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formula

(Encyclopedia) formula, in chemistry, an expression showing the chemical composition of a compound. Formulas of compounds are used in writing the equations (see chemical equations) that represent…

formula

(Encyclopedia) formula, in mathematics and physics, equation expressing a definite fixed relationship between certain quantities. The quantities are usually expressed by letters, and their…

structural formula

(Encyclopedia) structural formula: see formula.

molecular formula

(Encyclopedia) molecular formula: see formula.

empirical formula

(Encyclopedia) empirical formula: see formula.

formula weight

(Encyclopedia) formula weight, in chemistry, a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a formula by the number of atoms of that element present in…

Formula One

(Encyclopedia) Formula One (F1), type of racecar used in Grand Prix automobile racing. Capable of speeds exceeding 230 mph (370 kph), the technologically sophisticated F1 cars are low-slung, open-…

Numbers and Formulas

Cardinal, Ordinal, and Nominal Numbers Factorials Finding Volume Finding Perimeter and Circumference Triangles Finding Area World's Largest Known Prime Number Finding Square Roots Order of Operations…

Common Formulas

CIRCUMFERENCE Circle: C = πd, in which π is 3.1416 and d the diameter.AREA Triangle: A = (ab)/2 , in which a is the base and b the height. Square: A = a2, in which a is one of the sides.…

Numbers & Formulas

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