Carbon atoms most often share electrons with

Plants like potatoes store glucose in the form of 

 One carbon atom can form up to________ covalent bonds with other atoms.

Organisms that transform solar energy into chemical energy are called

Which of the following are properties of water? 

Monosaccharides are needed to build________, just as________ are needed to create proteins.

Of the following transitions in a hydrogen atom, which represents the emission of a photon with the highest frequency?

What element is represented by the following valence orbital diagram?

A 58-year-old male with PMH of hypertension, is brought into the ED by his family for evaluation of headache, nausea, blurry vision, and confusion. Blood pressure is 235/130 mmHg.  A fundoscopic exam shows retinal hemorrhages, exudates, and papilledema.  These findings would suggest which of the following conditions?

A 62-year-old male with a PMH of polycythemia vera presents to the Emergency Department complaining of sudden onset of pain and paresthesia of the left leg which began 1 hour ago.  Physical examination reveals the left lower extremity is cool to the touch and the toes are cyanotic.  The popliteal pulse is absent by palpation and Doppler.  The left femoral pulse is absent by palpation but weakly present by Doppler.  The right upper and lower extremity pulses are 2+/4+ throughout.  Which of the following conditions is the most likely cause of this patient’s symptoms?