When coal burns,
A) chemical energy is converted to heat energy.
B) heat energy is created.
C) chemical energy is destroyed.
D) heat energy is converted to electrical energy.
Correct Answer:
Verified
Q52: A major inconvenience of coal as a
Q53: When coal is heated in the absence
Q54: When coal is heated in the absence
Q55: When coal containing sulfur is burned,the sulfur
Q56: Which of the following did NOT contribute
Q58: The major component of natural gas is
A)ethane.
B)methane.
C)butane.
D)octane.
Q59: The lowest grade of coal is
A)anthracite.
B)bituminous.
C)lignite.
D)peat.
Q60: Approximately what percentage of U.S.electricity is generated
Q61: Natural gas burns with a relatively clean
Q62: To make crude petroleum more useful,it must
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