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Temka [501]
3 years ago
13

HURRY PLEAS!!!!!!!!!!!!!!!!!!!!

Chemistry
2 answers:
mixas84 [53]3 years ago
8 0
D. action force and reaction forces are stated in his law
Eduardwww [97]3 years ago
7 0
I think it's D.

Good luck :)

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What is the identity of the element with the electron configuration of
Nataly [62]

Zinc

Explanation:

  Electron configuration:

          1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s²

To decipher this atom, we must understand what each of the letters and number represents;

                 1s²

  1 is the principal quantum number

  s is the azimuthal number or the subshell

  2 superscript is the number of electrons

Using the number of electrons, we can deduced the atom:

                              2+2+6+2+6+10+2 = 30 electrons

The element with 30 electrons on the periodic table is Zinc

Learn more:

Periodic table brainly.com/question/1704778

#learnwithBrainly

3 0
3 years ago
A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu²⁺ salt, and the other half-cell with a Cd bar in the same volume o
Verizon [17]

The E^o_{cell} of the voltaic cell is 0.743 V. The ΔG°of the given cell is -143.377 kJ and K is 1.35 × 10²⁵

<h3>What is a voltaic cell?</h3>

A voltaic cell often called a galvanic cell, is an electrochemical device that produces electricity through spontaneous redox processes.

It is divided into two distinct half-cells. A half-cell is made up of an electrode (a metal strip, M) dissolved in a solution containing Mn⁺ ions. M can be any metal.

A wire from one electrode to the other connects the two half-cells. Additionally, a salt bridge links the two half-cells.

To solve the question, we need to write the equations of two half-cells

At the anode, oxidation occurs

Cd(s) \rightarrow Cd^{2+}(aq) + 2e^-

E° = -0.403 V

At the cathode, reduction occurs

Cu^{2+}(aq) + 2e^- \rightarrow Cu(s)

E° = 0.34 V

Overall reaction:

Cd(s) + Cu^{2+}(aq) \rightarrow Cd^{2+}(aq) + Cu(s)

We know

E^o_{cell} = E^o_{cathode} - E^o_{anode}

= 0.34 -(-0.403) = 0.743 V

Also,

ΔG° = -nFE^o_{cell}

Where, n = no of electrons gained or lost

F = Faraday constant

E^o_{cell} = standard potential

ΔG° = -2×96485×0.743 = -143376.71 J = -143.377 kJ

Also,

ΔG° = -RTlnK

-143.377 = -8.314 × 10-3 × 298 × lnK

lnK = 57.87

K = 1.35 × 10²⁵

Hence, The E^o_{cell} of the voltaic cell is 0.743 V. The ΔG°of the given cell is -143.377 kJ and K is 1.35 × 10²⁵

Learn more about Voltaic cell:

brainly.com/question/4430225

#SPJ4

6 0
1 year ago
Which choice represents a compound?Required to answer. Single choice.
Citrus2011 [14]

Answer:

CO

Explanation:

Elements will only one capital letter, that may/may not have a lower case letter after it. CO has a capital letter followed by another capital, so it's a compound

8 0
3 years ago
Give a definition of mixture? <br> Why air is called a mixture?
anzhelika [568]

Question

Give a definition of mixture?

Why air is called a mixture?

Answer:

mixture - substance made by combining two more different materials in such a way that no chemical reaction occurs.

Air is a mixture  because  it is composed of gases like inert gases, carbon dioxide, oxygen, nitrogen an so on. Also dust particles are present in the atmosphere so air is a mixture .

Explanation:

8 0
3 years ago
What is diffusion....?​
777dan777 [17]

Answer:

It is the net movement of anything from a region of higher concentration to a region of lower concentration.

5 0
3 years ago
Read 2 more answers
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