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creativ13 [48]
3 years ago
8

Which of the following subatomic particles are found surrounding the nucleus and have a negative charge?

Chemistry
1 answer:
Pepsi [2]3 years ago
7 0

Answer:

J electrons

Explanation:

Electrons are the negatively charged subatomic particles that surrounds the nucleus of an atom.

  • Electrons occupy the bulk volume of an atom.
  • These particle was discovered by J.J Thomson
  • They found orbiting the extra-nuclear space of every atom.
  • The nucleus is made up of protons and neutrons.
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Using what you have learned about magnetic forces, potential and kinetic energy. Describe the changes
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Answer:

reversible reaction or covalent bonds

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2 years ago
Find δs∘ for the reaction between nitrogen gas and hydrogen gas to form ammonia:12n2(g) 32h2(g)→nh3(g)
Dima020 [189]

Nitrogen (N2) and hydrogen (H2) gases react to form ammonia, which requires -99.4 J/K of standard entropy (ΔS°).

What is standard entropy?

The difference between the total standard entropies of the reaction mixture and the summation of the standard entropies of the outputs is the standard entropy change. Each entropy in the balanced equation needs to be compounded by its coefficient, as shown by the letter "n."

Calculation:

Balancing the given reaction following-

1/2 N₂(g) + 3/2 H₂ (g)→ NH₃ (g)

ΔS° = [1 mol x S° (NH₃)g] - [1/2 mol x S° (N₂)g] - [3/2 mol x S°(H₂)g]

Here S° = standard entropy of the system

Insert into the aforementioned equation all the typical entropy values found in the literature:

ΔS° = [1 mol x 192.45 J/mol.K] - [1/2 mol x 191.61 J/mol.K] - [3/2 mol x 130.684 J/mol.K]

⇒ΔS° = - 99.4 J/K

Therefore, the standard entropy, ΔS° is -99.4 J/K.

Learn more about standard entropy here:

brainly.com/question/14356933

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5 0
1 year ago
Which scientist is known for developing the planetary model of the atom
xenn [34]

Answer:

Ernest Rutherford

Explanation:

The Rutherford model, proposed originally in 1911, dipicts a planetary model of the atom in which there is a nucleus and electrons circling it.

7 0
3 years ago
What is the atomic mass of<br> an atom?
Alborosie

Answer:

1 unit

Explanation:

It is expressed as a multiple of one-twelfth the mass of the carbon-12 atom, 1.992646547 × 10−23 gram, which is assigned an atomic mass of 12 units.

1/12 * 12 = 1. I think so.

4 0
3 years ago
C. Chemical energy. What is the difference in chemical energy between organic and inorganic
Olenka [21]
There are chief differences between organic and inorganic compounds. ... The main difference is in the presence of a carbon atom; organic compounds will contain a carbon atom (and often a hydrogen atom, to form hydrocarbons), while almost all inorganic compounds do not contain either of those two atoms.
8 0
3 years ago
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