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What Did Freud Really Believe about Personality and the Id&#...How Emotionally Intelligent Are You?How to Calculate the Concentration of a Chemical SolutionWhat Can You Do With a Degree in Psychology?College Interview Questions
By Anne Marie Helmenstine, Ph.D.
In addition to four elements, there were three alchemical 'principles': sulfur, salt, and mercury. Salt represented the contractive force, condensation, and crystallization.
Chemical Element Photo GalleryScience Lab Safety SignsCrystal Photo Gallery
Alphabetical List of ElementsElement Names Spelling QuizElements in the Human Body
Anne Marie Helmenstine, Ph.D.
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