States of Matter Review

States of Matter Review - • Particles are in continuous...

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Andrew Rosen States of Matter Mixture: Matter that contains 2 or more different materials Heterogeneous Mixture: Mixture that is composed of 2 or more compounds (ex: soda) that can’t be separated and is not evenly distributed Homogeneous Matter: In 1 phase. Is evenly distributed throughout the sample (can be extracted by distillation) Homogeneous Mixture (Solution): Proportions may vary. You can separate the components physically (ex: salt water) Pure Substance: Includes elements and compounds Physical Property: Observed without producing a new substance Extensive: Depends on amount of sample (ex: mass, volume, weight) Intensive: Doesn’t depend on the amount of sample (ex: density, boiling point, odor) Chemical Property: Reacts or doesn’t react with other substance and creates to new properties Kinetic Molecular Theory Matter is composed of small particles
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Unformatted text preview: • Particles are in continuous motion • Energy transfers from collisions Exothermic Reaction: Reaction which releases energy (warm) Endothermic Reaction: Reaction that absorbs energy (cold) Activation Energy: Minimum amount of energy needed to start a reaction Specific Heat Capacity (Cp): Amount of heat energy needed to raise 1 gram of a substance 1°C Joules (J): Heat energy (q) q = (m)( ∆ T)(Cp) Heat loss = Heat gain (m)( ∆ T)(Cp) = (m)( ∆ T)(Cp) (If the heat of the object decreases then its Initial – Final and vice versa) Heat (enthalpy) of fusion: Amount of heat energy needed to melt a substance at its melting point q = (m)(H of F) Heat of Vaporization: Amount of heat needed to vaporize a substance at boiling point q = (m)(H of V) Triple Point: When all phases are at equilibrium...
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States of Matter Review - • Particles are in continuous...

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