Physical, Chemical, and States of Matter Study Guide – Flashcards
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Physical Change
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changes the shape or form of the object or material without changing it into a new substance
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Chemical change
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changes the identity of one or more substances so that a new substance is formed
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Physical proprties
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are properties that can be observed without making new substances Example: state, density,color, and hardness
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Chemical Properties
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The ability of a substance to change into another substance or substances. Chemical properties many only be observed by changing or trying to change the substance into new substance.
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Characteristic property
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is a physical or chemical property that does not depend on the quantity (mass or volume) of the substance-useful in identifying and classifying substances
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Particle spacing for Solid
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Very close together
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Particle spacing for Liquid
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almost as close as solid
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Particle spacing for Gas
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spread out
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Particle Speed for Solid
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slowest
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Particle Speed for Liquid
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medium
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Particle Speed for Gas
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very fast
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Particle interaction for Solid
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particles locked in place, vibrating
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Particle interaction for Liquid
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particles stay together but slide past one another
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Particle interaction for Gas
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particles touch/interact very little
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Balance of forces for Solid
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attraction among molecules overwhelms particle energy
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Balance of forces for Liquid
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attractive and particle energy are somewhat balanced
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Balance of forces for Gas
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particle energy overwhelms attraction among molecules
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Volume for Solid
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definite
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Volume for Liquid
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definite
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Volume for Gas
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indefinite- may be compressed or expanded
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Shape for Solid
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definite
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Shape for Liquid
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indefinite-takes the shape of the container
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Shape for Gas
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indefinite-takes the shape of the container
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State of Matter
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States of matter determined by a balance of forces among the particles. Particle Energies (temperature) causes them to move around and spread apart while the attractive Horses smaller particles cause them to stick together. How these forces balanced out determines the state of matter .
