Chemistry, 02.08.2019 16:30 casaescuelarios
A50 g sample of an unknown metal is heated to 90.0c. it is placed in a perfectly insulated container along with 100 g of water at an initial temperature of 20c. after a short time, the temperature of both the metal and water become equal at 25c. the specific heat of water is 4.18 j/gc in this temperature range. what is the specific heat capacity of the metal?
Answers: 2
Chemistry, 22.06.2019 17:40
Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.
Answers: 1
Chemistry, 22.06.2019 22:00
Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 Ă— 10-4 millimeters. express each number in an alternate form.
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Chemistry, 22.06.2019 22:30
Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?
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Chemistry, 22.06.2019 23:30
Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.
Answers: 3
A50 g sample of an unknown metal is heated to 90.0c. it is placed in a perfectly insulated container...
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