Atoms
Chemical or Physical

What is chemical change.
List 2 evidence of a chemical reaction?
Bubbles, fizzing, color change, temperature, new substance formed, fire.
What is the difference between a chemical and physical change?
Chemical changes are not reversible and form a new substance.
Chemical reaction or physical reaction?
What is chemical reaction.
(New substances formed)
What is the Atomic Mass, atomic number and # of neutrons for Iron?
Mass - 55.84 or 56
Atomic # - 26
Neutrons - 30

Chemical or Physical Change

What is chemical change.