Silicates
salts that contain metal cations and polyatomic siliconoxygen anions that are usually polymeric
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Chemistry
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Book page:
http://course-notes.org/Chemistry
Silica
the fundamental silicon -- oxygen compound, which has the empirical formula SiO2 and forms the basis of quartz and certain types of sand
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Significant figures
the certain digits and the first uncertain digit of a measurement
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Sigma (s) bond
a covalent bond in which the electron pair is shared in an area centered on a line running between the atoms
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SI units
International System of units based on the metric system and on units derived from the metric system
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Secondary structure (of a protein)
the three -- dimensional structure of the protein chain (for example, a-helix, random coil, or pleated sheet)
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Scintillation counter
an instrument that measures radioactive decay by sensing the flashes of light that the radiation produces in a detector
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Scientific notation
see Exponential notation
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Scientific method
a process of studying natural phenomena that involves making observations, forming laws and theories, and testing theories by experimentation
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Saturated solution
a solution that contains as much solute as can be dissolved in that solution
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