I WILL GIVE A Sketch the three classes of levers as best you can including labels label each as to its mechanical advantage (>,<, or =)

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

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