Would you expect a hydrogen atom with three electrons to be more chemically reactive or less chemically reactive than a hydrogen atom with two electrons? Briefly explain
What will be an ideal response?
A hydrogen atom with three electrons would be more chemically reactive, that is, it would more readily donate electrons to other atoms. A third electron in a hydrogen atom would reside in the second shell where it would be completely shielded from the nucleus. This electron would be easily lost to a more accommodating atom, such as a second hydrogen atom with only one electron.
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Identify two different geologic processes that may cause climatic change
What will be an ideal response?
Geographic factors are important when considering environmental issues or when evaluating potential sites for a new agricultural area or business because
A. the most important environmental issues and the advantages of sites for a new agricultural areas or businesses are often the same across space. B. location and spatial distributions often affect environmental, social, or economic behavior. C. it is seldom important to investigate environmental issues or evaluate potential sites from a holistic approach. D. environmental policies and zoning regulations seldom consider geographic factors.
What happens to snowflakes as they become progressively buried within glaciers?
A) They become less dense because of large amounts of trapped air. B) They begin to melt as they are insulated from the cold air. C) They become interlocking crystals of ice. D) They can become brighter white because of trapped air. E) All of these are correct.
Spheroidal weathering refers to:
a. tiny broken pieces of rock. b. rounded boulders left by weathering along joints. c. rounded holes or caves left in sandstone cliffs due to hydration. d. rounded rocks split into two halves by thermal expansion and contraction weathering. e. weathering by round salt crystals.