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4 years ago

The following reaction does not proceed to a product: H2O + Cu --> no reaction. Why is that?

2 answers:

5 0

I think the correct answer would be because copper has a lower activity than hydrogen and cannot replace the bonds in it. Substances that are not oxidizing do not react with copper since the redox potentials are very low. Hope this answers the question.

morpeh [17]4 years ago

5 0

The reason why H₂O +Cu does not proceed to a product is that

copper has a lower activity than hydrogen and cannot replace it (answer A)

<u><em>Explanation</em></u>

Replacement reaction is type of a reaction in which element react with compound and take place of another element in that compound.

That is the more reactive element replaces the less reactive element from it's compound.

<em>Since H₂ is more reactive than Cu in reactivity series therefore no reaction occur between H₂O +Cu since Cu cannot replace H₂ from its compound.</em>

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The solubility of co in water at 0c and 1 atm co pressure is 0. 0354 mg of co in 1 ml of water. Calculate the moalrity of aqueso

Dmitriy789 [7]

From all the calculations that were carried out, the concentration of 2atm is 0.0026 M.

<h3>What is molarity?</h3>

The term molarity is defined as the number of moles divided by the volume of the solution. Using the formula; C = kp where

C = concentration
k = constant
p = pressure

C = 0. 0354 * 10^-3 g/28 g/mol × 1000/1 L

C = 0.0013 M

k = C/p = 0.0013 M/1 atm

k = 0.0013 Matm-1

Now;

C = 0.0013 Matm-1 * 2 atm

C= 0.0026 M

Learn more about molarity: brainly.com/question/12127540

4 0

2 years ago

A chemist fills a reaction vessel with 9.20 atm nitrogen monoxide (NO) gas, 9.15 atm chlorine (CI) gas, and 7.70 atm nitrosyl ch

ivanzaharov [21]

Answer:

The reactions free energy $\Delta G = -49.36 kJ$

Explanation:

From the question we are told that

The pressure of (NO) is $P_{NO} = 9.20 \ atm$

The pressure of (Cl) gas is $P_{Cl} = 9.15 \ atm$

The pressure of nitrosly chloride (NOCl) is $P_{(NOCl)} = 7.70 \ atm$

The reaction is

$2NO_{(g)} + Cl_2 (g)$ ⇆ $2 NOCl_{(g)}$

From the reaction we can mathematically evaluate the $\Delta G^o$ (Standard state free energy ) as

$\Delta G^o = 2 \Delta G^o _{NOCl} - \Delta G^o _{Cl_2} - 2 \Delta G^o _{NO}$

The Standard state free energy for NO is constant with a value

$\Delta G^o _{NO} = 86.55 kJ/mol$

The Standard state free energy for $Cl_2$ is constant with a value

$\Delta G^o _{Cl_2} = 0kJ/mol$

The Standard state free energy for $NOCl$ is constant with a value

$\Delta G^o _{NOCl} =66.1kJ/mol$

Now substituting this into the equation

$\Delta G^o = 2 * 66.1 - 0 - 2 * 87.6$

$= -43 kJ/mol$

The pressure constant is evaluated as

$Q = \frac{Pressure \ of \ product }{ Pressure \ of \ reactant }$

Substituting values

$Q = \frac{(7.7)^2 }{(9.2)^2 (9.15) } = \frac{59.29}{774.456}$

$= 0.0765$

The free energy for this reaction is evaluated as

$\Delta G = \Delta G^o + RT ln Q$

Where R is gas constant with a value of $R = 8.314 J / K \cdot mol$

T is temperature in K with a given value of $T = 25+273 = 298 K$

Substituting value

$\Delta G = -43 *10^{3} + 8.314 *298 * ln [0.0765]$

$= -43-6.36$

$\Delta G = -49.36 kJ$

4 0

3 years ago

a student carries out this chemical reaction in a beaker: Zn+CuCl2-->Cu+ZnCl2 After the reactionhas come to completion, what

BigorU [14]

Answer:

The correct answer is

C. Cu and ZnCl2

Explanation:

I got it correct on PLATO

5 0

3 years ago

Ms. Clark is teaching her class about how plants make food for themselves. On the board, she has written this: __________ + air

laila [671]

Answer:

sunlight

Explanation:

7 0

3 years ago

During the dust bowl wind deposited surface minerals in a new location by what?

Alika [10]

"Saltation" which is the movement of hard particles such as sand over an uneven surface in a turbulent flow of air or water.

6 0

3 years ago