In a particular chemical reaction 3 bonds are broken and 4 bonds are formed. Based only on this information, which of the following is true?
A) The reaction has a high activation energy.
B) The reaction is endothermic.
C) the reaction is exothermic.
D) We cannot determine which of the above is true.
D
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Population momentum helps explain which of the following scenarios?
A) Most of the increase in the population of the United States is a result of immigration. B) China's population continues to grow despite their total fertility rate being 1.8. C) Increasing educational opportunities for women decreases the birth rate in India. D) Some European counties are offering incentives to couples who have more than one child.
All weather occurs in the troposphere: a. the atmospheric layer closest to the earth's surface
b. the atmospheric layer found about 100 km above the earth's surface. c. the atmospheric layer above the stratosphere. d. None of these choices.
Which represents the proper pressure cell arrangement for the Hadley Cell?
A. high pressure at A, low pressure at B B. high pressure at A, high pressure at B C. low pressure at A, high pressure at B D. low pressure at A, low pressure at B
The formation of freezing rain involves
A. snow passing through a fairly thin layer of above-freezing air before passing through a thick layer of subfreezing temperatures near the surface. B. snow passing through a fairly thick layer of above-freezing air before passing through a thin layer of subfreezing temperatures near the surface. C. air temperatures decreasing uniformly with height, producing the cold conditions necessary for freezing rain formation. D. air temperatures increasing uniformly with height, producing the cold conditions necessary for freezing rain formation.