Name the process of separating into immiseible liquid?

Which best describes how johannes kepler developed his laws of planetary motion

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

What is the formula of the ionic compound composed of calcium cations and chloride anions