What words can you spell isotherm periodic table

Answers

Answer 1

Answer:   ?????????????????????

Explanation:


Related Questions

How many grams of Chromium Chloride III are needed to produce 75.0 of Silver Chloride?
CrCl3 + AgNO3 --> Cr(NO3) +AgCL​

Answers

Answer: 27.61g

Explanation:

First thing first, generate a balanced equation for the reaction as illustrated below:

CrCl3 + 3AgNO3 —> Cr(NO3)3 + 3AgCl

Next, we'll find the molar mass of CrCl3 and AgCl:

Molar Mass of CrCl3 = 52 + (3x35.5)

= 158.5g/mol

Molar Mass of AgCl = 108 + 35.5 = 143.5g/mol

But from the balanced equation, 3 mol of AgCl was produced. Therefore, the mass conc. of AgCl from the equation = 3 x 143.5 = 430.5g.

From the equation,

158.5g of CrCl3 produced 430.5g of AgCl.

Therefore, Xg of CrCl3 will produce 75g of AgCl i.e

Xg of CrCl3 = (158.5x75) / 430.5 =27.61g.

So, 27.61g of CrCl3 will produce 75g of AgCl

Final answer:

The problem requires balancing the chemical equation and performing stoichiometry calculations to find how many grams of CrCl₃ are required to produce 75.0 grams of AgCl. Additionally, the use of Ksp allows for the prediction of precipitation conditions in solutions.

Explanation:

The student's question involves a stoichiometry calculation and the solubility product concept, both of which are key topics in chemistry. To find the grams of Chromium Chloride III (CrCl₃) needed to produce 75.0 grams of Silver Chloride (AgCl), one needs to follow these steps:

Balance the chemical equation, although the provided equation lacks coefficients and products for Chromium Nitrate. Assuming it's Cr(NO₃)₃, it should be balanced as CrCl₃ + 3AgNO₃ -> Cr(NO₃)₃ + 3AgCl.Calculate the molar mass of AgCl and CrCl₃.Use stoichiometry to convert from grams of AgCl to moles, then use the mole ratio from the balanced equation to find moles of CrCl₃ needed.Finally, multiply the moles of CrCl₃ by its molar mass to find the grams required.

As for the solubility product (Ksp) questions, they are based on the solubility equilibrium and precipitation. For instance, the Ksp for silver chloride (AgCl) is calculated using the concentration of silver ions [Ag⁺] and chloride ions [Cl⁻] in the solution at equilibrium. If given the Ksp and one ion concentration, you can determine the concentration at which precipitation occurs by rearranging the Ksp expression.

i need helpppp! i don’t understand this

Answers

Answer: a. 410 K

b. 296 K

c. 394 K

d. -180 °C

e. 224°C

f. -3 °C

Explanation:

For °C to K : use °C + 273 = K

For K to °C : use °C = K - 273

5. What is the temperature -34°C expressed in kelvins?
A. 207 K
B. 339 K
C. 239
D. 139 K

Answers

Answer:

C. 239

Explanation:

-34 + 273.15 = 239.15

The equation to convert celsius into kelvin is C = K - 273.15

How does one determine the number of core electrons an atom has?
O
A. Subtract the atomic number from the atomic mass.
O
B. Subtract the group number from the atomic number.
O
C. Add the atomic number and the number of valence electrons.
O
D. Add the group number and the period number.

Answers

The one to determine the number of core electrons an atom has To subtract the group number from the atomic number. Therefore, option B is correct.

What is an atomic number ?

The charge number of an atomic nucleus is the chemical element's atomic number, also known as nuclear charge number. This is the number of protons present in the nucleus of each atom of that element, or the proton number, for conventional nuclei. Ordinary chemical elements can be uniquely identified by their atomic number.

The number of protons in an atom is the atomic number. It is sometimes referred to as the proton number for this reason. The capital letter Z is used to represent it in calculations. The word zahl, which meaning number of numerals in German, is where the letter Z originates.

The atomic number, or number of protons, is displayed in the upper left. The element's letter sign appears in the centre.

Thus, option B is correct.

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How many silver atoms are there in 3.78g of silver?

Answers

Answer:

2.11 * 10²² atoms of silver

Explanation:

There will be 2.11 × 10^22 atoms of silver in 3.78 g of silver.

What is molar mass?

The term "mole" refers to a unit of measurement used to describe the number of atoms, molecules, ions, or formula units in a given chemical compound. It is comparable to other counting units like a pair (2) and a dozen (12). Avogadro's number (6.02214076 ×10²³ mol) of molecules or formula units make up one mole of a substance.

The mass of 1 mole of a chemical and the number of grams per mole are determined by the compound's molar mass. In other terms, the molar mass is the sum of the masses of all the atoms that make up a mole of a certain molecule, expressed in grams. As a result, the molar mass is measured in grams/mole.

Therefore in this case,

3.78 g Ag = [tex]\frac{1 mol Ag}{ 107.8682}[/tex] ×/[tex]\frac{6.022 * 10^{23} atoms of Ag}{1 mol Ag }[/tex]

= 2.11 × 10²²

Therefore, 2.11 × 10²² atoms in this mass of silver.

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Which process releases the most heat?
- the condensation of 10 g of gaseous water
- the melting of 10 g of ice
- the freezing of 10 g of liquid water
- the boiling of 10 g of liquid water

Answers

Answer:

the boiling of 10g of liquid water

Answer:

The correct option is "the condensation of 10 g of gaseous water"

Explanation:

In condensation,gaseous stats is changes into  liquid. So it will release more energy to convert from one state to another state.So it is exothermic process in which heat is released.

Which statements best describe the process of radioactive decay? Check all that apply.

Answers

An unstable isotope changes until it reaches a different element that is stable.

An unstable isotope changes until it reaches a different isotope of the same element that is stable.

Explanation:

Radioactive decay is the breakdown of an unstable (heavier) atom into stable (lighter) atom. It mainly involves the loss of atomic nucleic particles such as protons and neutrons. If protons are lost in the decay, then the element of the atom will change. However, if only a few neutrons are lost, the element may remain the same but the products will be a more stable isotope of the same element with fewer neutrons (hence also mass number)

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The statements that best describe the process of radioactive decay are:

An unstable isotope changes until it reaches a different element that is stable.An unstable isotope changes until it reaches a different isotope of the same element that is stable.

The statements that best describe the process of radioactive decay are:

1. An unstable isotope changes until it reaches a different element that is stable.

  - This statement is correct. Radioactive decay involves the transformation of an unstable isotope into a different element, which can be stable.

2. An unstable isotope changes until it reaches a different isotope of the same element that is unstable.

  - This statement is also correct. In some cases, the process of radioactive decay can lead to the formation of a different isotope of the same element, and this isotope may remain unstable.

The other statements are not accurate:

- An unstable isotope changes until it reaches a different isotope of the same element that is unstable.

- An unstable isotope changing into a different element that is unstable is not a common outcome of radioactive decay.

- A stable isotope does not change into a different element through radioactive decay.

In summary, radioactive decay involves the transformation of unstable isotopes into different elements or isotopes, which can be either stable or unstable.

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The probable question may be:

Which statements best describe the process of radioactive decay? Check all that apply.

An unstable isotope changes until it reaches a different element that is unstable.

An unstable isotope changes until it reaches a different element that is stable.

A stable isotope changes until it reaches a different element that is unstable.

A stable isotope changes until it reaches a different element that is stable.

An unstable isotope changes until it reaches a different isotope of the same element that is unstable.

An unstable isotope changes until it reaches a different isotope of the same element that is stable.

How is the electronegativity trend related to the first ionization energy trend?
O
A. Electronegativity decreases as you move up the table, whereas
ionization energy increases.
B. Electronegativity and first ionization energy both decrease as you
move up the periodic table.
O
C. Electronegativity increases as you move up the table, whereas
ionization energy decreases.
O
D. Electronegativity and first ionization energy both increase as you
move up the periodic table.

Answers

D. Electronegativity and first ionization energy both increase as you

move up the periodic table.

There are various kind of elements that are present in periodic table. Some elements are harmful, some are radioactive, some are noble gases. Therefore, the correct option is option D that is Electronegativity and first ionization energy both increase as you move up the periodic table.

What is periodic table?

Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.

Periodic table help a scientist to know what are the different types of elements are present in periodic table so that they can discover the new elements that are not being discovered yet. Electronegativity and first ionization energy both increase as you move up the periodic table.

Therefore, the correct option is option D.

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PLEASE ANSWER

How are wavelength and frequency related?

A. If the distance between the crests of the waves decrease, the frequency decreases.
B. If the speed between the crests of the waves decreases, the frequency increases.
C. If the speed between the crests of the waves increases, the frequency increases.
D. If the distance between the crests of the waves increase, the frequency decreases.

Answers

Answer:

D. If the distance between the crests of the waves increase, the frequency decreases.

Explanation:

Wavelength is the distance between two successive crests and troughs while frequency is the number of complete cycle per seconds

Velocity = Frequency × wavelength

Frequency and wavelength are inversely proportion

Final answer:

Wavelength and frequency are inversely related. As the distance between the crests of the waves increases (wavelength increases), the frequency decreases. The correct answer is D.

Explanation:

The question asks how wavelength and frequency are related. The relationship between wavelength and frequency is an important concept in physics, particularly in the study of waves. Wavelength and frequency are inversely related, meaning as one increases, the other decreases. This inverse relationship is explained by the equation c = λν, where c is the speed of the wave, λ (lambda) is the wavelength, and ν (nu) is the frequency. Therefore, if the distance between the crests of the waves increases, which means the wavelength increases, the frequency of the waves decreases since the number of waves passing a given point per unit time becomes fewer.

Given this explanation, the correct answer to the question is: D. If the distance between the crests of the waves increases, the frequency decreases. This is because the increase in distance between crests (increase in wavelength) leads to a reduction in how many waves can pass a given point in a specific amount of time (decrease in frequency).

1gallon=3.79 liters, The gas tank of a car holds 15 gallons.if you were traveling in Europe how many liters if petrol would you need to fill the tank?​

Answers

for an approximate result, multiply the volume value by 3.785
Answer ≈ 56.7812
So what you need to do is take 15 gallons and convert it into liters by multiplying by a ratio, which is given (1 gallon = 3.79 liters; 1g : 3.79L). The way you do this is by making sure the equation has a ratio that has the gallons on the bottom so that when you calculate how many liters there are, the gallons cancel each other out, leaving you with liters.
As shown in the picture:

10.222 g sample of hydrated barium iodide (Bal) is heated to dry off the water of
crystallization. The dry sample has a mass of 9.520 g. What is the formula of the
hydrate​

Answers

Answer:

                     BaI₂.5H₂O

Explanation:

Given Data:

                   Mass of Hydrated BaI₂ = 10.222 g

                   Mass of dried BaI₂ = 9.520 g

                   Mass of Water removed  =  10.222-9.520 = 0.702 g

                   M.Mass of BaI₂ = 391.136 g/mol

                   M.Mass of Water  =  18.02 g/mol

Now,

         Calculate moles of dried BaI₂ as,

Moles  =  Mass / M.Mass

Moles  =  9.520 g / 391.136 g/mol

Moles  =  0.02434 moles

         Calculate moles of Water as,

Moles  =  Mass / M.Mass

Moles  =  0.702 g / 18.02 g/mol

Moles  =  0.0389 moles

Then,    

          Calculate Mole ratio of BaI₂ and water as,

              = 0.02434 moles BaI₂ / 0.0389 moles Water

              =  0.625

Now,

We will convert this mole ratio to a whole number by multiplying it with a nearest integer,

             =  0.625 × 8

             =  5

Hence, this means for every one mole of BaI there are 5 moles of Water.

Result:

                                             BaI₂.5H₂O

How much energy is required to heat a frozen can of juice (360 grams- mostly water) from 0 degrees Celsius ( the temperature of an overcooled refrigerator) to 110 degrees ( the highest practical temperature within a microwave oven)?

Answers

Answer:

1,100,160J or 262.94 kcal

Explanation:

The juice is frozen at 0 degrees Celsius and I assume that it will become gas at 100 degrees Celsius. So we change the form of the water from solid to liquid, then to gas. That means we have to find out how much heat needed to change water form too, not only the heat needed to increase its temperature.

The latent heat of water is 4.2J/g °C while the heat of fusion is 334 J/g and the heat of vaporization is 2260 J/g. The energy needed will be:

360g * 4.2J/g °C * (110-0°C ) + 360g * 334 J/g + 360g * 2260 /g = 1,100,160J or 262.94 kcal.

Final answer:

The energy required to heat the frozen can of juice from 0 degrees Celsius to 110 degrees Celsius is 163.08 kJ.

Explanation:

To calculate the amount of energy required to heat the frozen can of juice, we need to consider three steps:

Heating the can from 0 degrees Celsius to its melting point, which is 0 degrees Celsius

Melting the ice at 0 degrees Celsius

Heating the water from 0 degrees Celsius to 110 degrees Celsius

The energy required for each step can be calculated using the formula Q = mcΔT, where Q is the energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

For the first step, Q = (360g)(4.18 J/g°C)(0 - 0) = 0 J.

For the second step, Q = (360g)(333.55 J/g)(0 - 0) = 0 J.

For the third step, Q = (360g)(4.18 J/g°C)(110 - 0) = 163,080 J = 163.08 kJ.

Adding up the energies from each step, the total energy required to heat the frozen can of juice is 163.08 kJ.

Aluminum reacts with sulfur to form aluminum sulfide according to the following reaction:

2 Al (s) + 3 S (s) → Al2S3 (s)

How many moles of sulfur will be need to produce 6 moles of aluminum sulfide?

a.
2 mol S

b.
3 mol S

c.
12 mol S

d.
15 mol S

e.
18 mol S

Answers

Answer:

Explanation:

                    x mol         6 mol

2 Al (s) +    3 S (s) →       Al2S3 (s)

                 3 mol          1 mol

6 mol Al2S3  x 3 mol S/ 1 mol  Al2S3 = 18 mol S

calculate the [H3O+] of solutions a and b; calculate the [OH-] solutions c and d.
9. pH = 2.76
10. pH = 3.65
11. pOH = 3.65
12. POH = 6.87​

Answers

Answer:

I got the answers but it won't let me post it correctly on here....

Explanation:

9.) 10-2.76 =0.0174 [H30+]= 1.74*10-3 M

10.)10-3.65=0.00224  [H3O+] =2.24*10-2 M

11.)10-3.65=0.00224 [OH-]= 2.224*10-4M

12.)10-6.87=0.00000135  [OH-]= 1.35*10-7M

Final answer:

The [H3O+] and [OH-] of solutions a, b, c, and d are calculated using the formulas for pH and pOH. The [H3O+] for solutions a and b come out to be 1.74 x 10^-3 M and 2.2 x 10^-4 M respectively, while the [OH-] for solutions c and d are 2.2 x 10^-4 M and 1.37 x 10^-7 M respectively.

Explanation:

To calculate the [H3O+] and [OH-] in solutions, we need to use the formulas for pH and pOH. Where pH = -log[H3O+] and pOH = -log[OH-]. Therefore, for a solution with a given pH, [H3O+] can be calculated as [H3O+] = 10^-pH, and for a solution with a given pOH, [OH-] is calculated as [OH-] = 10^-pOH.

For solution a, pH = 2.76, [H3O+] = 10^-2.76 = 1.74 x 10^-3 M. Similarly, for solution b, pH = 3.65, [H3O+] = 10^-3.65 = 2.2 x 10^-4 M. For solution c, pOH = 3.65, [OH-] = 10^-3.65 = 2.2 x 10^-4 M. For solution d, pOH = 6.87, [OH-] = 10^-6.87 = 1.37 x 10^-7 M.

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When a match is lit, sulfur (S8) reacts with oxygen to release energy and form sulfur dioxide, SO2. Write the balanced equation for this reaction.

Answers

Answer: S8 + 8O2 => 8SO2

Explanation: The equation is now balanced. Both Sulfur have 8 atoms in the reactant and product side. Oxygen have 16 atoms on each side.

A geologist is studying an area where stream erosion and deposition are the dominant surface processes. He notices that all of the rock layers in the shallow streambeds have dune features preserved throughout them. Knowing that dunes are formed by the wind in desert settings, what can the geologist conclude about the geologic history of this area? A. The depositional environment has changed from stream-dominated in the past to wind-dominated today. B. Wind must still be the dominant factor shaping the surface today. C. Dunes must also form from streams, at least in this area. D. The depositional environment has changed from wind-dominated in the past to stream-dominated today.

Answers

Answer: A)

Explanation:

the deposition environment has changed from wind-dominated in the past to stream-dominated today.

Final answer:

The presence of dune features in the streambeds suggests that the geologic history of the area involved a change in the depositional environment from wind-dominated to stream-dominated over time.

Explanation:

The geologist studying the presence of dune features in streambeds can conclude about the geologic history of the area that there has been a change in the depositional environment. Specifically, the correct answer is D.

The depositional environment has changed from wind-dominated in the past to stream-dominated today. This conclusion is based on the understanding that dunes, with their characteristic cross-bedding patterns, are typically formed by wind in desert environments.

Thus, finding these dune features preserved in current streambeds indicates that the area was once a desert with active wind erosion and deposition, but now it is characterized by stream erosion and deposition.

Erosion and deposition are dynamic processes that reflect changes in Earth's surface through time. The study of sedimentary structures like cross-bedding is fundamental in reconstructing paleoenvironments and understanding how the forces of wind, water, and other elements have shaped the landscape.

Recognizing cross-bedding patterns within sediments allows geologists to determine the direction of the ancient winds or water flows that created them.

Determine the volume of 12.3 grams of formaldehyde gas at STP?

Answers

9.184 liters CH2O at STP

I think this is correct. Good luck

Answer: 9.18 L

Explanation: Solution attached.

Convert mass of CH2O to moles

Derive V from PV= nRT

Substitute the values.

chemistry questions?

Answers

Answer:

no <3

Explanation:

What is the final step in the scientific method?

Answers

Answer:

Developing a Conclusion

Answer:

The conclusion

Explanation:

It states what the final results are and helps you double check if your hypothesis was correct.

1. What is the primary source of energy used by
producers during photosynthesis?
A. thermal energy from the sun
B. light energy from the sun
C. chemical energy from food and oxygen
D. chemical energy from carbon dioxide and
water

Answers

Answer:

b

Explanation:

In photosynthesis, light energy from the sun is harvested and it is converted into chemical energy. The primary source of energy used by producers during photosynthesis is light energy from the sun. The correct option is B.

What is photosynthesis?

The process which takes place in the chloroplasts through photosynthetic pigments like chlorophyll a, chlorophyll b, carotene and xanthophyll to synthesize nutrients by using carbon dioxide, water and sunlight is known as the photosynthesis.

The plants use light energy to convert carbon dioxide and water into glucose and oxygen. This sugar molecules are used by the green plants as the energy source which helps them to grow.

The process photosynthesis is also exhibited by the algae, cyanobacteria, etc. to convert solar energy into chemical energy. Light is the major factor which complete this process.

Thus the correct option is B.

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The major ways people are exposed to toxins are by ingesting them, inhaling them, injecting
them, or absorbing them through the skin.

Answers

It is true that the major ways people are exposed to toxins are by ingesting them, inhaling them, injecting  them, or absorbing them through the skin.

Explanation:

Toxins can enter in four various ways into our body often referred as "route of exposure". It is one among many factors affecting toxicity.

Inhalation: When the toxin is a gas, it is usually absorbed into the body by inhalation. Inhalation of toxins may cause respiratory and lung damage. Eg: cigarette smoke

Absorption: If a toxin enters the human eye or skin, it can be absorbed into the bloodstream. This is called absorption. The skin can prevent some toxins from entering the body. For example: work stations (gas stations) where people work with toxins

Ingestion means that the person has ingested the toxin. Some chemicals cannot get into blood from digestive tract. For example: drinking contaminated water.

The injected toxin enters the body when the person carrying the toxin breaks the skin. Injections can end in veins, muscles or just under the skin. Eg: Botulinum (used to get rid of wrinkles)

In bio-chemistry, poison, a natural or synthetic substance that damages living tissue and has a harmful or lethal effect on the body, regardless of whether it is absorbed, inhaled or injected through the skin.

Which feature forms at convergent
boundaries?
A mountain range
B trench
C rift valley
D mid-ocean ridge

Answers

Final answer:

Convergent boundaries can form both mountain ranges and trenches, but the specific feature formed depends on whether the boundary involves an oceanic plate or a continental plate.

Explanation:

At convergent boundaries, tectonic plates move toward each other. The type of feature that forms at convergent boundaries depends on the types of plates involved and their interactions. Here are the possible features associated with convergent boundaries:

A. Mountain Range: Formed when two continental plates collide, resulting in the uplift of crustal material and the creation of a mountainous region.

B. Trench: Formed when an oceanic plate collides with a continental plate, causing the denser oceanic plate to subduct beneath the continental plate. This leads to the formation of a deep ocean trench.

C. Rift Valley: This typically forms at divergent boundaries where tectonic plates move away from each other. It is not a typical feature of convergent boundaries.

D. Mid-Ocean Ridge: Formed at divergent boundaries where oceanic plates move apart, allowing magma to rise from the mantle and create a new oceanic crust. It is not a typical feature of convergent boundaries.

Convergent boundaries are zones where plates move together. When an ocean plate meets a continental plate, the heavier ocean plate is pushed beneath the continental plate, forming a trench. When two continental plates collide, they smash into each other, forming a large mountain range. Hence, the correct answer is A. mountain range.

The Celsius temperature of a fixed mass of gas is increased from 2°C to 4°C while
the pressure remains constant. The volume of the gas will be:
half as much
O doubled.
the same.
increased slightly.

Answers

Final answer:

The volume of a gas that has its Celsius temperature increased from 2°C to 4°C, while the pressure remains constant, would increase slightly due to the principles of Charles's Law in physics.

Explanation:

The concept behind this question is called Charles's Law from physics. This law states that the volume of a given mass of an ideal gas is directly proportional to its temperature on the absolute temperature scale (Kelvin), if pressure and the amount of gas remain unchanged.

In your case, the Celsius temperature of a fixed mass of gas is increased from 2°C to 4°C, a change of 2 degrees. In Kelvin this is a change from 275K to 277K since we add 273 to convert Celsius to Kelvin. Using Charles's Law, under these conditions, the volume of the gas would increase slightly, not significantly. As the change in temperature is very small, the change in the volume would also be small.

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Final answer:

Increasing the temperature from 2°C to 4°C while keeping pressure constant will result in a slight increase in the gas's volume, according to Charles's law.

Explanation:

The student's question is about what happens to the volume of a gas when its Celsius temperature is increased from 2°C to 4°C while the pressure remains constant.

Charles's law states that the volume of a gas is directly proportional to its temperature when the pressure is held constant. Hence, increasing the temperature in degrees Celsius – or more relevantly, in Kelvin – will also increase the volume of the gas slightly.

Since the increase in temperature from 2°C to 4°C is minimal (equivalent to an increase from 275.15K to 277.15K), the change in volume will be correspondingly small. Thus, the correct answer is that the volume of the gas will be increased slightly.

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Help with this?Show work please :)​

Answers

Answer: 3.2778x10-10 moles Ca

Explanation: solution

1.974x10-¹⁴ atoms Ca x 1 mole Ca/ 6.022x10²³ atoms Ca

= 3.278x10-10 moles Ca

how many electrons were transferred if the total charge of a process is 919.4 C

Answers

The number of electrons transferred of the process is 5746.25×[tex]10^{18}[/tex]e.

Explanation:

The electron is known as the subatomic particle which revolves around the nucleus by possessing the negative charge.  when the atoms are involved in the reaction or process these electrons are transferred are gained by the atoms.  Coulomb is the term used to express the charge of the electrons.  In normal 1 coulomb of charge possess  6.25× [tex]10^{18}[/tex] electrons.  So here the total charge of the process is 919.4c in order to find number of electrons transferred is found by the product of  919.4 × 6.25× = 5746.25 ×  [tex]10^{18}[/tex].Thus the number of electrons transferred is obtained. the transferred electrons are 5746.25 ×[tex]10^{18}[/tex].

The number of electrons that were transferred is 5.746 × 10²¹

From the question,

We are to determine the number of electrons that were transferred.

Using the formula

Q = ne

Where

Q is the total charge

n is the number of electrons

and e is the charge of 1 electron (e = 1.6 × 10⁻¹⁹ C)

From the given information

Q = 919.4 C

Putting this into the formula, we get

919.4 = n × 1.6 × 10⁻¹⁹

∴ n = 919.4 ÷ (1.6 × 10⁻¹⁹)

n = 5.746 × 10²¹

Hence, the number of electrons that were transferred is 5.746 × 10²¹

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What would happen of scientific knowledge was not debated and confirmed by scientist?

Answers

Answer: the world wouldn’t be the same today

Explanation:

What are the values for standard temperature and pressure

Answers

Answer:

Standard Temperature and Pressure. Standard temperature is equal to 0 °C, which is 273.15 K. Standard Pressure is 1 Atm, 101.3kPa or 760 mmHg or torr. STP is the "standard" conditions often used for measuring gas density and volume.

The  values of standard temperature and  standard pressure are 273.15 K and 1 atmospheric pressure.

What is standard temperature and standard pressure?

Standard temperature and pressure are defined as a standard set of conditions required for experimental measurements  which are established to allow comparison between different sets of data.

Standards which are commonly used are those International Union of pure and applied chemistry and national institute of standards and technology.These are not universally accepted standards  but are the ones which are commonly used.

Standard conditions of pressure and temperature are necessary  to define standard reference conditions used to express volumes of liquids and gases.

These values are important to physicists, chemists ,engineers ,pilots and navigators.

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How many molecules are in 1.25 mil of oxygen dichlorvos, OCL2?

Answers

Answer:

                     7.52 × 10²³ Molecules of OCl

Explanation:

                     As we know one mole of any substance contains 6.022 × 10²³ particles (atoms, ions, molecules or formula units). This number is also called as Avogadro's Number.

The relation between Moles, Number of Particles and Avogadro's Number is given as,

                         Number of Particles   =  Moles  ×  6.022 × 10²³

In given statement the particles are the molecules of Oxygen dichloride OCl₂ Hence,

Putting values,

                         Molecules of OCl₂  =  1.25 mol  × 6.022 × 10²³ Molecules/mol

                         Molecules of OCl₂  =  7.52 × 10²³ Molecules

How many electromagnetic forces exist?
a one
b. two
c.
d
three
four
Please select the best answer from the choices provided

Answers

One. The electromagnetic force is one of the four known fundamental forces.

Answer:

c

Explanation:

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What is the maximum number of orbitals with: n = 4, L= 1

Answers

Answer:3

Explanation: I

'm not sure

The maximum number of orbitals with n = 4, L = 1 is 16, distributed among s, p, d, and f subshells.

There can be a total of 16 orbitals. These include: one 4s orbital, three 4p orbitals, five 4d orbitals, and seven 4f orbitals. Each subshell has a specific number of orbitals based on the values of ml.

The student has asked about the maximum number of orbitals with n = 4 and L= 1. In quantum chemistry, the principal quantum number n determines the shell, and the azimuthal or angular momentum quantum number L (also denoted as l) determines the subshell type. For n = 4, l can have values of 0 (s subshell), 1 (p subshell), 2 (d subshell), and 3 (f subshell). When l = 1, which is the p-type subshell, the magnetic quantum number ml can have three values: -1, 0, and +1. Thus, there are three orbitals corresponding to the p subshell when n = 4 and l = 1, namely the 4p orbitals.

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