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Chemistry Final
| Question | Answer |
|---|---|
| Size, shape, color, temperature,texture, and weight. | Physical property |
| Things you cannot observe using the five senses. How a chemical reacts in a given situation. | Chemical property |
| A statement that can be tested. | Hypothesis |
| A general principle that has been developed to explain a wide variety of phenomena. Must be consistent with known experimental results. | Theory |
| An observation that has been repeatedly seen. | Law |
| Does not have a uniform composition. Has different properties in different parts of the mixture. | Heterogeneous |
| Has a uniform composition. Uniform properties in different parts of the mixture. | Homogeneous |
| Formula for density | Mass / Volume |
| Sometimes called Proust's law. States that a chemical compound always contains exactly the same proportion of elements by mass. | Law of Definite Proportions |
| The mass of the products equals the mass of the reactants. | Law of Conservation of Mass |
| Cathode ray led to the discovery of... | the electron |
| Gold foil experiment | structure of the atom |
| 6.0221415 × 10^23 | Avagadro's number |