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1. Dictionary

   reaction

   /rɪˈakʃn/

   noun

   • 1. something done, felt, or thought in response to a situation or event: "my immediate reaction was one of relief" Similar responseanswerreplyrejoinderretortripostefeedbackinformal:comebackclapback
   • ▪ a person's ability to respond physically and mentally to external stimuli: "a skilled driver with quick reactions"
   • ▪ an adverse physiological response to a substance that has been breathed in, ingested, or touched: "such allergic reactions as hay fever and asthma"
   • ▪ a mode of thinking or behaving that is deliberately different from previous modes of thought and behaviour: "the work of these painters was a reaction against Fauvism" Similar backlashcounteractionrecoil
   • ▪ opposition to political or social progress or reform: "the institution is under threat from the forces of reaction" Similar conservatismultra-conservatismthe rightthe right wingthe extreme rightcounter-revolutionrevanchism
   • 2. a chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances: "a chemical reaction caused by a build-up of particular sodium salts"
   • ▪ an analogous transformation of atomic nuclei or other particles: "reactions between photons and electrically charged atomic particles"
   • 3. a force exerted in opposition to an applied force: "the law of action and reaction"

   Word Origin late 16th century: from re- + action, originally suggested by medieval Latin reactio(n-), from react- ‘done again’ (see react).

   Derivatives

   • 1. reactionist noun

   Scrabble Points: 10

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   • C

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   More definitions, origin and scrabble points

2. www.purposegames.com › game › chemical-reactions-definitionsChemical Reactions Definitions Quiz - PurposeGames

   www.purposegames.com › game › chemical-reactions-definitions

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   1 day ago · Actions. This online quiz is called Chemical Reactions Definitions. It was created by member Jay Morris1375 and has 48 questions.

3. Videos

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     Chemical reactions introduction | Chemistry of life | Biology | Khan Academy

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     Organic Chemistry - Reaction Mechanisms - Addition, Elimination, Substitution, & Rearrangement

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     Rates of Reactions - Part 1 | Reactions | Chemistry | FuseSchool

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4. www.thoughtco.com › chemistry-vocabulary-terms-you-shouldChemistry Vocabulary: Definitions of Chemistry Terms - ThoughtCo

   www.thoughtco.com › chemistry-vocabulary-terms-you-should

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   Sep 8, 2024 · redox reaction - A redox reaction is a chemical reaction that involves oxidation and reduction. resonance structure - Resonance structures are the set of Lewis structures that can be drawn for a molecule when it has delocalized electrons.

   • Author: Anne Marie Helmenstine, Ph.D.

5. brilliant.org › wiki › rate-of-chemical-reactionsRate of Chemical Reactions | Brilliant Math & Science Wiki

   brilliant.org › wiki › rate-of-chemical-reactions

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   4 days ago · Average rate of chemical reaction is defined as the change in number of moles of reactants and products in unit time for unit volume of reaction mixture. \text {Average rate of reaction} =\frac {\text {change in no. mole}} {\text { (volume) (time)}} Average rate of reaction= (volume) (time)change in no. mole.

6. www.britannica.com › science › photosynthesisPhotosynthesis | Definition, Formula, Process, Diagram, Reactants...

   www.britannica.com › science › photosynthesis

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   Sep 20, 2024 · photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

   • Photosynthesis is critical for the existence of the vast majority of life on Earth. It is the way in which virtually all energy in the biosphere be...
   • The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and...
   • The ability to photosynthesize is found in both eukaryotic and prokaryotic organisms. The most well-known examples are plants, as all but a very fe...

7. www.thoughtco.com › definition-of-balanced-equation-andBalanced Equation Definition and Examples - ThoughtCo

   www.thoughtco.com › definition-of-balanced-equation-and

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   Sep 14, 2024 · A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products. In other words, the mass and the charge are balanced on both sides of the reaction.

   • Author: Anne Marie Helmenstine, Ph.D.

8. www.britannica.com › science › metabolismMetabolism | Definition, Process, & Biology | Britannica

   www.britannica.com › science › metabolism

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   Sep 18, 2024 · Metabolism, the sum of chemical reactions that take place in living cells, providing energy for life processes and the synthesis of cellular material. Living organisms are unique in that they extract energy from their environments via hundreds of coordinated, multistep, enzyme-mediated reactions.

9. en.wikipedia.org › wiki › Newton's_laws_of_motionNewton's laws of motion - Wikipedia

   en.wikipedia.org › wiki › Newton's_laws_of_motion

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   4 days ago · The three laws of motion were first stated by Isaac Newton in his Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), originally published in 1687. [3] Newton used them to investigate and explain the motion of many physical objects and systems.