Why do food scientists need to understand chemistry? A. They study how to make plants produce certain chemicals

B. They use complicated machines to produce food products

C. They use chemicals as flavorings and preservatives

D. They study the effects of different foods on the body

Infants born with severe respiratory problems are sometimes given liquid ventilation: they breathe a liquid that can dissolve more oxygen than air can hold. one of these liquids is a fluorinated compound, cf3(cf2)7br. the solubility of oxygen in this liquid is 66 mlo2 per 100 ml liquid. in contrast, air is 21 % oxygen by volume. calculate the moles of o2 present in an infant's lungs (volume: 12 ml ) if the infant takes a full breath of air. assume a pressure of 1 atm in the lungs.

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.