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a chemical compound that neutralizes or effervesces with acids and turns litmus blue; typically, a caustic or corrosive substance of this kind such as lime or soda. (oxford dictionary)

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a blend of pH indicator solutions designed to identify the pH of a solution over a wide range of values. https://www.thoughtco.com/definition-of-universal-indicator-605761

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a dye obtained from certain lichens that is red under acid conditions and blue under alkaline conditions. (oxford dictionary)

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Indicators are substances that change colour when they are added to acidic or alkaline solutions. https://www.bbc.co.uk/bitesize/guides/zqd2bk7/revision/1

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a process in which one or more substances, the reactants, are converted to one or more different substances, the products. https://www.britannica.com/science/chemical-reaction

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something corrosive, as an acid or drug. https://www.dictionary.com/browse/corrosive

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a molecule or other entity that can donate a proton or accept an electron pair in reactions.

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negatively charged molecule made up of one oxygen bonded to one hydrogen. https://study.com/academy/lesson/hydroxide-ion-definition-formula.html

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the nucleus of a hydrogen atom separated from its accompanying electron. https://www.britannica.com/science/hydrogen-ion#:~:text=Hydrogen%20ion%2C%20strictly%2C%20the%20nucleus,used%20to%20represent%20a%20proton.

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an atom or a molecule with a positive or negative electric charge because of losing or gaining one or more electrons. https://www.oxfordlearnersdictionaries.com/definition/english/ion_1?q=ion

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compounds that chemically react with water to produce ions. https://courses.lumenlearning.com/chemistryatomsfirst/chapter/electrolytes/#:~:text=Substances%20that%20dissolve%20in%20water,cations%20and%20anions%2C%20when%20dissolved.

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​the condition of having lost too much water from your body. https://www.oxfordlearnersdictionaries.com/definition/english/dehydration?q=dehydration

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added minerals and salts, intended to replace those lost during exercise. https://www.oxfordlearnersdictionaries.com/definition/english/isotonic?q=isotonic

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dictionary.com
oxford dictionary

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a substance that contains atoms of two or more different elements, and these atoms are chemically joined together. For example, water is a compound of hydrogen and oxygen.

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An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing a single proton and a single electron.

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a positively charged ion that is attracted to the cathode in electrolysis. any positively charged atom or group of atoms (opposed to anion).

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a negatively charged ion, i.e. one that would be attracted to the anode in electrolysis.

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a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

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Learn more about the benefits of AWS education and explore our course catalog to help you achieve your career goals.

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a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

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a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

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an arrangement of lines or shapes created to form a pattern or decoration.

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ideas based on scientific rules and laws that are generally accepted by scientists. They are fundamental truths that are the foundation for other studies. Principles are qualitative.

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the process of reducing or separating something into its components.

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Any substance which has mass and occupies space. All physical objects are composed of matter, in the form of atoms, which are in turn composed of protons, neutrons, and electrons.

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​a group of atoms that forms the smallest unit that a substance can be divided into without a change in its chemical nature

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An atom or a molecule with a positive or negative electric charge caused by its losing or gaining one or more electrons.

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The smallest particle of a chemical element that can exist.