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Sonja [21]
2 years ago
5

Covalent bonds form through:

Chemistry
1 answer:
Annette [7]2 years ago
4 0

Answer:

Sharing of electrons such that each atom attains an octet

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Be sure to answer all parts. A concentration cell consists of two Sn/Sn2+ half-cells. The electrolyte in compartment A is 0.23 M
kolbaska11 [484]

Answer:

Part A. The half-cell B is the cathode and the half-cell A is the anode

Part B. 0.017V

Explanation:

Part A

The electrons must go from the anode to the cathode. At the anode oxidation takes place, and at the cathode a reduction, so the flow of electrons must go from the less concentrated solution to the most one (at oxidation the concentration intends to increase, and at the reduction, the concentration intends to decrease).

So, the half-cell B is the cathode and the half-cell A is the anode.

Part B

By the Nersnt equation:

E°cell = E° - (0.0592/n)*log[anode]/[cathode]

Where n is the number of electrons being changed in the reaction, in this case, n = 2 (Sn goes from S⁺²). Because the half-reactions are the same, the reduction potential of the anode is equal to the cathode, and E° = 0 V.

E°cell = 0 - (0.0592/2)*log(0.23/0.87)

E°cell = 0.017V

3 0
3 years ago
Experiments were carried out in which a beam of cathode rays was first bent by a magnetic field and then bent back by an electro
Sergio039 [100]

a. the ratio of mass to charge of an electron

Explanation:

The experiment permitted the direct measurement of the ratio of mass to charge of an electron.

  • The charge to mass ratio of an electron was determine by accelerating a beam of cathode rays in magnetic and electric fields.
  • No matter the gas used in the tube or the nature of the material of the electrodes, the rays were found to have constant charge to mass ratio of 1.76 x 10¹¹coulombkg⁻¹.

learn more:

Subatomic particles brainly.com/question/2757829

#learnwithBrainly

6 0
3 years ago
I NEED THIS ASAP TODAY PLEASSSSEEEEEE
alukav5142 [94]

Option C, mass would be same. Only the gravitational pull will be different

7 0
3 years ago
Study the following unbalanced half-reaction. Which equation represents the balanced half-reaction? H2O2 ---> H2O
Aleonysh [2.5K]
O: 1*2 = 2*1 
<span>H 2 + 2 = 2*2 </span>

<span>answer C hope you get it right</span>
5 0
3 years ago
Read 2 more answers
San Alfonso Del Mar, a resort in Chile, has the world's largest swimming pool.
AlexFokin [52]

Answer:

2,500,000 litres or 2.5 megalitres of water.

Olympic size pools measure: 50 metres long, 25 metres wide, and a minimum of 2

metres deep.

(25m x 50m x 2m = 2,500m3; 1L = 0.001m3 so 2,500 x 1000 = 2,500,000L)

660,430 gallons of water.

50 meters = 164.041995 feet (a)

25 meters = 82.0209975 feet (b)

2 meters = 6.5616798 feet (c)

Volume = (a) * (b) * (c) = 88,286.66721 cubic feet Explanation:

8 0
2 years ago
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