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Unit 02 25-26
Chemistry
| Term | Definition |
|---|---|
| Aqueous solution | a solution with water as the solvent |
| Concentration | a measurement of the amount of solute that is dissolved in a specific amount of solvent |
| Dilution | process of reducing the concentration of solute / solvent in a solution by adding more solvent (water) |
| Rate of dissolution | the length of time it takes for a certain amount of solute to dissolve in a solution |
| Solubility | the ability of a substance, the solute, to form a solution with another substance, the solvent |
| Solute | substance that is dissolved into another substance |
| Solution | a mixture of one kind of particles (atoms and molecules) dissolved in another different type of particles (atoms and molecules) |
| Solvent | substance which another substance is dissolved in |
| Agitation | the action of briskly stirring or disturbing something, especially a liquid. |
| Concentrate | a substance made by removing water or other diluting agent; a concentrated form of something, especially food. |
| Corrosive | having the quality of corroding or eating away; harmful or destructive. |
| Dilute | to make a liquid weaker by mixing it with water or another liquid |
| Dissolve | to become incorporated into a liquid so as to form a solution. |
| Heterogeneous mixtures | a mixture in which the composition is not uniform throughout the mixture. |
| Homogeneous mixtures | a gaseous, liquid or solid mixture that has the same proportions of its components throughout a given sample. |
| Kinetic energy | the energy of motion. As temperature increases, kinetic energy increases. |
| Mixture | a substance made by mixing other substances together. |
| Precipitate | cause (a substance) to be deposited in solid form from a solution. |
| Reactivity | how easily a substance reacts chemically with other substances. |
| Surface area | The area of the chemical components utilized in a chemical reaction |
| Temperature | the degree of hotness or coldness of an object |
| Chemical change | a change in matter that produces a new substance |
| Physical change | change which alters the physical properties of a substance without changing its identity |
| Chemical properties | any of a material's properties that becomes evident during, or after, a chemical reaction |
| Photosynthesis | the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. |
| Physical properties | include color, hardness, malleability, solubility, electrical conductivity, density, melting point, and boiling point. |
| atoms | the smallest unit of an element that has all the chemical properties of that element |
| chemical reaction | a chemical change; a process that changes substances into new substances |
| mass | the amount of matter in an object |
| molecule | two or more atoms joined together |
| substance | the physical matter of which living or nonliving things are composed |
| Evidence of a chemical change | unexpected Color change, Gas produced, Light produced, unexpected Temperature change, Precipitate |
Created by:
LMS 7 Sci
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