The ammonium ion has the formula NH4+. How many nonbonding electrons must be shown in the Lewis structure of the ammonium ion?
A) 0
B) 4
C) 8
D) 9
A
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Which of the following is not a problem associated with international agreements?
A. The agreements must be made by unanimous consent. B. The international court affects the sovereignty of noncompliant nations. C. There is no body that can enforce international environmental protection. D. There is no body that can legislate international environmental protection. E. All of these are problems associated with international agreements.
____________________ is an essential component of soil as it provides nutrients to plants and
increases the ability of the soil to retain ____________________. Fill in the blank(s) with the appropriate word(s).
Lightening is an infrequent event, only occurring during frontal lifting
Indicate whether the statement is true or false
The Cornucopian view held by many economists suggests that resource depletion due to greater numbers of people ________
A) will cause a population crash B) poses no problem because humans are too intelligent to allow it to become one C) will lead to natural selection of the most fit individuals D) poses no problem if new resources can be found to replace depleted ones E) poses no problem because disease will limit population size