What is the name of the hybrid orbitals used by phosphorus in pcl3?

Use examples from the article to explain one positive and one negative effect that chemistry has had on society

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?