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from article Oxygen
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from article Oxygen
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from article Z transform
Extraction of discrete-time sample values from a continuous signal.
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from article Acid-base indicators
Test tube with pH indicator comparing color to scale. (Credit: Shawn Hempel/Alamy Stock Photo)
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from article Acid-base indicators
The end point of a titration marked by a color change from colorless to light pink. (Credit: Matt Meadows/McGraw-Hill Education)
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from article Acid-base indicators
pH paper. (Credit: McGraw-Hill Education/Charles D. Winters)
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from article Acetylene
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from article Bond angle and distance
Bond angle versus torsional angle. (a) Two OOH bond angles in hydrogen peroxide (H2O2). (b) The same molecule when viewed nearly along the OO bond, revealing the torsional angle, that is, the angle between the planes containing each OOH group. (c)…
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from article Buffers (chemistry)
Buffer solutions minimize changes in pH. A buffer solution made up of sodium acetate and acetic acid, called an acetate buffer, will maintain a fairly constant pH in the range of pH 4-6 when a small amount of a strong acid, in this case hydrochloric…
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from article Metal hydrides
Periodic table showing hydride types. No hydride or hydrido complex is known for elements tinted gray.
