what is the force two charged objects exert on one another if they are 9 meters apart and one has a charge of 2.5 x 10^-7 and the second has a charge of 4.5 x 10^-7

How does convection affect our atmosphere? our layers of earth? our oceans?

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

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?