Chemistry, 27.01.2020 23:31 yasminothman02
Which of these steps of the scientific method involves stating a relationship but not proposing an explanation for the relationship?
a. scientific law
b. hypothesis
c. theory
Answers: 1
Chemistry, 21.06.2019 21:30, KnMcdonaldk93906
Which substances have the lowest melting points: ionic covalent, or metallic
Answers: 1
Chemistry, 23.06.2019 03:20, coollid876
High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03×108 pa , what is its running pressure in torr?
Answers: 3
Chemistry, 23.06.2019 07:00, MathChic68
Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.
Answers: 2
Which of these steps of the scientific method involves stating a relationship but not proposing an e...
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