How many secondary amines have the molecular formula C4H11N?
A) 1
B) 2
C) 3
D) 4
C
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Mike stands at the edge of a cliff and throws one ball straight up and another ball straight down, both with the same speed. Neglecting air resistance, which ball hits the ground below with the greater speed?
A. The one thrown downward B. The one thrown upward C. neither, both hit with the same speed D. need more information
Based on the different crystalline structure of these two carbon minerals, how would the two minerals likely differ?
A. The minerals would have the same hardness because both contain only carbon. B. The minerals would have the same type of cleavage since both contain only carbon. C. The right mineral would have one direction of cleavage. D. The left mineral would have one direction of cleavage.
If the scale of a map is 1:100,000, then 1 centimeter on the map represents ________ on Earth's surface
A) 1 kilometer B) 10 kilometers C) 10,000 kilometers D) 100,000 kilometers E) It depends on the size of the map.
Which layer of the Earth is the thickest?
A) Crust B) Mantle C) Outer core D) Inner core