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Chemistry Chapter: 1

Chemistry Chapter: 1 - Term Definition Chemistry The...

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Unformatted text preview: Term: Definition: Chemistry The science that investigates the structure and properties of matter. Term: Definition: Matter Anything that takes up space and has mass. Term: Definition: Mass The measure of the matter that an object has. Term: Definition: Scientific Models Thinking device that helps you understand macroscopic observations. Term: Definition: Properties of Matter They describe the characteristics and behavior of matter and the changes it goes through. Term: Definition: Macroscopic Can be seen without a Microscope Term: Definition: Submicroscopic Can't be seen by the naked eye Term: Definition: Qualitative Observation These are observations made without measurements Term: Definition: Quantitative Observation These are observations that need measurements Term: Definition: Substance This is matter with the same fixed properties Term: Definition: Mixture It is two or more substances which the identity of each substance is unchanged Term: Definition: Physical Change This is something that does not change in structure only appearance. Term: Definition: Chemical Change This is something that can change its structure. Term: Definition: Solution A liquid mixture where as the minor components are blending with the major components Term: Definition: Alloys Solid solutions containing metals and substances Term: Definition: Solute It is the substance being dissolved Term: Definition: Solvent The substance which dissolves the solute Term: Definition: Compound It is the combination of two or more different elements Term: Definition: Volatile They become gas easily at room temperature Term: Definition: Aqeous Solution It is when the solvent is water Term: Definition: Chemical Formula Combination of the chemicals symbols that show what elements make up a compound and the number of atoms of each element. Term: Definition: Chemical Properties Can only be observed when there is a change in the substance of the substance. Term: Definition: Density Amount of mass contained in a unit of volume. Term: Definition: Energy The capacity to do work. Term: Definition: Exothermic Reaction Chemical Reactions that give off heat. Term: Definition: Endothermic Reaction Chemical Reactions that take in heat. Term: Definition: Homogeneous Mixtures A means to be the same throughout. It can also be called a solution. Term: Definition: Heterogeneous Mixtures A mixture is one that does not have a uniform composition and in which the individual substances remain distinct. ...
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