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  • Chemical reaction - Wikipedia
    A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another [1] When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated
  • Glossary of chemistry terms - Wikipedia
    This glossary of chemistry terms is a list of terms and definitions relevant to chemistry, including chemical laws, diagrams and formulae, laboratory tools, glassware, and equipment Chemistry is a physical science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions; it features an extensive vocabulary and a
  • Chemistry - Wikipedia
    Chemistry is the scientific study of the properties and behavior of matter [1][2] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances [3][4][5][6] Chemistry also
  • State of matter - Wikipedia
    In physics, a state of matter or phase of matter is one of the distinct forms in which matter can exist Four states of matter are observable in everyday life: solid, liquid, gas, and plasma
  • Chemical substance - Wikipedia
    A chemical substance is a unique form of matter with constant chemical composition and characteristic properties [1][2] Chemical substances may take the form of a single element or chemical compounds
  • Phase (matter) - Wikipedia
    Phase transitions When a substance undergoes a phase transition (changes from one state of matter to another) it usually either takes up or releases energy For example, when water evaporates, the increase in kinetic energy as the evaporating molecules escape the attractive forces of the liquid is reflected in a decrease in temperature
  • Phase transition - Wikipedia
    This diagram shows the nomenclature for the different phase transitions In physics, chemistry and biology, a phase transition (or phase change) is the physical process of transition between one state of a medium and another Commonly the term is used to refer to changes among the basic states of matter: solid, liquid, and gas, and in rare cases, plasma A phase of a thermodynamic system and
  • Matter - Wikipedia
    Matter is a general term describing any physical substance, which is sometimes defined in incompatible ways in different fields of science Some definitions are based on historical usage from a time when there was no reason to distinguish mass from simply a quantity of matter By contrast, mass is not a substance but a well-defined, extensive property of matter and other substances or systems





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