01_lecture-akins020111 - Chemistry 10301, Spring 2011...

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1 Chapter 1 Chemistry The Central Science Chemistry 10301, Spring 2011 Instructor: Dr. Daniel L. Akins
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Chemistry: The Central Science 1 1.1 The Study of Chemistry Chemistry You May Already Know The Scientific Method 1.2 Classification of Matter States of Matter Elements Compounds Mixtures 1.3 Scientific Measurements SI Base Units Mass Temperature Derived Units: Volume and Density 1.4 The Properties of Matter Physical Properties Chemical Properties Extensive and Intensive Properties 1.5 Uncertainty in Measurement Significant Figures Calculations with Measured Numbers Accuracy and Precision 1.6 Using Units and Solving Problems Conversion Factors Dimensional Analysis Tracking Units
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The Study of Chemistry Chemistry is the study of matter and the changes that matter undergoes. Matter is anything that has mass and occupies space. 1.1
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The Study of Chemistry Scientists follow a set of guidelines known as the scientific method: gather data via observations and experiments identify patterns or trends in the collected data summarize their findings with a law formulate a hypothesis with time a hypothesis may evolve into a theory
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Classification of Matter Chemists classify matter as either a substance or a mixture of substances. A substance is a form of matter that has definite composition and distinct properties. Substances can be either elements or compounds . Substances differ from one another in composition and may be identified by appearance, smell, taste, and other properties. 1.2
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Classification of Matter All substances can, in principle, exist as a solid, liquid or gas. Solids and liquids are referred to collectively as the condensed phases. The three states of matter can be interconverted without changing the chemical composition of the substance.
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Classification of Matter Solids have particles that are held closely together in an ordered fashion. Particles in a liquid are close together but are not held rigidly in position. Particles in a gas have significant separation from each other and move freely.
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Classification of Matter An element is a substance that cannot be separated into simpler substances by chemical means. An element may consist of atoms or molecules. Atoms of an element Molecular form of an element
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Classification of Matter A compound is a substance composed of two or more elements chemically united in fixed proportions. A compound cannot be separated into simpler substances by any physical process. Separation of a compound into its constituent elements requires a chemical reaction. A compound may consist of
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This note was uploaded on 11/04/2011 for the course WORLD 101 taught by Professor Losa during the Spring '11 term at City College of San Francisco.

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01_lecture-akins020111 - Chemistry 10301, Spring 2011...

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