balance this
C3H3N + O2 ⇒ C + H2O + N2

The question requires us to explain the differences in radii of neutral atoms, cations and anions.

To answer this question, we need to keep in mind that a neutral atom presents the same number of protons (positive particles) and electrons (negative particles). Another important information is that the protons are located in the nucleus of the atom, while the electrons are around the nucleus. Also, there is an electrostatic force between protons and electrons, which means that they the protons tend to attract the electrons to the nucleus.

While a neutral atom presents the same number of protons and electrons, a cation is an ion with positive charge, which means it has lost one or more electrons. In a cation, the balance between protons and electrons doesn't exist anymore: now, there is more positive than negative charge (more protons than electrons), and the overall attractive force that the protons have for the electrons is increased. As a result, the electrons stay closer to the nucleus and the radius of a cation is smaller than the neutral atom from which it was derived.

On the other side, anions present negative charge, which means they have received electrons. Similarly to cations, the balance between protons and electrons doesn't exist anymore, but in this case, there are more electrons than protons. In an anion, the overall attractive force that the protons have for the electrons is decreased. As a result, the electrons are "more free" to move and, as they are not so attracted to the nucleus, they tend to stay farther from the positive nucleus compared to the neutral atom - because of this, the radius of an anion is larger than the neutral atom from which it was derived.

Answer:

Wowowoowoww

St0p tHe sPamM MaAn

Okay little brain

The percent yield if 20 grams of hydrogen is reacted with 32 grams

of oxygen and produces 9 grams of water is 5 %.

Percent yield is defined as the ratio of actual yield to the theoretical yield multiplied by 100. If the actual and theoretical yield are same then the percent yield is 100%.If actual yield is less than the theoretical yield then the percent yield is less than 100%.Reason of this condition arising is the incompletion of reaction or loss of sample during recovery process.

In cases where percent yield is over 100% it indicates that more sample is recovered than the predicted amount.This condition arises when there are other simultaneous reactions taking place leading to the formation of product. It can also arise if there is incomplete removal of impurities from the sample .

According to the stoichiometry of reaction of formation of water,4 g hydrogen gives 36 g water, thus, 20 g hydrogen gives 20×36/4=180 g water which is theoretical yield.

Now, percent yield=observed yield/theoretical yield×100=9/180×100=5%.

Learn more about percent yield,here:

https://brainly.com/question/2506978

#SPJ2

The notation for the enthalpy of the solution is ∆Hsol. The correct answer is option ∆Hsol.

For more questions on enthalpy

https://brainly.com/question/14047927

#SPJ8

Evaporation is the process by which a liquid converts into a gas or vapor at a temperature below its boiling point. Latent heat of fusion is the amount of heat required to convert a solid into a liquid without any change in temperature.  Steam causes more severe burning as compared to boiling water at 100°C due to the large amount of latent heat of vaporization.

On the other hand, boiling is the process by which a liquid turns into a gas or vapor at a temperature equal to or above its boiling point. In other words, when the liquid is heated to a temperature equal to or greater than its boiling point, it turns into a gas or vapor. The effect of humidity on the rate of evaporation is that if the air around the liquid is already humid, then the rate of evaporation will be slower because the air is already saturated with water molecules.
Latent heat of fusion is the amount of heat required to convert a solid into a liquid without any change in temperature. In other words, it is the amount of heat required to break the intermolecular forces between the molecules of a solid to convert it into a liquid.
Steam causes more severe burning as compared to boiling water at 100°C because steam contains a large amount of latent heat of vaporization. When steam comes in contact with the skin, it releases a large amount of latent heat of vaporization, which causes more severe burns as compared to boiling water at 100°C.

Evaporation is the process of turning a liquid into a gas or vapor at a temperature below its boiling point. Boiling, on the other hand, is the process of turning a liquid into a gas or vapor at a temperature equal to or above its boiling point. Humidity affects the rate of evaporation. Latent heat of fusion is the amount of heat required to convert a solid into a liquid. Steam causes more severe burning as compared to boiling water at 100°C due to the large amount of latent heat of vaporization.

To know more about Evaporation visit:

brainly.com/question/28319650

#SPJ11

The balanced chemical equation is:

V2(SO4)3 + 6(NH4)2S → 2VS + 6(NH4)2SO4

1a. Write out the chemical equation for this reaction and balance it:

Vanadium(V) sulfate reacts with ammonium sulfide to produce solid vanadium(V) sulfide and ammonium sulfate.

The balanced chemical equation is:

V2(SO4)3 + 6(NH4)2S → 2VS + 6(NH4)2SO4

1b. Calculate the number moles of each of the reagents:

To calculate the moles of each reagent, use the formula:

moles = mass (g) / molar mass (g/mol)

The molar masses are:

V2(SO4)3 = 2 * 50.94 (V) + 3 * (4 * 16.00 (O) + 32.07 (S)) ≈ 366.8 g/mol

(NH4)2S = 2 * (14.01 (N) + 4 * 1.01 (H)) + 32.07 (S) ≈ 68.15 g/mol

Now, calculate the moles for each reagent:

moles of V2(SO4)3 = 2.500 kg * 1000 g/kg / 366.8 g/mol ≈ 6.814 mol

moles of (NH4)2S = 1.645 kg * 1000 g/kg / 68.15 g/mol ≈ 24.14 mol

1c. Identify the limiting reagent and calculate the theoretical yield:

From the balanced equation, we can see that 1 mol of V2(SO4)3 reacts with 6 mol of (NH4)2S.

Therefore, the limiting reagent can be determined by dividing the moles of each reagent by their respective coefficients:

V2(SO4)3: 6.814 mol / 1 ≈ 6.814

(NH4)2S: 24.14 mol / 6 ≈ 4.023

Since the smallest value is for (NH4)2S, it is the limiting reagent.

Now, calculate the theoretical yield:

From the balanced equation, 6 mol of (NH4)2S react to produce 2 mol of VS.

So, the theoretical yield of VS = (2 mol VS / 6 mol (NH4)2S) * 24.14 mol (NH4)2S ≈ 8.047 mol VS

1d. Calculate the % yield:

First, convert the actual yield (570.0 g) to moles:

The molar mass of VS = 50.94 (V) + 32.07 (S) ≈ 83.01 g/mol

Actual yield in moles = 570.0 g / 83.01 g/mol ≈ 6.867 mol

Now, calculate the % yield:

% yield = (actual yield / theoretical yield) * 100

% yield = (6.867 mol / 8.047 mol) * 100 ≈ 85.3%

Read more about chemical equations here:

https://brainly.com/question/26694427

#SPJ1

The given statement is true that  gfr can be increased with atrial natriuretic peptide stimulation.

Atrial natriuretic peptide (ANP) is a cardiac hormone that regulates salt-water balance and blood pressure by promoting renal sodium and water excretion and stimulating vasodilation. ANP also has an anti-hypertrophic function in the heart, which is independent of its systemic blood pressure-lowering effect.

Endothelin

Endothelin, a potent vasoconstrictor, stimulates ANP secretion and augments stretch induced ANP secretion. The dramatic increase in ANP release produced by cardiac ischemia appears to be mediated in part by endothelin.

Learn more about ANP here:

If the net effect of all graded potentials is hyperpolarization, the membrane potential will become more negative.


Graded potentials are small changes in membrane potential caused by the flow of ions across the membrane. They can be either depolarizing or hyperpolarizing, depending on the type of ion and direction of flow. If the net effect of all graded potentials is hyperpolarization, this means that the majority of the graded potentials were hyperpolarizing and caused the membrane potential to become more negative.

This could happen, for example, if inhibitory signals were received by a neuron, causing it to become more resistant to firing. Hyperpolarization makes it harder for the neuron to reach its threshold for action potential firing, so if the net effect is hyperpolarization, the neuron will be less likely to fire.

Learn more about hyperpolarization here:

https://brainly.com/question/4179968

#SPJ11

Answer: °32= 0 °C.

Explanation:

Answer:

Explanation:

Please add the temperature readings from all three trials for both thermometers. Will do the calculation with readings.

If we compare 1 mole of H₂ , 1 mole of O₂ and 1 mole of F₂, all will have the same number of molecules .

According to Avogadro's law, " Under same conditions of temperature and pressure, equal volumes of different gases will contain equal number of molecules". Mathematically, it is represented as:

V ∝ n

V= nK

where,

v is the volume of the gas

n is the number of moles of the gas

K is the proportionality constant.

The value of Avogadro's constant is 6.022 × 10²³ atoms, ions or molecules

Therefore on the basis of number of molecules:

1 mole of H₂ = 6.022 × 10²³ molecules

1 mole of O₂ =6.022 × 10²³ molecules

1 mole of F₂= 6.022 × 10²³ molecules

Thus, the number of molecules of all the three gases are same.

To know more about number of molecules here

https://brainly.com/question/13160459

#SPJ4

Answer: 0.00048

m

o

l

Explanation:

Moles = Mass/Molar mass

n

=

m

M

r

=

0.0688

107.87

+

35.5

=

0.00048

m

o

l

Answer:

increase moles of gas inside

Explanation:

Answer:

Its ( C )- Decrease the temperature of the gas inside the basketball

Explanation:

To make sure the balloon doesn't inflate so much it bursts you should NOT completely inflate the balloons when you know the temperature will increase!

1. moles = concentration × volume

= 0.05 × (15/1000)

= 0.00075 moles

2. the concentration of aqueous potassium hydroxide

h2so4 + 2kcl = 2hcl + k2so4 (balanced equation)

1 (h2so4) : 2 (kcl) mole ratio thus kcl has twice the number of moles.

0.00075 x 2 = 0.0015 moles

concentration = 0.0015 ÷ (25/1000)

= 0.06 mol/dm^-3

3. mass of potassium hydroxide dissolved in 25cm

there are 0.0015 moles in 25cm

mass= moles × molar mass

= 0.0015 × 74.5

= 0.11 grams

molar mass of kcl = 74.5 g/mol

Answer:

100% of the energy entering earth's atmosphere comes from the sun. ~50% of the incoming energy is absorbed by the earth's surface i.e. the land and oceans. ~30% is directly reflected back to space by clouds, the earth's surface and different gases and particles in the atmosphere (the earth's albedo is 0.3 on average)

Explanation:

:)

Answer:

4 atoms of Hydrogen

1 atom of Sulphur

4 atoms of Oxygen

hope it helps you

make me brainliest plz

The representation of the electrons in the shell is called doted structure. There are few orbits in which electrons revolve. These orbits are as follows:-

The rule of filling the electron is to fill the first orbit then fill the others. The number of electrons fills in the orbit is as follows:-

Hence, the electron doted structure is as follows:-

CL - 2,8,7

S - 2,8,6

AL- 2,8,3

K- 2,8,8

Ca- 2,8,8

Hence, These are the structure of the elements

For more information, refer to the link:-

https://brainly.com/question/12271256

Hi there! I am XieL4n. I will be the one to help answer your question(s) Make sure to leave feedback if necessary! :)

━。゜✿ฺ✿ฺ゜。━

Your question: Activation energy is determined by the strength of bonds that must be formed.

My answer:

Activation energy is the minimum amount of energy that reactants in a chemical reaction must possess so as to get converted into products.

In a chemical reaction, reactants form products, hence, certain bonds must be broken in the reactant molecules to form the products.

The energy needed to break the bonds of the reactants is known as activation energy.

Your statement is true

When copper replaces graphite as the anode, it results in a change in chemistry because the copper oxidizes, releasing electrons.

What is electron?
The elementary electric charge of the electron is a negative one, making it a subatomic particle. Due to their lack of components or substructure, electrons, which are part of the lepton particle family's first generation, are typically thought to be elementary particles. The mass of an electron is roughly 1/1836 that of a proton. The electron has a half-integer intrinsic angular momentum (spin) that is expressed in terms of the reduced Planck constant,, among its quantum mechanical properties. Since electrons are fermions, the Pauli exclusion principle which states that no two electrons can be in the same quantum state.

When copper replaces graphite as the anode, it results in a change in chemistry because the copper oxidizes, releasing electrons. This oxidation reaction is the basis of electrochemical energy conversion in a battery. However, when copper replaces graphite as the cathode, there is no change in chemistry because no oxidation or reduction reactions take place. The electrons simply flow through the copper to the anode, where they are combined with oxygen to form water.

learn more about electron
https://brainly.com/question/25674345
#SPJ4

Answer:

Explanation:

Use context clues to write your own definition for each meaning of the word matter.

Example sentence

What is this gooey matter on the table?

Matter:

__________

Example sentence

Please vote! Your opinions matter.

Matter:

__________

The phenylmethanol is typically reacted with potassium manganate in a reaction vessel or flask equipped with a condenser to allow for reflux during the oxidation reaction.

To react phenylmethanol with potassium manganate, you can use a round-bottom flask as the apparatus. Here's a step-by-step explanation:
1. Add phenylmethanol to a round-bottom flask.
2. Add an aqueous solution of potassium manganate to the flask.
3. Stir the mixture to ensure proper mixing of the reactants.
4. Monitor the reaction, as the potassium manganate oxidizes the phenylmethanol.
Remember to follow safety protocols and wear appropriate personal protective equipment while performing the reaction.

To learn more about potassium manganate click here https://brainly.com/question/25070246

#SPJ11

By the use of the Boyle's law as we can see in the solution below, the pressure is  51.5 units.

Boyle's law is a principle in physics that describes the relationship between the pressure and volume of a gas at a constant temperature.

It states that the pressure of a gas is inversely proportional to its volume, meaning that if the volume of a gas is decreased, the pressure will increase proportionally, and if the volume is increased, the pressure will decrease proportionally.

Using the Boyles law;

P1V1 = P2V2

P2 = P1V1/V2

P2 = 12.8 * 40.2/10

P2 = 51.5

Learn more about the Boyle's law:https://brainly.com/question/30367133

#SPJ1

Hydrochloride (HCl) is not one of the body's chemical buffering systems. Option A is correct.

The body's primary chemical buffering systems include the bicarbonate buffer system, the phosphate buffer system, and the protein buffer system.

Bicarbonate Buffer System; This system involves the equilibrium between carbon dioxide (CO₂), water (H₂O), and bicarbonate ions (HCO₃⁻) in the blood. It helps regulate the pH of the extracellular fluids, particularly in the bloodstream.

Phosphate Buffer System; This system involves the equilibrium between dihydrogen phosphate ions (H₂PO₄⁻) and hydrogen phosphate ions (HPO₄²⁻) in the intracellular fluids and urine. It plays a role in buffering pH changes in the intracellular environment.

Protein Buffer System; Proteins, such as hemoglobin and albumin, contain amino acids with ionizable groups that can accept or donate protons (H⁺). They act as intracellular and extracellular buffers to help maintain pH balance.

On the other hand, hydrochloride (HCl) is not a specific chemical buffering system within the body. HCl is a strong acid that is produced in the stomach to aid in digestion and does not function as a buffer system.

Hence, A. is the correct option.

To know more about chemical buffering systems here

https://brainly.com/question/31790797

#SPJ4

--The given question is incomplete, the complete question is

"Which of the following is not one of the body's chemical buffering systems? A) hydrochloride B) phosphate C) bicarbonate D) protein."--

The body's chemical buffering systems include cell and plasma proteins, hemoglobin, phosphates, bicarbonate ions, and carbonic acid. Hydrochloride is not one of the body's chemical buffering systems.

The body's chemical buffering systems include cell and plasma proteins, hemoglobin, phosphates, bicarbonate ions, and carbonic acid. Among the options given, hydrochloride is not one of the body's chemical buffering systems.

https://brainly.com/question/31605199

#SPJ11

There are also 6 oxygen atoms in the products. This is because the products of the photosynthesis reaction include C6H12O6 (glucose) and 6O2 (oxygen gas). The glucose molecule contains 6 carbon, 12 hydrogen, and 6 oxygen atoms.

In the photosynthesis reaction, 6CO2 + 6H2O → C6H12O6 + 6O2, there are 18 oxygen atoms in the reactants.

Therefore, the total number of oxygen atoms in the products is 6. This is because oxygen gas is not bonded to anything else and is released into the atmosphere as a product of photosynthesis.

The reactants of photosynthesis, carbon dioxide (CO2) and water (H2O), are converted into glucose (C6H12O6) and oxygen (O2) gas. In this process, sunlight energy is converted into chemical energy that is stored in glucose, which is used by the plant for growth and other metabolic processes. Therefore, photosynthesis is a crucial process for life on earth.

To know more about photosynthesis  visit:

https://brainly.com/question/30715543

#SPJ11

Answer: Zn2+

Explanation:

The standard reduction potential of the given species is as follows:-

\(\begin{aligned}&Z_{(aq)}^{2+}+2 e^{-} \longrightarrow {Zn}(\mathrm{s}) \quad E^{\circ}=-0.76 \mathrm{~V}\\&\mathrm{Mn}_{(\text {aq) }}^{2+}+2 e^{-} \longrightarrow \mathrm{Mn}(\mathrm{s}) \quad E^{\circ} = -1.03 \mathrm{~V}\\&\mathrm{Na}^{+}_{(\text {aq) }} + e^{-} \longrightarrow \mathrm{Na}\text{(s)} \quad E^{\circ}=-2.71 \mathrm{~V}\end{aligned}\)

\(\begin{aligned}&\mathrm{Al}_{(\text {aq) }}^{3+}+3 e^{-} \longrightarrow \text {Al}\text{(s)}\quad E^{0}=-1.66 \mathrm{~V}\\&\mathrm{Li}^{+}(aq)+{e}^{-} \longrightarrow \mathrm{Li}\text{(s)} \quad E^{0}=-3.05 \mathrm{~V}\end{aligned}\)

In the electrochemical series, the species having the lowest electromotive force—the lowest negative value—will be reduced first and the species having the highest negative value will be reduced last

Therefore, Zn2+ will be reduced first and Li+ will be reduced last

The reduction has been defined as the loss of electrons. The species of molten salt that reduces first has been zinc ion in electrolysis.

The electrolysis has been defined as the process of the ionization of the salt under the influence of the electric field.

The species with the lowest reduction potential will reduce first. The reduction potential of the following is:

Zinc has the lowest reduction potential and thus is the reduced first among the others.

Learn more about electrolysis, here:

https://brainly.com/question/12054569

Answer:

(a) The maximum amount of work that can be obtained from the first galvanic cell is -510.5kJ.

(b) The maximum amount of work that can be obtained from the second galvanic cell is -318.5kJ.

Explanation:

In this question, we need to use the standard reduction potentials to calculate the standard cell potential of each galvanic cell, and then use the formula AG = -nFE to calculate the maximum amount of work that can be obtained from each galvanic cell.

Solve the Problem

(a) Cr₂02 +14H++6e → 2Cr³++7H₂O

The standard reduction potential of Cr2O2 is 1.33V, and the standard reduction potential of His 0V. Therefore, the standard cell potential of this galvanic cell is:

E cell = reduction (Cr202) - E reduction (H+) = 1.33V

The number of electrons transferred in this reaction is 6, so the maximum amount of work that can be obtained from this galvanic cell is:

AG= -nFE = -696485C/mol 1.33J/C = −51

(b) 2H+ + 2e→ H₂

The standard reduction potential of H+ is 0V, and the standard reduction potential of Al3+ is -1.66V.

Therefore, the standard cell potential of this galvanic cell is:

EO =E0 cell reduction (H+)-E0 reduction (A13+) = 0V – (−1

The number of electrons transferred in this reaction is 2, so the maximum amount of work that can be obtained from this galvanic cell is:

AG-nFE-2 96485C/mol 1.66J/C-31

Draw the Conclusion

(a) The maximum amount of work that can be obtained from the first galvanic cell is -510.5kJ.

(b) The maximum amount of work that can be obtained from the second galvanic cell is -318.5kJ.

Tayla selects a variety of items and places them on the table, her selected items is an organic substance is D. hydroxide hair relaxer

Organic substances are compounds that contain carbon atoms, these substances are widely used in the world of science and industry. They are used to make a wide variety of products such as plastics, fuels, and medicines. Hydroxide hair relaxer is one of the few items on Tayla's table that is an organic substance. The hydroxide hair relaxer contains carbon atoms and is made up of carbon compounds.

It is used to straighten and relax curly hair by breaking down the disulfide bonds that hold the hair's natural shape. Other items such as the scissors, glass of pure water, and plastic comb are not organic substances and are therefore not made up of carbon compounds. This is because hydroxide hair relaxer is made from carbon compounds and contains carbon atoms. Therefore, the correct answer is D. hydroxide hair relaxer.

Learn more about disulfide bonds at

https://brainly.com/question/4157094

#SPJ11

Answer:

Explanation:

Carbon cycle explains the movement of carbon between the earth's biosphere, geosphere, hydrosphere and atmosphere. ... Carbon atoms are then released as carbon dioxide when organisms respire. The formation of fossil fuels and sedimentary rocks contribute to the carbon cycle for very long periods.

The law that demonstrates this observation is the law of definite proportions.

Law of definite proportion states that a given chemical compound continually incorporates its element factors in constant ratio (with the aid of using mass) and does now no longer rely on its supply and technique of preparation. Law of Definite Proportions states that during a given kind of chemical substance, the factors are continually blended withinside the identical proportions with the aid of using mass. The Law of Definite Proportions applies while factors are reacted collectively to shape the identical product. Such as , a sample of an unknown substance contains 24. 0 grams of carbon and 2. 0 grams of hydrogen.

To learn more about law of definite proportion check the link below:

https://brainly.com/question/28888452

#SPJ4

For a thermometer with a mark at every 1.0°C, the uncertainty is ± 0.5°C which can result in errors.

Errors in chemical analysis result when there is a difference between observed value and the true value.If the magnitude of errors is large , it results in decrease in accuracy, reproducibility, and precision.

There are three types of errors:1) random error 2) systematic error 3) human error.The cause of random errors are difficult to quantify while the human errors can be minimized by taking a range of readings to reduce the error.

Learn more about errors,here:

https://brainly.com/question/15810279

#SPJ9

The mass of unknown radioactive substance will be 69 gram.

When a substance will have unstable nuclei and even the capacity to spontaneously release energy while exchanging fast-moving charged particles in an effort to stabilize, the substance is described as radioactive.

It is known that

\(N/N_{0} = (1/2)^{t/x}\)

where, N = initial quantity, \(N_{0}\)  = quantity remaining, t = elapsed time.

Given that,

N = 38.5 g

t = 3.20 hours

x = 8 hour

\(N_{0}\) = ?

Put the value of given data in above equation.

\(N/N_{0} = (1/2)^{t/x}\)

38.5/ \(N_{0}\)  = 80/32

\(N_{0}\)  = 69 gram.

Therefore, the mass of unknown radioactive substance will be 69 gram.

To know more about radioactive substance

https://brainly.com/question/1160651

#SPJ4