Chemistry

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  1. 3. composed of two or more parts, elements, or ingredients
  2. 6. theory A scientific theory is an explanation of some aspect of the natural world that can, in accordance with the scientific method, be repeatedly tested, using a predefined protocol of observations and experiments
  3. 8. an elementary particle having no charge, mass slightly greater than that of a proton
  4. 9. any of a class of elementary substances, as gold, silver, or copper, all of which are crystalline when solid and many of which are characterized by opacity, ductility, conductivity, and a unique luster when freshly fractured.
  5. 11. an element not having the character of a metal, as carbon or nitrogen.
  6. 15. an elementary particle that is a fundamental constituent of matter
  7. 16. The product of mixing
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  1. 1. table a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
  2. 2. a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. It is the lightest and most stable baryon, having a charge equal in magnitude to that of the electron.
  3. 4. arrangement The distinction between states (Solid, Liquid, gas)
  4. 5. the branch of knowledge that deals with the creation and use of technical means and their interrelation with life, society, and the environment, drawing upon such subjects as industrial arts, engineering, applied science, and pure science.
  5. 7. a measure of the warmth or coldness of an object or substance with reference to some standard value
  6. 10. a component or constituent of a whole or one of the parts into which a whole may be resolved by analysis
  7. 12. something used for or regarded as representing something else; a material object representing something, often something immaterial; emblem, token, or sign.
  8. 13. the substance or substances of which any physical object consists or is composed
  9. 14. Reaction A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.