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Chem Ch 1 Vocab
Matter
Question | Answer |
---|---|
Chemistry | the science that investigates and explains the structure and properties of matter |
Matter | anything that takes up space and has mass |
Mass | the measure of the amount of matter an object contains |
Property | the characteristics of matter; how it behaves |
Scientific Model | a thinking device, built on experimentation, that helps us understand and explain macroscopic investigations |
Qualitative | observation made without measurement |
Quantitative | observation made with measurement |
Substance | matter with the same fixed composition and properties |
Mixture | a combination of two or more substances in which the basic identity of each substance is changed |
Physical change | characteristic of matter that is exhibited without a change in identity |
Solution | a mixture that is the same throughout; homogeneous |
Alloy | a solid solution containing different metals, and sometimes nonmetallic substances |
Solvent | the substance that dissolves the solute when making a solution |
Aqueous solution | solution in which water is the solvent |
Element | a substance that cannot be broken down into simple substances |
Compound | a chemical combination of two or more different elements joined together in a fixed proportion |
Formula | a combination of chemical symbols that show what elements make up a compound and the number of each element |
Chemical Change | the change of one or more substances into other substances |
Solute | The substances being dissolved when making a solution |