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Sergio039 [100]
3 years ago
6

In the ground state, which atom has a completely filled valence electron shell?

Chemistry
1 answer:
Elina [12.6K]3 years ago
4 0

Answer:

The noble gases(neon, helium, argon)

Explanation:

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When the process of condensation occurs, the kinetic energy of particles
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is insufficient to overcome intermolecular forces.

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Assertion: Atomic mass of aluminium is 27 Reason: An atom of aluminium is 27 times heavier than 1 / 12th of the mass of the C –
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i is the correct answer.

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3 years ago
How will the following changes affect the mole fraction of chlorine gas, χcl2, in the equilibrium mixture.?
sammy [17]
If the reaction is represented by:
PCl₃ + Cl₂ <-> PCl₅ (exothermic)

the mole fraction of chlorine in the equilibrium mixture will change according to the following:
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3 years ago
What property of liquid oxygen makes it especially difficult and potentially harmful to work with at home?
irga5000 [103]
The property of liquid oxygen that makes it especially difficult and potentially harmful to work with at home would be its cryogenic temperature. Liquid oxygen is being produced from the compression of oxygen gas to -196 degrees Celsius. As you can see, it has a very cold temperature that is why it used in cryogenics. Although liquid oxygen is non-toxic to humans, it would cause burns that are severe when being touched. Also, it would make certain materials brittle and unstable. Another property that makes it dangerous for use at home would be that it is very flammable. Proper handling is a must for this substance.
3 0
3 years ago
How many grams are in a sample of 0.55 mol of K?
Katyanochek1 [597]
The equation you use here is
mass =moles x Mr

So:
Moles of K - 0.55mol
Mr of K - 39.1

Mass= 0.55x39.1 =21.505g
4 0
2 years ago
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