Why isn't CaO + H2O= Ca(OH)2 a redox equation?

Arock can be broken down into different kinds of substances by physical processes. no chemical reactions are needed to separate different parts of a rock into pure substances. this is because a rock is a(n)

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?