Any liquid or material that is likely to catch fire should be kept away from a
a. balance
b. test tube
c. chemicals
d. hot plate
pretty certain it is d.

Distinguish between a transverse wave and a longitudinal wave.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

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