I need help

in which state of matter are molecules moving the slowest?
solid
liquid
gas
all of the above

What does x represent in the formula for the compound xcl4?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy