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zmey [24]
2 years ago
5

Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves?

Chemistry
2 answers:
Fudgin [204]2 years ago
5 0

Answer:

<h2>Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves?</h2><h2><em>:- Mechanical waves require a medium to travel through, whereas electromagnetic waves can travel through empty space.</em></h2>

<em>is the correct</em>

<em>pls mark me as brainliest pls  </em>

<em></em>

<h3 />
Readme [11.4K]2 years ago
5 0
The answer is D
Explanation: I want points
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Salts get dissolved in water because it has partial positive and negative charges. So option (c) is correct.

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The water molecules pull the Na and Cl ions apart while breaking the ionic bond which held them together. After the salt ions are pulled apart, they get surrounded by water molecules. The salt dissolves to form a homogeneous solution.

  1. The slightly positive portion of sodium is attracted to the slightly negative portion of oxygen on the water molecule. At the same time, the slightly electronegative chlorine moieties of NaCl are attracted to the slightly electropositive hydrogen moieties of water.
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Salts are ionic and are expected to dissolve in water because water itself is polar. Therefore, ionic salts are expected to dissolve in polar solvents.

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