chemical composition

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  • Info The chemical composition (or simple composition) is a concept in chemistry that has different (but similar) meanings if referred to a single pure substance or a mixture.
  • He found that the chemical composition of stars was very much different than previously assumed.
  • The main idea was to come up with a chemical composition in weight percent.
  • When properly made, there is no difference in chemical composition between the two. Cited from Human Foods and Their Nutritive Value, by Harry Snyder
  • Some of the chemical compositions it identified were new, while others were old.
  • Their chemical composition is created to take in some color of light and reflect the rest.
  • It has the same chemical composition, but with a different structure.
  • They are in fact of a very similar chemical composition.
  • The remaining portion of the lake has a chemical composition which shows the influence of mining activities.
  • Each drug will have a different residence time based on its chemical composition and technique of administration.
  • The chemical composition and constitution of aniline black has not yet been worked out. Cited from The Dyeing of Cotton Fabrics, by Franklin Beech
  • Many facts could be brought forward to show the different chemical composition of plants in different stages of growth. Cited from Scientific American Supplement, No. 623, December 10, 1887, by Various
  • The chemical composition may vary between end member species of a mineral series.
  • Since its re-discovery, there have been numerous research investigations into the use and chemical composition of this material.
  • The chemical composition of the rock remains the same.
  • Although the different stones formally have the same chemical composition, they are not exactly the same.
  • In late spring, grasses begin to form seed and their chemical composition changes. Cited from Organic Gardener's Composting, by Steve Solomon
  • Beginning work with Lavoisier, he studied with him the chemical composition of water.
  • The chemical composition at the surface, which is influenced by age, suggests the former.
  • The research showed that chemical composition of Mulyanka water was different inside and outside the city.
  • Chemical analysis methods may include the analysis of mass, density or chemical composition.
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