What property primarily determines the effect of temperature on the solubility of gas molecules?
A) the kinetic energy of the gas
B) the polarity of the gas
C) the molecular weight of the gas
D) the ionic strength of the gas
E) the dipole strength of the solvent
Answer: A
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The theory of continental drift is supported by paleoclimatic data, the jig-saw fit of the continents
A) paleontology, and paleomagnetic data. B) and seafloor spreading. C) transform boundaries, and paleontology. D) at their continental margins, and paleontology.
Between a pair of equal and opposite charges, field lines are
A) directed from positive to negative. B) more concentrated closer to the charges. C) vectors, with patterns that stem from the inverse-square law. D) all of the above E) none of the above
A boat moves through the water in a river at a speed of 8 m/s relative to the water. The boat makes a trip downstream and then makes a return trip upstream to the original starting place. Which trip takes less time?
a. the downstream trip b. the upstream trip c. Both trips take the same amount of time. d. The answer cannot be figured without knowing the speed of the river flow.
Which of the following Period 3 atoms has the smallest radius?
a. Ar b. Al c. S d. Na