Bromine pentafluoride BrF5 is a good example of inter halogen molecule a) What is the Lewis dot structure for bromine pentafluoride?

b) What is the formal charge on bromine?

c) What are the oxidation states on: Br F

d) What is the bond angle in this molecule?

e) What is the geometry of this molecule?

f) This molecule contains POLAR / NONPOLAR bonds. (Circle one)

g) This molecule is POLAR / NONPOLAR. (Circle one)​

Hot air balloons float in the air because of the difference in density between cold and hot air. in this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. to do this, use the following variables and make these assumptions: the combined weight of the pilot basket together with that of the balloon fabric and other equipment is w. the volume of the hot air inside the balloon when it is inflated is v. the absolute temperature of the hot air at the bottom of the balloon is th (where th> tc). the absolute temperature of the cold air outside the balloon is tc and its density is ďc. the balloon is open at the bottom, so that the pressure inside and outside the balloon is the same. as always, treat air as an ideal gas. use g for the magnitude of the acceleration due to gravity.

__can be defined as which velocity changes

How is the shape of the poem “peer” connected to its meaning?