Why did thomson’s results from experimenting with cathode rays cause a big change in scientific thought about atoms

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

What happens when an acid dissolves?

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity