College Chemistry Exam 1
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Anything that has mass and occupies space.
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Matter
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How atoms are connected (bonded) to each other, how far apart they are, and the shape of the molecule.
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Structure
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The type and number of atoms present in a compound or substance.
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Composition
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Characteristics.
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Property
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Interactions between different substances.
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Reactions
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The study of matter-its composition, properties, and transformations.
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Chemistry
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A process for trying to understand nature and the way it behaves, and by conducting experiments to test our ideas.
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Scientific-Method
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A way of acquiring information about nature.
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Observation
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Comparing a characteristic to a standard numerical scale.
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Quantitative-Observation
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Simple descriptions about the characteristics or behavior of nature.
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Qualitative-Observation
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A tentative interpretation of explanation of your observations and provide a basis for further experimentation.
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Hypothesis
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Tests of hypothesis, laws, or theories.
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Experiments
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An explanation of the general principles of certain phenomena with considerable evidence or facts to support it.
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Theory
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Statement of natural phenomena to which no exceptions are known under the given conditions.
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Law
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definite shape and volume, and the particles are close together and cannot be compressed very much.
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Solid
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Particles that lack a regular internal arrangement.
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Amorphous-Solid
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Without shape or form.
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Amorphous
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Particles exist in regular repeating 3D geometric patterns.
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Crystalline-Solid
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No definite shape, but has a definite volume, particles are close together by strong attractive forces and can be compressed slightly.
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Liquid
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No fixed shape, its volume it indefinite, particles are far apart and move independently from each other.
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Gases
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Unique fundamental block of matter and contains all the same atoms and properties.
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Elements
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Chemical combinations of elements or connected group of more than one type of atoms operating as one unit.
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Compounds
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The smallest stable building block of an element.
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Atom
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Uniform in appearance and with uniform properties throughout.
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Homogeneous-Mixture
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Two or more physically distinct phases present in a solution.
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Heterogenous-Mixture
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Properties that depend on quantity.
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Extensive
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Properties that are not dependent of quantity, useful for identifying.
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Intensive
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Characteristics of matter that can be changed without changing its composition and the characteristics can be directly observable.
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Physical-Properties
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Characteristics that determine how the composition of matter changes as a result of contact with other matter or influence of energy (characteristics describes the behavior of matter).
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Chemical-Properties
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Changes from a solid to a gas.
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Subliming
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Changes from a gas to a liquid.
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Condensing
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Change from gas to a solid.
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Deposition
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A measure of the amount of matter in an object.
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Mass
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The force that matter feels due to gravity.
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Weight
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The system of writing measurements we use.
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Significant-Figures
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The ability to do work.
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Energy
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Energy in motion.
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Kinetic
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Energy that is stored.
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Potential
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Energy is neither created nor destroyed, only converted from one form of energy to another form.
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Law-of-Conservation-of-Energy
