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Hunter-Best [27]
3 years ago
14

How many atoms are in a 58.2 L sample of Agent Orange gas?

Chemistry
1 answer:
anzhelika [568]3 years ago
3 0
I is going on titans for the yyyyyyyyyt game on the
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Write the electron configuration for N and N-3. How many electrons are in the valence energy level?
Alinara [238K]

Non-valence electrons: 1s22s22p6. Therefore, we write the electron configuration for Na: 1s22s22p63s1. What is the highest principal quantum number that you see in sodium's electron configuration? It's n = 3, so all electrons with n = 3 are valence electrons, and all electrons with n < 3 are non-valence electrons.

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3 years ago
What happens to the potential energy of a book that is dropped from a desk to the floor?
Debora [2.8K]

Answer:

D.   It is converted into kinetic energy.

Explanation:

When a book is dropped from a desk to the floor, the potential energy of the book is converted to kinetic energy as it falls.

  • Potential energy of a body is the energy due to the position of the body.
  • At a particular height, the potential energy is maximum.
  • A body with mass and moving with velocity will have kinetic energy
  • As the book drops through the height, to conserve energy, the potential energy is converted to kinetic energy.
4 0
3 years ago
Which substance is one that cannot be separated or broken down into simpler substances by chemical means? (Element, pure)
Y_Kistochka [10]

Answer:

gold wire (Au)

Explanation:

A substance that cannot be separated or broken down into simpler substances by chemical means is an element.

Between the given options only gold wire is an element, Au.

A way of knowing that it is an element is noticing that its formula is a single symbol which corresponds to an element found in the periodic table, unlike a combination of said symbols (like NaCl or H₂O).

5 0
3 years ago
The transfer of thermal energy between two bodies at different temperatures is known as
EastWind [94]
Conduction.......................
3 0
2 years ago
220 mL of oxygen gas was collected over water. The total pressure of oxygen plus water vapor was 745.8 mmHg at 25.0°C. What is t
alukav5142 [94]

The pressure, in mmHg, exerted by only the oxygen gas is 720.8 mmHg

<h3>Pressure of gas collected over water</h3>

The total pressure of a gas collected over water is given by P = P' + p where

  • P = pressure of oxygen gas and
  • p = vapour pressure of water at 25 °C = 25 mmHg

Making P' subject of the formula, we have

P' = P - p

Since the total pressure of oxygen plus water vapor is P = 745.8 mmHg, substituting the values of the variables into the equation, we have

P' = P - p

P' = 745.8 mmHg - 25 mmHg

P' = 720.8 mmHg

So, the pressure, in mmHg, exerted by only the oxygen gas is 720.8 mmHg

Learn more about pressure of gas collected over water here:

brainly.com/question/25815247

3 0
2 years ago
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