What is alchemy? O A. An early form of chemistry that people used to try to turn metal

into gold

B. A belief that chemistry forms the basis of all areas of science

C. An ancient philosophy that taught that all matter was composed

of earth, fire, water, and air

D. A scientific approach to research that uses observations and

measurements to test ideas

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

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.