Chemistry, 30.10.2019 04:31 felipeneeds684
Acoffee-cup calorimeter contains 130.0 g of water at 25.1 ∘c . a 121.0-g block of copper metal is heated to 100.4 ∘c by putting it in a beaker of boiling water. the specific heat of cu(s) is 0.385 j/g⋅k. the cu is added to the calorimeter, and after a time the contents of the cup reach a constant temperature of 30.2 ∘c . determine the amount of heat, in j , lost by the copper block.
Answers: 2
Chemistry, 21.06.2019 18:30
Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
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Chemistry, 22.06.2019 04:00
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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Chemistry, 22.06.2019 05:00
Type the letter that represents the correct location for each particle type below.
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Acoffee-cup calorimeter contains 130.0 g of water at 25.1 ∘c . a 121.0-g block of copper metal is he...
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