identify the equilibrium shift that takes place after each reaction is gently warmed. in which direction does the equilibrium of this reaction shift due to warming? co(g) 2h2(g)↽−−⇀ch3oh(g)δH∘

Answer:

The correct answer -

a. Cd and Pb(NO3)2

b. Redox reactions

c. Pb and Cd(NO3)2

Explanation:

This is the reaction known as the redox or reduction-oxidation reaction of metals. In this particular reaction, there are two reactants Cadmium (III) in solid-state and lead (II) nitrate in the aqueous state. At the end of this reaction, the products that we get are lead (II) in solid-state and Cadmium (III) nitrate in the aqueous state.

cadmium (s)+ lead nitrate (aq) = lead (s) + cadmium nitrate (aq)

Cd (s) + Pb2+(aq) → Pb(s) + Cd2+(aq)

Here, Oxidizing agent is Pb2+ and the reducing agent is Cd.

The standard molar entropy is a measure of the disorder or randomness of a substance at standard conditions. Generally, solids have lower entropy than liquids, and liquids have lower entropy than gases.Option e is correct.

NaCl(s) Na3PO4(aq) NaCl(aq)

a.NaCl(aq) > Na3PO4(aq) > NaCl(s)

b. NaCl(aq) > NaCl(s) > Na3PO4(aq)

c. Na3PO4(aq) > NaCl(aq) > NaCl(s)

d. NaCl(s) > NaCl(aq) > Na3PO4(aq)

e. NaCl(s) > Na3PO4(aq) > NaCl(aq)

Based on the principles mentioned above, option e is correct. NaCl(s) has the lowest entropy because it is a solid, while Na3PO4(aq) has a higher entropy because it is in aqueous solution, and NaCl(aq) has the highest entropy since it is a more disordered state than both solid NaCl and Na3PO4(aq).

So, the correct order is NaCl(s) > Na3PO4(aq) > NaCl(aq).

For more such questions on entropy

https://brainly.com/question/3465355

#SPJ11

a) The hydrogen ion concentration of the solution is 7.3761 x 10^-5 moles per liter, b) the total surface area of the country is 6.9470 x 10^4 square miles.

(a) The hydrogen ion concentration of the solution is given as 0.000073761 moles per liter. To express this number in scientific notation, we need to move the decimal point to the right until there is only one non-zero digit to the left of the decimal point, and then multiply by 10 raised to the appropriate power.

In this case, we can move the decimal point five places to the right to obtain \(7.3761 \times 10^{-5\) moles per liter.

(b) The total surface area of the country is given as 69,470 square miles. To express this number in scientific notation, we need to convert it to a number between 1 and 10, multiplied by a power of 10.

We can do this by moving the decimal point to the left until there is only one non-zero digit to the left of the decimal point, and then multiplying by 10 raised to the appropriate power. In this case, we can move the decimal point four places to the left to obtain \(6.9470 \times 10^4\) square miles.

For more such questions on concentration

https://brainly.com/question/28564792

#SPJ11

Answer:

Prairie

Explanation:

because it grows in the same type of climate, its amount of humus.  sorry if its wrong I am not good with chem but i hope its right :)

Answer:

lol

Explanation:

Answer:

felt that.__________

Answer:

I guess your answer would be A even thought it is not actually correct it is the closest to being correct.

Explanation:

The molar mass of Al2(SO4)3 is 342.15 g/mol. This means that 1 mole of Al2(SO4)3 has a mass of 342.15 g.To find the mass of sulfur in 2.0 moles of Al2(SO4)3, we first need to determine the number of moles of sulfur in 1 mole of Al2(SO4)3. There are 3 moles of sulfur in 1 mole of Al2(SO4)3, so there are 6 moles of sulfur in 2 moles of Al2(SO4)3.To find the mass of sulfur in 2.0 moles of Al2(SO4)3, we can use the following calculation:Mass of sulfur = (moles of sulfur) x (molar mass of sulfur)

Mass of sulfur = 6 mol x 32.06 g/mol

Mass of sulfur = 192.36 gTherefore, the mass of sulfur in 2.0 moles of Al2(SO4)3 is 192.36 grams.

Answer:

16

Explanation:

Answer:

16 hopes this will help you

Explanation:

16 hope this helps

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

Force = 50 × 5

We have the final answer as

Hope this helps you

The water changes from the gas to the liquid through the process of the condensation.

The Condensation is the process where the water vapor becomes the liquid. It is the reverse of the evaporation, where the liquid water becomes the vapor. The Condensation happens one of the two ways: The first is either the air will cooled to its the dew point or it will becomes so saturated with the water vapor that it cannot be hold any of the more water.

Thus, the condensation is the process in which the  water changes from the gas phase to the liquid phase.

To learn more about condensation here

https://brainly.com/question/21566464

#SPJ4

The historical order of atomic models from the earliest to the most recent is as: Hard sphere model, electron shell model, and wave mechanical model. Therefore, option (A) is correct.

The atomic model can be described as the model used to describe the structure and composition of the atom. The atom as a primary component of matter has been under extensive study to understand the universe.

In the classical model of an atom, the atom is made of smaller particles with an electrical charge called electrons, protons, and neutrons. To understand the atomic models, it is important to understand how these particles make up the atom.

There are five principal atomic models that have been proposed over time,  which are Dalton’s atomic model, Thomson’s atomic model, Rutherford’s atomic model, Bohr’s atomic model, and the quantum atomic model.

Learn more about the atomic model, here:

https://brainly.com/question/1596638

#SPJ5

Your question was incomple, most probably the complete question was,

Which group of atomic models is listed in historical order from the earliest to the most recent?

A)  Hard sphere model, electron shell model, and wave mechanical model

B)  Hard sphere model,  wave mechanical model, and electron shell model

C) Electron shell model, Hard sphere model, and wave mechanical model

D) Electron shell model, wave mechanical model, and  Hard sphere model

Explanation:

So if V œ T, then V = kT ; if we solve for k under different conditions of volume and temperature......

\( \frac{v1}{t1} = \frac{v2}{t2} \)

temperature is measured in degrees Kelvin.

And

\( v2 = \frac{v1}{t1} \times t2 = \frac{275 . ml}{298 \: . \: k } \times 403 \: . \: k = ?\)

?mL

0.403 L is the new volume where the initial volume is 275 mL and the initial temperature is 273 K.

Gas laws relate to the pressure, volume, and temperature of a gas. Boyle's law—named for Robert Boyle—states that, at constant temperature, the pressure P of a gas varies inversely with its volume V, or PV = k, where k is a constant.

The relationship between volume and temperature is: \(\frac{V_1}{T_1} =\frac{V_2}{T_2}\) where \(V_1\)and \(T_1\) are the initial volumes and \(V_2\) and \(T_2\) are the final volumes.

\(\frac{V_1}{T_1} =\frac{V_2}{T_2}\)

Given data:

\(V_1 =\) 275 mL, \(T_1 =\) 0

\(V_2 =\) 275 mL, \(T_2 =\) 130

Putting all the values in the equation:

\(\frac{V_1}{T_1} =\frac{V_2}{T_2}\)

\(\frac{0.275}{273} =\frac{V_2}{403}\)

\(V_2 =\) 0.403 L

Hence, 0.403 L is the new volume.

Learn more about gas law here:

https://brainly.com/question/12669509

#SPJ2

Answer:

The pool float looked would have looked deflated the next morning.

Explanation:

When temperature decreases the volume decreases

Answer:

The pool float most likely looked a little deflated or pushed in

Explanation:

The pool float most likely looked a little deflated or pushed in. This is because during the night temperatures most likely dropped. These cold temperatures during the night would have caused the air molecules inside the pool float to come closer together which would cause there to be more excess space inside the pool float. Therefore, allowing it to collapse into itself. This would be far worse if the float was filled with helium or another gas other than O2.

Answer:

1/1000

Explanation:

The final Lewis structure for HBr is:

    :Br:
  ..  ..
H -     :
  ..  ..

The Lewis structure for HBr is as follows:

H - Br

In this structure, the hydrogen atom (H) and the bromine atom (Br) are bonded together by a single covalent bond. This is represented by the dash (-) between the two atoms. The Lewis structure shows the arrangement of the valence electrons around the atoms in a molecule.

To draw the Lewis structure for HBr, we first need to determine the number of valence electrons for each atom. Hydrogen has 1 valence electron and bromine has 7 valence electrons.

Next, we need to arrange the atoms and connect them with a single bond. The hydrogen atom is placed on one side of the bromine atom and a single bond is drawn between them.

Finally, we need to complete the octets for the atoms by adding lone pairs of electrons around the bromine atom. Bromine needs 7 more electrons to complete its octet, so we add 3 lone pairs of electrons around it.

To learn more about Lewis structure refer here:

https://brainly.com/question/20300458#

#SPJ11

The oxidizing agent in the given half-reaction is H₂O (water). Option A is correct.

In the given half-reaction, two molecules of water gain two electrons to form one molecule of hydrogen gas and two hydroxide ions. The reduction of water to hydroxide ions involves the gain of electrons and reduction is always accompanied by oxidation of some other species.

Since water is being reduced, the species that is oxidized is the oxidizing agent. The given reaction has a negative standard reduction potential (Eo), indicating that it is not spontaneous under standard conditions.

However, if coupled with a suitable half-reaction having a positive Eo value, the overall reaction can be made spontaneous.

The complete question is:

In the half-reaction shown, what is the oxidizing agent? \(2 H_2O(l) + 2 e \rightarrow H_2(g) + 2 OH-(aq); Eo = -0.83 V\)

\(A) H_2O(l)\)

\(B) H_2(g)\)

\(C) OH-(aq)\)

D) none of the above.

To know more about half-reaction, refer here:

https://brainly.com/question/20689685#

#SPJ11

Answer:

C

Explanation

the most important factor is the angle that the sunlight hits the earths surface

Answer:

the water displaced will not help the student find the correct volume because you can not accurately calculate it. you have to get the water when it is settled then you place the wood in.

Explanation:

Answer: It loses kinetic energy.

Answer:

It's the 4th one. The car is accelerating gradually.

Answer:

4.70 grams of NH4Cl is needed to prepare 350 mL of a 0.25 M ammonium chloride solution.

We need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

To determine the mass of NH4Cl needed to prepare the solution, we us use the formula:

m=M x V x MM ... (i)

where,

m= mass in grams

M=molarity of solution

MM= molar mass of compound

V= volume in litres

The number of moles of NH4Cl needed can be calculated using:

  Moles = Molarity x Volume ...(ii)

  Moles = 0.25 mol/L x 0.350 L

  Moles = 0.0875 mol

Hence we can replace M x V with number of moles in equation i.

The molar mass of NH4Cl is :

  Molar mass of NH4Cl = (1 x 14.01 g/mol) + (4 x 1.01 g/mol) + (1 x 35.45 g/mol)

  Molar mass of NH4Cl = 53.49 g/mol

We have all the variables

Putting them in equation i.

Hence,

  Mass (g) = Moles x Molar mass

  Mass (g) = 0.0875 mol x 53.49 g/mol

  Mass (g) = 4.68 g

Therefore, you would need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

To learn more about Stoichiometry,

https://brainly.com/question/16060223

The temperature of a sample of NO2 weighing 0.95 grams which has a volume of 0.65 liters when collected at 730 mm is 365K.

The value of temperature is calculated by using ideal gas equation.

PV = nRT

where,

P is the pressure on gas or substance

V is volume of sample

R is gas constant

n is the number of moles of sample

T is the temperature

Given,

P = 730 mmHg /760= 0.96atm

V = 0.65L

R = 0.0821

Molar mass of NO2 = 46gram

Given mass of NO2 = 0.95 g

moles = given mass /molar mass

= 0.95/ 46.

= 0.021mol

By substituting all the value in equation we get,

0.96× 0.65 = 0.021 × 0.0821× T

T = (0.96 × 0.65)/(0.021 × 0.0821)

T = 365K

Thus, we found that the temperature of a sample of NO2 weighing 0.95 grams which has a volume of 0.65 liters when collected at 730 mm is 365K.

learn more about ideal gas equation:

https://brainly.com/question/12242461

#SPJ4

There are four. Fe, H, C, and O

The mass of sodium chloride that would be produced from 12 moles of magnesium chloride in the provided reaction would be 1404 g.

The AMU stands for "atomic mass unit," which is a unit of mass used in chemistry and physics to express the mass of atoms, molecules, and other particles on a very small scale. One atomic mass unit is defined as one-twelfth of the mass of a carbon-12 atom, which is approximately 1.66054 x 10^-27 kilograms. The AMU is a convenient unit to use when working with very small masses because it allows scientists to express them in more manageable numbers.

The balanced chemical equation is:

2 Na + MgCl2 → 2 NaCl + Mg

The molar mass of MgCl2 is:

MgCl2 = 24 g/mol (Mg) + 2 × 35.5 g/mol (Cl) = 95 g/mol

The stoichiometry of the reaction indicates that 1 mole of MgCl2 produces 2 moles of NaCl.

So, 12 moles of MgCl2 will produce:

2 moles NaCl/mol MgCl2 × 12 mol MgCl2 = 24 moles NaCl

The molar mass of NaCl is:

NaCl = 23 g/mol (Na) + 35.5 g/mol (Cl) = 58.5 g/mol

Therefore, the mass of NaCl produced from 12 moles of MgCl2 is:

24 moles NaCl × 58.5 g/mol NaCl = 1,404 g (or 1.404 kg).

To know more about AMU, visit:

https://brainly.com/question/11043552

#SPJ1

Answer:  Time = Distance ÷ Speed

Answer:

223 g

Explanation: