Which of the following is an example of water transferring from the atmosphere to the cryosphere?
A.
A riverbed dries up during a severe heat wave and drought.
B.
An iceberg floats into warm waters and melts.
C.
Rain falls on the Earth's surface and seeps into the ground, forming a groundwater reservoir.
D.
Snow falls on a glacier and is gradually compacted into ice over many years.
Answers: 3
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There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
Which of the following is an example of water transferring from the atmosphere to the cryosphere?...
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