Can someone help me please I’ll make brainless.

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

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

Name two kinds of practical electric pumps.