The electronegativity of an atom describes how much an atom attracts an electron, whether it be in a covalent bond or just on its own.
False, 0 degrees on the K scale is absolute zero.
Answer:

Explanation:
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In this case, the reaction is given as:

Thus, starting by the yielded grams of silver iodide, we obtain:

Which correspond to the iodide grams in the silver iodide. In such a way, by means of the law of the conservation of mass, it is known that the grams of each atom MUST remain constant before and after the chemical reaction whereas the moles do not, therefore, the mass of iodine from the silver iodide will equal the mass of iodine present in the soluble iodide, thereby:

And the rest, correspond to the iodide's metallic cation which is unknown. Such value has sense since it is lower than the initial mass of the soluble iodide which is 1.454g, so 0.272 grams correspond to the unknown cation.
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The answer is False. Absorption is the process or action by which one thing absorbs or is absorbed by another.