Examlex
Identify Conics Without Rotating Axes
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Dalton's Atomic Theory
A scientific theory proposed by John Dalton in the early 19th century, positing that all matter is composed of atoms, indivisible and indestructible building blocks.
Samples of Tin
Examples of tin in various forms for examination or experimentation.
Whole Number Ratios
Ratios that express the relative amounts of elements in a compound using integer values, fundamental to determining chemical formulas.
Hydrofluoric Acid
A highly corrosive acid made of hydrogen and fluorine that is used in various industrial processes.
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