Bromine is less electronegative than chlorine, yet methyl bromide and methyl chloride have very similar dipole moments. why? select the single best answer.

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.

Which statement describes james chadwick’s discovery.

Stage in which a star’s outer layers have started to cool and grow outward?