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29 Cards in this Set
- Front
- Back
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Accuracy |
Closeness of measurement to true value |
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Chemical property |
Cannot be observed without converting to different substance |
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Chemistry |
Study of substance properties and how they react with each other |
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Compound |
Substance made of 2+ elements chemically bonded |
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Density |
How tightly packed a substance is, d=m/v |
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Element |
Substance cannot be broken down by chemical means |
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Extensive property |
Depends on figures such as mass, volume, hight etc. |
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Heterogeneous mixture |
Parts remain physically separate |
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Homogeneous mixture |
Parts physically combine throughout |
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Hypothesis |
Tentative explanation to observations |
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Intensive property |
Depends on figures such as degrees, time, light etc |
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International system of units |
SI, revised metric |
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Law |
Concise verbal/mathematical statement always true under same conditions |
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Liter |
Non SI figure equal to 1 cubic decimeter (1 kL = 1 cubic m) |
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Macroscopic property |
Measured directly |
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Mass |
Quantity of matter |
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Matter |
Anything occupying space |
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Microscopic property |
Measured indirectly using special equipment |
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Mixture |
Combine 2+ substances while remaining chemically separate |
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Physical property |
Observed without chemical change (color, weight etc) |
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Precision |
Closeness of 2+ measurement to one another |
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Qualitative |
General observations |
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Quantitative |
Numbers obtained by measuring |
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Scientific method |
Systematic approach |
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Significant figures |
Number of meaningful digits |
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Substance |
Definite and constant composition with distinct properties |
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Theory |
Unifying principle explaining body of facts |
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Volume |
Area taken up (length cubed) |
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Weight |
Force gravity puts on object |
