Guillermo was having a normal day when suddenly he felt an overwhelming expansion of his mood. He now feels euphoric, cheerful, optimistic, has boundless energy, and feels sociable and confident. However, he is also hyperactive, impulsive, demanding, and overbearing. His behavior is typical of a

manic episode

Explanation:

Manic episode is a medical condition often known as manic episode or manic syndrome, it is a situation in which the individual suffering from it, experiences abnormally elevated arousal, affect, and energy level.

However, manic episode is often conceived as a "mirror image" to depression or bipolar disorder, the inflated mood can be either euphoric or irritable;and while this icreases, irritability can be more obvious and leads to anxiety or violence.

Hence, Guillermo behavior is typical of manic episode.

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question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals