What can you deduce about the activation energy of a reaction that takes billions of years to go to completion? How about a reaction that takes only fractions of a second?
A) The activation energy of both these reactions must be very low.
B) The activation energy of both these reactions must be very high.
C) The slow reaction must have a high activation energy while the fast reaction must have a low activation energy.
D) The slow reaction must have a low activation energy while the fast reaction must have a high activation energy.
C
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According to our text, urban growth in peripheral countries is a consequence of migration to cities, stimulated largely by the onset of
A) war. B) drought and famine. C) the demographic transition. D) pollution and disease. E) structural adjustment programs.
The orientation of charts that placed north at the top and east was on the right was done by:
A) Claudius Ptolemy B) Eratosthenes C) Hypatia D) Hipparchus
Scientists tend to be highly skeptical of new data, hypotheses, and models until they can be tested and verified.
Answer the following statement true (T) or false (F)
The Redfield Ratio is ________.
A. P:C:N 106:16:1 B. P:N:C 106:16:1 C. N:C:P 106:16:1 D. C:N:P 106:16:1 E. C:P:N 106:16:1