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26 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Systematic Error |
A "constant" error associated with an experimental system itself |
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Random Error |
Error caused by uncontrollable variables in an experiment |
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Precision |
Indicator of how close a series of measurments on the same object are to each other |
Each other |
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Accuracy |
Indicator of how close a measurement (or average) comes to the true accepted value |
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Significant Figures |
All the digits of certainty plus on of uncertainty |
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Mass |
Total quantity of matter in an object |
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Weight |
The measurement of the force exerted on an object by gravitational forces |
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Density Equation |
D=m/v |
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Intensive Property |
Property that is independent of the amount of substajce present |
Temperature, Color, Melting Point, and Density |
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Extensive Properties |
Property that depends on the amount of the substance present |
Mass, Length, and Volume |
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Heterogeneous Mixture |
Contains 2 or more visually distinguishable parts, each of which has different properties |
Sand and Sugar |
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Homogeneous Mixture |
Contains only 1 visually distinguishable part, which has uniform properties throughout |
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Element |
Pure substance that cannot be broken down into simpler pure substances using ordinary chemical means |
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Compound |
Pure substances that can be broken down into 2 or more simpler pure substances using chemical means |
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Atom |
Smallest particle of an element that's exist and still have the properties of an element |
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Molecule |
A group of 2 or more atoms that function as a unit because the atoms are tightly bound together |
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Diatomic Molecule |
Molecule that contains 2 atoms |
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Triatomic Molecule |
A molecule that contains 3 atoms |
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Tetratomic Molecule |
A molecule containing 4 atoms |
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Homoatomic Molecule |
A molecule in which all atoms present are the same kind |
Must be an element |
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Heteroatomic Molecule |
A molecule in which 2 or more different kinds of atoms are present |
Must be a compound |
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Molecular Compound |
Compounds that have heteroatomic molecules as their basis structural unit |
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Ions |
Extended 3D assembly of positively and negatively charged particles |
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Ionic Compound |
Compounds that contain ions |
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What is the limit of physical subdivision? |
Molecule |
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What is the limit of chemical subdivision? |
Atom |
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