 litre is equal to 1000 millilitres, we have:

Volume of solution = 25.00 mL = 25.00 mL / 1000 mL/L = 0.02500 L

Next, we need to determine the moles of sodium hydroxide used in the titration. From the given information, we know that 0.0665 mol of NaOH was used.

Now, we can substitute the values into the formula:

Molarity (M) = 0.0665 mol / 0.02500 L = 2.66 M

To calculate the molarity of the sulfuric acid solution, we use the formula Molarity (M) = moles of solute/volume of solution (in litres). By converting the given volume from millilitres to litres, we find that the volume of the sulfuric acid solution is 0.02500 L. The number of moles of sodium hydroxide used in the titration is given as 0.0665 mol. Substituting these values into the formula, we calculate the molarity of the sulfuric acid solution as 2.66 M.

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The first two chemical equations are reversible while the other two are irreversible.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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Answer:

Al3+

Explanation:

aluminum has an atomic number of 13.. So when using the KLMN configuration.. 3 is in its outermost shell being M

The incorrect statement about the boiling points for the 6a hydrides is option (b): h2te has the second highest boiling point.

Among the 6A hydrides (H2O, H2S, H2Se, and H2Te), the boiling points follow a general trend based on intermolecular forces and molecular size. The boiling point tends to increase with increasing molecular size and the strength of intermolecular forces.

In this case, option (a) is correct as H2O has the largest boiling point due to the presence of strong hydrogen bonding between water molecules. Hydrogen bonding is a strong intermolecular force that results from the attraction between the partially positive hydrogen atom and the lone pairs of electrons on a highly electronegative atom (in this case, oxygen).

Option (c) is also correct as H2Se has the second highest boiling point among the given hydrides. Although not as strong as hydrogen bonding in H2O, H2Se still exhibits dipole-dipole interactions, which contribute to its higher boiling point compared to H2S.

Option (d) is correct as well. Generally, larger molecules with more electrons experience stronger van der Waals forces (including London dispersion forces), leading to higher boiling points.

Therefore, the incorrect statement is option (b) that claims H2Te has the second highest boiling point. In reality, H2Te has the lowest boiling point among the given hydrides due to its smaller size and weaker intermolecular forces.

The boiling points of the 6A hydrides (H2O, H2S, H2Se, and H2Te) follow the trends explained by intermolecular forces and molecular size. H2O has the highest boiling point due to hydrogen bonding, H2Se has the second highest boiling point, and H2Te has the lowest boiling point. The boiling point tends to increase with increasing molecular size and the strength of intermolecular forces.

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Answer: It can be written as: V = nRT/P. "P" is pressure, "V" is volume, n is the number of moles of a gas, "R" is the molar gas constant and "T" is temperature. Record the molar gas constant "R". R = 8.314472 J/mole x K.

Explanation: That the answer

the direction of polarity of each of the covalent bonds by placing the appropriate delta notation next to each end of the bond.

a water molecule, a typical illustration of polarity. There are two charges: a negative charge in the center (red shade) and a positive charge on either side (blue shade).

A bond's polarity results from the respective electronegativities of the constituent parts. Remember that an element's ability to draw electrons to itself when it is a component of a compound is known as electronegativity.

Chemical bond are formed when two or more atoms in a compound's molecule come contact and are tightly bound together. Covalent and ionic bond are the two different kinds of chemical bonding.

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Answer:

A. Japan

Explanation:

Answer:

japan xd

Explanation:

Answer:

m = 17

Explanation:

From the question we were given that

Triangle WZY is bisected by ZX; ZW = ZY

∠YXZ = (6m – 12)°

Based on the characteristics of the triangle, we see that triangle WYZ is an isosceles triangle (that is, triangle WXZ is equal to triangle YXZ)

<YXZ = <WXZ = 90°

Using ∠YXZ  = (6m – 12)°

We have:

(6m – 12)° =  90°

6m = 90 + 12 ⇒ 6m = 102

m = 102 ÷ 6 = 17

m = 17

We therefore see that m is equal to 17

Answer:

B: 17

Explanation:

Answer:

1. C

2. B

3. B

4. Graph b, option D

Explanation:

Answer:

11. chloroplasts and a cell wall

17. microbes

1. increased

2. Graph b

Explanation:

I put them in the order u asked the questions btw.

Answer:

A solid's particles are packed closely together. The forces between the particles are strong enough that the particles cannot move freely; they can only vibrate. As a result, a solid has a stable, definite shape and a definite volume. Solids can only change shape under force, as when broken or cut.

Answer:

Explanation:

Absorption of digested food takes place in the small intestine.

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plz mark as brainliest!!!!!

Answer:

Absorption of digested food takes place in the small intestine.

Explanation:

When Muhammad died, his followers carried on the new religion. Islam prospered and grew under the Caliph Abu-Bakr and those who followed him. What cities became hubs of Muslim thought and power? How did word of this new religion spread? Did it appeal to people outside the Arabian Peninsula?

Explanation:

The reaction is driven by the difference in reactivity between the two metals, with zinc being more reactive than lead.No is the answer.

The reaction between zinc and lead(II) acetate does occur, and it can be represented by the following balanced chemical equation:

Zn + Pb(CH3COO)2 → Zn(CH3COO)2 + Pb

In this reaction, zinc (Zn) reacts with lead(II) acetate (Pb(CH3COO)2) to produce zinc acetate (Zn(CH3COO)2) and lead (Pb).

Zinc displaces lead from the lead(II) acetate compound, resulting in the formation of zinc acetate and the precipitation of lead. This type of reaction is known as a displacement or single replacement reaction.

Zinc acetate is a white crystalline solid that is soluble in water. Lead, on the other hand, is a dense, bluish-gray metal. No is the answer.

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Answer:

Explanation:  Because they do not all move in the same direction, plates often directly collide or move laterally along each other, a tectonic environment that makes earthquakes frequent.

Answer:

as per given balanced equation one mole Zn produces 1mole Hydrogen

when reacted with excess acid.

So 3 moles Zn will give 3moles Hydrogen

Explanation:

According to the balanced chemical equation, one mole of Zn produces one mole of hydrogen . Therefore, 3.86 moles of Zn metal will produce 3.86 moles of hydrogen gas.

Mole ratio refers to the ratio of the number of moles of one substance in a chemical reaction to the number of moles of another substance in the same reaction.

It is derived from the balanced chemical equation for the reaction, which indicates the relative amounts of each substance involved in the reaction.

Mole ratio is important in stoichiometry, which is the study of the quantitative relationships between reactants and products in a chemical reaction.

The given chemical reaction is written as follows:

Zn + 2 HCl ⇒ ZnCl₂ + H₂

According to the balanced chemical equation, one mole of Zn produces one mole of hydrogen . Therefore, 3.86 moles of Zn metal will produce 3.86 moles of hydrogen gas.

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Answer: 0.188 kJ

Explanation: (0.46g C2H5Cl)(1 mol C2H5Cl/64.51g C2H5Cl)(26.4 kJ/1 mol C2H5Cl) = 0.188 kJ

I hope this helps!

The heat of vaporization is the quantity of heat which needs to be absorbed to vaporize a particular quantity of a liquid at a constant temperature. The kilojoules of heat absorbed is 0.177 kJ.

The molar heat of vaporization is defined as the energy which is required to vaporize one mole of a liquid. The units are usually kilojoules per mole, or kJ/mol. It is an important part of energy calculations which tells how much energy is needed to boil each mole of substance on hand.

Since the vaporization and condensation of a given substance are the exact opposite processes, the numerical value of the molar heat of vaporization is same as the numerical value of the molar heat of condensation.

0.46 g C₂H₅Cl × 1 mol C₂H₅Cl / 64 g C₂H₅Cl × 24.7 kJ / 1 mol = 0.177 kJ

Thus the kilojoules of heat absorbed is 0.177 kJ.

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The number of the moles are contained in the 15.6 g of the NH₄Cl is the 0.29 mol.

The mass of the NH₄Cl = 15.6 g

The molar mass of the = 53.49 g/mol

The number moles of the  NH₄Cl is as follows :

The number of the moles = mass / molar mass

Where

The mass = 15.6 g

The molar mass = 53.49 g/mol

The number of the moles = 15.6 / 53.49

The number of the moles = 0.29 mol

Thus, the number of the moles of the NH₄Cl is 0.29 mol with the mass of the 15.6 g.

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Answer:

5

Explanation:

chemical formulas show what atoms are in a molecule.  In this case there is 1 hydrogen (H), 1 chlorine (Cl), and 3 oxygens (O).  The 3 behind the oxygen is a subscript and tells us that there are 3 oxygen atoms.

Another example is H2O which as 3 atoms. 2 hydrogens (H) and 1 oxygen (O).  This formula has a subscript 2 behind the hydrogen showing that there are 2 hydrogens.

Answer:

E conduct electricity when melted

Explanation:

They can not produce electricity until dissolved/ melted in water

Answer:

It's a metaphor. It's comparing Jordan and their emotions to a tornado

The statement that is false regarding the chemical grooming of pyruvate is "each pyruvate molecule has a CO2 added and then joins with an NADH.

Pyruvate is the end product of glycolysis that further undergoes chemical grooming in the presence of oxygen to produce ATP. The complete oxidation of glucose produces a total of 36-38 ATPs per molecule.

Pyruvate is oxidized to produce Acetyl-CoA. During this process, the carboxyl group of pyruvate is removed and given off as CO2. This is known as decarboxylation.

The remaining 2-carbon molecule is then oxidized by the removal of electrons by the NAD+ which is reduced to NADH. This is called oxidative decarboxylation, and its purpose is to prepare the substrate for energy production.

The correct statement regarding the chemical grooming of pyruvate is, "Each pyruvate molecule loses a CO2 molecule and then joins with a coenzyme A to form acetyl-CoA, producing an NADH molecule."

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Answer:

They should test their answer over again. Same thing with math.

Explanation:

If they are doing an experiment, do the experiment over and reach out to other scientits to validate your results

The type of meeting that typically involves a speaker with attendees taking notes or referring to other materials while sitting at tables or other furniture that allows them to write easily is a lecture or a seminar.

In a lecture, the speaker presents information on a particular topic to an audience, often with the intention of imparting knowledge or educating the attendees. The attendees may take notes, ask questions, or participate in discussion after the lecture.

In a seminar, a more interactive format is used where the speaker presents information and then the attendees are expected to actively participate in discussions, group work, or other activities related to the topic. Again, attendees may take notes, but they may also be called upon to actively contribute to the discussion.

Both lectures and seminars often take place in an educational or professional setting, such as a university or a workplace. The attendees may be students, employees, or professionals seeking continuing education or professional development opportunities.

Answer:Yes. Adding or losing neutrons will change the atomic mass without forming a different element.

Explanation: Brainly

Answer:

Its answer A

Explanation:

I just took the test

Answer:

A:

reduction half reaction: HNO3-> NO

oxidation half reaction S->H2SO4

Explanation:

In a mixture of noble gases, the gas that will have the greatest partial pressure is Xenon. Mole fraction can be defined as a unit of concentration used in chemistry to measure the amount of one substance in a mixture of substances.

It is equal to the number of moles of a solute divided by the total number of moles of the solution. Therefore, given that in a mixture of noble gases, neon has a mole fraction of 0.5, argon has a mole fraction of 0.3, and xenon has a mole fraction of 0.2. The partial pressure of each gas can be calculated by using Dalton's Law of partial pressures which states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of each gas in the mixture.

Partial pressure of each gas can be calculated as follows: PNeon = (0.5) x Ptotal PArgon = (0.3) x Ptotal PXenon = (0.2) x Ptotal, where Ptotal is the total pressure of the mixture. Now, we can see that the partial pressure of Xenon will be the greatest because it has the highest mole fraction and will therefore contribute the most to the total pressure.

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The mass of water, H₂O produced from the reaction is 72.06 g

We'll begin by calculating the mass of NH₄NO₃ that reacted and the mass of H₂O produced from the balanced equation.

NH₄NO₃ —> N₂O + 2H₂O

Molar mass of NH₄NO₃ = 80.03 g/mol

Mass of NH₄NO₃ from the balanced equation = 1 × 80.03 = 80.03 g

Molar mass of H₂O = 18.01 g/mol

Mass of H₂O from the balanced equation = 2 × 18.01 = 36.02 g

From the balanced equation above,

80.03 g of NH₄NO₃ reacted to produce 36.02 g of H₂O

Finally, we shall determine the mass of H₂O produced by the reaction of 160.1 g of NH₄NO₃.

From the balanced equation above,

80.03 g of NH₄NO₃ reacted to produce 36.02 g of H₂O.

Therefore,

160.1 g of NH₄NO₃ will react to produce = (160.1 × 36.02) / 80.03 = 72.06 g of H₂O.

Thus, the mass of water, H₂O produced from the reaction is 72.06 g

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Answer: penlalalalaooooaaaaaaaaaaa

Explanation: pen

Answer:

31

Explanation:

Given parameters:

Mass number  = 66

 Number of electrons  = 35

Unknown:

Number of electrons

Solution:

In an atom, the number of protons and electrons are the same. In ions, there is a difference between the two numbers.

For this problem, once we can find the number of protons, it is therefore the number of electrons.

 Mass number = number of protons + number of neutrons

  Insert the parameters and solve;

     66  = number of protons + 35

    Number of protons  = 66  - 35  = 31

So the number of electrons is 31