Phases 1, 3, 5 have the same Equation Reference. What is this equation? What does it say? How does this Equation Represent what is happening during this phase?

Compare and contrast physical changes with chemical changes.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

How do dying stars contribute to the formation of planets