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accurate
Stack #51596
| Question | Answer |
|---|---|
| element | a pure substance made of only one kind of atom (ex. oxygen) |
| compound | a substance that is made from the atoms of two or more elements that are chemically bonded (ex. water) |
| homogeneous mixture | a mixture that all blends together, is uniform (is a solution, salt water) |
| heterogeneous mixture | a mixture that does not blend together, (ex. dirt) |
| physical property | a propertyt that can be observed without changing the element (ex. boiling point) |
| chemical property | the ability of a substance to undergo a change that transforms it into a differfent substance (ex. solubility) |
| rules of significant digits | Zeroes placed before other digits are not significant, Zeroes placed between other digits are always significant, Zeroes placed after other digits but behind a decimal point are significant, Zeroes at the end of a number are significant only if they are |
| accurate | Accuracy is the degree of veracity while precision is the degree of reproducibility |
| percise | ability to be reproduced |
| percent error | 100- error or theo-yield/theoretical |
| percent yield | yield/actual |
Created by:
lilee256