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An ionic bond forms when ____________________. 

Determine the electronic and molecular geometry for CH3F.

Nitrogen trifluoride is a polar molecule because _____.

A 68-year-old woman occasionally forgets where she placed her keys but later finds them. She remains independent in finances, cooking, and medication management. Which statement best explains her symptoms?

A 79-year-old woman with dementia has urinary incontinence but normal bladder function. She cannot reach the bathroom in time due to mobility limitations. What type of incontinence is this?

A 32-year-old male presents with infertility. He has a history of mumps orchitis at age 15. Which diagnostic test should be ordered first?

A 63-year-old woman presents with brief episodes of severe electric shock–like facial pain triggered by brushing her teeth. Each episode lasts seconds. Neurologic exam is otherwise normal. Which is the most appropriate first-line treatment?

A 28-year-old woman presents with recurrent unilateral headaches lasting 12–24 hours associated with nausea, photophobia, and visual disturbances described as “flashing lights.” Neurologic examination is normal. Which of the following best explains the underlying pathophysiology of this patient’s headache?

A 29-year-old woman reports episodes of unilateral vision loss and pain with eye movement followed months later by numbness in her arms. Symptoms partially resolved between episodes. Which diagnosis is most likely?

A 35-year-old man presents with painless scrotal swelling that transilluminates. The testicle is difficult to palpate. What is the most likely diagnosis?