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Physical vs Chemical
| Term | Definition |
|---|---|
| physical property | properties that can be observed without changing the substance |
| quantitative | physical properties such as mass that can be measured with a tool |
| dimensions | measurement of an objects length, width or height |
| temperature | average kinetic energy of a substance |
| mass | amount of matter in an object |
| qualitative | physical properties such as state that can be observed with the senses |
| solubility | ability to dissolve into another substance |
| clarity | ability to see through an object or not |
| malleability | ability to be hammered into thin sheets |
| ductility | ability to be drawn into a wire |
| state | solid, liquid, gas, or plasma |
| conductivity | ability to transfer electricity |
| color | blue, red, green, yellow |
| luster | how shiny an object is |
| hardness | resistance to be scratched or dented |
| taste | perceive the flavor of a substance |
| brittleness | likely to break or snap with pressure |
| odor | a distinctive smell |
| density | mass per unit of volume mass/volume |
| chemical property | property that can only be viewed by changing the substance |
| decomposition | process of decay |
| bleach | to remove the color from, by chemical agents |
| corrosion | process of wearing away of metal due to the enviroment |
| flammability | ability of a substance to burn |
| combustion | act of burning |
| physical change | a change in appearance that does not alter the substance identity |
| solute | solid which is dissolved into a liquid |
| solvent | liquid in which a solid is dissolved into |
| chemical change | .a change that results in a new substance(s) |
| catalyst | a chemical added to a chemical reaction to speed up the reaction |
| law of conservation of mass | matter is neither created nor destroyed during a physical or chemical change it is only transferred or transformed |
| Antoine Lavoisier | French scientist who developed the Law of Conservation of Mass |
| chemical formula | identifies each element by its chemical symbol and indicates the number of atoms of each element |
| subscript | written immediately after the letter of an element and refers to the amount of atoms that element has |
| coefficient | The number of molecules of reactants or products |
| reactants | the compounds or elements in a reaction |
| product | the compounds made in a chemical reaction |
| endothermic | a chemical reaction that takes in energy |
| exothermic | a chemical reaction that releases energy |
| yields | Makes, creates, produces; Arrow in chemical equation |
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