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Readme [11.4K]
3 years ago
9

How many moles are in 11.2 L of helium gas?

Chemistry
2 answers:
puteri [66]3 years ago
8 0

Answer:

16 is the answer

Explanation:

0.5 x 32 = 16

goldenfox [79]3 years ago
4 0
The pretty sure the answer is 16
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The electron configurations of five different elements are shown below. which of these elements is expected to have the largest
ipn [44]
Missing question:

(a) 1s2 2s2 2p6 3s1
(b) 1s2 2s2 2p6 3s2
(c) 1s2 2s2 2p6 3s2 3p1

(d) 1s2 2s2 2p6 3s2 3p4

(e) 1s2 2s2 2p6 3s2 3p5

Answer is: a) 1s²2s²2p⁶3s¹ (sodium).

Sodium have the largest second ionization energy, because when he lost one electron(first ionization energy), he have stable electron configuration of noble gas neon (1s²2s²2p⁶), so sodium do not need to lost second electron, because he will have unstable electron configuration.

7 0
3 years ago
Which of the following represents new land formed beneath the plates from divergent boundaries?
ohaa [14]

Answer:

Mid ocean ridge.

Explanation:

(it is an underwater mountain range, formed by plate tectonics.)

7 0
3 years ago
The 3 principles of the kinetic theory
jekas [21]

Answer:

There are three main components to kinetic theory: No energy is gained or lost when molecules collide. The molecules in a gas take up a negligible (able to be ignored) amount of space in relation to the container they occupy.

Explanation:

If I helped please mark as brainliest

5 0
4 years ago
Please help me with this
klemol [59]

Answer: the answer is X.

Explanation:

Think of it as a graph with potential and kinetic energy

5 0
3 years ago
Read 2 more answers
When you step out of a shower, the temperature in the bathroom is 71°F and the relative humidity is 96%. You notice that a barel
salantis [7]

Answer: The temperature of the inside glass surface is 21.05^{o}C (or 69.89^{o}F).

Explanation:

At 71^{o}F and 96%, we will calculate the moisture content according to the psychometric content as follows.

     Moisture content = \frac{0.0158 kg H_{2}O}{1 kg Air} \times \frac{29 kg air/mol}{18 kg H_{2}O/mol}

                                 = \frac{0.0255 mol H_{2}O}{\text{mol air}}

   Mole fraction of H_{2}O = \frac{0.0255}{1 + 0.0255}

                             = 0.0249

Now, partial pressure of water will be calculated as follows.

    Partial pressure of H_{2}O = mole fraction of H_{2}O × 1 atm

                          = 0.0249 atm

At mirror of temperature T, the partial pressure of H_{2}O is equal to the saturation pressure. Therefore, the saturation pressure will be 0.0249 atm.

Hence, according to the steam tables temperature at which vapor pressure of water is 21.05^{o}C (or 69.89^{o}F).

8 0
3 years ago
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