Hydration spheres can be formed by compounds which contain ________ bonds.
A. ionic
B. polar covalent
C. nonpolar covalent
D. Both polar covalent and ionic are correct.
Answer: D
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When absorbing the force of a baseball, which of the following will change the impulse?
A. reduce the force with which the ball is thrown B. wear a catcher's mitt C. "give" with the ball when catching D. both A and B E. all of the above
An eye that focuses an image behind the retina is ________
A) nearsighted B) myopic C) hyperopic D) None of the listed responses is correct.
What cells contribute to the process of calcification during intramembranous ossification?
A) osteocytes B) osteoblasts C) keratinocytes D) osteoclasts
The lens is made of layers of proteins called
a) choroids. b) ciliary bodies. c) crystallins. d) cones. e) rods.