Karen constantly worries about whether her front door is locked, the toaster is unplugged, and the oven is turned off. Whenever she enters or leaves her home, she must open and close the door ten times. Then, she must lock and unlock the door ten times. After making her toast in the morning, she must plug and unplug the toaster ten times. Before leaving her house, she must press the off button on the oven ten times. If she loses count, she must start over. Needing to complete these tasks adds extra time to her morning routines, many times making her late for work. All day while she is at work, she worries that her door is unlocked, the toaster is plugged in, and the oven is on. Required:
Based on the information provided, what psychological disorder is Karen most likely experiencing?

it is going to be account a

no questions on whether they are allowed that right

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