The Zn/Zn2+ electrode has a standard electrode potential

CHEM 105 NOTES: CHAPTER 2, EXAM 1 MATTER -chemistry: the study of matter and the changes matter undergoes -matter: anything that has mass and occupies space  Forms of matter: 1) Macroscopic: the living world 2) Microscopic: cells, crystals, things that you can see under a microscope 3) Particulate: atoms, molecules, things you cannot see with a microscope  States of matter: 1) Solid: shape and volume are independent of its container a) Crystalline: regular, repeating, 3D patterns (salt, sugar) b) Amorphous: solids without shape or form (gels and plastics) 2) Liquid: has definite volume but not definite shape; particles held together by strong attractive forces 3) Gas: has indefinite volume and no fixed shape; particles move independently; have overcome the attractive force that hold them together  Changes matter undergoes: 1) Physical change: matter changes from one state to another state (solid to liquid to gas) -any change of state is physical change -the matter that is being changed from one state to another remains the same at the particulate level (Ex: ice is always h2o) 2) Chemical change: the chemical identity of a substance is destroyed and a new substance is formed -indicators: color, evolution of heat, light given off, change in odor, explosion SCIENTIFIC NOTATION -method for expressing numbers n -coefficient (a.bcd) will be number 1-10 mul