Identify each of the following energy exchanges as primarily heat or work and determine whether the sign of δe is positive or negative for the system.
a. sweat evaporates from skin, cooling the skin. (the evaporating sweat is the system.)
b. a balloon expands against an external pressure. (the contents of the balloon is the system.)
c. an aqueous chemical reaction mixture is warmed with an external flame. (the reaction mixture is the system.)
Answers: 3
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What is the formula that this ionic compounds could form sr2+p3-o2-
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Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.
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Achemist who studies water samples did a demonstration of how to test for lead in water. she added a clear solution of potassium iodide to a clear solution of lead nitrate. then a yellow swirling solid formed in the liquid. what is most likely true about the yellow solid?
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Drag each pressure unit with the corresponding number to describe standard atmospheric pressure
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Identify each of the following energy exchanges as primarily heat or work and determine whether the...
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