Matter And Matter And EnergyEnergySAVE PAPER AND INK!!! When you print out the notes on PowerPoint, print "Handouts" instead of "Slides" in the print setup. Also, turn off the backgrounds (Tools>Options>Print>UNcheck "Background Printing")!
Chemical Reactions and Energy•All chemical changes are accompanied by a change in energy•Energyis either absorbed or released as the chemical change takes place.Energy is the ability to do work.
Chemical Reactions and Energy•Energy is primarily released in the forms of heat and/or light•Chemical reactions that release heat energy are called exothermicreactions.•Chemical reactions that absorb heat energy are called endothermicreactions.
Fundamental Chemical Laws—Law of Conservation of Mass•The Law of Conservation of mass says that in a chemical change, matter is neither created nor destroyed. It would be equally correct to call this the law of conservation of matter.