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The correct answer is C
Each shell can contain only a fixed number of electrons. The first energy shell around a nucleus can hold up to 2 electrons. Then the second shell can hold up to 8 eletrcons.
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Answer:
The answer is: <em>"Rarefactions"</em>
Explanation:
In a longitudinal wave, particles of the medium vibrate in a direction that is parallel to the direction that the wave travels. Places where particles of a medium crowd closer together are called compressions, and places where the particles spread farther apart are called rarefactions.
Answer:
d) All have identical pressures
Explanation:
The kinetic molecular theory explains how gas molecules behave in a container. By this theory, the gas particles behave like hard, spherical objects in a state of constant, random motion; these particles collide between them and at the walls of the container. Besides, the kinetic energy of the gas depends only on the temperature.
The pressure is the force that the particles are applying under some area, so by the theory, it depends on the number of moles (amount of particles that collides and make the force), the volume of the container and the kinetic energy, or the temperature.
Because all gases have the same number of moles and are at the same temperature and the same volume, they'll have the same pressure.
The soap cannot be expected as a good rust remover, as it lacks the presence of strong acids, or petroleum products, to dissolve the rust.
<h3>What is rusting?</h3>
Rusting is the process of the formation of iron compounds with the reaction of iron with oxygen and water.
The rust can be removed with the acid and petroleum products, as their reaction dissolves the oxygen compounds.
The soap alone cannot be considered a good rust remover, as it lacks the presence of strong acids or petroleum products to dissolve the rust.
Learn more about rusting, here:
brainly.com/question/688285
