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two or more atoms attached together in a specific geometrical
arrangement, come in different shapes and patterns
a concise statement of a relationship between phenomena that is always the same under the same conditions.
types of particles, arrangement of the particles, attractions and attachments between the particles
Made up of only one component and its composition is invariant, All samples show the same intensive properties
Made up of two or more components in proportions that can vary from one sample to another, samples may show different intensive properties
Made of one type of atom (some
elements found as multi-atom molecules in nature), combine together to make
Made of one type of molecule, or an array of ions, Units contain two or more different kinds of atoms
the characteristics of matter that can be changed without changing its composition - odor, color, density, appearance, melting point, boiling point, etc.
the characteristics that a substance displays only by changing its composition via contact with other matter or the influence of energy (a chemical change) - corrosiveness, flammability, acidity, toxicity, etc.
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