What is the chemical equation for

3fe(s)+4h2o(l)→fe3o4(s)+4h2(g)

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

What is the most common reason for matter changing its state?