422-002+Chem+21+Week+1+Notes

Post your class notes here. Augment those of your classmates.

1. Dr. Reich introduced himself to the class.

2. Dr. Reich is my hero just like Tom Brady.

Element is the smallest unique type of matter we can study.

The smallest particle of an element is an atom.

copper chloride and aluminum metal combine to make aluminum chloride and copper metal.

Chemical change--> when matter changes properties oe becomes a different substance (rusting)

Physical change--> liquid to gas, solid to liquid,etc., length, form shape, or temperature. The chemical stays the same but the properties do not.

Quantitative--> quantity, the amount ex. one car, two windows, or time

Qualitative--> quality, property/trait ex. crappy house/nice house.

Intensive--> does not change with the amount of matter present. ex. mass, volume

Extensive--> does change with the amount of matter present ex. boiling point, density