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Which of the following solvents can not be used with (CH3)3COK?

Which of the following is a Newman projection for the following compound as viewed down the indicated bond in the conformation shown?   

Ar, K+, and Cl- are isoelectronic elements (elements with the same number of electrons). What orbital does the last electron occupy?

Ballons and the first powered heavier than aircraft were mainly used for what in warfare in the 18th and 19th centuries?

Adverse yaw is the natural and undesirable tendency for an aircraft to yaw in the opposite direction of a roll. It is caused by the difference in lift and drag of each wing.  When the Wright Brothers experience this, they countered adverse yaw with the coordinated introduction of input from a ___________

After World War I, Germany revived _________________ as a major aeronautical activity.

Who was the first person to fly across the Atlantic ocean?  What was the name of the aircraft?

Circa 1925, German Zeppelins have flown to the North Pole and around the world.

Germany made many strides in airship design with its Zeppelin. This rather large airship was __________________(rigid or semi-rigid)[A] and used ____________(hot air/heliuem/hydrogen)[B] to get it to float in air.   

Comparative anatomy ultimately links organisms to