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Unit 02 24-25
Changes in Matter and Solutions
Term | Definition |
---|---|
Aqueous solution | a solution with water as the solvent |
Chemical change | a change in matter that produces a new substance |
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) |
Physical change | change which alters the physical properties of a substance without changing its identity |
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. |
Chemical properties | any of a material's properties that becomes evident during, or after, a chemical reaction |
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. |
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. |
Precipitate | cause (a substance) to be deposited in solid form from a solution. |
Properties | a characteristic of a particular substance that can be observed in a chemical reaction. |
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 |