Which of these four numbered features on the surface or in a cave is a stalactite?
A) 1
B) 2
C) 3
D) 4
E) None of these are correct.
D) 4
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How much energy, in kilojoules, is released or absorbed from the reaction of one mole of nitrogen, N2, with three moles of molecular hydrogen, H2, to form two moles of ammonia, NH3? H-N (bond energy: 389 kJ/mol) H-H (bond energy: 436 kJ/mol) N
N (bond energy: 946 kJ/mol) N N + H-H + H-H ? NH3 + NH3 A) +899 kJ/mol absorbed B) -993 kJ/mol released C) +80 kJ/mol absorbed D) -80 kj/mol released
Which property gives water an unusually high surface tension resulting in a surface "skin" capable of supporting small objects?
A) ?wetting B) ?adhesion C) ?high heat capacity D) ?cohesion
Which of the following is not a difference between the Mississippi River Basin and the Great Basin?
A) One empties into the ocean and the other does not. B) One has more streams than the other. C) One is much larger than the other. D) One experiences evaporation and the other does not.
Sediments of the slope, rise, and deep ocean floor that originate in the ocean are called ____
a. neritic sediments b. pelagic sediments c. terrigenous sediments d. well-sorted sediments e. authigenic sediment