Why do SiO2 and So2 have different molecular geometries despite having the same connectivity

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m

Northern was a learned a fairly cold climate caused by see one from the atlantic ocean, but se was real and tends to be much warmer, sonia look good causes difference. a. cool wins cannot blow across a leg into the south mountains, b. prevent cold air from blowing over into south sea, c.the south is at much higher elevation, so it is closer to the sun, d. suppose early and has a sperience a drastic climate change in the past few years.