Term
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Definition
| 2 or more substances mixed together in variable proportions. Can be separated by physical means. (i.e. milk chocolate, Alka Seltzer, Quaker Oatmeal, milk chocolate with almonds or a flask of air.) |
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Term
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Definition
| When 2 or more elements combine chemically in fixed proportions. Can be separated by chemical means into original elements. (i.e. Bottled water or salt) |
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Term
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Definition
| A substance that can't be broken down any further by ordinary means. (i.e. only by chemical processes. Copper, Hydrogen, Oxygen etc.) |
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Term
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Definition
| A mixture with physically distinct parts. (i.e. trail mix or salad) |
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Definition
| A mixture that's uniform throughout. (i.e. milk chocolate, a flask of air) |
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Term
| Significant Figure Rule #1 |
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Definition
| All non-zero digits are significant. |
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| Significant Figure Rule #2 |
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Definition
| Zeros sandwiched in-between non-zero numbers are significant. |
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| Significant Figure Rule #3 |
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Definition
| Zeros at the beginning of a number are not significant. |
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| Significant Figure Rule #4 |
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Definition
| Zeros at the end of a # and to the left of a decimal point are significant. |
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Term
| Significant Figure Rule #5 |
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Definition
| Zeros at the end of a # and to the right of an assumed decimal point (floating) may or may not be significant. (Put in scientific notation to resolve ambiguity.) |
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Definition
| Doesn't depend on size of the sample. |
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