Which statement describes early people's beliefs about intelligence and emotions? A. Early people believed Intelligence and emotions originated in the chambers of the brain.
B. Early people believed that the fluid around the brain was the source of intelligence and emotions.
C. Early people believed that sensations in the limbs gave rise to intelligence and emotions.
D. Early people believed that the heart was the center of intelligence and emotions.

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.

Which statement best describes the function of enzymes?

The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?