The elements sulfur (S) and oxygen (O2) combine to form a substance called sulfur dioxide (SO2). Sulfur dioxide is also formed when coal and oil are burned. Sulfur dioxide can best be described as
A B C D
a metal an atom a compound a nonreactive gas
Question: The elements sulfur (S) and oxygen (O2) combine to form a substance called sulfur dioxide (SO2). Sulfur dioxide is also formed when coal and oil are burned. Sulfur dioxide can best be described as
(A) a metal
(B) an atom
(C) a compound
(D) a nonreactive gas

Answer: (C) a compound
Answer: (A) a metal
Question: The elements sulfur (S) and oxygen (O2) combine to form a substance called sulfur dioxide (SO2). Sulfur dioxide is also formed when coal and oil are burned. Sulfur dioxide can best be described as
(A) a metal
(B) an atom
(C) a compound
(D) a nonreactive gas
Answer: (C) a compound