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Bogdan [553]
2 years ago
10

NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!

Chemistry
1 answer:
Paraphin [41]2 years ago
7 0
<h2>Answer:  C) 1s²2s²2p⁶</h2>

<h3>Explanation:</h3>

A noble gas has 8 electrons between the p and s orbitals of the outer shell. Helium is the exception because it only has two electrons.

<h3>                       ∴  1s²2s²2p⁶ is the noble gas (neon)</h3>

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82 grams

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The standard unit for measuring volume is the _____.
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How many Liters of oxygen at STP will react with 8.7 grams of ethene? * IF
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What is the kinetic energy of 3500 kg bus that is moving at 25 m/s
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Answer:

<h2>1093750 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

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From the question we have

k =  \frac{1}{2}  \times 3500 \times  {25}^{2}  \\  = 1750 \times 625 \\  = 1093750 \:  \:  \:  \:  \:

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8 0
3 years ago
Which statement below is not a premise of the Kinetic-molecular theory of gases?
zhuklara [117]

Answer:

d = all are premise of KMT.

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Gas particles are extremely small and have relatively large distance between them.

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C

The average kinetic energy of gas particles is proportional to the temperature of gas.

All these are the premise of kinetic molecular theory. According to kinetic molecular theory, the particles pf gases are very small and randomly move in the available space. They move freely in straight line and colloid with each other and also the wall of container. This collision is elastic. As molecules strike with each other and walls of container their energy increases, and they gets warmer. So their kinetic energy is proportional to the temperature because mass of particle is constant.

4 0
3 years ago
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