help me please!!!!!!!!!!!

Help Me Please!!!!!!!!!!!

Answers

Answer 1

I fell confident that I can identify the different rates of chemicals.

It is challenging to explain the difference between the role of the physical surface area as well as the presence of a catalyst in the reaction.One example of reaction rates I encounter everyday is when I strike a matches every time.

How are reaction rate is applied in daily life?

This is known to be be a powerful diagnostic tool and it is called a reaction's rate. It is one that is seen when we can create methods to increase production by understanding how quickly items are made and what slows down reactions.

Therefore, reaction rate, in regards to chemistry, is seen as the speed with which a said or given chemical reaction moves or functions.

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Related Questions

Is distilled water act as preservative?

Answers

No. Water is considered a growth factor for microorganisms. Good day!

hello, can someone please help me with this problem ​

Answers

This reaction is exothermic reaction and amount of heat that was released or absorbed by the reaction is 208.8kJ and reaction enthalpy means ΔH is 705.91kJ/mol

An exothermic process releases heat causing the temperature of the immediate surroundings to rise

Here given reaction is

KOH → K⁺ + OH⁻

So, here given data is 14.4 gram of potassium hydroxide in 250 gram of water and the temperature of water rise from 20°C to 34.5°C and

We have to find which type of reaction is this =? and

Calculate heat released or absorbed by this reaction =? and

Calculate reaction of enthalpy ΔH = ?

So this reaction is exothermic because when potassium react with water it gives potassium hydroxide and in that potassium hydroxide the potassium is positive charge and OH has negative charge

Amount of heat released or absorbed by the reaction the formula are

q = m×c×ΔT and ΔT =  20°C - 34.5°C = 14.5°C and c = 0.452J/g°C

q = 14.4 gram×0.452×14.5°C

q = 94.377kJ

Reaction enthalpy means  ΔH so,

ΔHreaction = m×s×ΔT

ΔHreaction =  14.4 gram×94.377kJ×14.5°C

ΔHreaction = 705.91kJ/mol

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Marisa is read her Miranda rights. Why is this important?

A.
She can secure an attorney if she wants one.

B.
She knows she is not in formal police custody.

C.
She is required to testify for the defense in her trial.

D.
She is aware she is being video recorded at all times.

Answers

The Miranda rights are very important because she can secure an attorney if she wants one. That is option A.

What is Miranda right?

The Miranda rights are the rights that an individual has when involved with a criminal procedure to help protect them when in police custody.

The Miranda rights where created in the United States of America in the year 1966 which occurred as a result of case of Miranda v. Arizona.

These Miranda rights are used or initiated only when the suspect is to be interrogated under custody and not merely when arrested.

It lets the individual know that they can secure an attorney if they want one.

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Answer:   A

Explanation:

What is the molality of an aqueous solution made with 5.00 kg of water and 3.6 mol of solute?


0.72 m NaOH


3.6 m NaOH


0.090 m NaOH


1.4 m NaOH

Answers

The molarity of the aqueous solution is determined as 0.72 M NaOH.

What is molarity?

Molarity is used to express the concentration of a solution. It is described as the number of moles of a solute in a given concentration of a solution.

Mathematically, molarity is given as;

M = n/V

where;

n is the number of moles of the soluteM is the concentration of the solutionV is the volume of the solution

The volume of the water is calculated as follows;

volume = mass / density

volume = (5 kg) / (1000 kg/m³)

volume = 0.005 m³

The volume of the water in liters is calculated as follows;

volume = 0.005 m³ = 5 liters

The given parameters;

number of moles of the solute = 3.6 moles

Molarity = 3.6 moles / 5 L

molarity = 0.72 M

Thus, the molarity of the aqueous solution of sodium hydroxide is determined from the ratio of number of moles to the volume of the solution.

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Use this reaction to answer the questions and explain :
CO(g)+2H2(g)-CH3OH(g) DeltaH= -91.8kJ

1- if the temperature of the system increases , will the value of the equilibrium constant k increase, decrease or stay the same?
2- Will the concentration of H2 increase, decrease or stay the same ?

Answers

1) If the temperature of the system increases, the equilibrium constant k decreases.

2) the concentration of H₂ increases.

The reaction is given as :

CO +  2H₂   ⇄  CH₃OH                          ΔH = -91.8 KJ ( exothermic reaction)

1) Temperature is the only factor that changes the equilibrium constant for the given reaction. As temperature increases equilibrium constant decreases because the reaction is exothermic reaction.

                K = [ CH₃OH ] / [CO] [H₂]²

2) If the temperature increases the position of equilibrium moves to the left and concentration of H₂ increases.

Thus, 1) If the temperature of the system increases, the equilibrium constant k decreases.

2) the concentration of H₂ increases.

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Draw the net force arrow on the diagram and state the direction. Net force direction​

Answers

The Net force which is acting on the object is 20.12 N and the direction (θ) of the net force is 26.56° towards the South of East. The net force is a resultant of both the forces.

What is the net force?

Th net force is the vector sum of all the forces which are acting on a particle or object. The force on the object in the diagram is given below as follows:

Force 1, F₁ = 18 N (force acting in a direction to the east)

Force 2, F₂ = 9 N (force acting in a direction south)

The two forces makes the two sides of a right-angled triangle in the diagram:

Net force can be determined using Pythagoras rule as follows:

Net force, F = √[(F₁)² + (F₂)²]

Net force = √ [(18)² + (9)²]

Net force = √ (324 + 81)

Net force = √ 405

Net force = 20.12 N

The direction of the Net force (θ) is determined as follows:

θ = tan⁻¹ (9 / 18)

θ = tan⁻¹ (0.5)

θ = 26.56° towards South of East

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If You Had Three Wishes, What Would You Wish For

Answers

Assuming you can't wish for infinite wishes:

1. Hyperintelligence

2. Elite athleticism (within the confines of human limitations of course. So just being a 99th percentile athlete)

3. The ability to summon a delicious steak of any variety at any level of doneness at any moments notice

Asteroids are left over pieces of rocks that didn't become planets or satellites. Where are most of these located in the Solar System?

A. The Oort Cloud
B. The Kuiper Belt
C. The Asteroid Belt

Answers

Asteroids are left over pieces of rocks that didn't become planets or satellites. These are mostly located in The Asteroid Belt in the Solar System.

The main asteroid belt is a region between the orbits of Mars and Jupiter. The Asteroid Belt is a torus shaped region. Some of the asteroids may go in the front or behind the Jupiter.

The Oort cloud has around 2.3% of left over pieces of asteroid rocks. It is a predicted percentage.The asteroids were located in more amount earlier when the interplanetary zones were clearing in the solar system.

The Kuiper Belt has bits of rocks, comets, ice, and the dwarf planets. It is similar to the asteroid belt but it is more complex and larger.

Asteroids are discovered by a systematic search for a planet between Mars and Jupiter in the asteroid belt.

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Donna wants to calculate the speed at which a sound wave is traveling. She knows that the frequency of the wave is 680 hertz and that the wave has a wavelength of 0.5 meters.

What is the speed of the sound wave?

Answers

The speed of the sound wave is 340 mrter per second.

f = frequency of sound wave = 680 hertz

λ = wavelength of sound wave = 0.5 meter

v = speed of the sound wave

We know that the velocity of a sound wave is given by

speed of sound wave = frequency wave of sound x wavelength of sound wave

v = f λ

Substituting the above values into the above equation

v = (680 hertz) (0.5 meters)

v = 340 meters per second

Therefore the speed of sound waves is 340 meters per second.

Sound waves are pressure waves. They can be seen as pressure fluctuations over time. Sound waves are transverse waves. To hear the sound of a tuning fork, the tines on the fork must move air from the fork to the ear. Most sound waves are produced by vibrating objects. Sound is a kind of energy produced by vibration.

These vibrations create sound waves that travel through media such as air water, and wood. When an object vibrates it creates motion in the particles of the medium.

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The following chemical reaction takes place in aqueous solution:
FeCl₂(aq)+K₂S(aq) → FeS(s)+2 KCl(aq)
Write the net ionic equation for this reaction.

Answers

Answer: Fe(aq) + S(aq)   yields FeS(s)

Explanation:

Fe+2 + 2Cl-  + 2K+ + S-2  yields  FeS(S) + 2K+ + 2Cl-

Cross out the aqueous ions and you are left with

Fe+2 + S-2  yields  FeS(s).  

Combustion of 1.00 × 102 mg of caffeic acid yields 220 mg of CO2 and 40.3 mg of H2O.

Answers

The empirical formula of the caffeic acid is C₂H₂O.

What is mass composition of each element?

The mass composition of the carbon and hydrogen in the carbon dioxide and water respectively is calculated as follows;

mass of carbon dioxide CO₂  = 44 g/molmass of water H₂O = 18 g/molatomic mass of carbon = 12 g/molatomic mass of hydrogen gas = 2 g/moltotal mass of the caffeic acid = 1 x 10² mg = 0.1 g

mass of carbon in 220 mg of CO₂ = (12 x 0.22 g)/(44) = 0.06 g

mass of hydrogen in 40.3 mg of H₂O = (2 x 0.0403 g) / (18) = 0.0045 g

mass of oxygen = 0.1 g - (0.06 g + 0.0045 g) = 0.0355 g

The molar composition of the elements is calculated as follows;

H = 0.0045 /1 = 0.0045

C = 0.06 / 12 = 0.005

O = 0.0355 / 16 = 0.0022

Divide through with the smallest molar composition

H = 0.0045 / 0.0022 = 2

C = 0.005/0.0022 = 2

O = 0.0022/0.0022 = 1

The empirical formula is C₂H₂O

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The complete question is below:

Combustion of 1.00 × 102 mg of caffeic acid yields 220 mg of CO2 and 40.3 mg of H2O. find the empirical formula of the caffeic acid.

look at the picture

Answers

Each isotopes has  a different atomic mass , and each occurs in nature in different abundance this statement is true.

What are Isotopes?

Isotopes can be defined as varieties of chemical elements that have the same number of protons and electrons but  different numbers of neutrons. In other words, isotopes are varieties of elements that differ in their number of nucleons (the total number of protons and neutrons)  due to the difference in the total number of neutrons in their nuclei. The total number of neutrons in the nucleus of an isotope can be determined by subtracting the atomic number of the element from the mass number of the isotope.

For example, the  mass number of the isotope 12C of carbon is 12. The atomic number of carbon is 6. Therefore, the isotope carbon-12 has a total number of neutrons of 6.

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emmissions generated by a coal powered utility

Answers

Answer:

Explanation:

Coal is a cheap and abundant resource, and carbon dioxide (CO2) from coal use is responsible for about 40 percent of global greenhouse gas (GHG) emissions from fossil fuel use.

In a reaction of 3-ethyl-2-pentene with HBr as an electrophilic addition reaction, predict the major and minor products (if there is a
difference). Justify your answer by providing the carbocation intermediates for all products. You may arbitrarily choose which
product is product #1 and which is product #2. You will determine major and minor (if any) in the questions below the box.
Intermediates
Products after reacting with HBr
().
Structure of Starting Reactant:
3-ethyl-2-pentene
(you may choose the stereo configuration)

Intermediate option #1

Intermediate option #2

Product from Intermediate #1

Product from Intermediate #2

Answers

tu me puedes ayudar con mi tarea

Water is exposed to electromagnetic radiation of wavelength 3.80 x 10-8 m. Assume that all the radiation is absorbed and converted to heat. How many photons are required to raise the temperature of 4.48 g of water by 4.65 K?

Answers

The number of photons is obtained from the calculation as 1.68 * 10^19 photons.

What is energy?

By definition, we know that energy is the ability to do work. Now we know that we have the wavelength of the radiation can be seen from the question and the values that are given to be 3.80 x 10-8 m.

Then energy = hc/λ

h = Plank's constant

c = speed of light

λ = wavelength

E = 6.6 * 10^-34 * 3 * 10^8/ 3.80 x 10^-8

E = 5.2 * 10^-18 J

Energy of the water = mcdT

= 4.48 * 4.2 * 4.65 = 87.5 J

Number of photons required =  87.5 J/5.2 * 10^-18 J

= 1.68 * 10^19 photons

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Complete the following acid-base reactions with balanced molecular, total ionic, and net ionic equations: A) Cesium hydroxide(aq)+ nitric acid(aq)

Answers

For the acid-base reaction between cesium hydroxide and nitric acid, the given equations are as follows:

Molecular equation: CsOH (aq) + HNO₃ (aq) --> CsNO₃ (aq) + H₂O (l)Total ionic equation : Cs⁺ (aq) OH⁻ (aq) + H⁺ (aq) NO₃⁻ (aq) --> Cs⁺ (aq) NO₃ (aq) + H₂O (l)Net ionic equation : OH⁻ (aq) + H⁺ (aq) --> H₂O (l)

What are acid-base reactions?

Acid-base reactions are reaction in which acids reacts with bases to form salt and water only.

Acid-base reactions are called neutralization reactions since the acid and base are both neutralized to a neutral substance, salt.

The equations in the acid-base reaction of Cesium hydroxide (aq) and nitric acid (aq) are described below:

The molecular equation shows all the reactants involved in the reaction as molecukemoleculesThe total ionic equation shows all the ions involved in the reactionNet ionic equation: shows only the ions that form a non-ionic product.

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A rubber object that floats in water weighs 9.0 x 10-2 N. What is the weight of the water it displaces?​

Answers

Weight of water displaces is 9.0 × [tex]10^{-2}[/tex]  kg.

By the help of Archimedes’ principle,

F = weight of water displaces

Given, F = 9.0 × [tex]10^{-2}[/tex] N

Hence, weight of water displaces is 9.0 × [tex]10^{-2}[/tex]  kg.

Archimedes' principle states that a body immersed in a fluid is subjected to an upwards force same to the load of the displaced fluid. this is a first circumstance of equilibrium. We recall that the above force, referred to as pressure of buoyancy, is located in the center of the submerged hull that we name center of buoyancy.

He did supposedly get an concept as he sat down in a bath, but it wasn't approximately buoyancy that is the phenomenon on which his principle is based. Archimedes' principle states that any object, completely or in part immersed in a fluid, is buoyed up via a force equal to the burden of the fluid displaced through the object.

It is utilized in designing of ships and submarines. It is used in lactometers to determine the purity of milk. it is used in hydrometers to decide density of fluids. It is used in hydraulic lifts.

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look at the picture

high school

Answers

Answer:

determining the melting point of a substance

Explanation:

An atom of Lithium has three protons. It is neutral so it has no electrical charge.

Which statement is true using ONLY this information?

A There is a charge of +3 on an atom of lithium.


B There are three neutrons in the nucleus.


C There are three electrons


D There is charge -3 on an atom of lithium.

Answers

In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge.  The correct option is option C

What is atom?

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided.

As it is given that lithium atom is neutral for this number of proton has to be equal to number of electron. The  proton number is 3 that means number of electron is also 3 because proton number  is equal to number of electron and this equals to atomic number.

Therefore there are three electrons in Lithium if it has three proton. The correct option is option C

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What are the first and second net ionic equations for the addition of aqueous ammonia to aluminum nitrate.

Answers

Al₃⁺(aq) + 3OH⁻(aq) → Al(OH)₃(s) is the first and Al³⁺(aq) + 3NH₄OH → Al(OH)₃(s) +3NH₄⁻(aq) is the second net ionic equations for the addition of aqueous ammonia to aluminum nitrate

The net ionic equation is the chemical equation that shows only those elements or compounds or ions that are directly involved in the chemical reaction

So, first and second net ionic equations for the addition of aqueous ammonia to aluminum nitrate are

Complete ionic equation is

Al₃(aq) + 3NO₃(aq) + 3NH₄⁻(aq) + 3OH⁻(aq) → Al(OH)₃ (s) + 3NH₄⁺(aq)+ NO₃⁻(aq)

So two net ionic equations are

Al₃⁺(aq) + 3OH⁻(aq) → Al(OH)₃(s)

Al³⁺(aq) + 3NH₄OH → Al(OH)₃(s) +3NH₄⁻(aq)

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At a certain temperature, this reaction establishes an equilibrium with the given equilibrium constant, Kc. 3A(g)+2B(g)↽−−⇀4C(g)c=1.33×1031 3 A ( g ) + 2 B ( g ) ↽ − − ⇀ 4 C ( g ) K c = 1.33 × 10 31 If, at this temperature, 1.80 mol of A and 3.50 mol of B are placed in a 1.00 L container, what are the concentrations of A, B, and C at equilibrium?

Answers

The equilibrium concentrations of A, B, and C at equilibrium are:

the concentration of A = 0.12 Mthe concentration of B = 2.38 Mthe concentration of C = 2.24 M

What are the equilibrium concentrations of A, B, and C?

The equilibrium concentrations of A, B, and C are calculated from the equilibrium equation below as follows:

Kc = [C]⁴ /  [A]³ * [B]²  -----(1)

Kc = 1.33 * 10

The initial concentrations of A and B are as follows:

A = 1.80 mol / 1 L = 1.8 M

B = 3.50 mol / 1 L = 3.50 M

The concentrations at equilibrium are given by the ICE table below:

   3 A (g)   +    2 B (g) ⇄ 4 C (g)

I   1.80            3.50           0

C  - 3x           - 2x           + 4x

E  1.80 - 3x   3.50 - 2x    4x

Substituting the concentrations at equilibrium into the equilibrium equation above

1.33 * 10³¹  = 4x⁴ / (1.80 - 3x)³ * (3.50 - 2x)²

x = 0.56

Therefore;

the concentration of A = 1.80 - 3 * 0.56

the concentration of A = 0.12 M

the concentration of B = 3.50 - 2 * 0.56

the concentration of B = 2.38 M

the concentration of C = 4 × 0.56

the concentration of C = 2.24 M

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An organic compound contains 24.24%carbon,4.04% hydrogen,and 71.72%chlorine what is its empirical formula if the molecular mass of the coumpound is 148.5 determine its molecular formula

Answers

The empirical formula of an organic compound with 24.24% carbon. 4.04% hydrogen, and 71.71% chlorine will be  [tex]CHCl_2[/tex].

If the molar mass of the compound is 148.5, the molecular formula will be  [tex]C_2H_2Cl_4[/tex].

Empirical and Molecular Formulas

The compound contains:

C = 24.24H = 4.04Cl = 71.71

The mole of each atom can be found by dividing them by their respective molecular weights.

C = 24.24/12 = 2.02H = 4.04/1 = 4.04Cl = 71.71/35.5 = 2.02

Now, let's divide through by the smallest number of moles

C = 1H= 2Cl = 1

Thus, the empirical formula of the compound is [tex]CHCl_2[/tex].

The molar mass of the empirical formula is calculated as:

12 + 1 + (35.5 x2) = 84 g/mol

Molecular formula = [empirical formula]n

Where n = Molecular formula mass/empirical formula mass

In this case, n = 148.5/84

                       = 1.77 (approximatel 2)

Thus, the molecular formula of the compound is [tex]C_2H_2Cl_4[/tex].

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How many moles are in 68.43g of calcium metal?

Answers

The number of moles are in 68.43 g of calcium metal is 1.710 moles

the no. of moles is given by :

The no. of mole = mass of the substance / mass of one mole

given values are :

mass of calcium ( Ca ) = 68.43 g

molar mass of calcium that is the mass of one mole of calcium  = 40 g/mol

substituting the values,

number of moles = mass / molar mass

                            = 68.43 g / 40 g/mol

                            = 1.710 moles

number of moles calcium in 68.43g  = 1.710 moles

Thus, The number of moles are in 68.43 g of calcium metal is 1.710 moles.

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Once started, why can nuclear fission continue to occur on its own? The thermal energy released can cause the products to join. The neutron formed by the reaction can cause more nuclei to combine. The thermal energy released can cause the products to split. A neutron begins the reaction, and more neutrons are formed in it.

Answers

Once started, nuclear fission reactions are able to continue to occur on their own because a neutron begins the reaction, and more neutrons are formed in it; option D

What is nuclear fission?

Nuclear fission is a type of nuclear reaction in which the nucleus of atoms of large molecular mass is split into two or more smaller atomic nuclei.

Nuclear fission reactions result in the release of large amounts of heat energy and radiation.

Nuclear fission reactions once started, are able to go on occurring on their own until all fissionable material is used up. This is known as a chain reaction.

A chain reaction in nuclear fission occurs because when the atomic nucleus of the large atom is bombarded with fast-moving neutrons, the neutrons that are captured by the nucleus of the large atom results in the fission of the atom and the release of more neutrons that initiate more fission reactions.

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12.60 mg KI in 109.9 mL of solution

Answers

Answer: Molarity  (M) = 6.897 x 10-4 (exponent)

Explanation:  Atomic weight of KI is 166.028

12.6 mg = 0.126g/ 166.028 =  7.58 x 10-5 mol

Molarity (M) = concentration

M = moles(n)/Volume (in liters)

M= 7.58 x 10-5 mol/0.1099L = .0006897 M = 6.897 x 10-4 (exponent)

The number of moles of MgO produced when 0.20 mole of O2 reacts completely is

Answers

The number of moles of MgO produced when 0.20 mole of O₂ reacts completely is 0.40 mole

Mole is the SI unit of amount of substance of a specified elementary entity

Here given data is number of moles of MgO produced when 0.20 mole of O₂ reacts we have to find mole = ?

So the balanced equation is

2Mg + O₂ → 2MgO

So, the number of moles of MgO = (0.20 mol of O₂ )×(2 mol of MgO) / (1 mol of O₂)

= 0.40 mole

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Help me PLEEEEEAAASSEE ASAP I BEG YOU IF YOU KNOW THE ANSWER Which compares the effectiveness of methane and nitrous oxide as a greenhouse gas with that of carbon dioxide. Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide.
Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide.


Neither methane nor nitrous oxide is a more effective greenhouse gas than carbon dioxide.

Neither methane nor nitrous oxide is a more effective greenhouse gas than carbon dioxide.


Only methane is a more effective greenhouse gas than carbon dioxide.

Only methane is a more effective greenhouse gas than carbon dioxide.


Only nitrous oxide is a more effective greenhouse gas than carbon dioxide.

Only nitrous oxide is a more effective greenhouse gas than carbon dioxide.

Answers

Answer:

Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide.

Explanation:

Not really sure what the problem is, the answer is given in the question.


The question asks "Which compares the effectiveness of methane and nitrous oxide as a greenhouse gas with that of carbon dioxide. Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide."


The first part of the question is "Which compares the effectiveness of methane and nitrous oxide as a greenhouse gas with that of carbon dioxide."


The second part of the question is literally the answer, "Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide."

it could be that you just accidentally pasted the same thing twice, and the original question was just "Which compares the effectiveness of methane and nitrous oxide as a greenhouse gas with that of carbon dioxide."
In that case, remember that the order of greenhouse gas potency is Carbon dioxide, methane, nitrous oxides, chlorofluorocarbons. Thus, nitrous oxide and methane are both more potent than carbon dioxide.

0.5 pts This is a reaction that you can find the two half reactions for on a REDOX tower in your discussion manual: NAD+ +H2 --> NADH + 2H+
Group of answer choices
Which compound is the electron donor?
Which compound is the electron acceptor?
When the electron donor loses the electron it becomes:
When the electron acceptor accepts the electron it becomes:
Overall the electron travels from:

Answers

The electron donor is [tex]H_2[/tex].

The electron acceptor is [tex]NAD^+[/tex]

When the electron donor loses the electron, it becomes oxidized.

When the electron acceptor accepts the electron, it becomes reduced.

Overall, the electron travels from H to  [tex]NAD^+[/tex].

Oxidation and reduction

Oxidation is defined as:

Loss of electronsIncrease in oxidation numberLoss of hydrogenGain of oxygen

Reduction is defined as:

Gain of electronsDecrease in oxidation numberGain of hydrogenLoss of oxygen

Looking at the reaction, [tex]NAD^+[/tex] gained hydrogen or an electron to become NADH. this means that NADH has been reduced. The reducing agent or the electron donor is [tex]H_2[/tex] .

Thus, the electron acceptor is [tex]NAD^+[/tex]. When the electron donor, [tex]H_2[/tex], loses the electron, it becomes oxidized to [tex]H^+[/tex].

When the electron acceptor, [tex]NAD^+[/tex], accepts the electron, it becomes NADH.

This means that electron travels from  [tex]H_2[/tex] to [tex]NAD^+[/tex]

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What is the formula for Ag ^+ and Na2S

Answers

The formula for Ag ^+ and Na2S is,

Net Ionic Equation

2Ag + Na2S = Ag2S + 2Na might be an ionic equation.

What exactly is a net ionic equation?The formula for Ag ^+ and Na2S is example of Net Ionic Equation. A net ionic equation is defined as an equation that depicts only the molecules or ions that are actively involved in the reaction or those that change. The spectator ions are not present in this equation. First, write and balance the molecular equation, ensuring that all formulas are correct. Then, using all aqueous substances as ions, write the ionic equation. Carry any coefficients through. Finally, remove spectator ions from the equation and write the net ionic equation. The objective of writing a chemical equation exists to communicate what we accept is proceeding in a chemical reaction. One of the most useful applications of the principal species concept is in the formulation of net ionic equations.

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What volume (in mL) of 0.2950 M HCI is required to neutralize 75.00
mL of 0.6000 M LIOH?

Answers

203 mL of 0.2950 M HCI is required to neutralize 75.00 mL of 0.6000 mL NaOH.

Hcl + NaOH [tex]\rightarrow[/tex] Nacl + H2O

Form dilution formula:

M1V1=M2V2.

So M1=0.6000M, V1=0.075L, M2=0.2950M HCl, V2=?

 V2  = M1V1/M2

        = (0.8)(0.075)/0.2950

        =0.2033L=203 mL.

Explain Dilution  ?

Dilution is the process of "lowering the concentration of a solute in a solution simply by  adding more solvent, such as water, to the solution." Diluting a solution requires adding a solvent without adding a solute.

A popular way to make a solution of a given concentration is to take a higher concentration  and add water until the required concentration is reached. Dilution is the term for this procedure. Dilution can also be done by mixing a higher concentration solution with a lower concentration. Since stock solutions are often obtained and stored in very concentrated concentrations, dilution of the solutions is a mandatory procedure in the laboratory.

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