How many atoms in:

1. PbF3 -

2. Pb2O3 -

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

What shape would a molecule with two bound groups and two lone pairs have?

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.