Ethanol is produced industrially by the acid catalyzed reaction of ethylene with water. The balanced equation for this reaction is: C2H4(g) + H2O(g) ? C2H5OH(l) If water is present in excess, how many grams of ethanol can be produced from 42.7 g of ethylene?
A) 42.7 g
B) 46.1 g
C) 70.1 g
D) 92.2 g
C
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Which of the following diseases have been largely eradicated by the use of vaccines?
A) rubella B) polio C) smallpox D) All of these have been largely eradicated through the use of vaccines. E) None of these have been largely eradicated through the use of vaccines.
The focus of the 2001 inquiry of the UN General Assembly into coltan mining in Congo was _______.
Fill in the blank(s) with the appropriate word(s).
________ occurs when mineral-rich groundwater permeates porous tissue and fills the empty spaces, hardening into a fossil
A) Correlation B) Radioactive decay C) Carbonization D) Permineralization
What is the most likely location for contact metamorphism to take place?
a) In Wisconsin Dells (Within stable continental crust) b) In New York (within rocks that are part of an ancient mountain belt) c) In New Orleans (within the Mississippi river delta ) d) In Hawaii (near a hot spot volcano) e) None of the above