Kinetic energy is defined as
A) stored energy.
B) energy gained or lost when a substance changes states.
C) energy flow between molecules.
D) the energy of motion.
D
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The part of the northern U.S. boundary with Canada that forms a 1,300-mile (2,100-km) line along 49° north latitude, from Lake of the Woods to the Strait of Georgia, is an example of a physical boundary
Indicate whether the statement is true or false.
Which of the following pairs of reagents reacts to give an ester which is an isomer of propyl acetate?
A) formic acid + 1-butanol B) propanoic acid + methanol C) butanoic acid + ethanol D) none of these
When blue food coloring is stirred into water, the result is a
A. pure liquid. B. homogeneous mixture called a solution. C. homogeneous mixture called a suspension. D. heterogeneous mixture called a suspension. E. heterogeneous mixture called a solution.
Wells are often drilled into landfills to capture valuable
A) plastics. B) leachate. C) methane. D) heavy metals.