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19 Cards in this Set
- Front
- Back
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Matter is anything that occupies space and has mass.
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Weight is related to mass and gravitational force, weight can vary, but mass does not. Inertia is resistance to a change in direction.
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Density is mass divided by volume. (D = M/V)
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Matter exists in three states: solid, liquid, and gas.
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Solids have definite size and shape.
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Liquids have size but not shape.
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Gases have neither shape nor size.
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If a substance consists of just one type of atom, it is an element.
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Combinations of elements in definite groupings are compounds.
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Mixtures can vary in composition.
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Energy exists in many forms and is either kinetic or potential.
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Reactions can be classified as exothermic (Change in H < 0) or endothermic (Change in H > 0), according to the equation Change in H = H products - H reactants.
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Heat is measured by three common temperature scales: Celsius, Fahrenheit, and Kelvin.
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The International System (SI) of units is used in chemistry.
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Exponential notation is used in chemistry. Remember that exponents of 10 are added in multiplication and subtracted in division.
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The factor-labeled method of conversion is used to convert from one form of dimensional analysis to another.
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Precision is concerned with the reliability or reproducibility of a measurement.
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Accuracy is concerned with the closeness of a measurement to an accepted value.
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Uncertainty is related to significant figures.
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