Halogenoalkanes have been widely used as aerosol propellants, refrigerants and solvents for many years. fluoroethane, ch3ch2f, has been used as refrigerant. it may be made by reacting ethane with hydrogen fluoride. use relevant bond energies from the data booklet, and the equation below to calculate a value for the bond energy of the c-f bond. ch2=ch2(g) + hf(g) → ch3ch2f(g) ah®= -73 kj mol.

All motion is caused by force? true or false

Which property of water causes water drops to bead on a freshly waxed car?

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.