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Jet001 [13]
3 years ago
14

Which best describes the effect of J. J. Thomson’s discovery?

Chemistry
1 answer:
MissTica3 years ago
8 0
J.J. Thompson is a British physicist who discovered the electron by a series of experiments which is designed to study the nature of a cathode ray tube. His discovery showed us that an atom can be split into smaller parts. He was a pioneer in the study of the model of an atom.
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Joaq...
MrRa [10]

Answer:

all the statements are true of chemical changes

3 0
2 years ago
As the sun heats the surface of the ocean, two layers of water result. What separates the layers.
pychu [463]

Question:<u> As the sun heats the surface of the ocean, two layers of water result. What separates the layers.?</u>

Answer: <u>The Thermocline </u>

<em>Hope this helps!.</em>

<em>~~~~~~~~~~~~~~~~~~~</em>

<em>~A.W~ZoomZoom44</em>

4 0
3 years ago
If a substance undergoes electrolysis and a brown solid forms on one electrode and a gas on the other, from this we can conclude
andrew-mc [135]

Answer:

b. a compound.

Explanation:

Electrolysis is described as a mechanism in which ionic compounds are decomposed into their elements by transmitting a direct electric current via the compound in a liquid state. At the cathode, the cations are reduced and anions at the anode are oxidized. There is an exchange between ions and atoms in the electrolysis process caused by the addition or removal between electrons from the external circuit. As per the question, the original substance is a compound because the electrolysis method is used to obtain pure elements from their respective compound.

7 0
3 years ago
How many grams of Ca metal are produced by the electrolysis of molten CaBr2 using a current of 30.0 amp for
Vanyuwa [196]

Answer: 123 g

Explanation: Q =It = nzF. For Ca^2+ z= 2, t = 5.5 x 3600 s and I = 30.0

And F= 96485 As/mol

Amount of moles is n = It /zF = 3.078 mol , multiply with atomic mass 40.08 g/mol

4 0
2 years ago
If the pressure in the room is 759.2 torr and the vapor pressure of water is 23.8 torr, what is the pressure of hydrogen gas in
Gwar [14]

The partial pressure of Hydrogen gas can directly be calculated by simply taking the difference of the overall pressure and the vapour pressure of water. That is:

 

P (H2 gas) = 759.2 torr – 23.8 torr

<span>P (H2 gas) = 735.4 torr</span>

6 0
3 years ago
Read 2 more answers
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