When considering both electron and H+ transport and the chemiosmotic pump, which of the following is the correct sequence of energy transformations?
A) chemical ? electrical ? mechanical
B) chemical ? mechanical ? electrical
C) electrical ? chemical ? mechanical
D) electrical ? mechanical ? chemical
D
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Where is the projection surface tangent to (touching) the globe? (See end flap of this lab manual.)
Figure 4.5a shows Earth on a planar projection, in which the globe is projected onto a plane. This is a gnomonic projection and is generated by projecting a light source at the center of a globe onto a plane that is tangent to (touching) the globe’s surface. The resulting increasingly severe distortion as distance increases from the standard point prevents showing a full hemisphere on one projection.
Figure 4.5 (a) Gnomonic/planar projection
One-fifth of Earth's total fresh water supply is in ________
A) the ocean B) groundwater C) ponds D) the tundra E) estuaries
A chemist has two pure samples of an organic compound, one of which she obtained from a natural source, and one of which she synthesized in the lab. Which of the following properties can she use to determine which is the synthetic sample?
A) boiling point B) formula weight C) solubility D) none of these
Once salt is dissolved in water the
A. positively charged chlorine cation is surrounded by the positive side of encircling water molecules. B. positively charged sodium cation is surrounded by the negative side of encircling water molecules. C. positively charged sodium cation is surrounded by the positive side of encircling water molecules. D. negatively charged sodium cation is surrounded by the negative side of encircling water molecules.