Chemistry, 18.10.2021 16:00, JosefineRubino2204
Large telescopes have revealed information about the motions of stars. They helped scientists realize that most stars and galaxies are accelerating away from one another. This led scientists to begin to develop the big bang theory. This new theory explained that the universe began as an enormous explosion outward from a single point. The work described in the passage is part of which process used in developing scientific theories? O A. Using observations to spark an idea O B. Using data to develop new technology C. Using imagination to modify existing technology D. Using new technology to modify an existing theory. PLEASE I NEED HELP
Answers: 3
Chemistry, 22.06.2019 10:50, mi364
A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.
Answers: 3
Chemistry, 23.06.2019 03:00, kdcloyd3362
Give a real-world example of an energy transformation that uses two of the following forms of energy: chemical, mechanical, nuclear, gravitational, radiant, electrical, thermal (heat), and/or sound.
Answers: 3
Large telescopes have revealed information about the motions of stars. They helped scientists realiz...
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