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How can we differentiate between alcohol and ether by chemical tests? Best waterproof jacket? The function f is f(x)= (x+4)(x-a), the graph of f is a parabola , a is const. The x coord. is b/w 1 and 3, which is a?
A. -2
B. 1
C. 5
D. 9? What is the surface area of a cylinder with holes in the side? What is the molecular structure of the stable form of FNO2? (N is the central atom.)?