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7 Cards in this Set
- Front
- Back
Conservation of mass |
Matter is not created or destroyed during a chemical reaction |
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Hypothesis |
A tentative explanation for an observation, phenomenon, or a scientific problem that can be tested by further investigation; an educated guess. |
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Independent Variable |
The one factor a scientist changes in an experiment |
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Atomic Number |
The number of protons in the nucleus of an atom |
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Atomic Weight |
The average mass of all the isotopes of an element |
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Mole |
The number of atoms of substance equal to the number of atoms in 12 g of carbon 12 6.022 times 10 to the 23rd power atoms. |
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Bias |
Influence in favor of or against something, usually in a way considered to be unfair |