Chemistry, 02.08.2019 20:30 ayoismeisalex
Which of the following is a strength of experiments? they allow for the establishment of cause-effect relationships. they are not subject to demand characteristics since the subjects do not know they are being observed. they allow us to draw definitive conclusions about behavior in the natural environment based on subjects' behavior in the laboratory. they cannot be repealed by any person other than the scientist. they cannot be repeated by anyone other than the experimenter.
Answers: 3
Chemistry, 22.06.2019 04:40
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
Answers: 2
Chemistry, 22.06.2019 18:00
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
Chemistry, 22.06.2019 20:30
What is a difference between a mixture of elements and a mixture of compounds
Answers: 1
Which of the following is a strength of experiments? they allow for the establishment of cause-effe...
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