Lesson 2: Chemical Formula of Common Chemical Substances
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4 Terms
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Chemical Formula
is a symbolic expression of an element or a compound. Expressing the types and number of atoms in a substance. Capital letters represent chemical symbols for elements
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Subscripts
indicate the number of atoms of each element. (CO2 the 2)
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Central Atom
for non-diatomic molecules, the first chemical symbol written in the formula is typically the central atom (CO2 the C)
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