Chemistry, 14.11.2019 22:31 avastanleyy
A255 ml round--bonom flask is weighed and found to have a mass of 114.85 g. a few millimeters of an easily vaporized liquid are added to the flask and the flask is immersed in a boiling water bath. all of the liquid vaporizes at the boiling tempentture of water, filling the flask with vapor. when all of the liquid has vaporized, the flask is removed from the bath, cooled, dried, and reweighed. the new mass of the flask and the condensed vapor is 115.23 g. which of the following compounds could the liquid be?
a. c₄h₁₀b. c₃h₇ohc. c₂h₆d. c₂h₅ohe. c₄h₉oh
Answers: 1
Chemistry, 22.06.2019 20:00
State one important difference between a physical change and a chemical change?
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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 × 10-4 millimeters. express each number in an alternate form.
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Chemistry, 23.06.2019 01:00
Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.
Answers: 1
A255 ml round--bonom flask is weighed and found to have a mass of 114.85 g. a few millimeters of an...
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