chap1.slides.chem & measure

chap1.slides.chem & measure - Chapter 1 Chemistry &...

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Chapter 1 Chemistry & Measurements
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1. Physical Chemistry - deals with the structure of matter, energy changes, and the laws, principles, and theories that explain the transformation of one form of matter into another. 1. Analytical chemistry - deals with the identification, separation, and quantitative determination of the composition of different substances. Principal Branches of Chemistry
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1. Inorganic Chemistry – deals with the chemistry of elements (other than carbon) and their compounds. 3. Organic Chemistry – deals with the synthesis and reactions of compounds of carbon. 1. Biochemistry - deals with the chemistry of compounds and processes occurring in living system.
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Chemistry - the study of the composition, structure, and properties of matter , the reaction by which one form of matter is produced from or converted into other forms. Matter - anything that occupies space and has mass.
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1. solid - is rigid, possesses a definite shape, and has a volume that is very nearly independent of changes in temperature and pressure. Physical States of Matter 2. liquid - flows, takes the shape of its container, slightly compressible, have definite volumes. 3. gas - takes both the shape and the volume of its container, readily compressible and capable of infinite expansion.
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Chemical properties – those that are involved in the way one kind of matter is transformed into another kind. Properties of Matter Examples: combustibility, ability to be oxidized or reduced, reaction with acids or bases. Physical properties - characteristics that do not involve change in the chemical identity of the matter. Examples: color, odor melting point, freezing point, boiling point.
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Intensive properties - do not depend on the amount of matter present. Examples: color, temperature, density, freezing point Extensive propertie s - depends on the amount of matter present, and are additive. Examples: mass, volume, length
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Examples: freezing, condensation, evaporation Changes that matter undergoes Physical change - does not involve a change of one kind of matter into another, no new substance is formed. Separation by Distillation
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Chemical change - always produces one or more different kinds of matter from those that were present before the change occurred. Examples: rusting of iron, oxidation, combustion Reaction of Sodium With Water The product of cabon is always an oxide!
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Classification of Matter 1. Pure substance – matter with one composition all throughout the sample. Examples: water, alcohol, sugar, table salt
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This note was uploaded on 04/17/2008 for the course CHEM 135 taught by Professor Vanlinde during the Fall '08 term at Wisc Stout.

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chap1.slides.chem & measure - Chapter 1 Chemistry &...

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