What is the Lewis structure of BeFCl, shape, bond angle and if it is a polar or non-polar molecule?

Which is true of chemicals? a. things containing chemicals always cost a lot of money. b. chemicals are never dangerous. c. chemicals are in many substances in a home. d. chemicals are rarely found on earth.

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?