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A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
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Chemical equations represent the identities and relative quantities of substances involved in a chemical reaction. The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation. The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation. Plus signs (+) separate individual reactant and product formulas, and an arrow (→) separates the reactant and product (left and...
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All chemical reactions begin with a reactant, the general term for one or more substances entering the reaction. Sodium and chloride ions, for example, are the reactants in the production of table salt. One or more substances produced by a chemical reaction are called the product. Chemical reactions follow the law of conservation of mass, which means that matter cannot be created nor destroyed in a chemical reaction. The components of the reactants—the number of atoms and the...
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Organic chemistry is the study of compounds of carbon called organic compounds. Organic compounds either originate from living organisms or are synthesized by chemists. A defining trait of these compounds is the presence of carbon as the principal element, which is bonded to other carbon atoms and other elements such as hydrogen, oxygen, nitrogen, and sulfur. The existence of a wide array of organic molecules is a consequence of carbon atoms’ ability to form up to four strong bonds to...
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Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
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Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.
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Do You Speak Chemistry?

Antonio Togni1

  • 1Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093 Zürich, Switzerland. atogni@ethz.ch.

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Summary
This summary is machine-generated.

This reflection explores the language of chemistry, focusing on the Johnstone triangle, nomenclature, pure substances, and structural formulas. It highlights structural formulas as a key representation and introduces chemical transliterations of Platonic solids.

Keywords:
Johnstone trianglePlatonic solidsPure substanceStructural formulaSystematic nomenclature

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Area of Science:

  • Chemistry education
  • Philosophy of chemistry

Background:

  • Decades of experience in chemical research and teaching.
  • The importance of language and representation in understanding chemistry.

Purpose of the Study:

  • To reflect on the multifaceted language of chemistry.
  • To discuss key concepts: Johnstone triangle, nomenclature, pure substances, and structural formulas.
  • To introduce a unique chemical representation: transliteration of Platonic solids.

Main Methods:

  • Personal reflection based on extensive research and teaching experience.
  • Analysis of fundamental chemical concepts and representational tools.
  • Exploration of novel representational methods.

Main Results:

  • The Johnstone triangle provides three levels for chemical thought.
  • Systematic nomenclature requires critical evaluation.
  • The concept of a pure substance is central to chemical understanding.
  • Structural formulas are the most significant representational form in chemistry.
  • Chemical transliteration of Platonic solids offers a unique expressive tool.

Conclusions:

  • Effective communication in chemistry relies on understanding its unique language.
  • Structural formulas are indispensable for representing chemical entities.
  • Novel representations like chemical transliterations can enhance chemical expression.