When coal is burned,mineral impurities are converted to
A) sulfur dioxide gas that goes up the smokestack.
B) carbon dioxide and water.
C) metal oxide solids that remain behind as ash.
D) All of the above are products of burning coal.
Correct Answer:
Verified
Q46: The United States is estimated to have
Q47: The primary element in coal is
A)carbon.
B)silicon.
C)oxygen.
D)chlorine.
Q48: The highest grade of coal is
A)anthracite.
B)bituminous.
C)lignite.
D)peat.
Q49: A substance that burns readily and releases
Q50: The structural material of plants is largely
A)amylopectin.
B)coal.
C)amylose.
D)cellulose.
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
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