Hydrogen sulfide, H2S, burns in the presence of oxygen, O2, to produce water, H2O, and sulfur dioxide, SO2. Through this reaction, is sulfur oxidized or reduced? 2 H2S + 3 O2 ? 2 H2O + 2 SO2
A) Sulfur is reduced.
B) Sulfur is oxidized.
C) Sulfur is both oxidized and reduced.
D) Sulfur is neither oxidized nor reduced.
B
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Which of the following describes the likely conditions in the centre of a large, middle-latitude continent?
A. abundant precipitation all year long B. a precipitation maximum during winter C. little precipitation at any time of year D. a precipitation maximum during summer
A conductor differs from an insulator in that a conductor has
A) more electrons than protons. B) more protons than electrons. C) more energy than an insulator. D) faster moving molecules. E) none of the above
What state has the highest tornado density?
A) Oklahoma B) Texas C) Kansas D) Missouri
water-borne diseases
What will be an ideal response?