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kiruha [24]
3 years ago
6

Which of the following elements has a complete outer shell of electrons? A. Iron (Fe) B. Hydrogen (H) C. Neon (Ne) D. Nitrogen (

N)
Chemistry
1 answer:
Julli [10]3 years ago
3 0

Answer:

The answer is Neon

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Why is a relatively large amount of energy required to turn liquid water into water vapor?
bagirrra123 [75]
Water can exist in three states.

1) Solid State: Called Ice.

2) Liquid State: Called Liquid Water.

3) Gas State: Called Steam.

Remember:
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3 years ago
Which of the following is NOT an
skelet666 [1.2K]
The answer is C. Light because light is a form of energy
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A scuba diver knows that she needs 50.0mol of air for an upcoming dive. What size (volume) tank will she need to fill for this d
erica [24]

Answer:

1120 L.

Explanation:

Hello!

In this case, as no conditions of pressure of temperature are given for this problem, we can assume that the scuba diver dives at STP (1 atm and 273.15 K), which means that 1 mole of air would occupy a volume of 22.4 L.

In such a way, since she needs 50.0 moles of air, the following ratio is useful to compute the size (volume) of the tank she needs:

V_2=\frac{V_1*n_2}{n_1}

Thereby, we plug in to obtain:

V_2=\frac{22.4L*50.0mol}{1mol}\\\\V_2=1120 L

Best regards!

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Explanation:

hope it helps , pls mark me as brainliest

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