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  2. Leveling effect - Wikipedia

    en.wikipedia.org/wiki/Leveling_effect

    Similarly the strength of a strong base is leveled by the acidity of the solvent. When a strong acid is dissolved in water, it reacts with it to form hydronium ion (H 3 O +). [2] An example of this would be the following reaction, where "HA" is the strong acid: HA + H 2 O → A − + H 3 O + Any acid that is stronger than H 3 O + reacts with H ...

  3. Engineering and Science Education Program (Philippines)

    en.wikipedia.org/wiki/Engineering_and_Science...

    Curriculum Year Grade 9 Curriculum Year Grade 10 Laboratory Techniques Digital Design Food Science Visual Communication Problem-Based Physics Cell and Molecular Biology Selected Topics in Number Theory Journalism II (Filipino or English) Basic Robotics Selected Topics in Mathematics Data Communications Theater Arts Popular Law Advanced Electronics

  4. Acid–base reaction - Wikipedia

    en.wikipedia.org/wiki/Acid–base_reaction

    In chemistry, an acid–base reaction is a chemical reaction that occurs between an acid and a base.It can be used to determine pH via titration.Several theoretical frameworks provide alternative conceptions of the reaction mechanisms and their application in solving related problems; these are called the acid–base theories, for example, Brønsted–Lowry acid–base theory.

  5. Education in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Education_in_the_Philippines

    The K–10 system co-existed with the current K–12 curriculum from April 24, 2012, until K–10 was entirely phased out on June 5, 2017, upon the effectivity of K–12 in Grade 6. The last batch of the K–10 elementary and high school students have completed primary and secondary education at the end of School Years 2014–2015 and 2016 ...

  6. National Achievement Test - Wikipedia

    en.wikipedia.org/wiki/National_Achievement_Test

    The test is a system-based assessment designed to gauge learning outcomes across target levels in identified periods of basic education. Empirical information on the achievement level of pupils/students serve as a guide for policy makers, administrators, curriculum planners, principles, and teachers, along with analysis on the performance of regions, divisions, schools, and other variables ...

  7. pH indicator - Wikipedia

    en.wikipedia.org/wiki/PH_indicator

    pH indicators: a graphic view. A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. [1]

  8. pH - Wikipedia

    en.wikipedia.org/wiki/PH

    The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases. [ 2 ] The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. [ 3 ]

  9. Superacid - Wikipedia

    en.wikipedia.org/wiki/Superacid

    A strong superacid of this kind is fluoroantimonic acid. Another group of superacids, the carborane acid group, contains some of the strongest known acids. Finally, when treated with anhydrous acid, zeolites [ citation needed ] (microporous aluminosilicate minerals) will contain superacidic sites within their pores.

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