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drek231 [11]
3 years ago
6

Which element has 4 energy levels and 7 valence electrons

Chemistry
1 answer:
antoniya [11.8K]3 years ago
5 0

Answer:

Beryllium 4 2

Boron 5 3

Carbon 6 4

Nitrogen 7 5

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3.0 L of a gas has a temperature of 78 C find the volume of the gas at standard temperature
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Answer:

= 2.33 L

Explanation:

V1/T1 = V2/T2

V1 = 3.0 L

T1 = 78 + 273

   = 351 K

At s.t.p the temperature is 273 K and pressure is 1 atm.

V2 = ?

T2 = 273 K

V2 = V1T2/T1

    = (3.0 ×273)/351

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Explanation:

ik it is confusing but that is what i got

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A scientist is designing an investigation to study the impact of UV radiation present in high-altitude habitats on the populatio
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