Find the net charge of a system consisting of 212 electrons and 165 protons

Abearing is designed to a reduce friction b. support a load c.guide moving parts such as wheels, shafts and pivots d. all of the above

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)