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Ch. 1 Introduction

QuestionAnswer
Analytical Chemistry Study of what and how much of a chemical is in a sample
Organic Chemistry Study of the chemistry of carbon
Inorganic Chemistry Study of elements other thatn carbon
Physical Chemistry Study of energy, chemical reaction rates,properties of gases& physical properties of chemicals
Nuclear Chemistry Study of how elements are transformed into other elements
Elements A single type of atom i.e carbon, hydrogen or iodine
Compounds AKA Molecules Material that contain one or more elements in a specific ration
Mixtures Materials that cannot be written as a precise chemical formula
Heterogeneous Mixtures Have components that can be identified. & if separated by physical methods. Ex. is Beach sand has silicon dioxide, sald, cigarette ashes etc.
Homogeneous Mixtures Cannot have their iddividual components identified & separted by physical methods. Ex. Salt water which can have a lot of small amt of salt but molecules cannot be identified.
Physical changes involved in changing on the form of material. Ex. Freezing water goes from liquid to soldid
Chemical changes involve the formation of new molecules. Ex. yeast, digest sugar form ethanol
Chemical changes 2 Change in smell, color, heat is generated, light or sound is released.
Chemical reactions involves rearranging the elements.
Nuclear reactions Start with a specific element but wind up with another
Created by: LadyE
 

 



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