How do you know its a Chemical Reaction? Energy is Absorbed (cools) or Released (gives off heat) Light! (sound) Color change Gas formed, Solid formed (precipitate) Not easily reversible (are there exceptions to these… well, yes)
Conservation of Mass Conservation of Energy In a chemical reaction* – matter cannot be created nor destroyed In a chemical reaction* - Energy cannot be created nor destroyed
Hold on – what about atomic bombs OK – you got me – the REAL answer is Matter and energy can neither be created nor destroyed – it can only change forms.
Disclaimer Aloha I put together these power points for use in my science classes. You may use them in your classes. Some images are public domain, some are used under the fair-use provisions of the copyright law, some are mine. Copyright is retained by the owners! Ted Brattstrom