Upon ingestion, grain alcohol, C2H6O, is metabolized into acetaldehyde, C2H4O, which is a toxic substance causing headaches as well as joint pains typical of a "hangover." Is the grain alcohol oxidized or reduced as it transforms into acetaldehyde?
A. The grain alcohol is oxidized.
B. The grain alcohol is reduced.
C. Some of the grain alcohol is oxidized and some is reduced to other products.
D. The grain alcohol is neither oxidized nor reduced.
Answer: A
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The Japan Trench represents
a. an oceanic-continental convergent plate margin. b. an oceanic-oceanic convergent plate margin. c. an oceanic divergent plate margin. d. a continental divergent plate margin. e. a continental-continental convergent plate margin
Because carbon makes up such a small amount of the earth's atmosphere, even a small change, caused by nature or by humans, affects the earth's climate.
Answer the following statement true (T) or false (F)
The sling psychrometer is an instrument for measuring relative humidity
Indicate whether the statement is true or false
From climate records it is clear that ________
A) a runaway greenhouse effect threatens to kill life on Earth B) the scientific notion of global warming seems to be in error C) Earth's temperatures have actually decreased substantially in the last 100 years D) humans created the greenhouse effect E) there has been warming in the last 100 years