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| central science that deals with composition, structure, properties, and reactions of matter |
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| First chemists, searching for Gold and Immortality |
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| information that comes through test and observation; sensory or perceptual |
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| 4 steps of Scientific Theory |
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| 1- Observe 2- Write a Hypothesis 3- Experiment 4- Propose a Theory |
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| standard unit of temperature |
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| Originate from a direct count or by definition |
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| degree of reproducibility of a measurement (how close they are) |
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| degree of reliability of a measurement (how close to an exact value) |
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mass
----- describes the heaviness
volume |
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| anything that has mass and occupies space |
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| has uniform properties and can't be physically separated |
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| two or more substances not chemically combined |
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| Can't be made from or decomposed into similar substances by chemical means |
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| substance that can be broken into pure substances by chemical means |
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| contains 2 or more substance physically combined, able to be separated |
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| one visible phase, uniform composition and properties |
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| visibly different phases, each w/ different properties |
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| characteristics observed or measured without changing the identity of the substance |
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| have a definite shape and definite volume |
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| have definite volume but take the shapes of containers |
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| do not have a definite shape or volume |
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| Change in appearance without change in composition |
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| describes how substances interact or change into a new substance |
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| process by which new substances are formed having different compositions or structures than than starting materials |
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| energy stored for use at a later time |
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| energy of matter in motion |
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| amount of heat required to raise the temperature of 1g of water 1 C |
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| amount of energy needed to raise the temperature of 1 gram of a substance by 1 degree Celsius |
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| used to measure heat transfer |
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