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| the substance or substances of which any physical object consists or is composed: the matter of which the earth is made. |
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| the quantity of matter as determined from its weight or from Newton's second law of motion. |
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| the amount of space, measured in cubic units, that an object or substance occupies. |
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| a component or constituent of a whole or one of the parts into which a whole may be resolved by analysis. |
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| the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element. |
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| a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. |
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| an elementary particle having no charge, mass slightly greater than that of a proton. |
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| an elementary particle that is a fundamental constituent of matter, having a negative charge |
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| a representation of a substance using symbols for its constituent elements. |
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| a number that is constant for a given substance, body, or process under certain specified conditions, serving as a measure of one of its properties. |
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| any change from one state (gas, liquid, solid) which is accompanied by alteration of the chemical composition. |
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| any substance that undergoes a chemical change in a given reaction. |
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| a substance obtained from another substance through chemical change. |
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| a process that involves changes in the structure and energy content. |
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| A synthesis reaction occurs when chemical reactions occur to obtain products on purpose. |
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| separation of a substance into two or more substances that may differ from each other and from the original substance. |
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| A single replacement is a chemical reaction that provides oxidation-reduction. |
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| A typical double replacement reaction can occur when two ionic compounds are mixed together. |
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| a chemical reaction accompanied by the evolution of heat. |
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| a chemical reaction accompanied by the absorption of heat. |
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| any combination or blend of different elements, kinds, qualities |
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| the process by which a gas, liquid, or solid is dispersed homogeneously in a gas, liquid, or solid without chemical change. |
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| Law Of Conservation Of Matter |
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| a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system. |
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| any of various proteins, as pepsin, originating from living cells and capable of producing certain chemical changes in organic substances by catalytic action. |
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| a substance that decreases the rate of or stops completely a chemical reaction. |
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| the quality or property of being soluble. |
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| a table illustrating the periodic system, in which the chemical elements, formerly arranged in the order of their atomic weights and now according to their atomic numbers, are shown in related groups. |
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| two or more atoms specifically arranged. |
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