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Chem CH1 Section 1
Chemistry CH1 Chemistry: The Science of Matter Section 1
| Term | Definition |
|---|---|
| alloy | a solid solution containing different metals, and sometimes nonmetallic substances |
| aqueous solution | a solution in which the solvent is water |
| chemistry | the science that investigates and explains the structure and properties of matter |
| compound | a chemical combination of two or more different elements joined together in a fixed proportion |
| element | a substance that cannot be broken down into simpler substances |
| formula | a combination of chemical symbols that show what elements make up a compound and the number of atoms in each element |
| mass | the measure of the amount of matter an object contains |
| matter | anything that takes up space and has mass |
| mixture | a combination of two or more substances in which the basic identity of each substance is not changed |
| physical change | a change in matter where its identity does not change |
| physical property | a characteristic of matter that is exhibited without a change of identity |
| property | the characteristics of matter; how it behaves |
| qualitative | an observation made without measurement |
| quantitative | an observation made with measurement |
| scientific model | a thinking device, built on experimentation, that helps us understand and explain macroscopic observations |
| solute | the substance that is being dissolved when making a solution |
| solvent | the substance that dissolves the solute when making a solution |
| solution | a mixture that is the same throughout, or homogeneous |
| substance | matter with the same fixed composition and properties |